Tandem
/
certspotter
mirror of https://github.com/SSLMate/certspotter.git
2
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Replace embedded X509 parser with my own lightweight parser

This commit is contained in:
Andrew Ayer 2016-03-16 16:58:00 -07:00
parent 5ccf9fdcd3
commit a071e9490a
30 changed files with 548 additions and 8336 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

65
asn1.go Normal file
View File

@ -0,0 +1,65 @@
package ctwatch
import (
"errors"
"bytes"
"encoding/binary"
"encoding/asn1"
)
func stringFromByteSlice (chars []byte) string {
runes := make([]rune, len(chars))
for i, ch := range chars {
runes[i] = rune(ch)
}
return string(runes)
}
func stringFromUint16Slice (chars []uint16) string {
runes := make([]rune, len(chars))
for i, ch := range chars {
runes[i] = rune(ch)
}
return string(runes)
}
func stringFromUint32Slice (chars []uint32) string {
runes := make([]rune, len(chars))
for i, ch := range chars {
runes[i] = rune(ch)
}
return string(runes)
}
func decodeASN1String (value *asn1.RawValue) (string, error) {
if !value.IsCompound && value.Class == 0 {
if value.Tag == 12 {
// UTF8String
return string(value.Bytes), nil
} else if value.Tag == 19 || value.Tag == 22 || value.Tag == 20 {
// * PrintableString - subset of ASCII
// * IA5String - ASCII
// * TeletexString - 8 bit charset; not quite ISO-8859-1, but often treated as such
// Don't enforce character set rules. Allow any 8 bit character, since
// CAs routinely mess this up
return stringFromByteSlice(value.Bytes), nil
} else if value.Tag == 30 {
// BMPString - Unicode, encoded in big-endian format using two octets
runes := make([]uint16, len(value.Bytes) / 2)
if err := binary.Read(bytes.NewReader(value.Bytes), binary.BigEndian, runes); err != nil {
return "", errors.New("Malformed BMPString: " + err.Error())
}
return stringFromUint16Slice(runes), nil
} else if value.Tag == 28 {
// UniversalString - Unicode, encoded in big-endian format using four octets
runes := make([]uint32, len(value.Bytes) / 4)
if err := binary.Read(bytes.NewReader(value.Bytes), binary.BigEndian, runes); err != nil {
return "", errors.New("Malformed UniversalString: " + err.Error())
}
return stringFromUint32Slice(runes), nil
}
}
return "", errors.New("Not a string")
}

2
cmd/common.go
View File

@ -59,7 +59,7 @@ func LogEntry (info *ctwatch.EntryInfo) {
if !*noSave {
var alreadyPresent bool
var err error
alreadyPresent, info.Filename, err = ctwatch.WriteCertRepository(filepath.Join(stateDir, "certs"), info.Entry)
alreadyPresent, info.Filename, err = ctwatch.WriteCertRepository(filepath.Join(stateDir, "certs"), info.IsPrecert, info.FullChain)
if err != nil {
log.Print(err)
}

18
cmd/ctwatch/main.go
View File

@ -65,25 +65,17 @@ func processEntry (scanner *ctwatch.Scanner, entry *ct.LogEntry) {
info := ctwatch.EntryInfo{
LogUri: scanner.LogUri,
Entry: entry,
IsPrecert: ctwatch.IsPrecert(entry),
FullChain: ctwatch.GetFullChain(entry),
}
// Extract DNS names
var dnsNames []string
dnsNames, info.ParseError = ctwatch.EntryDNSNames(entry)
info.CertInfo, info.ParseError = ctwatch.MakeCertInfo(entry)
if info.ParseError == nil {
if info.ParseError == nil && info.CertInfo.DNSNamesParseError == nil {
// Match DNS names
if !anyDnsNameMatches(dnsNames) {
if !anyDnsNameMatches(info.CertInfo.DNSNames) {
return
}
// Parse the certificate
info.ParsedCert, info.ParseError = ctwatch.ParseEntryCertificate(entry)
if info.ParsedCert != nil {
info.CertInfo = ctwatch.MakeCertInfo(info.ParsedCert)
} else {
info.CertInfo.DnsNames = dnsNames
}
}
cmd.LogEntry(&info)

956
ct/asn1/asn1.go
View File

@ -1,956 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package asn1 implements parsing of DER-encoded ASN.1 data structures,
// as defined in ITU-T Rec X.690.
//
// See also ``A Layman's Guide to a Subset of ASN.1, BER, and DER,''
// http://luca.ntop.org/Teaching/Appunti/asn1.html.
//
// START CT CHANGES
// This is a fork of the Go standard library ASN.1 implementation
// (encoding/asn1). The main difference is that this version tries to correct
// for errors (e.g. use of tagPrintableString when the string data is really
// ISO8859-1 - a common error present in many x509 certificates in the wild.)
// END CT CHANGES
package asn1
// ASN.1 is a syntax for specifying abstract objects and BER, DER, PER, XER etc
// are different encoding formats for those objects. Here, we'll be dealing
// with DER, the Distinguished Encoding Rules. DER is used in X.509 because
// it's fast to parse and, unlike BER, has a unique encoding for every object.
// When calculating hashes over objects, it's important that the resulting
// bytes be the same at both ends and DER removes this margin of error.
//
// ASN.1 is very complex and this package doesn't attempt to implement
// everything by any means.
import (
// START CT CHANGES
"errors"
"fmt"
// END CT CHANGES
"math/big"
"reflect"
// START CT CHANGES
"strings"
// END CT CHANGES
"time"
)
// A StructuralError suggests that the ASN.1 data is valid, but the Go type
// which is receiving it doesn't match.
type StructuralError struct {
Msg string
}
func (e StructuralError) Error() string { return "asn1: structure error: " + e.Msg }
// A SyntaxError suggests that the ASN.1 data is invalid.
type SyntaxError struct {
Msg string
}
func (e SyntaxError) Error() string { return "asn1: syntax error: " + e.Msg }
// We start by dealing with each of the primitive types in turn.
// BOOLEAN
func parseBool(bytes []byte) (ret bool, err error) {
if len(bytes) != 1 {
err = SyntaxError{"invalid boolean"}
return
}
// DER demands that "If the encoding represents the boolean value TRUE,
// its single contents octet shall have all eight bits set to one."
// Thus only 0 and 255 are valid encoded values.
switch bytes[0] {
case 0:
ret = false
case 0xff:
ret = true
default:
err = SyntaxError{"invalid boolean"}
}
return
}
// INTEGER
// parseInt64 treats the given bytes as a big-endian, signed integer and
// returns the result.
func parseInt64(bytes []byte) (ret int64, err error) {
if len(bytes) > 8 {
// We'll overflow an int64 in this case.
err = StructuralError{"integer too large"}
return
}
for bytesRead := 0; bytesRead < len(bytes); bytesRead++ {
ret <<= 8
ret |= int64(bytes[bytesRead])
}
// Shift up and down in order to sign extend the result.
ret <<= 64 - uint8(len(bytes))*8
ret >>= 64 - uint8(len(bytes))*8
return
}
// parseInt treats the given bytes as a big-endian, signed integer and returns
// the result.
func parseInt32(bytes []byte) (int32, error) {
ret64, err := parseInt64(bytes)
if err != nil {
return 0, err
}
if ret64 != int64(int32(ret64)) {
return 0, StructuralError{"integer too large"}
}
return int32(ret64), nil
}
var bigOne = big.NewInt(1)
// parseBigInt treats the given bytes as a big-endian, signed integer and returns
// the result.
func parseBigInt(bytes []byte) *big.Int {
ret := new(big.Int)
if len(bytes) > 0 && bytes[0]&0x80 == 0x80 {
// This is a negative number.
notBytes := make([]byte, len(bytes))
for i := range notBytes {
notBytes[i] = ^bytes[i]
}
ret.SetBytes(notBytes)
ret.Add(ret, bigOne)
ret.Neg(ret)
return ret
}
ret.SetBytes(bytes)
return ret
}
// BIT STRING
// BitString is the structure to use when you want an ASN.1 BIT STRING type. A
// bit string is padded up to the nearest byte in memory and the number of
// valid bits is recorded. Padding bits will be zero.
type BitString struct {
Bytes []byte // bits packed into bytes.
BitLength int // length in bits.
}
// At returns the bit at the given index. If the index is out of range it
// returns false.
func (b BitString) At(i int) int {
if i < 0 || i >= b.BitLength {
return 0
}
x := i / 8
y := 7 - uint(i%8)
return int(b.Bytes[x]>>y) & 1
}
// RightAlign returns a slice where the padding bits are at the beginning. The
// slice may share memory with the BitString.
func (b BitString) RightAlign() []byte {
shift := uint(8 - (b.BitLength % 8))
if shift == 8 || len(b.Bytes) == 0 {
return b.Bytes
}
a := make([]byte, len(b.Bytes))
a[0] = b.Bytes[0] >> shift
for i := 1; i < len(b.Bytes); i++ {
a[i] = b.Bytes[i-1] << (8 - shift)
a[i] |= b.Bytes[i] >> shift
}
return a
}
// parseBitString parses an ASN.1 bit string from the given byte slice and returns it.
func parseBitString(bytes []byte) (ret BitString, err error) {
if len(bytes) == 0 {
err = SyntaxError{"zero length BIT STRING"}
return
}
paddingBits := int(bytes[0])
if paddingBits > 7 ||
len(bytes) == 1 && paddingBits > 0 ||
bytes[len(bytes)-1]&((1<<bytes[0])-1) != 0 {
err = SyntaxError{"invalid padding bits in BIT STRING"}
return
}
ret.BitLength = (len(bytes)-1)*8 - paddingBits
ret.Bytes = bytes[1:]
return
}
// OBJECT IDENTIFIER
// An ObjectIdentifier represents an ASN.1 OBJECT IDENTIFIER.
type ObjectIdentifier []int
// Equal reports whether oi and other represent the same identifier.
func (oi ObjectIdentifier) Equal(other ObjectIdentifier) bool {
if len(oi) != len(other) {
return false
}
for i := 0; i < len(oi); i++ {
if oi[i] != other[i] {
return false
}
}
return true
}
// parseObjectIdentifier parses an OBJECT IDENTIFIER from the given bytes and
// returns it. An object identifier is a sequence of variable length integers
// that are assigned in a hierarchy.
func parseObjectIdentifier(bytes []byte) (s []int, err error) {
if len(bytes) == 0 {
err = SyntaxError{"zero length OBJECT IDENTIFIER"}
return
}
// In the worst case, we get two elements from the first byte (which is
// encoded differently) and then every varint is a single byte long.
s = make([]int, len(bytes)+1)
// The first varint is 40*value1 + value2:
// According to this packing, value1 can take the values 0, 1 and 2 only.
// When value1 = 0 or value1 = 1, then value2 is <= 39. When value1 = 2,
// then there are no restrictions on value2.
v, offset, err := parseBase128Int(bytes, 0)
if err != nil {
return
}
if v < 80 {
s[0] = v / 40
s[1] = v % 40
} else {
s[0] = 2
s[1] = v - 80
}
i := 2
for ; offset < len(bytes); i++ {
v, offset, err = parseBase128Int(bytes, offset)
if err != nil {
return
}
s[i] = v
}
s = s[0:i]
return
}
// ENUMERATED
// An Enumerated is represented as a plain int.
type Enumerated int
// FLAG
// A Flag accepts any data and is set to true if present.
type Flag bool
// parseBase128Int parses a base-128 encoded int from the given offset in the
// given byte slice. It returns the value and the new offset.
func parseBase128Int(bytes []byte, initOffset int) (ret, offset int, err error) {
offset = initOffset
for shifted := 0; offset < len(bytes); shifted++ {
if shifted > 4 {
err = StructuralError{"base 128 integer too large"}
return
}
ret <<= 7
b := bytes[offset]
ret |= int(b & 0x7f)
offset++
if b&0x80 == 0 {
return
}
}
err = SyntaxError{"truncated base 128 integer"}
return
}
// UTCTime
func parseUTCTime(bytes []byte) (ret time.Time, err error) {
s := string(bytes)
ret, err = time.Parse("0601021504Z0700", s)
if err != nil {
ret, err = time.Parse("060102150405Z0700", s)
}
if err == nil && ret.Year() >= 2050 {
// UTCTime only encodes times prior to 2050. See https://tools.ietf.org/html/rfc5280#section-4.1.2.5.1
ret = ret.AddDate(-100, 0, 0)
}
return
}
// parseGeneralizedTime parses the GeneralizedTime from the given byte slice
// and returns the resulting time.
func parseGeneralizedTime(bytes []byte) (ret time.Time, err error) {
return time.Parse("20060102150405Z0700", string(bytes))
}
// PrintableString
// parsePrintableString parses a ASN.1 PrintableString from the given byte
// array and returns it.
func parsePrintableString(bytes []byte) (ret string, err error) {
for _, b := range bytes {
if !isPrintable(b) {
err = SyntaxError{"PrintableString contains invalid character"}
return
}
}
ret = string(bytes)
return
}
// isPrintable returns true iff the given b is in the ASN.1 PrintableString set.
func isPrintable(b byte) bool {
return 'a' <= b && b <= 'z' ||
'A' <= b && b <= 'Z' ||
'0' <= b && b <= '9' ||
'\'' <= b && b <= ')' ||
'+' <= b && b <= '/' ||
b == ' ' ||
b == ':' ||
b == '=' ||
b == '?' ||
// This is technically not allowed in a PrintableString.
// However, x509 certificates with wildcard strings don't
// always use the correct string type so we permit it.
b == '*'
}
// IA5String
// parseIA5String parses a ASN.1 IA5String (ASCII string) from the given
// byte slice and returns it.
func parseIA5String(bytes []byte) (ret string, err error) {
for _, b := range bytes {
if b >= 0x80 {
err = SyntaxError{"IA5String contains invalid character"}
return
}
}
ret = string(bytes)
return
}
// T61String
// parseT61String parses a ASN.1 T61String (8-bit clean string) from the given
// byte slice and returns it.
func parseT61String(bytes []byte) (ret string, err error) {
return string(bytes), nil
}
// UTF8String
// parseUTF8String parses a ASN.1 UTF8String (raw UTF-8) from the given byte
// array and returns it.
func parseUTF8String(bytes []byte) (ret string, err error) {
return string(bytes), nil
}
// A RawValue represents an undecoded ASN.1 object.
type RawValue struct {
Class, Tag int
IsCompound bool
Bytes []byte
FullBytes []byte // includes the tag and length
}
// RawContent is used to signal that the undecoded, DER data needs to be
// preserved for a struct. To use it, the first field of the struct must have
// this type. It's an error for any of the other fields to have this type.
type RawContent []byte
// Tagging
// parseTagAndLength parses an ASN.1 tag and length pair from the given offset
// into a byte slice. It returns the parsed data and the new offset. SET and
// SET OF (tag 17) are mapped to SEQUENCE and SEQUENCE OF (tag 16) since we
// don't distinguish between ordered and unordered objects in this code.
func parseTagAndLength(bytes []byte, initOffset int) (ret tagAndLength, offset int, err error) {
offset = initOffset
b := bytes[offset]
offset++
ret.class = int(b >> 6)
ret.isCompound = b&0x20 == 0x20
ret.tag = int(b & 0x1f)
// If the bottom five bits are set, then the tag number is actually base 128
// encoded afterwards
if ret.tag == 0x1f {
ret.tag, offset, err = parseBase128Int(bytes, offset)
if err != nil {
return
}
}
if offset >= len(bytes) {
err = SyntaxError{"truncated tag or length"}
return
}
b = bytes[offset]
offset++
if b&0x80 == 0 {
// The length is encoded in the bottom 7 bits.
ret.length = int(b & 0x7f)
} else {
// Bottom 7 bits give the number of length bytes to follow.
numBytes := int(b & 0x7f)
if numBytes == 0 {
err = SyntaxError{"indefinite length found (not DER)"}
return
}
ret.length = 0
for i := 0; i < numBytes; i++ {
if offset >= len(bytes) {
err = SyntaxError{"truncated tag or length"}
return
}
b = bytes[offset]
offset++
if ret.length >= 1<<23 {
// We can't shift ret.length up without
// overflowing.
err = StructuralError{"length too large"}
return
}
ret.length <<= 8
ret.length |= int(b)
if ret.length == 0 {
// DER requires that lengths be minimal.
err = StructuralError{"superfluous leading zeros in length"}
return
}
}
}
return
}
// parseSequenceOf is used for SEQUENCE OF and SET OF values. It tries to parse
// a number of ASN.1 values from the given byte slice and returns them as a
// slice of Go values of the given type.
func parseSequenceOf(bytes []byte, sliceType reflect.Type, elemType reflect.Type) (ret reflect.Value, err error) {
expectedTag, compoundType, ok := getUniversalType(elemType)
if !ok {
err = StructuralError{"unknown Go type for slice"}
return
}
// First we iterate over the input and count the number of elements,
// checking that the types are correct in each case.
numElements := 0
for offset := 0; offset < len(bytes); {
var t tagAndLength
t, offset, err = parseTagAndLength(bytes, offset)
if err != nil {
return
}
// We pretend that GENERAL STRINGs are PRINTABLE STRINGs so
// that a sequence of them can be parsed into a []string.
if t.tag == tagGeneralString {
t.tag = tagPrintableString
}
if t.class != classUniversal || t.isCompound != compoundType || t.tag != expectedTag {
err = StructuralError{"sequence tag mismatch"}
return
}
if invalidLength(offset, t.length, len(bytes)) {
err = SyntaxError{"truncated sequence"}
return
}
offset += t.length
numElements++
}
ret = reflect.MakeSlice(sliceType, numElements, numElements)
params := fieldParameters{}
offset := 0
for i := 0; i < numElements; i++ {
offset, err = parseField(ret.Index(i), bytes, offset, params)
if err != nil {
return
}
}
return
}
var (
bitStringType = reflect.TypeOf(BitString{})
objectIdentifierType = reflect.TypeOf(ObjectIdentifier{})
enumeratedType = reflect.TypeOf(Enumerated(0))
flagType = reflect.TypeOf(Flag(false))
timeType = reflect.TypeOf(time.Time{})
rawValueType = reflect.TypeOf(RawValue{})
rawContentsType = reflect.TypeOf(RawContent(nil))
bigIntType = reflect.TypeOf(new(big.Int))
)
// invalidLength returns true iff offset + length > sliceLength, or if the
// addition would overflow.
func invalidLength(offset, length, sliceLength int) bool {
return offset+length < offset || offset+length > sliceLength
}
// START CT CHANGES
// Tests whether the data in |bytes| would be a valid ISO8859-1 string.
// Clearly, a sequence of bytes comprised solely of valid ISO8859-1
// codepoints does not imply that the encoding MUST be ISO8859-1, rather that
// you would not encounter an error trying to interpret the data as such.
func couldBeISO8859_1(bytes []byte) bool {
for _, b := range bytes {
if b < 0x20 || (b >= 0x7F && b < 0xA0) {
return false
}
}
return true
}
// Checks whether the data in |bytes| would be a valid T.61 string.
// Clearly, a sequence of bytes comprised solely of valid T.61
// codepoints does not imply that the encoding MUST be T.61, rather that
// you would not encounter an error trying to interpret the data as such.
func couldBeT61(bytes []byte) bool {
for _, b := range bytes {
switch b {
case 0x00:
// Since we're guessing at (incorrect) encodings for a
// PrintableString, we'll err on the side of caution and disallow
// strings with a NUL in them, don't want to re-create a PayPal NUL
// situation in monitors.
fallthrough
case 0x23, 0x24, 0x5C, 0x5E, 0x60, 0x7B, 0x7D, 0x7E, 0xA5, 0xA6, 0xAC, 0xAD, 0xAE, 0xAF,
0xB9, 0xBA, 0xC0, 0xC9, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9,
0xDA, 0xDB, 0xDC, 0xDE, 0xDF, 0xE5, 0xFF:
// These are all invalid code points in T.61, so it can't be a T.61 string.
return false
}
}
return true
}
// Converts the data in |bytes| to the equivalent UTF-8 string.
func iso8859_1ToUTF8(bytes []byte) string {
buf := make([]rune, len(bytes))
for i, b := range bytes {
buf[i] = rune(b)
}
return string(buf)
}
// END CT CHANGES
// parseField is the main parsing function. Given a byte slice and an offset
// into the array, it will try to parse a suitable ASN.1 value out and store it
// in the given Value.
func parseField(v reflect.Value, bytes []byte, initOffset int, params fieldParameters) (offset int, err error) {
offset = initOffset
fieldType := v.Type()
// If we have run out of data, it may be that there are optional elements at the end.
if offset == len(bytes) {
if !setDefaultValue(v, params) {
err = SyntaxError{"sequence truncated"}
}
return
}
// Deal with raw values.
if fieldType == rawValueType {
var t tagAndLength
t, offset, err = parseTagAndLength(bytes, offset)
if err != nil {
return
}
if invalidLength(offset, t.length, len(bytes)) {
err = SyntaxError{"data truncated"}
return
}
result := RawValue{t.class, t.tag, t.isCompound, bytes[offset : offset+t.length], bytes[initOffset : offset+t.length]}
offset += t.length
v.Set(reflect.ValueOf(result))
return
}
// Deal with the ANY type.
if ifaceType := fieldType; ifaceType.Kind() == reflect.Interface && ifaceType.NumMethod() == 0 {
var t tagAndLength
t, offset, err = parseTagAndLength(bytes, offset)
if err != nil {
return
}
if invalidLength(offset, t.length, len(bytes)) {
err = SyntaxError{"data truncated"}
return
}
var result interface{}
if !t.isCompound && t.class == classUniversal {
innerBytes := bytes[offset : offset+t.length]
switch t.tag {
case tagPrintableString:
result, err = parsePrintableString(innerBytes)
// START CT CHANGES
if err != nil && strings.Contains(err.Error(), "PrintableString contains invalid character") {
// Probably an ISO8859-1 string stuffed in, check if it
// would be valid and assume that's what's happened if so,
// otherwise try T.61, failing that give up and just assign
// the bytes
switch {
case couldBeISO8859_1(innerBytes):
result, err = iso8859_1ToUTF8(innerBytes), nil
case couldBeT61(innerBytes):
result, err = parseT61String(innerBytes)
default:
result = nil
err = errors.New("PrintableString contains invalid character, but couldn't determine correct String type.")
}
}
// END CT CHANGES
case tagIA5String:
result, err = parseIA5String(innerBytes)
case tagT61String:
result, err = parseT61String(innerBytes)
case tagUTF8String:
result, err = parseUTF8String(innerBytes)
case tagInteger:
result, err = parseInt64(innerBytes)
case tagBitString:
result, err = parseBitString(innerBytes)
case tagOID:
result, err = parseObjectIdentifier(innerBytes)
case tagUTCTime:
result, err = parseUTCTime(innerBytes)
case tagOctetString:
result = innerBytes
default:
// If we don't know how to handle the type, we just leave Value as nil.
}
}
offset += t.length
if err != nil {
return
}
if result != nil {
v.Set(reflect.ValueOf(result))
}
return
}
universalTag, compoundType, ok1 := getUniversalType(fieldType)
if !ok1 {
err = StructuralError{fmt.Sprintf("unknown Go type: %v", fieldType)}
return
}
t, offset, err := parseTagAndLength(bytes, offset)
if err != nil {
return
}
if params.explicit {
expectedClass := classContextSpecific
if params.application {
expectedClass = classApplication
}
if t.class == expectedClass && t.tag == *params.tag && (t.length == 0 || t.isCompound) {
if t.length > 0 {
t, offset, err = parseTagAndLength(bytes, offset)
if err != nil {
return
}
} else {
if fieldType != flagType {
err = StructuralError{"zero length explicit tag was not an asn1.Flag"}
return
}
v.SetBool(true)
return
}
} else {
// The tags didn't match, it might be an optional element.
ok := setDefaultValue(v, params)
if ok {
offset = initOffset
} else {
err = StructuralError{"explicitly tagged member didn't match"}
}
return
}
}
// Special case for strings: all the ASN.1 string types map to the Go
// type string. getUniversalType returns the tag for PrintableString
// when it sees a string, so if we see a different string type on the
// wire, we change the universal type to match.
if universalTag == tagPrintableString {
switch t.tag {
case tagIA5String, tagGeneralString, tagT61String, tagUTF8String:
universalTag = t.tag
}
}
// Special case for time: UTCTime and GeneralizedTime both map to the
// Go type time.Time.
if universalTag == tagUTCTime && t.tag == tagGeneralizedTime {
universalTag = tagGeneralizedTime
}
expectedClass := classUniversal
expectedTag := universalTag
if !params.explicit && params.tag != nil {
expectedClass = classContextSpecific
expectedTag = *params.tag
}
if !params.explicit && params.application && params.tag != nil {
expectedClass = classApplication
expectedTag = *params.tag
}
// We have unwrapped any explicit tagging at this point.
if t.class != expectedClass || t.tag != expectedTag || t.isCompound != compoundType {
// Tags don't match. Again, it could be an optional element.
ok := setDefaultValue(v, params)
if ok {
offset = initOffset
} else {
err = StructuralError{fmt.Sprintf("tags don't match (%d vs %+v) %+v %s @%d", expectedTag, t, params, fieldType.Name(), offset)}
}
return
}
if invalidLength(offset, t.length, len(bytes)) {
err = SyntaxError{"data truncated"}
return
}
innerBytes := bytes[offset : offset+t.length]
offset += t.length
// We deal with the structures defined in this package first.
switch fieldType {
case objectIdentifierType:
newSlice, err1 := parseObjectIdentifier(innerBytes)
v.Set(reflect.MakeSlice(v.Type(), len(newSlice), len(newSlice)))
if err1 == nil {
reflect.Copy(v, reflect.ValueOf(newSlice))
}
err = err1
return
case bitStringType:
bs, err1 := parseBitString(innerBytes)
if err1 == nil {
v.Set(reflect.ValueOf(bs))
}
err = err1
return
case timeType:
var time time.Time
var err1 error
if universalTag == tagUTCTime {
time, err1 = parseUTCTime(innerBytes)
} else {
time, err1 = parseGeneralizedTime(innerBytes)
}
if err1 == nil {
v.Set(reflect.ValueOf(time))
}
err = err1
return
case enumeratedType:
parsedInt, err1 := parseInt32(innerBytes)
if err1 == nil {
v.SetInt(int64(parsedInt))
}
err = err1
return
case flagType:
v.SetBool(true)
return
case bigIntType:
parsedInt := parseBigInt(innerBytes)
v.Set(reflect.ValueOf(parsedInt))
return
}
switch val := v; val.Kind() {
case reflect.Bool:
parsedBool, err1 := parseBool(innerBytes)
if err1 == nil {
val.SetBool(parsedBool)
}
err = err1
return
case reflect.Int, reflect.Int32, reflect.Int64:
if val.Type().Size() == 4 {
parsedInt, err1 := parseInt32(innerBytes)
if err1 == nil {
val.SetInt(int64(parsedInt))
}
err = err1
} else {
parsedInt, err1 := parseInt64(innerBytes)
if err1 == nil {
val.SetInt(parsedInt)
}
err = err1
}
return
// TODO(dfc) Add support for the remaining integer types
case reflect.Struct:
structType := fieldType
if structType.NumField() > 0 &&
structType.Field(0).Type == rawContentsType {
bytes := bytes[initOffset:offset]
val.Field(0).Set(reflect.ValueOf(RawContent(bytes)))
}
innerOffset := 0
for i := 0; i < structType.NumField(); i++ {
field := structType.Field(i)
if i == 0 && field.Type == rawContentsType {
continue
}
innerOffset, err = parseField(val.Field(i), innerBytes, innerOffset, parseFieldParameters(field.Tag.Get("asn1")))
if err != nil {
return
}
}
// We allow extra bytes at the end of the SEQUENCE because
// adding elements to the end has been used in X.509 as the
// version numbers have increased.
return
case reflect.Slice:
sliceType := fieldType
if sliceType.Elem().Kind() == reflect.Uint8 {
val.Set(reflect.MakeSlice(sliceType, len(innerBytes), len(innerBytes)))
reflect.Copy(val, reflect.ValueOf(innerBytes))
return
}
newSlice, err1 := parseSequenceOf(innerBytes, sliceType, sliceType.Elem())
if err1 == nil {
val.Set(newSlice)
}
err = err1
return
case reflect.String:
var v string
switch universalTag {
case tagPrintableString:
v, err = parsePrintableString(innerBytes)
case tagIA5String:
v, err = parseIA5String(innerBytes)
case tagT61String:
v, err = parseT61String(innerBytes)
case tagUTF8String:
v, err = parseUTF8String(innerBytes)
case tagGeneralString:
// GeneralString is specified in ISO-2022/ECMA-35,
// A brief review suggests that it includes structures
// that allow the encoding to change midstring and
// such. We give up and pass it as an 8-bit string.
v, err = parseT61String(innerBytes)
default:
err = SyntaxError{fmt.Sprintf("internal error: unknown string type %d", universalTag)}
}
if err == nil {
val.SetString(v)
}
return
}
err = StructuralError{"unsupported: " + v.Type().String()}
return
}
// setDefaultValue is used to install a default value, from a tag string, into
// a Value. It is successful is the field was optional, even if a default value
// wasn't provided or it failed to install it into the Value.
func setDefaultValue(v reflect.Value, params fieldParameters) (ok bool) {
if !params.optional {
return
}
ok = true
if params.defaultValue == nil {
return
}
switch val := v; val.Kind() {
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
val.SetInt(*params.defaultValue)
}
return
}
// Unmarshal parses the DER-encoded ASN.1 data structure b
// and uses the reflect package to fill in an arbitrary value pointed at by val.
// Because Unmarshal uses the reflect package, the structs
// being written to must use upper case field names.
//
// An ASN.1 INTEGER can be written to an int, int32, int64,
// or *big.Int (from the math/big package).
// If the encoded value does not fit in the Go type,
// Unmarshal returns a parse error.
//
// An ASN.1 BIT STRING can be written to a BitString.
//
// An ASN.1 OCTET STRING can be written to a []byte.
//
// An ASN.1 OBJECT IDENTIFIER can be written to an
// ObjectIdentifier.
//
// An ASN.1 ENUMERATED can be written to an Enumerated.
//
// An ASN.1 UTCTIME or GENERALIZEDTIME can be written to a time.Time.
//
// An ASN.1 PrintableString or IA5String can be written to a string.
//
// Any of the above ASN.1 values can be written to an interface{}.
// The value stored in the interface has the corresponding Go type.
// For integers, that type is int64.
//
// An ASN.1 SEQUENCE OF x or SET OF x can be written
// to a slice if an x can be written to the slice's element type.
//
// An ASN.1 SEQUENCE or SET can be written to a struct
// if each of the elements in the sequence can be
// written to the corresponding element in the struct.
//
// The following tags on struct fields have special meaning to Unmarshal:
//
// optional marks the field as ASN.1 OPTIONAL
// [explicit] tag:x specifies the ASN.1 tag number; implies ASN.1 CONTEXT SPECIFIC
// default:x sets the default value for optional integer fields
//
// If the type of the first field of a structure is RawContent then the raw
// ASN1 contents of the struct will be stored in it.
//
// Other ASN.1 types are not supported; if it encounters them,
// Unmarshal returns a parse error.
func Unmarshal(b []byte, val interface{}) (rest []byte, err error) {
return UnmarshalWithParams(b, val, "")
}
// UnmarshalWithParams allows field parameters to be specified for the
// top-level element. The form of the params is the same as the field tags.
func UnmarshalWithParams(b []byte, val interface{}, params string) (rest []byte, err error) {
v := reflect.ValueOf(val).Elem()
offset, err := parseField(v, b, 0, parseFieldParameters(params))
if err != nil {
return nil, err
}
return b[offset:], nil
}

790
ct/asn1/asn1_test.go
View File

@ -1,790 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package asn1
import (
"bytes"
"math/big"
"reflect"
"testing"
"time"
)
type boolTest struct {
in []byte
ok bool
out bool
}
var boolTestData = []boolTest{
{[]byte{0x00}, true, false},
{[]byte{0xff}, true, true},
{[]byte{0x00, 0x00}, false, false},
{[]byte{0xff, 0xff}, false, false},
{[]byte{0x01}, false, false},
}
func TestParseBool(t *testing.T) {
for i, test := range boolTestData {
ret, err := parseBool(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok && ret != test.out {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
type int64Test struct {
in []byte
ok bool
out int64
}
var int64TestData = []int64Test{
{[]byte{0x00}, true, 0},
{[]byte{0x7f}, true, 127},
{[]byte{0x00, 0x80}, true, 128},
{[]byte{0x01, 0x00}, true, 256},
{[]byte{0x80}, true, -128},
{[]byte{0xff, 0x7f}, true, -129},
{[]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff}, true, -1},
{[]byte{0xff}, true, -1},
{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, true, -9223372036854775808},
{[]byte{0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00}, false, 0},
}
func TestParseInt64(t *testing.T) {
for i, test := range int64TestData {
ret, err := parseInt64(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok && ret != test.out {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
type int32Test struct {
in []byte
ok bool
out int32
}
var int32TestData = []int32Test{
{[]byte{0x00}, true, 0},
{[]byte{0x7f}, true, 127},
{[]byte{0x00, 0x80}, true, 128},
{[]byte{0x01, 0x00}, true, 256},
{[]byte{0x80}, true, -128},
{[]byte{0xff, 0x7f}, true, -129},
{[]byte{0xff, 0xff, 0xff, 0xff}, true, -1},
{[]byte{0xff}, true, -1},
{[]byte{0x80, 0x00, 0x00, 0x00}, true, -2147483648},
{[]byte{0x80, 0x00, 0x00, 0x00, 0x00}, false, 0},
}
func TestParseInt32(t *testing.T) {
for i, test := range int32TestData {
ret, err := parseInt32(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if test.ok && int32(ret) != test.out {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
var bigIntTests = []struct {
in []byte
base10 string
}{
{[]byte{0xff}, "-1"},
{[]byte{0x00}, "0"},
{[]byte{0x01}, "1"},
{[]byte{0x00, 0xff}, "255"},
{[]byte{0xff, 0x00}, "-256"},
{[]byte{0x01, 0x00}, "256"},
}
func TestParseBigInt(t *testing.T) {
for i, test := range bigIntTests {
ret := parseBigInt(test.in)
if ret.String() != test.base10 {
t.Errorf("#%d: bad result from %x, got %s want %s", i, test.in, ret.String(), test.base10)
}
fw := newForkableWriter()
marshalBigInt(fw, ret)
result := fw.Bytes()
if !bytes.Equal(result, test.in) {
t.Errorf("#%d: got %x from marshaling %s, want %x", i, result, ret, test.in)
}
}
}
type bitStringTest struct {
in []byte
ok bool
out []byte
bitLength int
}
var bitStringTestData = []bitStringTest{
{[]byte{}, false, []byte{}, 0},
{[]byte{0x00}, true, []byte{}, 0},
{[]byte{0x07, 0x00}, true, []byte{0x00}, 1},
{[]byte{0x07, 0x01}, false, []byte{}, 0},
{[]byte{0x07, 0x40}, false, []byte{}, 0},
{[]byte{0x08, 0x00}, false, []byte{}, 0},
}
func TestBitString(t *testing.T) {
for i, test := range bitStringTestData {
ret, err := parseBitString(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil {
if test.bitLength != ret.BitLength || !bytes.Equal(ret.Bytes, test.out) {
t.Errorf("#%d: Bad result: %v (expected %v %v)", i, ret, test.out, test.bitLength)
}
}
}
}
func TestBitStringAt(t *testing.T) {
bs := BitString{[]byte{0x82, 0x40}, 16}
if bs.At(0) != 1 {
t.Error("#1: Failed")
}
if bs.At(1) != 0 {
t.Error("#2: Failed")
}
if bs.At(6) != 1 {
t.Error("#3: Failed")
}
if bs.At(9) != 1 {
t.Error("#4: Failed")
}
}
type bitStringRightAlignTest struct {
in []byte
inlen int
out []byte
}
var bitStringRightAlignTests = []bitStringRightAlignTest{
{[]byte{0x80}, 1, []byte{0x01}},
{[]byte{0x80, 0x80}, 9, []byte{0x01, 0x01}},
{[]byte{}, 0, []byte{}},
{[]byte{0xce}, 8, []byte{0xce}},
{[]byte{0xce, 0x47}, 16, []byte{0xce, 0x47}},
{[]byte{0x34, 0x50}, 12, []byte{0x03, 0x45}},
}
func TestBitStringRightAlign(t *testing.T) {
for i, test := range bitStringRightAlignTests {
bs := BitString{test.in, test.inlen}
out := bs.RightAlign()
if !bytes.Equal(out, test.out) {
t.Errorf("#%d got: %x want: %x", i, out, test.out)
}
}
}
type objectIdentifierTest struct {
in []byte
ok bool
out []int
}
var objectIdentifierTestData = []objectIdentifierTest{
{[]byte{}, false, []int{}},
{[]byte{85}, true, []int{2, 5}},
{[]byte{85, 0x02}, true, []int{2, 5, 2}},
{[]byte{85, 0x02, 0xc0, 0x00}, true, []int{2, 5, 2, 0x2000}},
{[]byte{0x81, 0x34, 0x03}, true, []int{2, 100, 3}},
{[]byte{85, 0x02, 0xc0, 0x80, 0x80, 0x80, 0x80}, false, []int{}},
}
func TestObjectIdentifier(t *testing.T) {
for i, test := range objectIdentifierTestData {
ret, err := parseObjectIdentifier(test.in)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil {
if !reflect.DeepEqual(test.out, ret) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
}
type timeTest struct {
in string
ok bool
out time.Time
}
var utcTestData = []timeTest{
{"910506164540-0700", true, time.Date(1991, 05, 06, 16, 45, 40, 0, time.FixedZone("", -7*60*60))},
{"910506164540+0730", true, time.Date(1991, 05, 06, 16, 45, 40, 0, time.FixedZone("", 7*60*60+30*60))},
{"910506234540Z", true, time.Date(1991, 05, 06, 23, 45, 40, 0, time.UTC)},
{"9105062345Z", true, time.Date(1991, 05, 06, 23, 45, 0, 0, time.UTC)},
{"a10506234540Z", false, time.Time{}},
{"91a506234540Z", false, time.Time{}},
{"9105a6234540Z", false, time.Time{}},
{"910506a34540Z", false, time.Time{}},
{"910506334a40Z", false, time.Time{}},
{"91050633444aZ", false, time.Time{}},
{"910506334461Z", false, time.Time{}},
{"910506334400Za", false, time.Time{}},
}
func TestUTCTime(t *testing.T) {
for i, test := range utcTestData {
ret, err := parseUTCTime([]byte(test.in))
if err != nil {
if test.ok {
t.Errorf("#%d: parseUTCTime(%q) = error %v", i, test.in, err)
}
continue
}
if !test.ok {
t.Errorf("#%d: parseUTCTime(%q) succeeded, should have failed", i, test.in)
continue
}
const format = "Jan _2 15:04:05 -0700 2006" // ignore zone name, just offset
have := ret.Format(format)
want := test.out.Format(format)
if have != want {
t.Errorf("#%d: parseUTCTime(%q) = %s, want %s", i, test.in, have, want)
}
}
}
var generalizedTimeTestData = []timeTest{
{"20100102030405Z", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.UTC)},
{"20100102030405", false, time.Time{}},
{"20100102030405+0607", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", 6*60*60+7*60))},
{"20100102030405-0607", true, time.Date(2010, 01, 02, 03, 04, 05, 0, time.FixedZone("", -6*60*60-7*60))},
}
func TestGeneralizedTime(t *testing.T) {
for i, test := range generalizedTimeTestData {
ret, err := parseGeneralizedTime([]byte(test.in))
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did fail? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil {
if !reflect.DeepEqual(test.out, ret) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, ret, test.out)
}
}
}
}
type tagAndLengthTest struct {
in []byte
ok bool
out tagAndLength
}
var tagAndLengthData = []tagAndLengthTest{
{[]byte{0x80, 0x01}, true, tagAndLength{2, 0, 1, false}},
{[]byte{0xa0, 0x01}, true, tagAndLength{2, 0, 1, true}},
{[]byte{0x02, 0x00}, true, tagAndLength{0, 2, 0, false}},
{[]byte{0xfe, 0x00}, true, tagAndLength{3, 30, 0, true}},
{[]byte{0x1f, 0x01, 0x00}, true, tagAndLength{0, 1, 0, false}},
{[]byte{0x1f, 0x81, 0x00, 0x00}, true, tagAndLength{0, 128, 0, false}},
{[]byte{0x1f, 0x81, 0x80, 0x01, 0x00}, true, tagAndLength{0, 0x4001, 0, false}},
{[]byte{0x00, 0x81, 0x01}, true, tagAndLength{0, 0, 1, false}},
{[]byte{0x00, 0x82, 0x01, 0x00}, true, tagAndLength{0, 0, 256, false}},
{[]byte{0x00, 0x83, 0x01, 0x00}, false, tagAndLength{}},
{[]byte{0x1f, 0x85}, false, tagAndLength{}},
{[]byte{0x30, 0x80}, false, tagAndLength{}},
// Superfluous zeros in the length should be an error.
{[]byte{0xa0, 0x82, 0x00, 0x01}, false, tagAndLength{}},
// Lengths up to the maximum size of an int should work.
{[]byte{0xa0, 0x84, 0x7f, 0xff, 0xff, 0xff}, true, tagAndLength{2, 0, 0x7fffffff, true}},
// Lengths that would overflow an int should be rejected.
{[]byte{0xa0, 0x84, 0x80, 0x00, 0x00, 0x00}, false, tagAndLength{}},
}
func TestParseTagAndLength(t *testing.T) {
for i, test := range tagAndLengthData {
tagAndLength, _, err := parseTagAndLength(test.in, 0)
if (err == nil) != test.ok {
t.Errorf("#%d: Incorrect error result (did pass? %v, expected: %v)", i, err == nil, test.ok)
}
if err == nil && !reflect.DeepEqual(test.out, tagAndLength) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, tagAndLength, test.out)
}
}
}
type parseFieldParametersTest struct {
in string
out fieldParameters
}
func newInt(n int) *int { return &n }
func newInt64(n int64) *int64 { return &n }
func newString(s string) *string { return &s }
func newBool(b bool) *bool { return &b }
var parseFieldParametersTestData []parseFieldParametersTest = []parseFieldParametersTest{
{"", fieldParameters{}},
{"ia5", fieldParameters{stringType: tagIA5String}},
{"printable", fieldParameters{stringType: tagPrintableString}},
{"optional", fieldParameters{optional: true}},
{"explicit", fieldParameters{explicit: true, tag: new(int)}},
{"application", fieldParameters{application: true, tag: new(int)}},
{"optional,explicit", fieldParameters{optional: true, explicit: true, tag: new(int)}},
{"default:42", fieldParameters{defaultValue: newInt64(42)}},
{"tag:17", fieldParameters{tag: newInt(17)}},
{"optional,explicit,default:42,tag:17", fieldParameters{optional: true, explicit: true, defaultValue: newInt64(42), tag: newInt(17)}},
{"optional,explicit,default:42,tag:17,rubbish1", fieldParameters{true, true, false, newInt64(42), newInt(17), 0, false, false}},
{"set", fieldParameters{set: true}},
}
func TestParseFieldParameters(t *testing.T) {
for i, test := range parseFieldParametersTestData {
f := parseFieldParameters(test.in)
if !reflect.DeepEqual(f, test.out) {
t.Errorf("#%d: Bad result: %v (expected %v)", i, f, test.out)
}
}
}
type TestObjectIdentifierStruct struct {
OID ObjectIdentifier
}
type TestContextSpecificTags struct {
A int `asn1:"tag:1"`
}
type TestContextSpecificTags2 struct {
A int `asn1:"explicit,tag:1"`
B int
}
type TestElementsAfterString struct {
S string
A, B int
}
type TestBigInt struct {
X *big.Int
}
var unmarshalTestData = []struct {
in []byte
out interface{}
}{
{[]byte{0x02, 0x01, 0x42}, newInt(0x42)},
{[]byte{0x30, 0x08, 0x06, 0x06, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d}, &TestObjectIdentifierStruct{[]int{1, 2, 840, 113549}}},
{[]byte{0x03, 0x04, 0x06, 0x6e, 0x5d, 0xc0}, &BitString{[]byte{110, 93, 192}, 18}},
{[]byte{0x30, 0x09, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02, 0x02, 0x01, 0x03}, &[]int{1, 2, 3}},
{[]byte{0x02, 0x01, 0x10}, newInt(16)},
{[]byte{0x13, 0x04, 't', 'e', 's', 't'}, newString("test")},
{[]byte{0x16, 0x04, 't', 'e', 's', 't'}, newString("test")},
{[]byte{0x16, 0x04, 't', 'e', 's', 't'}, &RawValue{0, 22, false, []byte("test"), []byte("\x16\x04test")}},
{[]byte{0x04, 0x04, 1, 2, 3, 4}, &RawValue{0, 4, false, []byte{1, 2, 3, 4}, []byte{4, 4, 1, 2, 3, 4}}},
{[]byte{0x30, 0x03, 0x81, 0x01, 0x01}, &TestContextSpecificTags{1}},
{[]byte{0x30, 0x08, 0xa1, 0x03, 0x02, 0x01, 0x01, 0x02, 0x01, 0x02}, &TestContextSpecificTags2{1, 2}},
{[]byte{0x01, 0x01, 0x00}, newBool(false)},
{[]byte{0x01, 0x01, 0xff}, newBool(true)},
{[]byte{0x30, 0x0b, 0x13, 0x03, 0x66, 0x6f, 0x6f, 0x02, 0x01, 0x22, 0x02, 0x01, 0x33}, &TestElementsAfterString{"foo", 0x22, 0x33}},
{[]byte{0x30, 0x05, 0x02, 0x03, 0x12, 0x34, 0x56}, &TestBigInt{big.NewInt(0x123456)}},
}
func TestUnmarshal(t *testing.T) {
for i, test := range unmarshalTestData {
pv := reflect.New(reflect.TypeOf(test.out).Elem())
val := pv.Interface()
_, err := Unmarshal(test.in, val)
if err != nil {
t.Errorf("Unmarshal failed at index %d %v", i, err)
}
if !reflect.DeepEqual(val, test.out) {
t.Errorf("#%d:\nhave %#v\nwant %#v", i, val, test.out)
}
}
}
type Certificate struct {
TBSCertificate TBSCertificate
SignatureAlgorithm AlgorithmIdentifier
SignatureValue BitString
}
type TBSCertificate struct {
Version int `asn1:"optional,explicit,default:0,tag:0"`
SerialNumber RawValue
SignatureAlgorithm AlgorithmIdentifier
Issuer RDNSequence
Validity Validity
Subject RDNSequence
PublicKey PublicKeyInfo
}
type AlgorithmIdentifier struct {
Algorithm ObjectIdentifier
}
type RDNSequence []RelativeDistinguishedNameSET
type RelativeDistinguishedNameSET []AttributeTypeAndValue
type AttributeTypeAndValue struct {
Type ObjectIdentifier
Value interface{}
}
type Validity struct {
NotBefore, NotAfter time.Time
}
type PublicKeyInfo struct {
Algorithm AlgorithmIdentifier
PublicKey BitString
}
func TestCertificate(t *testing.T) {
// This is a minimal, self-signed certificate that should parse correctly.
var cert Certificate
if _, err := Unmarshal(derEncodedSelfSignedCertBytes, &cert); err != nil {
t.Errorf("Unmarshal failed: %v", err)
}
if !reflect.DeepEqual(cert, derEncodedSelfSignedCert) {
t.Errorf("Bad result:\ngot: %+v\nwant: %+v", cert, derEncodedSelfSignedCert)
}
}
func TestCertificateWithNUL(t *testing.T) {
// This is the paypal NUL-hack certificate. It should fail to parse because
// NUL isn't a permitted character in a PrintableString.
var cert Certificate
if _, err := Unmarshal(derEncodedPaypalNULCertBytes, &cert); err == nil {
t.Error("Unmarshal succeeded, should not have")
}
}
type rawStructTest struct {
Raw RawContent
A int
}
func TestRawStructs(t *testing.T) {
var s rawStructTest
input := []byte{0x30, 0x03, 0x02, 0x01, 0x50}
rest, err := Unmarshal(input, &s)
if len(rest) != 0 {
t.Errorf("incomplete parse: %x", rest)
return
}
if err != nil {
t.Error(err)
return
}
if s.A != 0x50 {
t.Errorf("bad value for A: got %d want %d", s.A, 0x50)
}
if !bytes.Equal([]byte(s.Raw), input) {
t.Errorf("bad value for Raw: got %x want %x", s.Raw, input)
}
}
func TestCouleBeISO8859_1(t *testing.T) {
for i := 0; i < 0xff; i++ {
b := []byte("StringWithA")
b = append(b, byte(i))
switch {
// These values are disallowed:
case i < 0x20, i >= 0x7f && i < 0xa0:
if couldBeISO8859_1(b) {
t.Fatalf("Allowed invalid value %d", i)
}
// These values are allowed:
case i >= 0x20 && i < 0x7f, i >= 0xa0 && i <= 0xff:
if !couldBeISO8859_1(b) {
t.Fatalf("Disallowed valid value %d", i)
}
default:
t.Fatalf("Test logic error - value %d not covered above", i)
}
}
}
func TestCouleBeT61(t *testing.T) {
for i := 0; i < 255; i++ {
b := []byte("StringWithA")
b = append(b, byte(i))
if couldBeT61(b) {
switch i {
case 0x00:
fallthrough
case 0x23, 0x24, 0x5C, 0x5E, 0x60, 0x7B, 0x7D, 0x7E, 0xA5, 0xA6, 0xAC, 0xAD, 0xAE, 0xAF,
0xB9, 0xBA, 0xC0, 0xC9, 0xD0, 0xD1, 0xD2, 0xD3, 0xD4, 0xD5, 0xD6, 0xD7, 0xD8, 0xD9,
0xDA, 0xDB, 0xDC, 0xDE, 0xDF, 0xE5, 0xFF:
t.Fatalf("Allowed string with byte %d", i)
}
}
}
}
func TestISO8859_1ToUTF8(t *testing.T) {
b := []byte{'c', 'a', 'f', 0xE9} // 0xE9 == é in ISO8859-1, but is invalid in UTF8
if string(b) == "café" {
t.Fatal("Sanity failure: that shouldn't have matched")
}
if iso8859_1ToUTF8(b) != "café" {
t.Fatalf("Failed to convert properly, got %v", iso8859_1ToUTF8(b))
}
}
var derEncodedSelfSignedCert = Certificate{
TBSCertificate: TBSCertificate{
Version: 0,
SerialNumber: RawValue{Class: 0, Tag: 2, IsCompound: false, Bytes: []uint8{0x0, 0x8c, 0xc3, 0x37, 0x92, 0x10, 0xec, 0x2c, 0x98}, FullBytes: []byte{2, 9, 0x0, 0x8c, 0xc3, 0x37, 0x92, 0x10, 0xec, 0x2c, 0x98}},
SignatureAlgorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}},
Issuer: RDNSequence{
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 6}, Value: "XX"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 8}, Value: "Some-State"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 7}, Value: "City"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 10}, Value: "Internet Widgits Pty Ltd"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 3}, Value: "false.example.com"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{1, 2, 840, 113549, 1, 9, 1}, Value: "false@example.com"}},
},
Validity: Validity{
NotBefore: time.Date(2009, 10, 8, 00, 25, 53, 0, time.UTC),
NotAfter: time.Date(2010, 10, 8, 00, 25, 53, 0, time.UTC),
},
Subject: RDNSequence{
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 6}, Value: "XX"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 8}, Value: "Some-State"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 7}, Value: "City"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 10}, Value: "Internet Widgits Pty Ltd"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{2, 5, 4, 3}, Value: "false.example.com"}},
RelativeDistinguishedNameSET{AttributeTypeAndValue{Type: ObjectIdentifier{1, 2, 840, 113549, 1, 9, 1}, Value: "false@example.com"}},
},
PublicKey: PublicKeyInfo{
Algorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1}},
PublicKey: BitString{
Bytes: []uint8{
0x30, 0x48, 0x2, 0x41, 0x0, 0xcd, 0xb7,
0x63, 0x9c, 0x32, 0x78, 0xf0, 0x6, 0xaa, 0x27, 0x7f, 0x6e, 0xaf, 0x42,
0x90, 0x2b, 0x59, 0x2d, 0x8c, 0xbc, 0xbe, 0x38, 0xa1, 0xc9, 0x2b, 0xa4,
0x69, 0x5a, 0x33, 0x1b, 0x1d, 0xea, 0xde, 0xad, 0xd8, 0xe9, 0xa5, 0xc2,
0x7e, 0x8c, 0x4c, 0x2f, 0xd0, 0xa8, 0x88, 0x96, 0x57, 0x72, 0x2a, 0x4f,
0x2a, 0xf7, 0x58, 0x9c, 0xf2, 0xc7, 0x70, 0x45, 0xdc, 0x8f, 0xde, 0xec,
0x35, 0x7d, 0x2, 0x3, 0x1, 0x0, 0x1,
},
BitLength: 592,
},
},
},
SignatureAlgorithm: AlgorithmIdentifier{Algorithm: ObjectIdentifier{1, 2, 840, 113549, 1, 1, 5}},
SignatureValue: BitString{
Bytes: []uint8{
0xa6, 0x7b, 0x6, 0xec, 0x5e, 0xce,
0x92, 0x77, 0x2c, 0xa4, 0x13, 0xcb, 0xa3, 0xca, 0x12, 0x56, 0x8f, 0xdc, 0x6c,
0x7b, 0x45, 0x11, 0xcd, 0x40, 0xa7, 0xf6, 0x59, 0x98, 0x4, 0x2, 0xdf, 0x2b,
0x99, 0x8b, 0xb9, 0xa4, 0xa8, 0xcb, 0xeb, 0x34, 0xc0, 0xf0, 0xa7, 0x8c, 0xf8,
0xd9, 0x1e, 0xde, 0x14, 0xa5, 0xed, 0x76, 0xbf, 0x11, 0x6f, 0xe3, 0x60, 0xaa,
0xfa, 0x88, 0x21, 0x49, 0x4, 0x35,
},
BitLength: 512,
},
}
var derEncodedSelfSignedCertBytes = []byte{
0x30, 0x82, 0x02, 0x18, 0x30,
0x82, 0x01, 0xc2, 0x02, 0x09, 0x00, 0x8c, 0xc3, 0x37, 0x92, 0x10, 0xec, 0x2c,
0x98, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01,
0x05, 0x05, 0x00, 0x30, 0x81, 0x92, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
0x04, 0x06, 0x13, 0x02, 0x58, 0x58, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55,
0x04, 0x08, 0x13, 0x0a, 0x53, 0x6f, 0x6d, 0x65, 0x2d, 0x53, 0x74, 0x61, 0x74,
0x65, 0x31, 0x0d, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x04, 0x43,
0x69, 0x74, 0x79, 0x31, 0x21, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13,
0x18, 0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x57, 0x69, 0x64,
0x67, 0x69, 0x74, 0x73, 0x20, 0x50, 0x74, 0x79, 0x20, 0x4c, 0x74, 0x64, 0x31,
0x1a, 0x30, 0x18, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x11, 0x66, 0x61, 0x6c,
0x73, 0x65, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f,
0x6d, 0x31, 0x20, 0x30, 0x1e, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d,
0x01, 0x09, 0x01, 0x16, 0x11, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x40, 0x65, 0x78,
0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x30, 0x1e, 0x17, 0x0d,
0x30, 0x39, 0x31, 0x30, 0x30, 0x38, 0x30, 0x30, 0x32, 0x35, 0x35, 0x33, 0x5a,
0x17, 0x0d, 0x31, 0x30, 0x31, 0x30, 0x30, 0x38, 0x30, 0x30, 0x32, 0x35, 0x35,
0x33, 0x5a, 0x30, 0x81, 0x92, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04,
0x06, 0x13, 0x02, 0x58, 0x58, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04,
0x08, 0x13, 0x0a, 0x53, 0x6f, 0x6d, 0x65, 0x2d, 0x53, 0x74, 0x61, 0x74, 0x65,
0x31, 0x0d, 0x30, 0x0b, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x04, 0x43, 0x69,
0x74, 0x79, 0x31, 0x21, 0x30, 0x1f, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x18,
0x49, 0x6e, 0x74, 0x65, 0x72, 0x6e, 0x65, 0x74, 0x20, 0x57, 0x69, 0x64, 0x67,
0x69, 0x74, 0x73, 0x20, 0x50, 0x74, 0x79, 0x20, 0x4c, 0x74, 0x64, 0x31, 0x1a,
0x30, 0x18, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x11, 0x66, 0x61, 0x6c, 0x73,
0x65, 0x2e, 0x65, 0x78, 0x61, 0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d,
0x31, 0x20, 0x30, 0x1e, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01,
0x09, 0x01, 0x16, 0x11, 0x66, 0x61, 0x6c, 0x73, 0x65, 0x40, 0x65, 0x78, 0x61,
0x6d, 0x70, 0x6c, 0x65, 0x2e, 0x63, 0x6f, 0x6d, 0x30, 0x5c, 0x30, 0x0d, 0x06,
0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03,
0x4b, 0x00, 0x30, 0x48, 0x02, 0x41, 0x00, 0xcd, 0xb7, 0x63, 0x9c, 0x32, 0x78,
0xf0, 0x06, 0xaa, 0x27, 0x7f, 0x6e, 0xaf, 0x42, 0x90, 0x2b, 0x59, 0x2d, 0x8c,
0xbc, 0xbe, 0x38, 0xa1, 0xc9, 0x2b, 0xa4, 0x69, 0x5a, 0x33, 0x1b, 0x1d, 0xea,
0xde, 0xad, 0xd8, 0xe9, 0xa5, 0xc2, 0x7e, 0x8c, 0x4c, 0x2f, 0xd0, 0xa8, 0x88,
0x96, 0x57, 0x72, 0x2a, 0x4f, 0x2a, 0xf7, 0x58, 0x9c, 0xf2, 0xc7, 0x70, 0x45,
0xdc, 0x8f, 0xde, 0xec, 0x35, 0x7d, 0x02, 0x03, 0x01, 0x00, 0x01, 0x30, 0x0d,
0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05, 0x05, 0x00,
0x03, 0x41, 0x00, 0xa6, 0x7b, 0x06, 0xec, 0x5e, 0xce, 0x92, 0x77, 0x2c, 0xa4,
0x13, 0xcb, 0xa3, 0xca, 0x12, 0x56, 0x8f, 0xdc, 0x6c, 0x7b, 0x45, 0x11, 0xcd,
0x40, 0xa7, 0xf6, 0x59, 0x98, 0x04, 0x02, 0xdf, 0x2b, 0x99, 0x8b, 0xb9, 0xa4,
0xa8, 0xcb, 0xeb, 0x34, 0xc0, 0xf0, 0xa7, 0x8c, 0xf8, 0xd9, 0x1e, 0xde, 0x14,
0xa5, 0xed, 0x76, 0xbf, 0x11, 0x6f, 0xe3, 0x60, 0xaa, 0xfa, 0x88, 0x21, 0x49,
0x04, 0x35,
}
var derEncodedPaypalNULCertBytes = []byte{
0x30, 0x82, 0x06, 0x44, 0x30,
0x82, 0x05, 0xad, 0xa0, 0x03, 0x02, 0x01, 0x02, 0x02, 0x03, 0x00, 0xf0, 0x9b,
0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05,
0x05, 0x00, 0x30, 0x82, 0x01, 0x12, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55,
0x04, 0x06, 0x13, 0x02, 0x45, 0x53, 0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55,
0x04, 0x08, 0x13, 0x09, 0x42, 0x61, 0x72, 0x63, 0x65, 0x6c, 0x6f, 0x6e, 0x61,
0x31, 0x12, 0x30, 0x10, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x09, 0x42, 0x61,
0x72, 0x63, 0x65, 0x6c, 0x6f, 0x6e, 0x61, 0x31, 0x29, 0x30, 0x27, 0x06, 0x03,
0x55, 0x04, 0x0a, 0x13, 0x20, 0x49, 0x50, 0x53, 0x20, 0x43, 0x65, 0x72, 0x74,
0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x41, 0x75, 0x74,
0x68, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x20, 0x73, 0x2e, 0x6c, 0x2e, 0x31, 0x2e,
0x30, 0x2c, 0x06, 0x03, 0x55, 0x04, 0x0a, 0x14, 0x25, 0x67, 0x65, 0x6e, 0x65,
0x72, 0x61, 0x6c, 0x40, 0x69, 0x70, 0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d,
0x20, 0x43, 0x2e, 0x49, 0x2e, 0x46, 0x2e, 0x20, 0x20, 0x42, 0x2d, 0x42, 0x36,
0x32, 0x32, 0x31, 0x30, 0x36, 0x39, 0x35, 0x31, 0x2e, 0x30, 0x2c, 0x06, 0x03,
0x55, 0x04, 0x0b, 0x13, 0x25, 0x69, 0x70, 0x73, 0x43, 0x41, 0x20, 0x43, 0x4c,
0x41, 0x53, 0x45, 0x41, 0x31, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69,
0x63, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f, 0x72,
0x69, 0x74, 0x79, 0x31, 0x2e, 0x30, 0x2c, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13,
0x25, 0x69, 0x70, 0x73, 0x43, 0x41, 0x20, 0x43, 0x4c, 0x41, 0x53, 0x45, 0x41,
0x31, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74, 0x69,
0x6f, 0x6e, 0x20, 0x41, 0x75, 0x74, 0x68, 0x6f, 0x72, 0x69, 0x74, 0x79, 0x31,
0x20, 0x30, 0x1e, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x09,
0x01, 0x16, 0x11, 0x67, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x6c, 0x40, 0x69, 0x70,
0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x30, 0x1e, 0x17, 0x0d, 0x30, 0x39,
0x30, 0x32, 0x32, 0x34, 0x32, 0x33, 0x30, 0x34, 0x31, 0x37, 0x5a, 0x17, 0x0d,
0x31, 0x31, 0x30, 0x32, 0x32, 0x34, 0x32, 0x33, 0x30, 0x34, 0x31, 0x37, 0x5a,
0x30, 0x81, 0x94, 0x31, 0x0b, 0x30, 0x09, 0x06, 0x03, 0x55, 0x04, 0x06, 0x13,
0x02, 0x55, 0x53, 0x31, 0x13, 0x30, 0x11, 0x06, 0x03, 0x55, 0x04, 0x08, 0x13,
0x0a, 0x43, 0x61, 0x6c, 0x69, 0x66, 0x6f, 0x72, 0x6e, 0x69, 0x61, 0x31, 0x16,
0x30, 0x14, 0x06, 0x03, 0x55, 0x04, 0x07, 0x13, 0x0d, 0x53, 0x61, 0x6e, 0x20,
0x46, 0x72, 0x61, 0x6e, 0x63, 0x69, 0x73, 0x63, 0x6f, 0x31, 0x11, 0x30, 0x0f,
0x06, 0x03, 0x55, 0x04, 0x0a, 0x13, 0x08, 0x53, 0x65, 0x63, 0x75, 0x72, 0x69,
0x74, 0x79, 0x31, 0x14, 0x30, 0x12, 0x06, 0x03, 0x55, 0x04, 0x0b, 0x13, 0x0b,
0x53, 0x65, 0x63, 0x75, 0x72, 0x65, 0x20, 0x55, 0x6e, 0x69, 0x74, 0x31, 0x2f,
0x30, 0x2d, 0x06, 0x03, 0x55, 0x04, 0x03, 0x13, 0x26, 0x77, 0x77, 0x77, 0x2e,
0x70, 0x61, 0x79, 0x70, 0x61, 0x6c, 0x2e, 0x63, 0x6f, 0x6d, 0x00, 0x73, 0x73,
0x6c, 0x2e, 0x73, 0x65, 0x63, 0x75, 0x72, 0x65, 0x63, 0x6f, 0x6e, 0x6e, 0x65,
0x63, 0x74, 0x69, 0x6f, 0x6e, 0x2e, 0x63, 0x63, 0x30, 0x81, 0x9f, 0x30, 0x0d,
0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00,
0x03, 0x81, 0x8d, 0x00, 0x30, 0x81, 0x89, 0x02, 0x81, 0x81, 0x00, 0xd2, 0x69,
0xfa, 0x6f, 0x3a, 0x00, 0xb4, 0x21, 0x1b, 0xc8, 0xb1, 0x02, 0xd7, 0x3f, 0x19,
0xb2, 0xc4, 0x6d, 0xb4, 0x54, 0xf8, 0x8b, 0x8a, 0xcc, 0xdb, 0x72, 0xc2, 0x9e,
0x3c, 0x60, 0xb9, 0xc6, 0x91, 0x3d, 0x82, 0xb7, 0x7d, 0x99, 0xff, 0xd1, 0x29,
0x84, 0xc1, 0x73, 0x53, 0x9c, 0x82, 0xdd, 0xfc, 0x24, 0x8c, 0x77, 0xd5, 0x41,
0xf3, 0xe8, 0x1e, 0x42, 0xa1, 0xad, 0x2d, 0x9e, 0xff, 0x5b, 0x10, 0x26, 0xce,
0x9d, 0x57, 0x17, 0x73, 0x16, 0x23, 0x38, 0xc8, 0xd6, 0xf1, 0xba, 0xa3, 0x96,
0x5b, 0x16, 0x67, 0x4a, 0x4f, 0x73, 0x97, 0x3a, 0x4d, 0x14, 0xa4, 0xf4, 0xe2,
0x3f, 0x8b, 0x05, 0x83, 0x42, 0xd1, 0xd0, 0xdc, 0x2f, 0x7a, 0xe5, 0xb6, 0x10,
0xb2, 0x11, 0xc0, 0xdc, 0x21, 0x2a, 0x90, 0xff, 0xae, 0x97, 0x71, 0x5a, 0x49,
0x81, 0xac, 0x40, 0xf3, 0x3b, 0xb8, 0x59, 0xb2, 0x4f, 0x02, 0x03, 0x01, 0x00,
0x01, 0xa3, 0x82, 0x03, 0x21, 0x30, 0x82, 0x03, 0x1d, 0x30, 0x09, 0x06, 0x03,
0x55, 0x1d, 0x13, 0x04, 0x02, 0x30, 0x00, 0x30, 0x11, 0x06, 0x09, 0x60, 0x86,
0x48, 0x01, 0x86, 0xf8, 0x42, 0x01, 0x01, 0x04, 0x04, 0x03, 0x02, 0x06, 0x40,
0x30, 0x0b, 0x06, 0x03, 0x55, 0x1d, 0x0f, 0x04, 0x04, 0x03, 0x02, 0x03, 0xf8,
0x30, 0x13, 0x06, 0x03, 0x55, 0x1d, 0x25, 0x04, 0x0c, 0x30, 0x0a, 0x06, 0x08,
0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x03, 0x01, 0x30, 0x1d, 0x06, 0x03, 0x55,
0x1d, 0x0e, 0x04, 0x16, 0x04, 0x14, 0x61, 0x8f, 0x61, 0x34, 0x43, 0x55, 0x14,
0x7f, 0x27, 0x09, 0xce, 0x4c, 0x8b, 0xea, 0x9b, 0x7b, 0x19, 0x25, 0xbc, 0x6e,
0x30, 0x1f, 0x06, 0x03, 0x55, 0x1d, 0x23, 0x04, 0x18, 0x30, 0x16, 0x80, 0x14,
0x0e, 0x07, 0x60, 0xd4, 0x39, 0xc9, 0x1b, 0x5b, 0x5d, 0x90, 0x7b, 0x23, 0xc8,
0xd2, 0x34, 0x9d, 0x4a, 0x9a, 0x46, 0x39, 0x30, 0x09, 0x06, 0x03, 0x55, 0x1d,
0x11, 0x04, 0x02, 0x30, 0x00, 0x30, 0x1c, 0x06, 0x03, 0x55, 0x1d, 0x12, 0x04,
0x15, 0x30, 0x13, 0x81, 0x11, 0x67, 0x65, 0x6e, 0x65, 0x72, 0x61, 0x6c, 0x40,
0x69, 0x70, 0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x30, 0x72, 0x06, 0x09,
0x60, 0x86, 0x48, 0x01, 0x86, 0xf8, 0x42, 0x01, 0x0d, 0x04, 0x65, 0x16, 0x63,
0x4f, 0x72, 0x67, 0x61, 0x6e, 0x69, 0x7a, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20,
0x49, 0x6e, 0x66, 0x6f, 0x72, 0x6d, 0x61, 0x74, 0x69, 0x6f, 0x6e, 0x20, 0x4e,
0x4f, 0x54, 0x20, 0x56, 0x41, 0x4c, 0x49, 0x44, 0x41, 0x54, 0x45, 0x44, 0x2e,
0x20, 0x43, 0x4c, 0x41, 0x53, 0x45, 0x41, 0x31, 0x20, 0x53, 0x65, 0x72, 0x76,
0x65, 0x72, 0x20, 0x43, 0x65, 0x72, 0x74, 0x69, 0x66, 0x69, 0x63, 0x61, 0x74,
0x65, 0x20, 0x69, 0x73, 0x73, 0x75, 0x65, 0x64, 0x20, 0x62, 0x79, 0x20, 0x68,
0x74, 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x69, 0x70,
0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x30, 0x2f, 0x06, 0x09, 0x60,
0x86, 0x48, 0x01, 0x86, 0xf8, 0x42, 0x01, 0x02, 0x04, 0x22, 0x16, 0x20, 0x68,
0x74, 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x69, 0x70,
0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61,
0x32, 0x30, 0x30, 0x32, 0x2f, 0x30, 0x43, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01,
0x86, 0xf8, 0x42, 0x01, 0x04, 0x04, 0x36, 0x16, 0x34, 0x68, 0x74, 0x74, 0x70,
0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x69, 0x70, 0x73, 0x63, 0x61,
0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61, 0x32, 0x30, 0x30,
0x32, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61, 0x32, 0x30, 0x30, 0x32, 0x43, 0x4c,
0x41, 0x53, 0x45, 0x41, 0x31, 0x2e, 0x63, 0x72, 0x6c, 0x30, 0x46, 0x06, 0x09,
0x60, 0x86, 0x48, 0x01, 0x86, 0xf8, 0x42, 0x01, 0x03, 0x04, 0x39, 0x16, 0x37,
0x68, 0x74, 0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x69,
0x70, 0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x70, 0x73, 0x63,
0x61, 0x32, 0x30, 0x30, 0x32, 0x2f, 0x72, 0x65, 0x76, 0x6f, 0x63, 0x61, 0x74,
0x69, 0x6f, 0x6e, 0x43, 0x4c, 0x41, 0x53, 0x45, 0x41, 0x31, 0x2e, 0x68, 0x74,
0x6d, 0x6c, 0x3f, 0x30, 0x43, 0x06, 0x09, 0x60, 0x86, 0x48, 0x01, 0x86, 0xf8,
0x42, 0x01, 0x07, 0x04, 0x36, 0x16, 0x34, 0x68, 0x74, 0x74, 0x70, 0x73, 0x3a,
0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x69, 0x70, 0x73, 0x63, 0x61, 0x2e, 0x63,
0x6f, 0x6d, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61, 0x32, 0x30, 0x30, 0x32, 0x2f,
0x72, 0x65, 0x6e, 0x65, 0x77, 0x61, 0x6c, 0x43, 0x4c, 0x41, 0x53, 0x45, 0x41,
0x31, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x3f, 0x30, 0x41, 0x06, 0x09, 0x60, 0x86,
0x48, 0x01, 0x86, 0xf8, 0x42, 0x01, 0x08, 0x04, 0x34, 0x16, 0x32, 0x68, 0x74,
0x74, 0x70, 0x73, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x2e, 0x69, 0x70, 0x73,
0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61, 0x32,
0x30, 0x30, 0x32, 0x2f, 0x70, 0x6f, 0x6c, 0x69, 0x63, 0x79, 0x43, 0x4c, 0x41,
0x53, 0x45, 0x41, 0x31, 0x2e, 0x68, 0x74, 0x6d, 0x6c, 0x30, 0x81, 0x83, 0x06,
0x03, 0x55, 0x1d, 0x1f, 0x04, 0x7c, 0x30, 0x7a, 0x30, 0x39, 0xa0, 0x37, 0xa0,
0x35, 0x86, 0x33, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77,
0x2e, 0x69, 0x70, 0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x70,
0x73, 0x63, 0x61, 0x32, 0x30, 0x30, 0x32, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61,
0x32, 0x30, 0x30, 0x32, 0x43, 0x4c, 0x41, 0x53, 0x45, 0x41, 0x31, 0x2e, 0x63,
0x72, 0x6c, 0x30, 0x3d, 0xa0, 0x3b, 0xa0, 0x39, 0x86, 0x37, 0x68, 0x74, 0x74,
0x70, 0x3a, 0x2f, 0x2f, 0x77, 0x77, 0x77, 0x62, 0x61, 0x63, 0x6b, 0x2e, 0x69,
0x70, 0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x69, 0x70, 0x73, 0x63,
0x61, 0x32, 0x30, 0x30, 0x32, 0x2f, 0x69, 0x70, 0x73, 0x63, 0x61, 0x32, 0x30,
0x30, 0x32, 0x43, 0x4c, 0x41, 0x53, 0x45, 0x41, 0x31, 0x2e, 0x63, 0x72, 0x6c,
0x30, 0x32, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07, 0x01, 0x01, 0x04,
0x26, 0x30, 0x24, 0x30, 0x22, 0x06, 0x08, 0x2b, 0x06, 0x01, 0x05, 0x05, 0x07,
0x30, 0x01, 0x86, 0x16, 0x68, 0x74, 0x74, 0x70, 0x3a, 0x2f, 0x2f, 0x6f, 0x63,
0x73, 0x70, 0x2e, 0x69, 0x70, 0x73, 0x63, 0x61, 0x2e, 0x63, 0x6f, 0x6d, 0x2f,
0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x05,
0x05, 0x00, 0x03, 0x81, 0x81, 0x00, 0x68, 0xee, 0x79, 0x97, 0x97, 0xdd, 0x3b,
0xef, 0x16, 0x6a, 0x06, 0xf2, 0x14, 0x9a, 0x6e, 0xcd, 0x9e, 0x12, 0xf7, 0xaa,
0x83, 0x10, 0xbd, 0xd1, 0x7c, 0x98, 0xfa, 0xc7, 0xae, 0xd4, 0x0e, 0x2c, 0x9e,
0x38, 0x05, 0x9d, 0x52, 0x60, 0xa9, 0x99, 0x0a, 0x81, 0xb4, 0x98, 0x90, 0x1d,
0xae, 0xbb, 0x4a, 0xd7, 0xb9, 0xdc, 0x88, 0x9e, 0x37, 0x78, 0x41, 0x5b, 0xf7,
0x82, 0xa5, 0xf2, 0xba, 0x41, 0x25, 0x5a, 0x90, 0x1a, 0x1e, 0x45, 0x38, 0xa1,
0x52, 0x58, 0x75, 0x94, 0x26, 0x44, 0xfb, 0x20, 0x07, 0xba, 0x44, 0xcc, 0xe5,
0x4a, 0x2d, 0x72, 0x3f, 0x98, 0x47, 0xf6, 0x26, 0xdc, 0x05, 0x46, 0x05, 0x07,
0x63, 0x21, 0xab, 0x46, 0x9b, 0x9c, 0x78, 0xd5, 0x54, 0x5b, 0x3d, 0x0c, 0x1e,
0xc8, 0x64, 0x8c, 0xb5, 0x50, 0x23, 0x82, 0x6f, 0xdb, 0xb8, 0x22, 0x1c, 0x43,
0x96, 0x07, 0xa8, 0xbb,
}

163
ct/asn1/common.go
View File

@ -1,163 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package asn1
import (
"reflect"
"strconv"
"strings"
)
// ASN.1 objects have metadata preceding them:
// the tag: the type of the object
// a flag denoting if this object is compound or not
// the class type: the namespace of the tag
// the length of the object, in bytes
// Here are some standard tags and classes
const (
tagBoolean = 1
tagInteger = 2
tagBitString = 3
tagOctetString = 4
tagOID = 6
tagEnum = 10
tagUTF8String = 12
tagSequence = 16
tagSet = 17
tagPrintableString = 19
tagT61String = 20
tagIA5String = 22
tagUTCTime = 23
tagGeneralizedTime = 24
tagGeneralString = 27
)
const (
classUniversal = 0
classApplication = 1
classContextSpecific = 2
classPrivate = 3
)
type tagAndLength struct {
class, tag, length int
isCompound bool
}
// ASN.1 has IMPLICIT and EXPLICIT tags, which can be translated as "instead
// of" and "in addition to". When not specified, every primitive type has a
// default tag in the UNIVERSAL class.
//
// For example: a BIT STRING is tagged [UNIVERSAL 3] by default (although ASN.1
// doesn't actually have a UNIVERSAL keyword). However, by saying [IMPLICIT
// CONTEXT-SPECIFIC 42], that means that the tag is replaced by another.
//
// On the other hand, if it said [EXPLICIT CONTEXT-SPECIFIC 10], then an
// /additional/ tag would wrap the default tag. This explicit tag will have the
// compound flag set.
//
// (This is used in order to remove ambiguity with optional elements.)
//
// You can layer EXPLICIT and IMPLICIT tags to an arbitrary depth, however we
// don't support that here. We support a single layer of EXPLICIT or IMPLICIT
// tagging with tag strings on the fields of a structure.
// fieldParameters is the parsed representation of tag string from a structure field.
type fieldParameters struct {
optional bool // true iff the field is OPTIONAL
explicit bool // true iff an EXPLICIT tag is in use.
application bool // true iff an APPLICATION tag is in use.
defaultValue *int64 // a default value for INTEGER typed fields (maybe nil).
tag *int // the EXPLICIT or IMPLICIT tag (maybe nil).
stringType int // the string tag to use when marshaling.
set bool // true iff this should be encoded as a SET
omitEmpty bool // true iff this should be omitted if empty when marshaling.
// Invariants:
// if explicit is set, tag is non-nil.
}
// Given a tag string with the format specified in the package comment,
// parseFieldParameters will parse it into a fieldParameters structure,
// ignoring unknown parts of the string.
func parseFieldParameters(str string) (ret fieldParameters) {
for _, part := range strings.Split(str, ",") {
switch {
case part == "optional":
ret.optional = true
case part == "explicit":
ret.explicit = true
if ret.tag == nil {
ret.tag = new(int)
}
case part == "ia5":
ret.stringType = tagIA5String
case part == "printable":
ret.stringType = tagPrintableString
case part == "utf8":
ret.stringType = tagUTF8String
case strings.HasPrefix(part, "default:"):
i, err := strconv.ParseInt(part[8:], 10, 64)
if err == nil {
ret.defaultValue = new(int64)
*ret.defaultValue = i
}
case strings.HasPrefix(part, "tag:"):
i, err := strconv.Atoi(part[4:])
if err == nil {
ret.tag = new(int)
*ret.tag = i
}
case part == "set":
ret.set = true
case part == "application":
ret.application = true
if ret.tag == nil {
ret.tag = new(int)
}
case part == "omitempty":
ret.omitEmpty = true
}
}
return
}
// Given a reflected Go type, getUniversalType returns the default tag number
// and expected compound flag.
func getUniversalType(t reflect.Type) (tagNumber int, isCompound, ok bool) {
switch t {
case objectIdentifierType:
return tagOID, false, true
case bitStringType:
return tagBitString, false, true
case timeType:
return tagUTCTime, false, true
case enumeratedType:
return tagEnum, false, true
case bigIntType:
return tagInteger, false, true
}
switch t.Kind() {
case reflect.Bool:
return tagBoolean, false, true
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return tagInteger, false, true
case reflect.Struct:
return tagSequence, true, true
case reflect.Slice:
if t.Elem().Kind() == reflect.Uint8 {
return tagOctetString, false, true
}
if strings.HasSuffix(t.Name(), "SET") {
return tagSet, true, true
}
return tagSequence, true, true
case reflect.String:
return tagPrintableString, false, true
}
return 0, false, false
}

581
ct/asn1/marshal.go
View File

@ -1,581 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package asn1
import (
"bytes"
"errors"
"fmt"
"io"
"math/big"
"reflect"
"time"
"unicode/utf8"
)
// A forkableWriter is an in-memory buffer that can be
// 'forked' to create new forkableWriters that bracket the
// original. After
// pre, post := w.fork();
// the overall sequence of bytes represented is logically w+pre+post.
type forkableWriter struct {
*bytes.Buffer
pre, post *forkableWriter
}
func newForkableWriter() *forkableWriter {
return &forkableWriter{new(bytes.Buffer), nil, nil}
}
func (f *forkableWriter) fork() (pre, post *forkableWriter) {
if f.pre != nil || f.post != nil {
panic("have already forked")
}
f.pre = newForkableWriter()
f.post = newForkableWriter()
return f.pre, f.post
}
func (f *forkableWriter) Len() (l int) {
l += f.Buffer.Len()
if f.pre != nil {
l += f.pre.Len()
}
if f.post != nil {
l += f.post.Len()
}
return
}
func (f *forkableWriter) writeTo(out io.Writer) (n int, err error) {
n, err = out.Write(f.Bytes())
if err != nil {
return
}
var nn int
if f.pre != nil {
nn, err = f.pre.writeTo(out)
n += nn
if err != nil {
return
}
}
if f.post != nil {
nn, err = f.post.writeTo(out)
n += nn
}
return
}
func marshalBase128Int(out *forkableWriter, n int64) (err error) {
if n == 0 {
err = out.WriteByte(0)
return
}
l := 0
for i := n; i > 0; i >>= 7 {
l++
}
for i := l - 1; i >= 0; i-- {
o := byte(n >> uint(i*7))
o &= 0x7f
if i != 0 {
o |= 0x80
}
err = out.WriteByte(o)
if err != nil {
return
}
}
return nil
}
func marshalInt64(out *forkableWriter, i int64) (err error) {
n := int64Length(i)
for ; n > 0; n-- {
err = out.WriteByte(byte(i >> uint((n-1)*8)))
if err != nil {
return
}
}
return nil
}
func int64Length(i int64) (numBytes int) {
numBytes = 1
for i > 127 {
numBytes++
i >>= 8
}
for i < -128 {
numBytes++
i >>= 8
}
return
}
func marshalBigInt(out *forkableWriter, n *big.Int) (err error) {
if n.Sign() < 0 {
// A negative number has to be converted to two's-complement
// form. So we'll subtract 1 and invert. If the
// most-significant-bit isn't set then we'll need to pad the
// beginning with 0xff in order to keep the number negative.
nMinus1 := new(big.Int).Neg(n)
nMinus1.Sub(nMinus1, bigOne)
bytes := nMinus1.Bytes()
for i := range bytes {
bytes[i] ^= 0xff
}
if len(bytes) == 0 || bytes[0]&0x80 == 0 {
err = out.WriteByte(0xff)
if err != nil {
return
}
}
_, err = out.Write(bytes)
} else if n.Sign() == 0 {
// Zero is written as a single 0 zero rather than no bytes.
err = out.WriteByte(0x00)
} else {
bytes := n.Bytes()
if len(bytes) > 0 && bytes[0]&0x80 != 0 {
// We'll have to pad this with 0x00 in order to stop it
// looking like a negative number.
err = out.WriteByte(0)
if err != nil {
return
}
}
_, err = out.Write(bytes)
}
return
}
func marshalLength(out *forkableWriter, i int) (err error) {
n := lengthLength(i)
for ; n > 0; n-- {
err = out.WriteByte(byte(i >> uint((n-1)*8)))
if err != nil {
return
}
}
return nil
}
func lengthLength(i int) (numBytes int) {
numBytes = 1
for i > 255 {
numBytes++
i >>= 8
}
return
}
func marshalTagAndLength(out *forkableWriter, t tagAndLength) (err error) {
b := uint8(t.class) << 6
if t.isCompound {
b |= 0x20
}
if t.tag >= 31 {
b |= 0x1f
err = out.WriteByte(b)
if err != nil {
return
}
err = marshalBase128Int(out, int64(t.tag))
if err != nil {
return
}
} else {
b |= uint8(t.tag)
err = out.WriteByte(b)
if err != nil {
return
}
}
if t.length >= 128 {
l := lengthLength(t.length)
err = out.WriteByte(0x80 | byte(l))
if err != nil {
return
}
err = marshalLength(out, t.length)
if err != nil {
return
}
} else {
err = out.WriteByte(byte(t.length))
if err != nil {
return
}
}
return nil
}
func marshalBitString(out *forkableWriter, b BitString) (err error) {
paddingBits := byte((8 - b.BitLength%8) % 8)
err = out.WriteByte(paddingBits)
if err != nil {
return
}
_, err = out.Write(b.Bytes)
return
}
func marshalObjectIdentifier(out *forkableWriter, oid []int) (err error) {
if len(oid) < 2 || oid[0] > 2 || (oid[0] < 2 && oid[1] >= 40) {
return StructuralError{"invalid object identifier"}
}
err = marshalBase128Int(out, int64(oid[0]*40+oid[1]))
if err != nil {
return
}
for i := 2; i < len(oid); i++ {
err = marshalBase128Int(out, int64(oid[i]))
if err != nil {
return
}
}
return
}
func marshalPrintableString(out *forkableWriter, s string) (err error) {
b := []byte(s)
for _, c := range b {
if !isPrintable(c) {
return StructuralError{"PrintableString contains invalid character"}
}
}
_, err = out.Write(b)
return
}
func marshalIA5String(out *forkableWriter, s string) (err error) {
b := []byte(s)
for _, c := range b {
if c > 127 {
return StructuralError{"IA5String contains invalid character"}
}
}
_, err = out.Write(b)
return
}
func marshalUTF8String(out *forkableWriter, s string) (err error) {
_, err = out.Write([]byte(s))
return
}
func marshalTwoDigits(out *forkableWriter, v int) (err error) {
err = out.WriteByte(byte('0' + (v/10)%10))
if err != nil {
return
}
return out.WriteByte(byte('0' + v%10))
}
func marshalUTCTime(out *forkableWriter, t time.Time) (err error) {
year, month, day := t.Date()
switch {
case 1950 <= year && year < 2000:
err = marshalTwoDigits(out, int(year-1900))
case 2000 <= year && year < 2050:
err = marshalTwoDigits(out, int(year-2000))
default:
return StructuralError{"cannot represent time as UTCTime"}
}
if err != nil {
return
}
err = marshalTwoDigits(out, int(month))
if err != nil {
return
}
err = marshalTwoDigits(out, day)
if err != nil {
return
}
hour, min, sec := t.Clock()
err = marshalTwoDigits(out, hour)
if err != nil {
return
}
err = marshalTwoDigits(out, min)
if err != nil {
return
}
err = marshalTwoDigits(out, sec)
if err != nil {
return
}
_, offset := t.Zone()
switch {
case offset/60 == 0:
err = out.WriteByte('Z')
return
case offset > 0:
err = out.WriteByte('+')
case offset < 0:
err = out.WriteByte('-')
}
if err != nil {
return
}
offsetMinutes := offset / 60
if offsetMinutes < 0 {
offsetMinutes = -offsetMinutes
}
err = marshalTwoDigits(out, offsetMinutes/60)
if err != nil {
return
}
err = marshalTwoDigits(out, offsetMinutes%60)
return
}
func stripTagAndLength(in []byte) []byte {
_, offset, err := parseTagAndLength(in, 0)
if err != nil {
return in
}
return in[offset:]
}
func marshalBody(out *forkableWriter, value reflect.Value, params fieldParameters) (err error) {
switch value.Type() {
case timeType:
return marshalUTCTime(out, value.Interface().(time.Time))
case bitStringType:
return marshalBitString(out, value.Interface().(BitString))
case objectIdentifierType:
return marshalObjectIdentifier(out, value.Interface().(ObjectIdentifier))
case bigIntType:
return marshalBigInt(out, value.Interface().(*big.Int))
}
switch v := value; v.Kind() {
case reflect.Bool:
if v.Bool() {
return out.WriteByte(255)
} else {
return out.WriteByte(0)
}
case reflect.Int, reflect.Int8, reflect.Int16, reflect.Int32, reflect.Int64:
return marshalInt64(out, int64(v.Int()))
case reflect.Struct:
t := v.Type()
startingField := 0
// If the first element of the structure is a non-empty
// RawContents, then we don't bother serializing the rest.
if t.NumField() > 0 && t.Field(0).Type == rawContentsType {
s := v.Field(0)
if s.Len() > 0 {
bytes := make([]byte, s.Len())
for i := 0; i < s.Len(); i++ {
bytes[i] = uint8(s.Index(i).Uint())
}
/* The RawContents will contain the tag and
* length fields but we'll also be writing
* those ourselves, so we strip them out of
* bytes */
_, err = out.Write(stripTagAndLength(bytes))
return
} else {
startingField = 1
}
}
for i := startingField; i < t.NumField(); i++ {
var pre *forkableWriter
pre, out = out.fork()
err = marshalField(pre, v.Field(i), parseFieldParameters(t.Field(i).Tag.Get("asn1")))
if err != nil {
return
}
}
return
case reflect.Slice:
sliceType := v.Type()
if sliceType.Elem().Kind() == reflect.Uint8 {
bytes := make([]byte, v.Len())
for i := 0; i < v.Len(); i++ {
bytes[i] = uint8(v.Index(i).Uint())
}
_, err = out.Write(bytes)
return
}
var fp fieldParameters
for i := 0; i < v.Len(); i++ {
var pre *forkableWriter
pre, out = out.fork()
err = marshalField(pre, v.Index(i), fp)
if err != nil {
return
}
}
return
case reflect.String:
switch params.stringType {
case tagIA5String:
return marshalIA5String(out, v.String())
case tagPrintableString:
return marshalPrintableString(out, v.String())
default:
return marshalUTF8String(out, v.String())
}
}
return StructuralError{"unknown Go type"}
}
func marshalField(out *forkableWriter, v reflect.Value, params fieldParameters) (err error) {
// If the field is an interface{} then recurse into it.
if v.Kind() == reflect.Interface && v.Type().NumMethod() == 0 {
return marshalField(out, v.Elem(), params)
}
if v.Kind() == reflect.Slice && v.Len() == 0 && params.omitEmpty {
return
}
if params.optional && reflect.DeepEqual(v.Interface(), reflect.Zero(v.Type()).Interface()) {
return
}
if v.Type() == rawValueType {
rv := v.Interface().(RawValue)
if len(rv.FullBytes) != 0 {
_, err = out.Write(rv.FullBytes)
} else {
err = marshalTagAndLength(out, tagAndLength{rv.Class, rv.Tag, len(rv.Bytes), rv.IsCompound})
if err != nil {
return
}
_, err = out.Write(rv.Bytes)
}
return
}
tag, isCompound, ok := getUniversalType(v.Type())
if !ok {
err = StructuralError{fmt.Sprintf("unknown Go type: %v", v.Type())}
return
}
class := classUniversal
if params.stringType != 0 && tag != tagPrintableString {
return StructuralError{"explicit string type given to non-string member"}
}
if tag == tagPrintableString {
if params.stringType == 0 {
// This is a string without an explicit string type. We'll use
// a PrintableString if the character set in the string is
// sufficiently limited, otherwise we'll use a UTF8String.
for _, r := range v.String() {
if r >= utf8.RuneSelf || !isPrintable(byte(r)) {
if !utf8.ValidString(v.String()) {
return errors.New("asn1: string not valid UTF-8")
}
tag = tagUTF8String
break
}
}
} else {
tag = params.stringType
}
}
if params.set {
if tag != tagSequence {
return StructuralError{"non sequence tagged as set"}
}
tag = tagSet
}
tags, body := out.fork()
err = marshalBody(body, v, params)
if err != nil {
return
}
bodyLen := body.Len()
var explicitTag *forkableWriter
if params.explicit {
explicitTag, tags = tags.fork()
}
if !params.explicit && params.tag != nil {
// implicit tag.
tag = *params.tag
class = classContextSpecific
}
err = marshalTagAndLength(tags, tagAndLength{class, tag, bodyLen, isCompound})
if err != nil {
return
}
if params.explicit {
err = marshalTagAndLength(explicitTag, tagAndLength{
class: classContextSpecific,
tag: *params.tag,
length: bodyLen + tags.Len(),
isCompound: true,
})
}
return nil
}
// Marshal returns the ASN.1 encoding of val.
func Marshal(val interface{}) ([]byte, error) {
var out bytes.Buffer
v := reflect.ValueOf(val)
f := newForkableWriter()
err := marshalField(f, v, fieldParameters{})
if err != nil {
return nil, err
}
_, err = f.writeTo(&out)
return out.Bytes(), nil
}

148
ct/asn1/marshal_test.go
View File

@ -1,148 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package asn1
import (
"bytes"
"encoding/hex"
"math/big"
"testing"
"time"
)
type intStruct struct {
A int
}
type twoIntStruct struct {
A int
B int
}
type bigIntStruct struct {
A *big.Int
}
type nestedStruct struct {
A intStruct
}
type rawContentsStruct struct {
Raw RawContent
A int
}
type implicitTagTest struct {
A int `asn1:"implicit,tag:5"`
}
type explicitTagTest struct {
A int `asn1:"explicit,tag:5"`
}
type ia5StringTest struct {
A string `asn1:"ia5"`
}
type printableStringTest struct {
A string `asn1:"printable"`
}
type optionalRawValueTest struct {
A RawValue `asn1:"optional"`
}
type omitEmptyTest struct {
A []string `asn1:"omitempty"`
}
type testSET []int
var PST = time.FixedZone("PST", -8*60*60)
type marshalTest struct {
in interface{}
out string // hex encoded
}
var marshalTests = []marshalTest{
{10, "02010a"},
{127, "02017f"},
{128, "02020080"},
{-128, "020180"},
{-129, "0202ff7f"},
{intStruct{64}, "3003020140"},
{bigIntStruct{big.NewInt(0x123456)}, "30050203123456"},
{twoIntStruct{64, 65}, "3006020140020141"},
{nestedStruct{intStruct{127}}, "3005300302017f"},
{[]byte{1, 2, 3}, "0403010203"},
{implicitTagTest{64}, "3003850140"},
{explicitTagTest{64}, "3005a503020140"},
{time.Unix(0, 0).UTC(), "170d3730303130313030303030305a"},
{time.Unix(1258325776, 0).UTC(), "170d3039313131353232353631365a"},
{time.Unix(1258325776, 0).In(PST), "17113039313131353134353631362d30383030"},
{BitString{[]byte{0x80}, 1}, "03020780"},
{BitString{[]byte{0x81, 0xf0}, 12}, "03030481f0"},
{ObjectIdentifier([]int{1, 2, 3, 4}), "06032a0304"},
{ObjectIdentifier([]int{1, 2, 840, 133549, 1, 1, 5}), "06092a864888932d010105"},
{ObjectIdentifier([]int{2, 100, 3}), "0603813403"},
{"test", "130474657374"},
{
"" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", // This is 127 times 'x'
"137f" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"78787878787878787878787878787878787878787878787878787878787878",
},
{
"" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx" +
"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx", // This is 128 times 'x'
"138180" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878" +
"7878787878787878787878787878787878787878787878787878787878787878",
},
{ia5StringTest{"test"}, "3006160474657374"},
{optionalRawValueTest{}, "3000"},
{printableStringTest{"test"}, "3006130474657374"},
{printableStringTest{"test*"}, "30071305746573742a"},
{rawContentsStruct{nil, 64}, "3003020140"},
{rawContentsStruct{[]byte{0x30, 3, 1, 2, 3}, 64}, "3003010203"},
{RawValue{Tag: 1, Class: 2, IsCompound: false, Bytes: []byte{1, 2, 3}}, "8103010203"},
{testSET([]int{10}), "310302010a"},
{omitEmptyTest{[]string{}}, "3000"},
{omitEmptyTest{[]string{"1"}}, "30053003130131"},
{"Σ", "0c02cea3"},
}
func TestMarshal(t *testing.T) {
for i, test := range marshalTests {
data, err := Marshal(test.in)
if err != nil {
t.Errorf("#%d failed: %s", i, err)
}
out, _ := hex.DecodeString(test.out)
if !bytes.Equal(out, data) {
t.Errorf("#%d got: %x want %x\n\t%q\n\t%q", i, data, out, data, out)
}
}
}
func TestInvalidUTF8(t *testing.T) {
_, err := Marshal(string([]byte{0xff, 0xff}))
if err == nil {
t.Errorf("invalid UTF8 string was accepted")
}
}

116
ct/x509/cert_pool.go
View File

@ -1,116 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"encoding/pem"
)
// CertPool is a set of certificates.
type CertPool struct {
bySubjectKeyId map[string][]int
byName map[string][]int
certs []*Certificate
}
// NewCertPool returns a new, empty CertPool.
func NewCertPool() *CertPool {
return &CertPool{
make(map[string][]int),
make(map[string][]int),
nil,
}
}
// findVerifiedParents attempts to find certificates in s which have signed the
// given certificate. If any candidates were rejected then errCert will be set
// to one of them, arbitrarily, and err will contain the reason that it was
// rejected.
func (s *CertPool) findVerifiedParents(cert *Certificate) (parents []int, errCert *Certificate, err error) {
if s == nil {
return
}
var candidates []int
if len(cert.AuthorityKeyId) > 0 {
candidates = s.bySubjectKeyId[string(cert.AuthorityKeyId)]
}
if len(candidates) == 0 {
candidates = s.byName[string(cert.RawIssuer)]
}
for _, c := range candidates {
if err = cert.CheckSignatureFrom(s.certs[c]); err == nil {
parents = append(parents, c)
} else {
errCert = s.certs[c]
}
}
return
}
// AddCert adds a certificate to a pool.
func (s *CertPool) AddCert(cert *Certificate) {
if cert == nil {
panic("adding nil Certificate to CertPool")
}
// Check that the certificate isn't being added twice.
for _, c := range s.certs {
if c.Equal(cert) {
return
}
}
n := len(s.certs)
s.certs = append(s.certs, cert)
if len(cert.SubjectKeyId) > 0 {
keyId := string(cert.SubjectKeyId)
s.bySubjectKeyId[keyId] = append(s.bySubjectKeyId[keyId], n)
}
name := string(cert.RawSubject)
s.byName[name] = append(s.byName[name], n)
}
// AppendCertsFromPEM attempts to parse a series of PEM encoded certificates.
// It appends any certificates found to s and returns true if any certificates
// were successfully parsed.
//
// On many Linux systems, /etc/ssl/cert.pem will contain the system wide set
// of root CAs in a format suitable for this function.
func (s *CertPool) AppendCertsFromPEM(pemCerts []byte) (ok bool) {
for len(pemCerts) > 0 {
var block *pem.Block
block, pemCerts = pem.Decode(pemCerts)
if block == nil {
break
}
if block.Type != "CERTIFICATE" || len(block.Headers) != 0 {
continue
}
cert, err := ParseCertificate(block.Bytes)
if err != nil {
continue
}
s.AddCert(cert)
ok = true
}
return
}
// Subjects returns a list of the DER-encoded subjects of
// all of the certificates in the pool.
func (s *CertPool) Subjects() (res [][]byte) {
res = make([][]byte, len(s.certs))
for i, c := range s.certs {
res[i] = c.RawSubject
}
return
}

233
ct/x509/pem_decrypt.go
View File

@ -1,233 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
// RFC 1423 describes the encryption of PEM blocks. The algorithm used to
// generate a key from the password was derived by looking at the OpenSSL
// implementation.
import (
"crypto/aes"
"crypto/cipher"
"crypto/des"
"crypto/md5"
"encoding/hex"
"encoding/pem"
"errors"
"io"
"strings"
)
type PEMCipher int
// Possible values for the EncryptPEMBlock encryption algorithm.
const (
_ PEMCipher = iota
PEMCipherDES
PEMCipher3DES
PEMCipherAES128
PEMCipherAES192
PEMCipherAES256
)
// rfc1423Algo holds a method for enciphering a PEM block.
type rfc1423Algo struct {
cipher PEMCipher
name string
cipherFunc func(key []byte) (cipher.Block, error)
keySize int
blockSize int
}
// rfc1423Algos holds a slice of the possible ways to encrypt a PEM
// block. The ivSize numbers were taken from the OpenSSL source.
var rfc1423Algos = []rfc1423Algo{{
cipher: PEMCipherDES,
name: "DES-CBC",
cipherFunc: des.NewCipher,
keySize: 8,
blockSize: des.BlockSize,
}, {
cipher: PEMCipher3DES,
name: "DES-EDE3-CBC",
cipherFunc: des.NewTripleDESCipher,
keySize: 24,
blockSize: des.BlockSize,
}, {
cipher: PEMCipherAES128,
name: "AES-128-CBC",
cipherFunc: aes.NewCipher,
keySize: 16,
blockSize: aes.BlockSize,
}, {
cipher: PEMCipherAES192,
name: "AES-192-CBC",
cipherFunc: aes.NewCipher,
keySize: 24,
blockSize: aes.BlockSize,
}, {
cipher: PEMCipherAES256,
name: "AES-256-CBC",
cipherFunc: aes.NewCipher,
keySize: 32,
blockSize: aes.BlockSize,
},
}
// deriveKey uses a key derivation function to stretch the password into a key
// with the number of bits our cipher requires. This algorithm was derived from
// the OpenSSL source.
func (c rfc1423Algo) deriveKey(password, salt []byte) []byte {
hash := md5.New()
out := make([]byte, c.keySize)
var digest []byte
for i := 0; i < len(out); i += len(digest) {
hash.Reset()
hash.Write(digest)
hash.Write(password)
hash.Write(salt)
digest = hash.Sum(digest[:0])
copy(out[i:], digest)
}
return out
}
// IsEncryptedPEMBlock returns if the PEM block is password encrypted.
func IsEncryptedPEMBlock(b *pem.Block) bool {
_, ok := b.Headers["DEK-Info"]
return ok
}
// IncorrectPasswordError is returned when an incorrect password is detected.
var IncorrectPasswordError = errors.New("x509: decryption password incorrect")
// DecryptPEMBlock takes a password encrypted PEM block and the password used to
// encrypt it and returns a slice of decrypted DER encoded bytes. It inspects
// the DEK-Info header to determine the algorithm used for decryption. If no
// DEK-Info header is present, an error is returned. If an incorrect password
// is detected an IncorrectPasswordError is returned.
func DecryptPEMBlock(b *pem.Block, password []byte) ([]byte, error) {
dek, ok := b.Headers["DEK-Info"]
if !ok {
return nil, errors.New("x509: no DEK-Info header in block")
}
idx := strings.Index(dek, ",")
if idx == -1 {
return nil, errors.New("x509: malformed DEK-Info header")
}
mode, hexIV := dek[:idx], dek[idx+1:]
ciph := cipherByName(mode)
if ciph == nil {
return nil, errors.New("x509: unknown encryption mode")
}
iv, err := hex.DecodeString(hexIV)
if err != nil {
return nil, err
}
if len(iv) != ciph.blockSize {
return nil, errors.New("x509: incorrect IV size")
}
// Based on the OpenSSL implementation. The salt is the first 8 bytes
// of the initialization vector.
key := ciph.deriveKey(password, iv[:8])
block, err := ciph.cipherFunc(key)
if err != nil {
return nil, err
}
data := make([]byte, len(b.Bytes))
dec := cipher.NewCBCDecrypter(block, iv)
dec.CryptBlocks(data, b.Bytes)
// Blocks are padded using a scheme where the last n bytes of padding are all
// equal to n. It can pad from 1 to blocksize bytes inclusive. See RFC 1423.
// For example:
// [x y z 2 2]
// [x y 7 7 7 7 7 7 7]
// If we detect a bad padding, we assume it is an invalid password.
dlen := len(data)
if dlen == 0 || dlen%ciph.blockSize != 0 {
return nil, errors.New("x509: invalid padding")
}
last := int(data[dlen-1])
if dlen < last {
return nil, IncorrectPasswordError
}
if last == 0 || last > ciph.blockSize {
return nil, IncorrectPasswordError
}
for _, val := range data[dlen-last:] {
if int(val) != last {
return nil, IncorrectPasswordError
}
}
return data[:dlen-last], nil
}
// EncryptPEMBlock returns a PEM block of the specified type holding the
// given DER-encoded data encrypted with the specified algorithm and
// password.
func EncryptPEMBlock(rand io.Reader, blockType string, data, password []byte, alg PEMCipher) (*pem.Block, error) {
ciph := cipherByKey(alg)
if ciph == nil {
return nil, errors.New("x509: unknown encryption mode")
}
iv := make([]byte, ciph.blockSize)
if _, err := io.ReadFull(rand, iv); err != nil {
return nil, errors.New("x509: cannot generate IV: " + err.Error())
}
// The salt is the first 8 bytes of the initialization vector,
// matching the key derivation in DecryptPEMBlock.
key := ciph.deriveKey(password, iv[:8])
block, err := ciph.cipherFunc(key)
if err != nil {
return nil, err
}
enc := cipher.NewCBCEncrypter(block, iv)
pad := ciph.blockSize - len(data)%ciph.blockSize
encrypted := make([]byte, len(data), len(data)+pad)
// We could save this copy by encrypting all the whole blocks in
// the data separately, but it doesn't seem worth the additional
// code.
copy(encrypted, data)
// See RFC 1423, section 1.1
for i := 0; i < pad; i++ {
encrypted = append(encrypted, byte(pad))
}
enc.CryptBlocks(encrypted, encrypted)
return &pem.Block{
Type: blockType,
Headers: map[string]string{
"Proc-Type": "4,ENCRYPTED",
"DEK-Info": ciph.name + "," + hex.EncodeToString(iv),
},
Bytes: encrypted,
}, nil
}
func cipherByName(name string) *rfc1423Algo {
for i := range rfc1423Algos {
alg := &rfc1423Algos[i]
if alg.name == name {
return alg
}
}
return nil
}
func cipherByKey(key PEMCipher) *rfc1423Algo {
for i := range rfc1423Algos {
alg := &rfc1423Algos[i]
if alg.cipher == key {
return alg
}
}
return nil
}

223
ct/x509/pem_decrypt_test.go
View File

@ -1,223 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"bytes"
"crypto/rand"
"encoding/base64"
"encoding/pem"
"testing"
)
func TestDecrypt(t *testing.T) {
for i, data := range testData {
t.Logf("test %d. %s", i, data.kind)
block, rest := pem.Decode(data.pemData)
if len(rest) > 0 {
t.Error("extra data")
}
der, err := DecryptPEMBlock(block, data.password)
if err != nil {
t.Error("decrypt failed: ", err)
continue
}
if _, err := ParsePKCS1PrivateKey(der); err != nil {
t.Error("invalid private key: ", err)
}
plainDER, err := base64.StdEncoding.DecodeString(data.plainDER)
if err != nil {
t.Fatal("cannot decode test DER data: ", err)
}
if !bytes.Equal(der, plainDER) {
t.Error("data mismatch")
}
}
}
func TestEncrypt(t *testing.T) {
for i, data := range testData {
t.Logf("test %d. %s", i, data.kind)
plainDER, err := base64.StdEncoding.DecodeString(data.plainDER)
if err != nil {
t.Fatal("cannot decode test DER data: ", err)
}
password := []byte("kremvax1")
block, err := EncryptPEMBlock(rand.Reader, "RSA PRIVATE KEY", plainDER, password, data.kind)
if err != nil {
t.Error("encrypt: ", err)
continue
}
if !IsEncryptedPEMBlock(block) {
t.Error("PEM block does not appear to be encrypted")
}
if block.Type != "RSA PRIVATE KEY" {
t.Errorf("unexpected block type; got %q want %q", block.Type, "RSA PRIVATE KEY")
}
if block.Headers["Proc-Type"] != "4,ENCRYPTED" {
t.Errorf("block does not have correct Proc-Type header")
}
der, err := DecryptPEMBlock(block, password)
if err != nil {
t.Error("decrypt: ", err)
continue
}
if !bytes.Equal(der, plainDER) {
t.Errorf("data mismatch")
}
}
}
var testData = []struct {
kind PEMCipher
password []byte
pemData []byte
plainDER string
}{
{
kind: PEMCipherDES,
password: []byte("asdf"),
pemData: []byte(`
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-CBC,34F09A4FC8DE22B5
WXxy8kbZdiZvANtKvhmPBLV7eVFj2A5z6oAxvI9KGyhG0ZK0skfnt00C24vfU7m5
ICXeoqP67lzJ18xCzQfHjDaBNs53DSDT+Iz4e8QUep1xQ30+8QKX2NA2coee3nwc
6oM1cuvhNUDemBH2i3dKgMVkfaga0zQiiOq6HJyGSncCMSruQ7F9iWEfRbFcxFCx
qtHb1kirfGKEtgWTF+ynyco6+2gMXNu70L7nJcnxnV/RLFkHt7AUU1yrclxz7eZz
XOH9VfTjb52q/I8Suozq9coVQwg4tXfIoYUdT//O+mB7zJb9HI9Ps77b9TxDE6Gm
4C9brwZ3zg2vqXcwwV6QRZMtyll9rOpxkbw6NPlpfBqkc3xS51bbxivbO/Nve4KD
r12ymjFNF4stXCfJnNqKoZ50BHmEEUDu5Wb0fpVn82XrGw7CYc4iug==
-----END RSA PRIVATE KEY-----`),
plainDER: `
MIIBPAIBAAJBAPASZe+tCPU6p80AjHhDkVsLYa51D35e/YGa8QcZyooeZM8EHozo
KD0fNiKI+53bHdy07N+81VQ8/ejPcRoXPlsCAwEAAQJBAMTxIuSq27VpR+zZ7WJf
c6fvv1OBvpMZ0/d1pxL/KnOAgq2rD5hDtk9b0LGhTPgQAmrrMTKuSeGoIuYE+gKQ
QvkCIQD+GC1m+/do+QRurr0uo46Kx1LzLeSCrjBk34wiOp2+dwIhAPHfTLRXS2fv
7rljm0bYa4+eDZpz+E8RcXEgzhhvcQQ9AiAI5eHZJGOyml3MXnQjiPi55WcDOw0w
glcRgT6QCEtz2wIhANSyqaFtosIkHKqrDUGfz/bb5tqMYTAnBruVPaf/WEOBAiEA
9xORWeRG1tRpso4+dYy4KdDkuLPIO01KY6neYGm3BCM=`,
},
{
kind: PEMCipher3DES,
password: []byte("asdf"),
pemData: []byte(`
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: DES-EDE3-CBC,C1F4A6A03682C2C7
0JqVdBEH6iqM7drTkj+e2W/bE3LqakaiWhb9WUVonFkhyu8ca/QzebY3b5gCvAZQ
YwBvDcT/GHospKqPx+cxDHJNsUASDZws6bz8ZXWJGwZGExKzr0+Qx5fgXn44Ms3x
8g1ENFuTXtxo+KoNK0zuAMAqp66Llcds3Fjl4XR18QaD0CrVNAfOdgATWZm5GJxk
Fgx5f84nT+/ovvreG+xeOzWgvtKo0UUZVrhGOgfKLpa57adumcJ6SkUuBtEFpZFB
ldw5w7WC7d13x2LsRkwo8ZrDKgIV+Y9GNvhuCCkTzNP0V3gNeJpd201HZHR+9n3w
3z0VjR/MGqsfcy1ziEWMNOO53At3zlG6zP05aHMnMcZoVXadEK6L1gz++inSSDCq
gI0UJP4e3JVB7AkgYymYAwiYALAkoEIuanxoc50njJk=
-----END RSA PRIVATE KEY-----`),
plainDER: `
MIIBOwIBAAJBANOCXKdoNS/iP/MAbl9cf1/SF3P+Ns7ZeNL27CfmDh0O6Zduaax5
NBiumd2PmjkaCu7lQ5JOibHfWn+xJsc3kw0CAwEAAQJANX/W8d1Q/sCqzkuAn4xl
B5a7qfJWaLHndu1QRLNTRJPn0Ee7OKJ4H0QKOhQM6vpjRrz+P2u9thn6wUxoPsef
QQIhAP/jCkfejFcy4v15beqKzwz08/tslVjF+Yq41eJGejmxAiEA05pMoqfkyjcx
fyvGhpoOyoCp71vSGUfR2I9CR65oKh0CIC1Msjs66LlfJtQctRq6bCEtFCxEcsP+
eEjYo/Sk6WphAiEAxpgWPMJeU/shFT28gS+tmhjPZLpEoT1qkVlC14u0b3ECIQDX
tZZZxCtPAm7shftEib0VU77Lk8MsXJcx2C4voRsjEw==`,
},
{
kind: PEMCipherAES128,
password: []byte("asdf"),
pemData: []byte(`
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,D4492E793FC835CC038A728ED174F78A
EyfQSzXSjv6BaNH+NHdXRlkHdimpF9izWlugVJAPApgXrq5YldPe2aGIOFXyJ+QE
ZIG20DYqaPzJRjTEbPNZ6Es0S2JJ5yCpKxwJuDkgJZKtF39Q2i36JeGbSZQIuWJE
GZbBpf1jDH/pr0iGonuAdl2PCCZUiy+8eLsD2tyviHUkFLOB+ykYoJ5t8ngZ/B6D
33U43LLb7+9zD4y3Q9OVHqBFGyHcxCY9+9Qh4ZnFp7DTf6RY5TNEvE3s4g6aDpBs
3NbvRVvYTgs8K9EPk4K+5R+P2kD8J8KvEIGxVa1vz8QoCJ/jr7Ka2rvNgPCex5/E
080LzLHPCrXKdlr/f50yhNWq08ZxMWQFkui+FDHPDUaEELKAXV8/5PDxw80Rtybo
AVYoCVIbZXZCuCO81op8UcOgEpTtyU5Lgh3Mw5scQL0=
-----END RSA PRIVATE KEY-----`),
plainDER: `
MIIBOgIBAAJBAMBlj5FxYtqbcy8wY89d/S7n0+r5MzD9F63BA/Lpl78vQKtdJ5dT
cDGh/rBt1ufRrNp0WihcmZi7Mpl/3jHjiWECAwEAAQJABNOHYnKhtDIqFYj1OAJ3
k3GlU0OlERmIOoeY/cL2V4lgwllPBEs7r134AY4wMmZSBUj8UR/O4SNO668ElKPE
cQIhAOuqY7/115x5KCdGDMWi+jNaMxIvI4ETGwV40ykGzqlzAiEA0P9oEC3m9tHB
kbpjSTxaNkrXxDgdEOZz8X0uOUUwHNsCIAwzcSCiGLyYJTULUmP1ESERfW1mlV78
XzzESaJpIM/zAiBQkSTcl9VhcJreQqvjn5BnPZLP4ZHS4gPwJAGdsj5J4QIhAOVR
B3WlRNTXR2WsJ5JdByezg9xzdXzULqmga0OE339a`,
},
{
kind: PEMCipherAES192,
password: []byte("asdf"),
pemData: []byte(`
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-192-CBC,E2C9FB02BCA23ADE1829F8D8BC5F5369
cqVslvHqDDM6qwU6YjezCRifXmKsrgEev7ng6Qs7UmDJOpHDgJQZI9fwMFUhIyn5
FbCu1SHkLMW52Ld3CuEqMnzWMlhPrW8tFvUOrMWPYSisv7nNq88HobZEJcUNL2MM
Y15XmHW6IJwPqhKyLHpWXyOCVEh4ODND2nV15PCoi18oTa475baxSk7+1qH7GuIs
Rb7tshNTMqHbCpyo9Rn3UxeFIf9efdl8YLiMoIqc7J8E5e9VlbeQSdLMQOgDAQJG
ReUtTw8exmKsY4gsSjhkg5uiw7/ZB1Ihto0qnfQJgjGc680qGkT1d6JfvOfeYAk6
xn5RqS/h8rYAYm64KnepfC9vIujo4NqpaREDmaLdX5MJPQ+SlytITQvgUsUq3q/t
Ss85xjQEZH3hzwjQqdJvmA4hYP6SUjxYpBM+02xZ1Xw=
-----END RSA PRIVATE KEY-----`),
plainDER: `
MIIBOwIBAAJBAMGcRrZiNNmtF20zyS6MQ7pdGx17aFDl+lTl+qnLuJRUCMUG05xs
OmxmL/O1Qlf+bnqR8Bgg65SfKg21SYuLhiMCAwEAAQJBAL94uuHyO4wux2VC+qpj
IzPykjdU7XRcDHbbvksf4xokSeUFjjD3PB0Qa83M94y89ZfdILIqS9x5EgSB4/lX
qNkCIQD6cCIqLfzq/lYbZbQgAAjpBXeQVYsbvVtJrPrXJAlVVQIhAMXpDKMeFPMn
J0g2rbx1gngx0qOa5r5iMU5w/noN4W2XAiBjf+WzCG5yFvazD+dOx3TC0A8+4x3P
uZ3pWbaXf5PNuQIgAcdXarvhelH2w2piY1g3BPeFqhzBSCK/yLGxR82KIh8CIQDD
+qGKsd09NhQ/G27y/DARzOYtml1NvdmCQAgsDIIOLA==`,
},
{
kind: PEMCipherAES256,
password: []byte("asdf"),
pemData: []byte(`
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-256-CBC,8E7ED5CD731902CE938957A886A5FFBD
4Mxr+KIzRVwoOP0wwq6caSkvW0iS+GE2h2Ov/u+n9ZTMwL83PRnmjfjzBgfRZLVf
JFPXxUK26kMNpIdssNnqGOds+DhB+oSrsNKoxgxSl5OBoYv9eJTVYm7qOyAFIsjr
DRKAcjYCmzfesr7PVTowwy0RtHmYwyXMGDlAzzZrEvaiySFFmMyKKvtoavwaFoc7
Pz3RZScwIuubzTGJ1x8EzdffYOsdCa9Mtgpp3L136+23dOd6L/qK2EG2fzrJSHs/
2XugkleBFSMKzEp9mxXKRfa++uidQvMZTFLDK9w5YjrRvMBo/l2BoZIsq0jAIE1N
sv5Z/KwlX+3MDEpPQpUwGPlGGdLnjI3UZ+cjgqBcoMiNc6HfgbBgYJSU6aDSHuCk
clCwByxWkBNgJ2GrkwNrF26v+bGJJJNR4SKouY1jQf0=
-----END RSA PRIVATE KEY-----`),
plainDER: `
MIIBOgIBAAJBAKy3GFkstoCHIEeUU/qO8207m8WSrjksR+p9B4tf1w5k+2O1V/GY
AQ5WFCApItcOkQe/I0yZZJk/PmCqMzSxrc8CAwEAAQJAOCAz0F7AW9oNelVQSP8F
Sfzx7O1yom+qWyAQQJF/gFR11gpf9xpVnnyu1WxIRnDUh1LZwUsjwlDYb7MB74id
oQIhANPcOiLwOPT4sIUpRM5HG6BF1BI7L77VpyGVk8xNP7X/AiEA0LMHZtk4I+lJ
nClgYp4Yh2JZ1Znbu7IoQMCEJCjwKDECIGd8Dzm5tViTkUW6Hs3Tlf73nNs65duF
aRnSglss8I3pAiEAonEnKruawgD8RavDFR+fUgmQiPz4FnGGeVgfwpGG1JECIBYq
PXHYtPqxQIbD2pScR5qum7iGUh11lEUPkmt+2uqS`,
},
{
// generated with:
// openssl genrsa -aes128 -passout pass:asdf -out server.orig.key 128
kind: PEMCipherAES128,
password: []byte("asdf"),
pemData: []byte(`
-----BEGIN RSA PRIVATE KEY-----
Proc-Type: 4,ENCRYPTED
DEK-Info: AES-128-CBC,74611ABC2571AF11B1BF9B69E62C89E7
6ei/MlytjE0FFgZOGQ+jrwomKfpl8kdefeE0NSt/DMRrw8OacHAzBNi3pPEa0eX3
eND9l7C9meCirWovjj9QWVHrXyugFuDIqgdhQ8iHTgCfF3lrmcttVrbIfMDw+smD
hTP8O1mS/MHl92NE0nhv0w==
-----END RSA PRIVATE KEY-----`),
plainDER: `
MGMCAQACEQC6ssxmYuauuHGOCDAI54RdAgMBAAECEQCWIn6Yv2O+kBcDF7STctKB
AgkA8SEfu/2i3g0CCQDGNlXbBHX7kQIIK3Ww5o0cYbECCQDCimPb0dYGsQIIeQ7A
jryIst8=`,
},
}

124
ct/x509/pkcs1.go
View File

@ -1,124 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"crypto/rsa"
// START CT CHANGES
"src.agwa.name/ctwatch/ct/asn1"
// END CT CHANGES
"errors"
"math/big"
)
// pkcs1PrivateKey is a structure which mirrors the PKCS#1 ASN.1 for an RSA private key.
type pkcs1PrivateKey struct {
Version int
N *big.Int
E int
D *big.Int
P *big.Int
Q *big.Int
// We ignore these values, if present, because rsa will calculate them.
Dp *big.Int `asn1:"optional"`
Dq *big.Int `asn1:"optional"`
Qinv *big.Int `asn1:"optional"`
AdditionalPrimes []pkcs1AdditionalRSAPrime `asn1:"optional,omitempty"`
}
type pkcs1AdditionalRSAPrime struct {
Prime *big.Int
// We ignore these values because rsa will calculate them.
Exp *big.Int
Coeff *big.Int
}
// ParsePKCS1PrivateKey returns an RSA private key from its ASN.1 PKCS#1 DER encoded form.
func ParsePKCS1PrivateKey(der []byte) (key *rsa.PrivateKey, err error) {
var priv pkcs1PrivateKey
rest, err := asn1.Unmarshal(der, &priv)
if len(rest) > 0 {
err = asn1.SyntaxError{Msg: "trailing data"}
return
}
if err != nil {
return
}
if priv.Version > 1 {
return nil, errors.New("x509: unsupported private key version")
}
if priv.N.Sign() <= 0 || priv.D.Sign() <= 0 || priv.P.Sign() <= 0 || priv.Q.Sign() <= 0 {
return nil, errors.New("x509: private key contains zero or negative value")
}
key = new(rsa.PrivateKey)
key.PublicKey = rsa.PublicKey{
E: priv.E,
N: priv.N,
}
key.D = priv.D
key.Primes = make([]*big.Int, 2+len(priv.AdditionalPrimes))
key.Primes[0] = priv.P
key.Primes[1] = priv.Q
for i, a := range priv.AdditionalPrimes {
if a.Prime.Sign() <= 0 {
return nil, errors.New("x509: private key contains zero or negative prime")
}
key.Primes[i+2] = a.Prime
// We ignore the other two values because rsa will calculate
// them as needed.
}
err = key.Validate()
if err != nil {
return nil, err
}
key.Precompute()
return
}
// MarshalPKCS1PrivateKey converts a private key to ASN.1 DER encoded form.
func MarshalPKCS1PrivateKey(key *rsa.PrivateKey) []byte {
key.Precompute()
version := 0
if len(key.Primes) > 2 {
version = 1
}
priv := pkcs1PrivateKey{
Version: version,
N: key.N,
E: key.PublicKey.E,
D: key.D,
P: key.Primes[0],
Q: key.Primes[1],
Dp: key.Precomputed.Dp,
Dq: key.Precomputed.Dq,
Qinv: key.Precomputed.Qinv,
}
priv.AdditionalPrimes = make([]pkcs1AdditionalRSAPrime, len(key.Precomputed.CRTValues))
for i, values := range key.Precomputed.CRTValues {
priv.AdditionalPrimes[i].Prime = key.Primes[2+i]
priv.AdditionalPrimes[i].Exp = values.Exp
priv.AdditionalPrimes[i].Coeff = values.Coeff
}
b, _ := asn1.Marshal(priv)
return b
}
// rsaPublicKey reflects the ASN.1 structure of a PKCS#1 public key.
type rsaPublicKey struct {
N *big.Int
E int
}

56
ct/x509/pkcs8.go
View File

@ -1,56 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
// START CT CHANGES
"src.agwa.name/ctwatch/ct/asn1"
"src.agwa.name/ctwatch/ct/x509/pkix"
// END CT CHANGES
"errors"
"fmt"
)
// pkcs8 reflects an ASN.1, PKCS#8 PrivateKey. See
// ftp://ftp.rsasecurity.com/pub/pkcs/pkcs-8/pkcs-8v1_2.asn
// and RFC5208.
type pkcs8 struct {
Version int
Algo pkix.AlgorithmIdentifier
PrivateKey []byte
// optional attributes omitted.
}
// ParsePKCS8PrivateKey parses an unencrypted, PKCS#8 private key. See
// http://www.rsa.com/rsalabs/node.asp?id=2130 and RFC5208.
func ParsePKCS8PrivateKey(der []byte) (key interface{}, err error) {
var privKey pkcs8
if _, err := asn1.Unmarshal(der, &privKey); err != nil {
return nil, err
}
switch {
case privKey.Algo.Algorithm.Equal(oidPublicKeyRSA):
key, err = ParsePKCS1PrivateKey(privKey.PrivateKey)
if err != nil {
return nil, errors.New("x509: failed to parse RSA private key embedded in PKCS#8: " + err.Error())
}
return key, nil
case privKey.Algo.Algorithm.Equal(oidPublicKeyECDSA):
bytes := privKey.Algo.Parameters.FullBytes
namedCurveOID := new(asn1.ObjectIdentifier)
if _, err := asn1.Unmarshal(bytes, namedCurveOID); err != nil {
namedCurveOID = nil
}
key, err = parseECPrivateKey(namedCurveOID, privKey.PrivateKey)
if err != nil {
return nil, errors.New("x509: failed to parse EC private key embedded in PKCS#8: " + err.Error())
}
return key, nil
default:
return nil, fmt.Errorf("x509: PKCS#8 wrapping contained private key with unknown algorithm: %v", privKey.Algo.Algorithm)
}
}

28
ct/x509/pkcs8_test.go
View File

@ -1,28 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"encoding/hex"
"testing"
)
var pkcs8RSAPrivateKeyHex = `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`
// Generated using:
// openssl ecparam -genkey -name secp521r1 | openssl pkcs8 -topk8 -nocrypt
var pkcs8ECPrivateKeyHex = `3081ed020100301006072a8648ce3d020106052b810400230481d53081d20201010441850d81618c5da1aec74c2eed608ba816038506975e6427237c2def150c96a3b13efbfa1f89f1be15cdf4d0ac26422e680e65a0ddd4ad3541ad76165fbf54d6e34ba18189038186000400da97bcedba1eb6d30aeb93c9f9a1454598fa47278df27d6f60ea73eb672d8dc528a9b67885b5b5dcef93c9824f7449ab512ee6a27e76142f56b94b474cfd697e810046c8ca70419365245c1d7d44d0db82c334073835d002232714548abbae6e5700f5ef315ee08b929d8581383dcf2d1c98c2f8a9fccbf79c9579f7b2fd8a90115ac2`
func TestPKCS8(t *testing.T) {
derBytes, _ := hex.DecodeString(pkcs8RSAPrivateKeyHex)
if _, err := ParsePKCS8PrivateKey(derBytes); err != nil {
t.Errorf("failed to decode PKCS8 with RSA private key: %s", err)
}
derBytes, _ = hex.DecodeString(pkcs8ECPrivateKeyHex)
if _, err := ParsePKCS8PrivateKey(derBytes); err != nil {
t.Errorf("failed to decode PKCS8 with EC private key: %s", err)
}
}

173
ct/x509/pkix/pkix.go
View File

@ -1,173 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// Package pkix contains shared, low level structures used for ASN.1 parsing
// and serialization of X.509 certificates, CRL and OCSP.
package pkix
import (
// START CT CHANGES
"src.agwa.name/ctwatch/ct/asn1"
// END CT CHANGES
"math/big"
"time"
)
// AlgorithmIdentifier represents the ASN.1 structure of the same name. See RFC
// 5280, section 4.1.1.2.
type AlgorithmIdentifier struct {
Algorithm asn1.ObjectIdentifier
Parameters asn1.RawValue `asn1:"optional"`
}
type RDNSequence []RelativeDistinguishedNameSET
type RelativeDistinguishedNameSET []AttributeTypeAndValue
// AttributeTypeAndValue mirrors the ASN.1 structure of the same name in
// http://tools.ietf.org/html/rfc5280#section-4.1.2.4
type AttributeTypeAndValue struct {
Type asn1.ObjectIdentifier
Value interface{}
}
// Extension represents the ASN.1 structure of the same name. See RFC
// 5280, section 4.2.
type Extension struct {
Id asn1.ObjectIdentifier
Critical bool `asn1:"optional"`
Value []byte
}
// Name represents an X.509 distinguished name. This only includes the common
// elements of a DN. Additional elements in the name are ignored.
type Name struct {
Country, Organization, OrganizationalUnit []string
Locality, Province []string
StreetAddress, PostalCode []string
SerialNumber, CommonName string
Names []AttributeTypeAndValue
}
func (n *Name) FillFromRDNSequence(rdns *RDNSequence) {
for _, rdn := range *rdns {
if len(rdn) == 0 {
continue
}
atv := rdn[0]
n.Names = append(n.Names, atv)
value, ok := atv.Value.(string)
if !ok {
continue
}
t := atv.Type
if len(t) == 4 && t[0] == 2 && t[1] == 5 && t[2] == 4 {
switch t[3] {
case 3:
n.CommonName = value
case 5:
n.SerialNumber = value
case 6:
n.Country = append(n.Country, value)
case 7:
n.Locality = append(n.Locality, value)
case 8:
n.Province = append(n.Province, value)
case 9:
n.StreetAddress = append(n.StreetAddress, value)
case 10:
n.Organization = append(n.Organization, value)
case 11:
n.OrganizationalUnit = append(n.OrganizationalUnit, value)
case 17:
n.PostalCode = append(n.PostalCode, value)
}
}
}
}
var (
oidCountry = []int{2, 5, 4, 6}
oidOrganization = []int{2, 5, 4, 10}
oidOrganizationalUnit = []int{2, 5, 4, 11}
oidCommonName = []int{2, 5, 4, 3}
oidSerialNumber = []int{2, 5, 4, 5}
oidLocality = []int{2, 5, 4, 7}
oidProvince = []int{2, 5, 4, 8}
oidStreetAddress = []int{2, 5, 4, 9}
oidPostalCode = []int{2, 5, 4, 17}
)
// appendRDNs appends a relativeDistinguishedNameSET to the given RDNSequence
// and returns the new value. The relativeDistinguishedNameSET contains an
// attributeTypeAndValue for each of the given values. See RFC 5280, A.1, and
// search for AttributeTypeAndValue.
func appendRDNs(in RDNSequence, values []string, oid asn1.ObjectIdentifier) RDNSequence {
if len(values) == 0 {
return in
}
s := make([]AttributeTypeAndValue, len(values))
for i, value := range values {
s[i].Type = oid
s[i].Value = value
}
return append(in, s)
}
func (n Name) ToRDNSequence() (ret RDNSequence) {
ret = appendRDNs(ret, n.Country, oidCountry)
ret = appendRDNs(ret, n.Organization, oidOrganization)
ret = appendRDNs(ret, n.OrganizationalUnit, oidOrganizationalUnit)
ret = appendRDNs(ret, n.Locality, oidLocality)
ret = appendRDNs(ret, n.Province, oidProvince)
ret = appendRDNs(ret, n.StreetAddress, oidStreetAddress)
ret = appendRDNs(ret, n.PostalCode, oidPostalCode)
if len(n.CommonName) > 0 {
ret = appendRDNs(ret, []string{n.CommonName}, oidCommonName)
}
if len(n.SerialNumber) > 0 {
ret = appendRDNs(ret, []string{n.SerialNumber}, oidSerialNumber)
}
return ret
}
// CertificateList represents the ASN.1 structure of the same name. See RFC
// 5280, section 5.1. Use Certificate.CheckCRLSignature to verify the
// signature.
type CertificateList struct {
TBSCertList TBSCertificateList
SignatureAlgorithm AlgorithmIdentifier
SignatureValue asn1.BitString
}
// HasExpired reports whether now is past the expiry time of certList.
func (certList *CertificateList) HasExpired(now time.Time) bool {
return now.After(certList.TBSCertList.NextUpdate)
}
// TBSCertificateList represents the ASN.1 structure of the same name. See RFC
// 5280, section 5.1.
type TBSCertificateList struct {
Raw asn1.RawContent
Version int `asn1:"optional,default:2"`
Signature AlgorithmIdentifier
Issuer RDNSequence
ThisUpdate time.Time
NextUpdate time.Time
RevokedCertificates []RevokedCertificate `asn1:"optional"`
Extensions []Extension `asn1:"tag:0,optional,explicit"`
}
// RevokedCertificate represents the ASN.1 structure of the same name. See RFC
// 5280, section 5.1.
type RevokedCertificate struct {
SerialNumber *big.Int
RevocationTime time.Time
Extensions []Extension `asn1:"optional"`
}

17
ct/x509/root.go
View File

@ -1,17 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import "sync"
var (
once sync.Once
systemRoots *CertPool
)
func systemRootsPool() *CertPool {
once.Do(initSystemRoots)
return systemRoots
}

83
ct/x509/root_darwin.go
View File

@ -1,83 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin,cgo
package x509
/*
#cgo CFLAGS: -mmacosx-version-min=10.6 -D__MAC_OS_X_VERSION_MAX_ALLOWED=1060
#cgo LDFLAGS: -framework CoreFoundation -framework Security
#include <CoreFoundation/CoreFoundation.h>
#include <Security/Security.h>
// FetchPEMRootsCTX509 fetches the system's list of trusted X.509 root certificates.
//
// On success it returns 0 and fills pemRoots with a CFDataRef that contains the extracted root
// certificates of the system. On failure, the function returns -1.
//
// Note: The CFDataRef returned in pemRoots must be released (using CFRelease) after
// we've consumed its content.
int FetchPEMRootsCTX509(CFDataRef *pemRoots) {
if (pemRoots == NULL) {
return -1;
}
CFArrayRef certs = NULL;
OSStatus err = SecTrustCopyAnchorCertificates(&certs);
if (err != noErr) {
return -1;
}
CFMutableDataRef combinedData = CFDataCreateMutable(kCFAllocatorDefault, 0);
int i, ncerts = CFArrayGetCount(certs);
for (i = 0; i < ncerts; i++) {
CFDataRef data = NULL;
SecCertificateRef cert = (SecCertificateRef)CFArrayGetValueAtIndex(certs, i);
if (cert == NULL) {
continue;
}
// Note: SecKeychainItemExport is deprecated as of 10.7 in favor of SecItemExport.
// Once we support weak imports via cgo we should prefer that, and fall back to this
// for older systems.
err = SecKeychainItemExport(cert, kSecFormatX509Cert, kSecItemPemArmour, NULL, &data);
if (err != noErr) {
continue;
}
if (data != NULL) {
CFDataAppendBytes(combinedData, CFDataGetBytePtr(data), CFDataGetLength(data));
CFRelease(data);
}
}
CFRelease(certs);
*pemRoots = combinedData;
return 0;
}
*/
import "C"
import "unsafe"
func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
return nil, nil
}
func initSystemRoots() {
roots := NewCertPool()
var data C.CFDataRef = nil
err := C.FetchPEMRootsCTX509(&data)
if err == -1 {
return
}
defer C.CFRelease(C.CFTypeRef(data))
buf := C.GoBytes(unsafe.Pointer(C.CFDataGetBytePtr(data)), C.int(C.CFDataGetLength(data)))
roots.AppendCertsFromPEM(buf)
systemRoots = roots
}

33
ct/x509/root_plan9.go
View File

@ -1,33 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build plan9
package x509
import "io/ioutil"
// Possible certificate files; stop after finding one.
var certFiles = []string{
"/sys/lib/tls/ca.pem",
}
func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
return nil, nil
}
func initSystemRoots() {
roots := NewCertPool()
for _, file := range certFiles {
data, err := ioutil.ReadFile(file)
if err == nil {
roots.AppendCertsFromPEM(data)
systemRoots = roots
return
}
}
// All of the files failed to load. systemRoots will be nil which will
// trigger a specific error at verification time.
}

14
ct/x509/root_stub.go
View File

@ -1,14 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build darwin,!cgo
package x509
func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
return nil, nil
}
func initSystemRoots() {
}

37
ct/x509/root_unix.go
View File

@ -1,37 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
// +build dragonfly freebsd linux openbsd netbsd
package x509
import "io/ioutil"
// Possible certificate files; stop after finding one.
var certFiles = []string{
"/etc/ssl/certs/ca-certificates.crt", // Debian/Ubuntu/Gentoo etc.
"/etc/pki/tls/certs/ca-bundle.crt", // Fedora/RHEL
"/etc/ssl/ca-bundle.pem", // OpenSUSE
"/etc/ssl/cert.pem", // OpenBSD
"/usr/local/share/certs/ca-root-nss.crt", // FreeBSD/DragonFly
}
func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
return nil, nil
}
func initSystemRoots() {
roots := NewCertPool()
for _, file := range certFiles {
data, err := ioutil.ReadFile(file)
if err == nil {
roots.AppendCertsFromPEM(data)
systemRoots = roots
return
}
}
// All of the files failed to load. systemRoots will be nil which will
// trigger a specific error at verification time.
}

229
ct/x509/root_windows.go
View File

@ -1,229 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"errors"
"syscall"
"unsafe"
)
// Creates a new *syscall.CertContext representing the leaf certificate in an in-memory
// certificate store containing itself and all of the intermediate certificates specified
// in the opts.Intermediates CertPool.
//
// A pointer to the in-memory store is available in the returned CertContext's Store field.
// The store is automatically freed when the CertContext is freed using
// syscall.CertFreeCertificateContext.
func createStoreContext(leaf *Certificate, opts *VerifyOptions) (*syscall.CertContext, error) {
var storeCtx *syscall.CertContext
leafCtx, err := syscall.CertCreateCertificateContext(syscall.X509_ASN_ENCODING|syscall.PKCS_7_ASN_ENCODING, &leaf.Raw[0], uint32(len(leaf.Raw)))
if err != nil {
return nil, err
}
defer syscall.CertFreeCertificateContext(leafCtx)
handle, err := syscall.CertOpenStore(syscall.CERT_STORE_PROV_MEMORY, 0, 0, syscall.CERT_STORE_DEFER_CLOSE_UNTIL_LAST_FREE_FLAG, 0)
if err != nil {
return nil, err
}
defer syscall.CertCloseStore(handle, 0)
err = syscall.CertAddCertificateContextToStore(handle, leafCtx, syscall.CERT_STORE_ADD_ALWAYS, &storeCtx)
if err != nil {
return nil, err
}
if opts.Intermediates != nil {
for _, intermediate := range opts.Intermediates.certs {
ctx, err := syscall.CertCreateCertificateContext(syscall.X509_ASN_ENCODING|syscall.PKCS_7_ASN_ENCODING, &intermediate.Raw[0], uint32(len(intermediate.Raw)))
if err != nil {
return nil, err
}
err = syscall.CertAddCertificateContextToStore(handle, ctx, syscall.CERT_STORE_ADD_ALWAYS, nil)
syscall.CertFreeCertificateContext(ctx)
if err != nil {
return nil, err
}
}
}
return storeCtx, nil
}
// extractSimpleChain extracts the final certificate chain from a CertSimpleChain.
func extractSimpleChain(simpleChain **syscall.CertSimpleChain, count int) (chain []*Certificate, err error) {
if simpleChain == nil || count == 0 {
return nil, errors.New("x509: invalid simple chain")
}
simpleChains := (*[1 << 20]*syscall.CertSimpleChain)(unsafe.Pointer(simpleChain))[:]
lastChain := simpleChains[count-1]
elements := (*[1 << 20]*syscall.CertChainElement)(unsafe.Pointer(lastChain.Elements))[:]
for i := 0; i < int(lastChain.NumElements); i++ {
// Copy the buf, since ParseCertificate does not create its own copy.
cert := elements[i].CertContext
encodedCert := (*[1 << 20]byte)(unsafe.Pointer(cert.EncodedCert))[:]
buf := make([]byte, cert.Length)
copy(buf, encodedCert[:])
parsedCert, err := ParseCertificate(buf)
if err != nil {
return nil, err
}
chain = append(chain, parsedCert)
}
return chain, nil
}
// checkChainTrustStatus checks the trust status of the certificate chain, translating
// any errors it finds into Go errors in the process.
func checkChainTrustStatus(c *Certificate, chainCtx *syscall.CertChainContext) error {
if chainCtx.TrustStatus.ErrorStatus != syscall.CERT_TRUST_NO_ERROR {
status := chainCtx.TrustStatus.ErrorStatus
switch status {
case syscall.CERT_TRUST_IS_NOT_TIME_VALID:
return CertificateInvalidError{c, Expired}
default:
return UnknownAuthorityError{c, nil, nil}
}
}
return nil
}
// checkChainSSLServerPolicy checks that the certificate chain in chainCtx is valid for
// use as a certificate chain for a SSL/TLS server.
func checkChainSSLServerPolicy(c *Certificate, chainCtx *syscall.CertChainContext, opts *VerifyOptions) error {
servernamep, err := syscall.UTF16PtrFromString(opts.DNSName)
if err != nil {
return err
}
sslPara := &syscall.SSLExtraCertChainPolicyPara{
AuthType: syscall.AUTHTYPE_SERVER,
ServerName: servernamep,
}
sslPara.Size = uint32(unsafe.Sizeof(*sslPara))
para := &syscall.CertChainPolicyPara{
ExtraPolicyPara: uintptr(unsafe.Pointer(sslPara)),
}
para.Size = uint32(unsafe.Sizeof(*para))
status := syscall.CertChainPolicyStatus{}
err = syscall.CertVerifyCertificateChainPolicy(syscall.CERT_CHAIN_POLICY_SSL, chainCtx, para, &status)
if err != nil {
return err
}
// TODO(mkrautz): use the lChainIndex and lElementIndex fields
// of the CertChainPolicyStatus to provide proper context, instead
// using c.
if status.Error != 0 {
switch status.Error {
case syscall.CERT_E_EXPIRED:
return CertificateInvalidError{c, Expired}
case syscall.CERT_E_CN_NO_MATCH:
return HostnameError{c, opts.DNSName}
case syscall.CERT_E_UNTRUSTEDROOT:
return UnknownAuthorityError{c, nil, nil}
default:
return UnknownAuthorityError{c, nil, nil}
}
}
return nil
}
// systemVerify is like Verify, except that it uses CryptoAPI calls
// to build certificate chains and verify them.
func (c *Certificate) systemVerify(opts *VerifyOptions) (chains [][]*Certificate, err error) {
hasDNSName := opts != nil && len(opts.DNSName) > 0
storeCtx, err := createStoreContext(c, opts)
if err != nil {
return nil, err
}
defer syscall.CertFreeCertificateContext(storeCtx)
para := new(syscall.CertChainPara)
para.Size = uint32(unsafe.Sizeof(*para))
// If there's a DNSName set in opts, assume we're verifying
// a certificate from a TLS server.
if hasDNSName {
oids := []*byte{
&syscall.OID_PKIX_KP_SERVER_AUTH[0],
// Both IE and Chrome allow certificates with
// Server Gated Crypto as well. Some certificates
// in the wild require them.
&syscall.OID_SERVER_GATED_CRYPTO[0],
&syscall.OID_SGC_NETSCAPE[0],
}
para.RequestedUsage.Type = syscall.USAGE_MATCH_TYPE_OR
para.RequestedUsage.Usage.Length = uint32(len(oids))
para.RequestedUsage.Usage.UsageIdentifiers = &oids[0]
} else {
para.RequestedUsage.Type = syscall.USAGE_MATCH_TYPE_AND
para.RequestedUsage.Usage.Length = 0
para.RequestedUsage.Usage.UsageIdentifiers = nil
}
var verifyTime *syscall.Filetime
if opts != nil && !opts.CurrentTime.IsZero() {
ft := syscall.NsecToFiletime(opts.CurrentTime.UnixNano())
verifyTime = &ft
}
// CertGetCertificateChain will traverse Windows's root stores
// in an attempt to build a verified certificate chain. Once
// it has found a verified chain, it stops. MSDN docs on
// CERT_CHAIN_CONTEXT:
//
// When a CERT_CHAIN_CONTEXT is built, the first simple chain
// begins with an end certificate and ends with a self-signed
// certificate. If that self-signed certificate is not a root
// or otherwise trusted certificate, an attempt is made to
// build a new chain. CTLs are used to create the new chain
// beginning with the self-signed certificate from the original
// chain as the end certificate of the new chain. This process
// continues building additional simple chains until the first
// self-signed certificate is a trusted certificate or until
// an additional simple chain cannot be built.
//
// The result is that we'll only get a single trusted chain to
// return to our caller.
var chainCtx *syscall.CertChainContext
err = syscall.CertGetCertificateChain(syscall.Handle(0), storeCtx, verifyTime, storeCtx.Store, para, 0, 0, &chainCtx)
if err != nil {
return nil, err
}
defer syscall.CertFreeCertificateChain(chainCtx)
err = checkChainTrustStatus(c, chainCtx)
if err != nil {
return nil, err
}
if hasDNSName {
err = checkChainSSLServerPolicy(c, chainCtx, opts)
if err != nil {
return nil, err
}
}
chain, err := extractSimpleChain(chainCtx.Chains, int(chainCtx.ChainCount))
if err != nil {
return nil, err
}
chains = append(chains, chain)
return chains, nil
}
func initSystemRoots() {
}

85
ct/x509/sec1.go
View File

@ -1,85 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"crypto/ecdsa"
"crypto/elliptic"
// START CT CHANGES
"src.agwa.name/ctwatch/ct/asn1"
// START CT CHANGES
"errors"
"fmt"
"math/big"
)
const ecPrivKeyVersion = 1
// ecPrivateKey reflects an ASN.1 Elliptic Curve Private Key Structure.
// References:
// RFC5915
// SEC1 - http://www.secg.org/download/aid-780/sec1-v2.pdf
// Per RFC5915 the NamedCurveOID is marked as ASN.1 OPTIONAL, however in
// most cases it is not.
type ecPrivateKey struct {
Version int
PrivateKey []byte
NamedCurveOID asn1.ObjectIdentifier `asn1:"optional,explicit,tag:0"`
PublicKey asn1.BitString `asn1:"optional,explicit,tag:1"`
}
// ParseECPrivateKey parses an ASN.1 Elliptic Curve Private Key Structure.
func ParseECPrivateKey(der []byte) (key *ecdsa.PrivateKey, err error) {
return parseECPrivateKey(nil, der)
}
// MarshalECPrivateKey marshals an EC private key into ASN.1, DER format.
func MarshalECPrivateKey(key *ecdsa.PrivateKey) ([]byte, error) {
oid, ok := oidFromNamedCurve(key.Curve)
if !ok {
return nil, errors.New("x509: unknown elliptic curve")
}
return asn1.Marshal(ecPrivateKey{
Version: 1,
PrivateKey: key.D.Bytes(),
NamedCurveOID: oid,
PublicKey: asn1.BitString{Bytes: elliptic.Marshal(key.Curve, key.X, key.Y)},
})
}
// parseECPrivateKey parses an ASN.1 Elliptic Curve Private Key Structure.
// The OID for the named curve may be provided from another source (such as
// the PKCS8 container) - if it is provided then use this instead of the OID
// that may exist in the EC private key structure.
func parseECPrivateKey(namedCurveOID *asn1.ObjectIdentifier, der []byte) (key *ecdsa.PrivateKey, err error) {
var privKey ecPrivateKey
if _, err := asn1.Unmarshal(der, &privKey); err != nil {
return nil, errors.New("x509: failed to parse EC private key: " + err.Error())
}
if privKey.Version != ecPrivKeyVersion {
return nil, fmt.Errorf("x509: unknown EC private key version %d", privKey.Version)
}
var curve elliptic.Curve
if namedCurveOID != nil {
curve = namedCurveFromOID(*namedCurveOID)
} else {
curve = namedCurveFromOID(privKey.NamedCurveOID)
}
if curve == nil {
return nil, errors.New("x509: unknown elliptic curve")
}
k := new(big.Int).SetBytes(privKey.PrivateKey)
if k.Cmp(curve.Params().N) >= 0 {
return nil, errors.New("x509: invalid elliptic curve private key value")
}
priv := new(ecdsa.PrivateKey)
priv.Curve = curve
priv.D = k
priv.X, priv.Y = curve.ScalarBaseMult(privKey.PrivateKey)
return priv, nil
}

30
ct/x509/sec1_test.go
View File

@ -1,30 +0,0 @@
// Copyright 2012 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"bytes"
"encoding/hex"
"testing"
)
// Generated using:
// openssl ecparam -genkey -name secp384r1 -outform PEM
var ecPrivateKeyHex = `3081a40201010430bdb9839c08ee793d1157886a7a758a3c8b2a17a4df48f17ace57c72c56b4723cf21dcda21d4e1ad57ff034f19fcfd98ea00706052b81040022a16403620004feea808b5ee2429cfcce13c32160e1c960990bd050bb0fdf7222f3decd0a55008e32a6aa3c9062051c4cba92a7a3b178b24567412d43cdd2f882fa5addddd726fe3e208d2c26d733a773a597abb749714df7256ead5105fa6e7b3650de236b50`
func TestParseECPrivateKey(t *testing.T) {
derBytes, _ := hex.DecodeString(ecPrivateKeyHex)
key, err := ParseECPrivateKey(derBytes)
if err != nil {
t.Errorf("failed to decode EC private key: %s", err)
}
serialized, err := MarshalECPrivateKey(key)
if err != nil {
t.Fatalf("failed to encode EC private key: %s", err)
}
if !bytes.Equal(serialized, derBytes) {
t.Fatalf("serialized key differs: got %x, want %x", serialized, derBytes)
}
}

476
ct/x509/verify.go
View File

@ -1,476 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"fmt"
"net"
"runtime"
"strings"
"time"
"unicode/utf8"
)
type InvalidReason int
const (
// NotAuthorizedToSign results when a certificate is signed by another
// which isn't marked as a CA certificate.
NotAuthorizedToSign InvalidReason = iota
// Expired results when a certificate has expired, based on the time
// given in the VerifyOptions.
Expired
// CANotAuthorizedForThisName results when an intermediate or root
// certificate has a name constraint which doesn't include the name
// being checked.
CANotAuthorizedForThisName
// TooManyIntermediates results when a path length constraint is
// violated.
TooManyIntermediates
// IncompatibleUsage results when the certificate's key usage indicates
// that it may only be used for a different purpose.
IncompatibleUsage
)
// CertificateInvalidError results when an odd error occurs. Users of this
// library probably want to handle all these errors uniformly.
type CertificateInvalidError struct {
Cert *Certificate
Reason InvalidReason
}
func (e CertificateInvalidError) Error() string {
switch e.Reason {
case NotAuthorizedToSign:
return "x509: certificate is not authorized to sign other certificates"
case Expired:
return "x509: certificate has expired or is not yet valid"
case CANotAuthorizedForThisName:
return "x509: a root or intermediate certificate is not authorized to sign in this domain"
case TooManyIntermediates:
return "x509: too many intermediates for path length constraint"
case IncompatibleUsage:
return "x509: certificate specifies an incompatible key usage"
}
return "x509: unknown error"
}
// HostnameError results when the set of authorized names doesn't match the
// requested name.
type HostnameError struct {
Certificate *Certificate
Host string
}
func (h HostnameError) Error() string {
c := h.Certificate
var valid string
if ip := net.ParseIP(h.Host); ip != nil {
// Trying to validate an IP
if len(c.IPAddresses) == 0 {
return "x509: cannot validate certificate for " + h.Host + " because it doesn't contain any IP SANs"
}
for _, san := range c.IPAddresses {
if len(valid) > 0 {
valid += ", "
}
valid += san.String()
}
} else {
if len(c.DNSNames) > 0 {
valid = strings.Join(c.DNSNames, ", ")
} else {
valid = c.Subject.CommonName
}
}
return "x509: certificate is valid for " + valid + ", not " + h.Host
}
// UnknownAuthorityError results when the certificate issuer is unknown
type UnknownAuthorityError struct {
cert *Certificate
// hintErr contains an error that may be helpful in determining why an
// authority wasn't found.
hintErr error
// hintCert contains a possible authority certificate that was rejected
// because of the error in hintErr.
hintCert *Certificate
}
func (e UnknownAuthorityError) Error() string {
s := "x509: certificate signed by unknown authority"
if e.hintErr != nil {
certName := e.hintCert.Subject.CommonName
if len(certName) == 0 {
if len(e.hintCert.Subject.Organization) > 0 {
certName = e.hintCert.Subject.Organization[0]
}
certName = "serial:" + e.hintCert.SerialNumber.String()
}
s += fmt.Sprintf(" (possibly because of %q while trying to verify candidate authority certificate %q)", e.hintErr, certName)
}
return s
}
// SystemRootsError results when we fail to load the system root certificates.
type SystemRootsError struct {
}
func (e SystemRootsError) Error() string {
return "x509: failed to load system roots and no roots provided"
}
// VerifyOptions contains parameters for Certificate.Verify. It's a structure
// because other PKIX verification APIs have ended up needing many options.
type VerifyOptions struct {
DNSName string
Intermediates *CertPool
Roots *CertPool // if nil, the system roots are used
CurrentTime time.Time // if zero, the current time is used
DisableTimeChecks bool
// KeyUsage specifies which Extended Key Usage values are acceptable.
// An empty list means ExtKeyUsageServerAuth. Key usage is considered a
// constraint down the chain which mirrors Windows CryptoAPI behaviour,
// but not the spec. To accept any key usage, include ExtKeyUsageAny.
KeyUsages []ExtKeyUsage
}
const (
leafCertificate = iota
intermediateCertificate
rootCertificate
)
// isValid performs validity checks on the c.
func (c *Certificate) isValid(certType int, currentChain []*Certificate, opts *VerifyOptions) error {
if !opts.DisableTimeChecks {
now := opts.CurrentTime
if now.IsZero() {
now = time.Now()
}
if now.Before(c.NotBefore) || now.After(c.NotAfter) {
return CertificateInvalidError{c, Expired}
}
}
if len(c.PermittedDNSDomains) > 0 {
ok := false
for _, domain := range c.PermittedDNSDomains {
if opts.DNSName == domain ||
(strings.HasSuffix(opts.DNSName, domain) &&
len(opts.DNSName) >= 1+len(domain) &&
opts.DNSName[len(opts.DNSName)-len(domain)-1] == '.') {
ok = true
break
}
}
if !ok {
return CertificateInvalidError{c, CANotAuthorizedForThisName}
}
}
// KeyUsage status flags are ignored. From Engineering Security, Peter
// Gutmann: A European government CA marked its signing certificates as
// being valid for encryption only, but no-one noticed. Another
// European CA marked its signature keys as not being valid for
// signatures. A different CA marked its own trusted root certificate
// as being invalid for certificate signing. Another national CA
// distributed a certificate to be used to encrypt data for the
// country’s tax authority that was marked as only being usable for
// digital signatures but not for encryption. Yet another CA reversed
// the order of the bit flags in the keyUsage due to confusion over
// encoding endianness, essentially setting a random keyUsage in
// certificates that it issued. Another CA created a self-invalidating
// certificate by adding a certificate policy statement stipulating
// that the certificate had to be used strictly as specified in the
// keyUsage, and a keyUsage containing a flag indicating that the RSA
// encryption key could only be used for Diffie-Hellman key agreement.
if certType == intermediateCertificate && (!c.BasicConstraintsValid || !c.IsCA) {
return CertificateInvalidError{c, NotAuthorizedToSign}
}
if c.BasicConstraintsValid && c.MaxPathLen >= 0 {
numIntermediates := len(currentChain) - 1
if numIntermediates > c.MaxPathLen {
return CertificateInvalidError{c, TooManyIntermediates}
}
}
return nil
}
// Verify attempts to verify c by building one or more chains from c to a
// certificate in opts.Roots, using certificates in opts.Intermediates if
// needed. If successful, it returns one or more chains where the first
// element of the chain is c and the last element is from opts.Roots.
//
// WARNING: this doesn't do any revocation checking.
func (c *Certificate) Verify(opts VerifyOptions) (chains [][]*Certificate, err error) {
// Use Windows's own verification and chain building.
if opts.Roots == nil && runtime.GOOS == "windows" {
return c.systemVerify(&opts)
}
if opts.Roots == nil {
opts.Roots = systemRootsPool()
if opts.Roots == nil {
return nil, SystemRootsError{}
}
}
err = c.isValid(leafCertificate, nil, &opts)
if err != nil {
return
}
if len(opts.DNSName) > 0 {
err = c.VerifyHostname(opts.DNSName)
if err != nil {
return
}
}
candidateChains, err := c.buildChains(make(map[int][][]*Certificate), []*Certificate{c}, &opts)
if err != nil {
return
}
keyUsages := opts.KeyUsages
if len(keyUsages) == 0 {
keyUsages = []ExtKeyUsage{ExtKeyUsageServerAuth}
}
// If any key usage is acceptable then we're done.
for _, usage := range keyUsages {
if usage == ExtKeyUsageAny {
chains = candidateChains
return
}
}
for _, candidate := range candidateChains {
if checkChainForKeyUsage(candidate, keyUsages) {
chains = append(chains, candidate)
}
}
if len(chains) == 0 {
err = CertificateInvalidError{c, IncompatibleUsage}
}
return
}
func appendToFreshChain(chain []*Certificate, cert *Certificate) []*Certificate {
n := make([]*Certificate, len(chain)+1)
copy(n, chain)
n[len(chain)] = cert
return n
}
func (c *Certificate) buildChains(cache map[int][][]*Certificate, currentChain []*Certificate, opts *VerifyOptions) (chains [][]*Certificate, err error) {
possibleRoots, failedRoot, rootErr := opts.Roots.findVerifiedParents(c)
for _, rootNum := range possibleRoots {
root := opts.Roots.certs[rootNum]
err = root.isValid(rootCertificate, currentChain, opts)
if err != nil {
continue
}
chains = append(chains, appendToFreshChain(currentChain, root))
}
possibleIntermediates, failedIntermediate, intermediateErr := opts.Intermediates.findVerifiedParents(c)
nextIntermediate:
for _, intermediateNum := range possibleIntermediates {
intermediate := opts.Intermediates.certs[intermediateNum]
for _, cert := range currentChain {
if cert == intermediate {
continue nextIntermediate
}
}
err = intermediate.isValid(intermediateCertificate, currentChain, opts)
if err != nil {
continue
}
var childChains [][]*Certificate
childChains, ok := cache[intermediateNum]
if !ok {
childChains, err = intermediate.buildChains(cache, appendToFreshChain(currentChain, intermediate), opts)
cache[intermediateNum] = childChains
}
chains = append(chains, childChains...)
}
if len(chains) > 0 {
err = nil
}
if len(chains) == 0 && err == nil {
hintErr := rootErr
hintCert := failedRoot
if hintErr == nil {
hintErr = intermediateErr
hintCert = failedIntermediate
}
err = UnknownAuthorityError{c, hintErr, hintCert}
}
return
}
func matchHostnames(pattern, host string) bool {
if len(pattern) == 0 || len(host) == 0 {
return false
}
patternParts := strings.Split(pattern, ".")
hostParts := strings.Split(host, ".")
if len(patternParts) != len(hostParts) {
return false
}
for i, patternPart := range patternParts {
if patternPart == "*" {
continue
}
if patternPart != hostParts[i] {
return false
}
}
return true
}
// toLowerCaseASCII returns a lower-case version of in. See RFC 6125 6.4.1. We use
// an explicitly ASCII function to avoid any sharp corners resulting from
// performing Unicode operations on DNS labels.
func toLowerCaseASCII(in string) string {
// If the string is already lower-case then there's nothing to do.
isAlreadyLowerCase := true
for _, c := range in {
if c == utf8.RuneError {
// If we get a UTF-8 error then there might be
// upper-case ASCII bytes in the invalid sequence.
isAlreadyLowerCase = false
break
}
if 'A' <= c && c <= 'Z' {
isAlreadyLowerCase = false
break
}
}
if isAlreadyLowerCase {
return in
}
out := []byte(in)
for i, c := range out {
if 'A' <= c && c <= 'Z' {
out[i] += 'a' - 'A'
}
}
return string(out)
}
// VerifyHostname returns nil if c is a valid certificate for the named host.
// Otherwise it returns an error describing the mismatch.
func (c *Certificate) VerifyHostname(h string) error {
// IP addresses may be written in [ ].
candidateIP := h
if len(h) >= 3 && h[0] == '[' && h[len(h)-1] == ']' {
candidateIP = h[1 : len(h)-1]
}
if ip := net.ParseIP(candidateIP); ip != nil {
// We only match IP addresses against IP SANs.
// https://tools.ietf.org/html/rfc6125#appendix-B.2
for _, candidate := range c.IPAddresses {
if ip.Equal(candidate) {
return nil
}
}
return HostnameError{c, candidateIP}
}
lowered := toLowerCaseASCII(h)
if len(c.DNSNames) > 0 {
for _, match := range c.DNSNames {
if matchHostnames(toLowerCaseASCII(match), lowered) {
return nil
}
}
// If Subject Alt Name is given, we ignore the common name.
} else if matchHostnames(toLowerCaseASCII(c.Subject.CommonName), lowered) {
return nil
}
return HostnameError{c, h}
}
func checkChainForKeyUsage(chain []*Certificate, keyUsages []ExtKeyUsage) bool {
usages := make([]ExtKeyUsage, len(keyUsages))
copy(usages, keyUsages)
if len(chain) == 0 {
return false
}
usagesRemaining := len(usages)
// We walk down the list and cross out any usages that aren't supported
// by each certificate. If we cross out all the usages, then the chain
// is unacceptable.
for i := len(chain) - 1; i >= 0; i-- {
cert := chain[i]
if len(cert.ExtKeyUsage) == 0 && len(cert.UnknownExtKeyUsage) == 0 {
// The certificate doesn't have any extended key usage specified.
continue
}
for _, usage := range cert.ExtKeyUsage {
if usage == ExtKeyUsageAny {
// The certificate is explicitly good for any usage.
continue
}
}
const invalidUsage ExtKeyUsage = -1
NextRequestedUsage:
for i, requestedUsage := range usages {
if requestedUsage == invalidUsage {
continue
}
for _, usage := range cert.ExtKeyUsage {
if requestedUsage == usage {
continue NextRequestedUsage
} else if requestedUsage == ExtKeyUsageServerAuth &&
(usage == ExtKeyUsageNetscapeServerGatedCrypto ||
usage == ExtKeyUsageMicrosoftServerGatedCrypto) {
// In order to support COMODO
// certificate chains, we have to
// accept Netscape or Microsoft SGC
// usages as equal to ServerAuth.
continue NextRequestedUsage
}
}
usages[i] = invalidUsage
usagesRemaining--
if usagesRemaining == 0 {
return false
}
}
}
return true
}

975
ct/x509/verify_test.go
View File

@ -1,975 +0,0 @@
// Copyright 2011 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
// START CT CHANGES
"src.agwa.name/ctwatch/ct/x509/pkix"
// END CT CHANGES
"encoding/pem"
"errors"
"runtime"
"strings"
"testing"
"time"
)
type verifyTest struct {
leaf string
intermediates []string
roots []string
currentTime int64
dnsName string
systemSkip bool
keyUsages []ExtKeyUsage
testSystemRootsError bool
disableTimeChecks bool
errorCallback func(*testing.T, int, error) bool
expectedChains [][]string
}
var verifyTests = []verifyTest{
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
currentTime: 1302726541,
dnsName: "www.google.com",
testSystemRootsError: true,
// Without any roots specified we should get a system roots
// error.
errorCallback: expectSystemRootsError,
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1302726541,
dnsName: "www.google.com",
expectedChains: [][]string{
{"Google", "Thawte", "VeriSign"},
},
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1302726541,
dnsName: "WwW.GooGLE.coM",
expectedChains: [][]string{
{"Google", "Thawte", "VeriSign"},
},
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1302726541,
dnsName: "www.example.com",
errorCallback: expectHostnameError,
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1,
dnsName: "www.google.com",
errorCallback: expectExpired,
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1,
dnsName: "www.google.com",
disableTimeChecks: true,
expectedChains: [][]string{
{"Google", "Thawte", "VeriSign"},
},
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 10000000000,
dnsName: "www.google.com",
errorCallback: expectExpired,
},
{
leaf: googleLeaf,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 10000000000,
dnsName: "www.google.com",
disableTimeChecks: true,
expectedChains: [][]string{
{"Google", "Thawte", "VeriSign"},
},
},
{
leaf: googleLeaf,
roots: []string{verisignRoot},
currentTime: 1302726541,
dnsName: "www.google.com",
// Skip when using systemVerify, since Windows
// *will* find the missing intermediate cert.
systemSkip: true,
errorCallback: expectAuthorityUnknown,
},
{
leaf: googleLeaf,
intermediates: []string{verisignRoot, thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1302726541,
dnsName: "www.google.com",
expectedChains: [][]string{
{"Google", "Thawte", "VeriSign"},
},
},
{
leaf: dnssecExpLeaf,
intermediates: []string{startComIntermediate},
roots: []string{startComRoot},
currentTime: 1302726541,
expectedChains: [][]string{
{"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
},
},
{
leaf: dnssecExpLeaf,
intermediates: []string{startComIntermediate, startComRoot},
roots: []string{startComRoot},
currentTime: 1302726541,
// Skip when using systemVerify, since Windows
// can only return a single chain to us (for now).
systemSkip: true,
expectedChains: [][]string{
{"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority"},
{"dnssec-exp", "StartCom Class 1", "StartCom Certification Authority", "StartCom Certification Authority"},
},
},
{
leaf: googleLeafWithInvalidHash,
intermediates: []string{thawteIntermediate},
roots: []string{verisignRoot},
currentTime: 1302726541,
dnsName: "www.google.com",
// The specific error message may not occur when using system
// verification.
systemSkip: true,
errorCallback: expectHashError,
},
{
// The default configuration should reject an S/MIME chain.
leaf: smimeLeaf,
roots: []string{smimeIntermediate},
currentTime: 1339436154,
// Key usage not implemented for Windows yet.
systemSkip: true,
errorCallback: expectUsageError,
},
{
leaf: smimeLeaf,
roots: []string{smimeIntermediate},
currentTime: 1339436154,
keyUsages: []ExtKeyUsage{ExtKeyUsageServerAuth},
// Key usage not implemented for Windows yet.
systemSkip: true,
errorCallback: expectUsageError,
},
{
leaf: smimeLeaf,
roots: []string{smimeIntermediate},
currentTime: 1339436154,
keyUsages: []ExtKeyUsage{ExtKeyUsageEmailProtection},
// Key usage not implemented for Windows yet.
systemSkip: true,
expectedChains: [][]string{
{"Ryan Hurst", "GlobalSign PersonalSign 2 CA - G2"},
},
},
{
leaf: megaLeaf,
intermediates: []string{comodoIntermediate1},
roots: []string{comodoRoot},
currentTime: 1360431182,
// CryptoAPI can find alternative validation paths so we don't
// perform this test with system validation.
systemSkip: true,
expectedChains: [][]string{
{"mega.co.nz", "EssentialSSL CA", "COMODO Certification Authority"},
},
},
{
// Check that a name constrained intermediate works even when
// it lists multiple constraints.
leaf: nameConstraintsLeaf,
intermediates: []string{nameConstraintsIntermediate1, nameConstraintsIntermediate2},
roots: []string{globalSignRoot},
currentTime: 1382387896,
dnsName: "secure.iddl.vt.edu",
expectedChains: [][]string{
{
"Technology-enhanced Learning and Online Strategies",
"Virginia Tech Global Qualified Server CA",
"Trusted Root CA G2",
"GlobalSign Root CA",
},
},
},
}
func expectHostnameError(t *testing.T, i int, err error) (ok bool) {
if _, ok := err.(HostnameError); !ok {
t.Errorf("#%d: error was not a HostnameError: %s", i, err)
return false
}
return true
}
func expectExpired(t *testing.T, i int, err error) (ok bool) {
if inval, ok := err.(CertificateInvalidError); !ok || inval.Reason != Expired {
t.Errorf("#%d: error was not Expired: %s", i, err)
return false
}
return true
}
func expectUsageError(t *testing.T, i int, err error) (ok bool) {
if inval, ok := err.(CertificateInvalidError); !ok || inval.Reason != IncompatibleUsage {
t.Errorf("#%d: error was not IncompatibleUsage: %s", i, err)
return false
}
return true
}
func expectAuthorityUnknown(t *testing.T, i int, err error) (ok bool) {
if _, ok := err.(UnknownAuthorityError); !ok {
t.Errorf("#%d: error was not UnknownAuthorityError: %s", i, err)
return false
}
return true
}
func expectSystemRootsError(t *testing.T, i int, err error) bool {
if _, ok := err.(SystemRootsError); !ok {
t.Errorf("#%d: error was not SystemRootsError: %s", i, err)
return false
}
return true
}
func expectHashError(t *testing.T, i int, err error) bool {
if err == nil {
t.Errorf("#%d: no error resulted from invalid hash", i)
return false
}
if expected := "algorithm unimplemented"; !strings.Contains(err.Error(), expected) {
t.Errorf("#%d: error resulting from invalid hash didn't contain '%s', rather it was: %s", i, expected, err)
return false
}
return true
}
func certificateFromPEM(pemBytes string) (*Certificate, error) {
block, _ := pem.Decode([]byte(pemBytes))
if block == nil {
return nil, errors.New("failed to decode PEM")
}
return ParseCertificate(block.Bytes)
}
func testVerify(t *testing.T, useSystemRoots bool) {
for i, test := range verifyTests {
if useSystemRoots && test.systemSkip {
continue
}
if runtime.GOOS == "windows" && test.testSystemRootsError {
continue
}
opts := VerifyOptions{
Intermediates: NewCertPool(),
DNSName: test.dnsName,
CurrentTime: time.Unix(test.currentTime, 0),
KeyUsages: test.keyUsages,
DisableTimeChecks: test.disableTimeChecks,
}
if !useSystemRoots {
opts.Roots = NewCertPool()
for j, root := range test.roots {
ok := opts.Roots.AppendCertsFromPEM([]byte(root))
if !ok {
t.Errorf("#%d: failed to parse root #%d", i, j)
return
}
}
}
for j, intermediate := range test.intermediates {
ok := opts.Intermediates.AppendCertsFromPEM([]byte(intermediate))
if !ok {
t.Errorf("#%d: failed to parse intermediate #%d", i, j)
return
}
}
leaf, err := certificateFromPEM(test.leaf)
if err != nil {
t.Errorf("#%d: failed to parse leaf: %s", i, err)
return
}
var oldSystemRoots *CertPool
if test.testSystemRootsError {
oldSystemRoots = systemRootsPool()
systemRoots = nil
opts.Roots = nil
}
chains, err := leaf.Verify(opts)
if test.testSystemRootsError {
systemRoots = oldSystemRoots
}
if test.errorCallback == nil && err != nil {
t.Errorf("#%d: unexpected error: %s", i, err)
}
if test.errorCallback != nil {
if !test.errorCallback(t, i, err) {
return
}
}
if len(chains) != len(test.expectedChains) {
t.Errorf("#%d: wanted %d chains, got %d", i, len(test.expectedChains), len(chains))
}
// We check that each returned chain matches a chain from
// expectedChains but an entry in expectedChains can't match
// two chains.
seenChains := make([]bool, len(chains))
NextOutputChain:
for _, chain := range chains {
TryNextExpected:
for j, expectedChain := range test.expectedChains {
if seenChains[j] {
continue
}
if len(chain) != len(expectedChain) {
continue
}
for k, cert := range chain {
if strings.Index(nameToKey(&cert.Subject), expectedChain[k]) == -1 {
continue TryNextExpected
}
}
// we matched
seenChains[j] = true
continue NextOutputChain
}
t.Errorf("#%d: No expected chain matched %s", i, chainToDebugString(chain))
}
}
}
func TestGoVerify(t *testing.T) {
testVerify(t, false)
}
func TestSystemVerify(t *testing.T) {
if runtime.GOOS != "windows" {
t.Skipf("skipping verify test using system APIs on %q", runtime.GOOS)
}
testVerify(t, true)
}
func chainToDebugString(chain []*Certificate) string {
var chainStr string
for _, cert := range chain {
if len(chainStr) > 0 {
chainStr += " -> "
}
chainStr += nameToKey(&cert.Subject)
}
return chainStr
}
func nameToKey(name *pkix.Name) string {
return strings.Join(name.Country, ",") + "/" + strings.Join(name.Organization, ",") + "/" + strings.Join(name.OrganizationalUnit, ",") + "/" + name.CommonName
}
const verisignRoot = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
const thawteIntermediate = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
const googleLeaf = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
// googleLeafWithInvalidHash is the same as googleLeaf, but the signature
// algorithm in the certificate contains a nonsense OID.
const googleLeafWithInvalidHash = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const dnssecExpLeaf = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const startComIntermediate = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const startComRoot = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const startComRootSHA256 = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const smimeLeaf = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
const smimeIntermediate = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
var megaLeaf = `-----BEGIN CERTIFICATE-----
MIIFOjCCBCKgAwIBAgIQWYE8Dup170kZ+k11Lg51OjANBgkqhkiG9w0BAQUFADBy
MQswCQYDVQQGEwJHQjEbMBkGA1UECBMSR3JlYXRlciBNYW5jaGVzdGVyMRAwDgYD
VQQHEwdTYWxmb3JkMRowGAYDVQQKExFDT01PRE8gQ0EgTGltaXRlZDEYMBYGA1UE
AxMPRXNzZW50aWFsU1NMIENBMB4XDTEyMTIxNDAwMDAwMFoXDTE0MTIxNDIzNTk1
OVowfzEhMB8GA1UECxMYRG9tYWluIENvbnRyb2wgVmFsaWRhdGVkMS4wLAYDVQQL
EyVIb3N0ZWQgYnkgSW5zdHJhIENvcnBvcmF0aW9uIFB0eS4gTFREMRUwEwYDVQQL
EwxFc3NlbnRpYWxTU0wxEzARBgNVBAMTCm1lZ2EuY28ubnowggEiMA0GCSqGSIb3
DQEBAQUAA4IBDwAwggEKAoIBAQDcxMCClae8BQIaJHBUIVttlLvhbK4XhXPk3RQ3
G5XA6tLZMBQ33l3F9knYJ0YErXtr8IdfYoulRQFmKFMJl9GtWyg4cGQi2Rcr5VN5
S5dA1vu4oyJBxE9fPELcK6Yz1vqaf+n6za+mYTiQYKggVdS8/s8hmNuXP9Zk1pIn
+q0pGsf8NAcSHMJgLqPQrTDw+zae4V03DvcYfNKjuno88d2226ld7MAmQZ7uRNsI
/CnkdelVs+akZsXf0szefSqMJlf08SY32t2jj4Ra7RApVYxOftD9nij/aLfuqOU6
ow6IgIcIG2ZvXLZwK87c5fxL7UAsTTV+M1sVv8jA33V2oKLhAgMBAAGjggG9MIIB
uTAfBgNVHSMEGDAWgBTay+qtWwhdzP/8JlTOSeVVxjj0+DAdBgNVHQ4EFgQUmP9l
6zhyrZ06Qj4zogt+6LKFk4AwDgYDVR0PAQH/BAQDAgWgMAwGA1UdEwEB/wQCMAAw
NAYDVR0lBC0wKwYIKwYBBQUHAwEGCCsGAQUFBwMCBgorBgEEAYI3CgMDBglghkgB
hvhCBAEwTwYDVR0gBEgwRjA6BgsrBgEEAbIxAQICBzArMCkGCCsGAQUFBwIBFh1o
dHRwczovL3NlY3VyZS5jb21vZG8uY29tL0NQUzAIBgZngQwBAgEwOwYDVR0fBDQw
MjAwoC6gLIYqaHR0cDovL2NybC5jb21vZG9jYS5jb20vRXNzZW50aWFsU1NMQ0Eu
Y3JsMG4GCCsGAQUFBwEBBGIwYDA4BggrBgEFBQcwAoYsaHR0cDovL2NydC5jb21v
ZG9jYS5jb20vRXNzZW50aWFsU1NMQ0FfMi5jcnQwJAYIKwYBBQUHMAGGGGh0dHA6
Ly9vY3NwLmNvbW9kb2NhLmNvbTAlBgNVHREEHjAcggptZWdhLmNvLm56gg53d3cu
bWVnYS5jby5uejANBgkqhkiG9w0BAQUFAAOCAQEAcYhrsPSvDuwihMOh0ZmRpbOE
Gw6LqKgLNTmaYUPQhzi2cyIjhUhNvugXQQlP5f0lp5j8cixmArafg1dTn4kQGgD3
ivtuhBTgKO1VYB/VRoAt6Lmswg3YqyiS7JiLDZxjoV7KoS5xdiaINfHDUaBBY4ZH
j2BUlPniNBjCqXe/HndUTVUewlxbVps9FyCmH+C4o9DWzdGBzDpCkcmo5nM+cp7q
ZhTIFTvZfo3zGuBoyu8BzuopCJcFRm3cRiXkpI7iOMUIixO1szkJS6WpL1sKdT73
UXp08U0LBqoqG130FbzEJBBV3ixbvY6BWMHoCWuaoF12KJnC5kHt2RoWAAgMXA==
-----END CERTIFICATE-----`
var comodoIntermediate1 = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
var comodoRoot = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
var nameConstraintsLeaf = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
var nameConstraintsIntermediate1 = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
var nameConstraintsIntermediate2 = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
var globalSignRoot = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`

1644
ct/x509/x509.go
View File

File diff suppressed because it is too large Load Diff

751
ct/x509/x509_test.go
View File

@ -1,751 +0,0 @@
// Copyright 2009 The Go Authors. All rights reserved.
// Use of this source code is governed by a BSD-style
// license that can be found in the LICENSE file.
package x509
import (
"bytes"
"crypto/dsa"
"crypto/ecdsa"
"crypto/elliptic"
"crypto/rand"
"crypto/rsa"
_ "crypto/sha256"
_ "crypto/sha512"
// START CT CHANGES
"src.agwa.name/ctwatch/ct/asn1"
"src.agwa.name/ctwatch/ct/x509/pkix"
// END CT CHANGES
"encoding/base64"
"encoding/hex"
"encoding/pem"
// START CT CHANGES
"errors"
// END CT CHANGES
"math/big"
"net"
"reflect"
// START CT CHANGES
"strings"
// END CT CHANGES
"testing"
"time"
)
func TestParsePKCS1PrivateKey(t *testing.T) {
block, _ := pem.Decode([]byte(pemPrivateKey))
priv, err := ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
t.Errorf("Failed to parse private key: %s", err)
return
}
if priv.PublicKey.N.Cmp(rsaPrivateKey.PublicKey.N) != 0 ||
priv.PublicKey.E != rsaPrivateKey.PublicKey.E ||
priv.D.Cmp(rsaPrivateKey.D) != 0 ||
priv.Primes[0].Cmp(rsaPrivateKey.Primes[0]) != 0 ||
priv.Primes[1].Cmp(rsaPrivateKey.Primes[1]) != 0 {
t.Errorf("got:%+v want:%+v", priv, rsaPrivateKey)
}
}
func TestParsePKIXPublicKey(t *testing.T) {
block, _ := pem.Decode([]byte(pemPublicKey))
pub, err := ParsePKIXPublicKey(block.Bytes)
if err != nil {
t.Errorf("Failed to parse RSA public key: %s", err)
return
}
rsaPub, ok := pub.(*rsa.PublicKey)
if !ok {
t.Errorf("Value returned from ParsePKIXPublicKey was not an RSA public key")
return
}
pubBytes2, err := MarshalPKIXPublicKey(rsaPub)
if err != nil {
t.Errorf("Failed to marshal RSA public key for the second time: %s", err)
return
}
if !bytes.Equal(pubBytes2, block.Bytes) {
t.Errorf("Reserialization of public key didn't match. got %x, want %x", pubBytes2, block.Bytes)
}
}
var pemPublicKey = `-----BEGIN PUBLIC KEY-----
MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA3VoPN9PKUjKFLMwOge6+
wnDi8sbETGIx2FKXGgqtAKpzmem53kRGEQg8WeqRmp12wgp74TGpkEXsGae7RS1k
enJCnma4fii+noGH7R0qKgHvPrI2Bwa9hzsH8tHxpyM3qrXslOmD45EH9SxIDUBJ
FehNdaPbLP1gFyahKMsdfxFJLUvbUycuZSJ2ZnIgeVxwm4qbSvZInL9Iu4FzuPtg
fINKcbbovy1qq4KvPIrXzhbY3PWDc6btxCf3SE0JdE1MCPThntB62/bLMSQ7xdDR
FF53oIpvxe/SCOymfWq/LW849Ytv3Xwod0+wzAP8STXG4HSELS4UedPYeHJJJYcZ
+QIDAQAB
-----END PUBLIC KEY-----
`
var pemPrivateKey = `-----BEGIN RSA PRIVATE KEY-----
MIIBOgIBAAJBALKZD0nEffqM1ACuak0bijtqE2QrI/KLADv7l3kK3ppMyCuLKoF0
fd7Ai2KW5ToIwzFofvJcS/STa6HA5gQenRUCAwEAAQJBAIq9amn00aS0h/CrjXqu
/ThglAXJmZhOMPVn4eiu7/ROixi9sex436MaVeMqSNf7Ex9a8fRNfWss7Sqd9eWu
RTUCIQDasvGASLqmjeffBNLTXV2A5g4t+kLVCpsEIZAycV5GswIhANEPLmax0ME/
EO+ZJ79TJKN5yiGBRsv5yvx5UiHxajEXAiAhAol5N4EUyq6I9w1rYdhPMGpLfk7A
IU2snfRJ6Nq2CQIgFrPsWRCkV+gOYcajD17rEqmuLrdIRexpg8N1DOSXoJ8CIGlS
tAboUGBxTDq3ZroNism3DaMIbKPyYrAqhKov1h5V
-----END RSA PRIVATE KEY-----
`
func bigFromString(s string) *big.Int {
ret := new(big.Int)
ret.SetString(s, 10)
return ret
}
func fromBase10(base10 string) *big.Int {
i := new(big.Int)
i.SetString(base10, 10)
return i
}
func bigFromHexString(s string) *big.Int {
ret := new(big.Int)
ret.SetString(s, 16)
return ret
}
var rsaPrivateKey = &rsa.PrivateKey{
PublicKey: rsa.PublicKey{
N: bigFromString("9353930466774385905609975137998169297361893554149986716853295022578535724979677252958524466350471210367835187480748268864277464700638583474144061408845077"),
E: 65537,
},
D: bigFromString("7266398431328116344057699379749222532279343923819063639497049039389899328538543087657733766554155839834519529439851673014800261285757759040931985506583861"),
Primes: []*big.Int{
bigFromString("98920366548084643601728869055592650835572950932266967461790948584315647051443"),
bigFromString("94560208308847015747498523884063394671606671904944666360068158221458669711639"),
},
}
func TestMarshalRSAPrivateKey(t *testing.T) {
priv := &rsa.PrivateKey{
PublicKey: rsa.PublicKey{
N: fromBase10("16346378922382193400538269749936049106320265317511766357599732575277382844051791096569333808598921852351577762718529818072849191122419410612033592401403764925096136759934497687765453905884149505175426053037420486697072448609022753683683718057795566811401938833367954642951433473337066311978821180526439641496973296037000052546108507805269279414789035461158073156772151892452251106173507240488993608650881929629163465099476849643165682709047462010581308719577053905787496296934240246311806555924593059995202856826239801816771116902778517096212527979497399966526283516447337775509777558018145573127308919204297111496233"),
E: 3,
},
D: fromBase10("10897585948254795600358846499957366070880176878341177571733155050184921896034527397712889205732614568234385175145686545381899460748279607074689061600935843283397424506622998458510302603922766336783617368686090042765718290914099334449154829375179958369993407724946186243249568928237086215759259909861748642124071874879861299389874230489928271621259294894142840428407196932444474088857746123104978617098858619445675532587787023228852383149557470077802718705420275739737958953794088728369933811184572620857678792001136676902250566845618813972833750098806496641114644760255910789397593428910198080271317419213080834885003"),
Primes: []*big.Int{
fromBase10("1025363189502892836833747188838978207017355117492483312747347695538428729137306368764177201532277413433182799108299960196606011786562992097313508180436744488171474690412562218914213688661311117337381958560443"),
fromBase10("3467903426626310123395340254094941045497208049900750380025518552334536945536837294961497712862519984786362199788654739924501424784631315081391467293694361474867825728031147665777546570788493758372218019373"),
fromBase10("4597024781409332673052708605078359346966325141767460991205742124888960305710298765592730135879076084498363772408626791576005136245060321874472727132746643162385746062759369754202494417496879741537284589047"),
},
}
derBytes := MarshalPKCS1PrivateKey(priv)
priv2, err := ParsePKCS1PrivateKey(derBytes)
if err != nil {
t.Errorf("error parsing serialized key: %s", err)
return
}
if priv.PublicKey.N.Cmp(priv2.PublicKey.N) != 0 ||
priv.PublicKey.E != priv2.PublicKey.E ||
priv.D.Cmp(priv2.D) != 0 ||
len(priv2.Primes) != 3 ||
priv.Primes[0].Cmp(priv2.Primes[0]) != 0 ||
priv.Primes[1].Cmp(priv2.Primes[1]) != 0 ||
priv.Primes[2].Cmp(priv2.Primes[2]) != 0 {
t.Errorf("got:%+v want:%+v", priv, priv2)
}
}
type matchHostnamesTest struct {
pattern, host string
ok bool
}
var matchHostnamesTests = []matchHostnamesTest{
{"a.b.c", "a.b.c", true},
{"a.b.c", "b.b.c", false},
{"", "b.b.c", false},
{"a.b.c", "", false},
{"example.com", "example.com", true},
{"example.com", "www.example.com", false},
{"*.example.com", "www.example.com", true},
{"*.example.com", "xyz.www.example.com", false},
{"*.*.example.com", "xyz.www.example.com", true},
{"*.www.*.com", "xyz.www.example.com", true},
}
func TestMatchHostnames(t *testing.T) {
for i, test := range matchHostnamesTests {
r := matchHostnames(test.pattern, test.host)
if r != test.ok {
t.Errorf("#%d mismatch got: %t want: %t", i, r, test.ok)
}
}
}
func TestMatchIP(t *testing.T) {
// Check that pattern matching is working.
c := &Certificate{
DNSNames: []string{"*.foo.bar.baz"},
Subject: pkix.Name{
CommonName: "*.foo.bar.baz",
},
}
err := c.VerifyHostname("quux.foo.bar.baz")
if err != nil {
t.Fatalf("VerifyHostname(quux.foo.bar.baz): %v", err)
}
// But check that if we change it to be matching against an IP address,
// it is rejected.
c = &Certificate{
DNSNames: []string{"*.2.3.4"},
Subject: pkix.Name{
CommonName: "*.2.3.4",
},
}
err = c.VerifyHostname("1.2.3.4")
if err == nil {
t.Fatalf("VerifyHostname(1.2.3.4) should have failed, did not")
}
c = &Certificate{
IPAddresses: []net.IP{net.ParseIP("127.0.0.1"), net.ParseIP("::1")},
}
err = c.VerifyHostname("127.0.0.1")
if err != nil {
t.Fatalf("VerifyHostname(127.0.0.1): %v", err)
}
err = c.VerifyHostname("::1")
if err != nil {
t.Fatalf("VerifyHostname(::1): %v", err)
}
err = c.VerifyHostname("[::1]")
if err != nil {
t.Fatalf("VerifyHostname([::1]): %v", err)
}
}
func TestCertificateParse(t *testing.T) {
s, _ := hex.DecodeString(certBytes)
certs, err := ParseCertificates(s)
if err != nil {
t.Error(err)
}
if len(certs) != 2 {
t.Errorf("Wrong number of certs: got %d want 2", len(certs))
return
}
err = certs[0].CheckSignatureFrom(certs[1])
if err != nil {
t.Error(err)
}
if err := certs[0].VerifyHostname("mail.google.com"); err != nil {
t.Error(err)
}
const expectedExtensions = 4
if n := len(certs[0].Extensions); n != expectedExtensions {
t.Errorf("want %d extensions, got %d", expectedExtensions, n)
}
}
var certBytes = "308203223082028ba00302010202106edf0d9499fd4533dd1297fc42a93be1300d06092a864886" +
"f70d0101050500304c310b3009060355040613025a4131253023060355040a131c546861777465" +
"20436f6e73756c74696e67202850747929204c74642e311630140603550403130d546861777465" +
"20534743204341301e170d3039303332353136343932395a170d3130303332353136343932395a" +
"3069310b3009060355040613025553311330110603550408130a43616c69666f726e6961311630" +
"140603550407130d4d6f756e7461696e205669657731133011060355040a130a476f6f676c6520" +
"496e63311830160603550403130f6d61696c2e676f6f676c652e636f6d30819f300d06092a8648" +
"86f70d010101050003818d0030818902818100c5d6f892fccaf5614b064149e80a2c9581a218ef" +
"41ec35bd7a58125ae76f9ea54ddc893abbeb029f6b73616bf0ffd868791fba7af9c4aebf3706ba" +
"3eeaeed27435b4ddcfb157c05f351d66aa87fee0de072d66d773affbd36ab78bef090e0cc861a9" +
"03ac90dd98b51c9c41566c017f0beec3bff391051ffba0f5cc6850ad2a590203010001a381e730" +
"81e430280603551d250421301f06082b0601050507030106082b06010505070302060960864801" +
"86f842040130360603551d1f042f302d302ba029a0278625687474703a2f2f63726c2e74686177" +
"74652e636f6d2f54686177746553474343412e63726c307206082b060105050701010466306430" +
"2206082b060105050730018616687474703a2f2f6f6373702e7468617774652e636f6d303e0608" +
"2b060105050730028632687474703a2f2f7777772e7468617774652e636f6d2f7265706f736974" +
"6f72792f5468617774655f5347435f43412e637274300c0603551d130101ff04023000300d0609" +
"2a864886f70d01010505000381810062f1f3050ebc105e497c7aedf87e24d2f4a986bb3b837bd1" +
"9b91ebcad98b065992f6bd2b49b7d6d3cb2e427a99d606c7b1d46352527fac39e6a8b6726de5bf" +
"70212a52cba07634a5e332011bd1868e78eb5e3c93cf03072276786f207494feaa0ed9d53b2110" +
"a76571f90209cdae884385c882587030ee15f33d761e2e45a6bc308203233082028ca003020102" +
"020430000002300d06092a864886f70d0101050500305f310b3009060355040613025553311730" +
"15060355040a130e566572695369676e2c20496e632e31373035060355040b132e436c61737320" +
"33205075626c6963205072696d6172792043657274696669636174696f6e20417574686f726974" +
"79301e170d3034303531333030303030305a170d3134303531323233353935395a304c310b3009" +
"060355040613025a4131253023060355040a131c54686177746520436f6e73756c74696e672028" +
"50747929204c74642e311630140603550403130d5468617774652053474320434130819f300d06" +
"092a864886f70d010101050003818d0030818902818100d4d367d08d157faecd31fe7d1d91a13f" +
"0b713cacccc864fb63fc324b0794bd6f80ba2fe10493c033fc093323e90b742b71c403c6d2cde2" +
"2ff50963cdff48a500bfe0e7f388b72d32de9836e60aad007bc4644a3b847503f270927d0e62f5" +
"21ab693684317590f8bfc76c881b06957cc9e5a8de75a12c7a68dfd5ca1c875860190203010001" +
"a381fe3081fb30120603551d130101ff040830060101ff020100300b0603551d0f040403020106" +
"301106096086480186f842010104040302010630280603551d110421301fa41d301b3119301706" +
"035504031310507269766174654c6162656c332d313530310603551d1f042a30283026a024a022" +
"8620687474703a2f2f63726c2e766572697369676e2e636f6d2f706361332e63726c303206082b" +
"0601050507010104263024302206082b060105050730018616687474703a2f2f6f6373702e7468" +
"617774652e636f6d30340603551d25042d302b06082b0601050507030106082b06010505070302" +
"06096086480186f8420401060a6086480186f845010801300d06092a864886f70d010105050003" +
"81810055ac63eadea1ddd2905f9f0bce76be13518f93d9052bc81b774bad6950a1eededcfddb07" +
"e9e83994dcab72792f06bfab8170c4a8edea5334edef1e53d906c7562bd15cf4d18a8eb42bb137" +
"9048084225c53e8acb7feb6f04d16dc574a2f7a27c7b603c77cd0ece48027f012fb69b37e02a2a" +
"36dcd585d6ace53f546f961e05af"
func TestCreateSelfSignedCertificate(t *testing.T) {
random := rand.Reader
block, _ := pem.Decode([]byte(pemPrivateKey))
rsaPriv, err := ParsePKCS1PrivateKey(block.Bytes)
if err != nil {
t.Fatalf("Failed to parse private key: %s", err)
}
ecdsaPriv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
if err != nil {
t.Fatalf("Failed to generate ECDSA key: %s", err)
}
tests := []struct {
name string
pub, priv interface{}
checkSig bool
}{
{"RSA/RSA", &rsaPriv.PublicKey, rsaPriv, true},
{"RSA/ECDSA", &rsaPriv.PublicKey, ecdsaPriv, false},
{"ECDSA/RSA", &ecdsaPriv.PublicKey, rsaPriv, false},
{"ECDSA/ECDSA", &ecdsaPriv.PublicKey, ecdsaPriv, true},
}
testExtKeyUsage := []ExtKeyUsage{ExtKeyUsageClientAuth, ExtKeyUsageServerAuth}
testUnknownExtKeyUsage := []asn1.ObjectIdentifier{[]int{1, 2, 3}, []int{2, 59, 1}}
extraExtensionData := []byte("extra extension")
for _, test := range tests {
commonName := "test.example.com"
template := Certificate{
SerialNumber: big.NewInt(1),
Subject: pkix.Name{
CommonName: commonName,
Organization: []string{"Σ Acme Co"},
},
NotBefore: time.Unix(1000, 0),
NotAfter: time.Unix(100000, 0),
SubjectKeyId: []byte{1, 2, 3, 4},
KeyUsage: KeyUsageCertSign,
ExtKeyUsage: testExtKeyUsage,
UnknownExtKeyUsage: testUnknownExtKeyUsage,
BasicConstraintsValid: true,
IsCA: true,
OCSPServer: []string{"http://ocsp.example.com"},
IssuingCertificateURL: []string{"http://crt.example.com/ca1.crt"},
DNSNames: []string{"test.example.com"},
EmailAddresses: []string{"gopher@golang.org"},
IPAddresses: []net.IP{net.IPv4(127, 0, 0, 1).To4(), net.ParseIP("2001:4860:0:2001::68")},
PolicyIdentifiers: []asn1.ObjectIdentifier{[]int{1, 2, 3}},
PermittedDNSDomains: []string{".example.com", "example.com"},
CRLDistributionPoints: []string{"http://crl1.example.com/ca1.crl", "http://crl2.example.com/ca1.crl"},
ExtraExtensions: []pkix.Extension{
{
Id: []int{1, 2, 3, 4},
Value: extraExtensionData,
},
// This extension should override the SubjectKeyId, above.
{
Id: oidExtensionSubjectKeyId,
Critical: false,
Value: []byte{0x04, 0x04, 4, 3, 2, 1},
},
},
}
derBytes, err := CreateCertificate(random, &template, &template, test.pub, test.priv)
if err != nil {
t.Errorf("%s: failed to create certificate: %s", test.name, err)
continue
}
cert, err := ParseCertificate(derBytes)
if err != nil {
t.Errorf("%s: failed to parse certificate: %s", test.name, err)
continue
}
if len(cert.PolicyIdentifiers) != 1 || !cert.PolicyIdentifiers[0].Equal(template.PolicyIdentifiers[0]) {
t.Errorf("%s: failed to parse policy identifiers: got:%#v want:%#v", test.name, cert.PolicyIdentifiers, template.PolicyIdentifiers)
}
if len(cert.PermittedDNSDomains) != 2 || cert.PermittedDNSDomains[0] != ".example.com" || cert.PermittedDNSDomains[1] != "example.com" {
t.Errorf("%s: failed to parse name constraints: %#v", test.name, cert.PermittedDNSDomains)
}
if cert.Subject.CommonName != commonName {
t.Errorf("%s: subject wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Subject.CommonName, commonName)
}
if cert.Issuer.CommonName != commonName {
t.Errorf("%s: issuer wasn't correctly copied from the template. Got %s, want %s", test.name, cert.Issuer.CommonName, commonName)
}
if !reflect.DeepEqual(cert.ExtKeyUsage, testExtKeyUsage) {
t.Errorf("%s: extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.ExtKeyUsage, testExtKeyUsage)
}
if !reflect.DeepEqual(cert.UnknownExtKeyUsage, testUnknownExtKeyUsage) {
t.Errorf("%s: unknown extkeyusage wasn't correctly copied from the template. Got %v, want %v", test.name, cert.UnknownExtKeyUsage, testUnknownExtKeyUsage)
}
if !reflect.DeepEqual(cert.OCSPServer, template.OCSPServer) {
t.Errorf("%s: OCSP servers differ from template. Got %v, want %v", test.name, cert.OCSPServer, template.OCSPServer)
}
if !reflect.DeepEqual(cert.IssuingCertificateURL, template.IssuingCertificateURL) {
t.Errorf("%s: Issuing certificate URLs differ from template. Got %v, want %v", test.name, cert.IssuingCertificateURL, template.IssuingCertificateURL)
}
if !reflect.DeepEqual(cert.DNSNames, template.DNSNames) {
t.Errorf("%s: SAN DNS names differ from template. Got %v, want %v", test.name, cert.DNSNames, template.DNSNames)
}
if !reflect.DeepEqual(cert.EmailAddresses, template.EmailAddresses) {
t.Errorf("%s: SAN emails differ from template. Got %v, want %v", test.name, cert.EmailAddresses, template.EmailAddresses)
}
if !reflect.DeepEqual(cert.IPAddresses, template.IPAddresses) {
t.Errorf("%s: SAN IPs differ from template. Got %v, want %v", test.name, cert.IPAddresses, template.IPAddresses)
}
if !reflect.DeepEqual(cert.CRLDistributionPoints, template.CRLDistributionPoints) {
t.Errorf("%s: CRL distribution points differ from template. Got %v, want %v", test.name, cert.CRLDistributionPoints, template.CRLDistributionPoints)
}
if !bytes.Equal(cert.SubjectKeyId, []byte{4, 3, 2, 1}) {
t.Errorf("%s: ExtraExtensions didn't override SubjectKeyId", test.name)
}
if bytes.Index(derBytes, extraExtensionData) == -1 {
t.Errorf("%s: didn't find extra extension in DER output", test.name)
}
if test.checkSig {
err = cert.CheckSignatureFrom(cert)
if err != nil {
t.Errorf("%s: signature verification failed: %s", test.name, err)
}
}
}
}
// Self-signed certificate using ECDSA with SHA1 & secp256r1
var ecdsaSHA1CertPem = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
// Self-signed certificate using ECDSA with SHA256 & secp256r1
var ecdsaSHA256p256CertPem = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
// Self-signed certificate using ECDSA with SHA256 & secp384r1
var ecdsaSHA256p384CertPem = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
// Self-signed certificate using ECDSA with SHA384 & secp521r1
var ecdsaSHA384p521CertPem = `
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
var ecdsaTests = []struct {
sigAlgo SignatureAlgorithm
pemCert string
}{
{ECDSAWithSHA1, ecdsaSHA1CertPem},
{ECDSAWithSHA256, ecdsaSHA256p256CertPem},
{ECDSAWithSHA256, ecdsaSHA256p384CertPem},
{ECDSAWithSHA384, ecdsaSHA384p521CertPem},
}
func TestECDSA(t *testing.T) {
for i, test := range ecdsaTests {
pemBlock, _ := pem.Decode([]byte(test.pemCert))
cert, err := ParseCertificate(pemBlock.Bytes)
if err != nil {
t.Errorf("%d: failed to parse certificate: %s", i, err)
continue
}
if sa := cert.SignatureAlgorithm; sa != test.sigAlgo {
t.Errorf("%d: signature algorithm is %v, want %v", i, sa, test.sigAlgo)
}
if parsedKey, ok := cert.PublicKey.(*ecdsa.PublicKey); !ok {
t.Errorf("%d: wanted an ECDSA public key but found: %#v", i, parsedKey)
}
if pka := cert.PublicKeyAlgorithm; pka != ECDSA {
t.Errorf("%d: public key algorithm is %v, want ECDSA", i, pka)
}
if err = cert.CheckSignatureFrom(cert); err != nil {
t.Errorf("%d: certificate verification failed: %s", i, err)
}
}
}
// Self-signed certificate using DSA with SHA1
var dsaCertPem = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----
`
func TestParseCertificateWithDsaPublicKey(t *testing.T) {
expectedKey := &dsa.PublicKey{
Parameters: dsa.Parameters{
P: bigFromHexString("00BC84B52743B169158BB85974E3E832AF5EFCFC42B264349095313A4A013EEE069A1B937D92E51ACF297A1C77880DF25C8607D8204B4DC45651305EF4A63B40C7D8C42D91EDA397D8F51CBC9D0A531FE2C6F1E55E9357D205C39D395358968CBEDAC11320C607BE16CB9DB492B6E78163305A34DD99CE43C64927D13A0040EB97"),
Q: bigFromHexString("009A67067F66A323F5D4EC7902C73FE5D9E36FA74F"),
G: bigFromHexString("009147778295BF5893542BC41BA806898A29E43261DBC85441C37D92E97ED80D323D44825FDDE8374D0FF15877798812682599B216BBCC31B9DCCAD527465FEAFFD7FC2A193612E575E34E7A98AF4D10339FE47390A518CB9975B3160B1D0285D1418D0977C52994F43C29A053E3D685834104C9FAFDC221E38BE9F3989D7A8E42"),
},
Y: bigFromHexString("59A27C269FCDE45AA2160A5C980C19211A820095091AB9C5DC8309AB7EC1B3A48C2E267C6D35FEE9B71BCBB92F16AC8E559129347FB5C00BEEDD10BA8915C90698755CA965735A32DC7575BED806E1E38F768FFBC24E41123DC73F1C6E9E4D0C9E692128853AFE29DC665FA993DCA9C903B7BF00B6442B9A76A5DADC6186317A"),
}
pemBlock, _ := pem.Decode([]byte(dsaCertPem))
cert, err := ParseCertificate(pemBlock.Bytes)
if err != nil {
t.Fatalf("Failed to parse certificate: %s", err)
}
if cert.PublicKeyAlgorithm != DSA {
t.Errorf("Parsed key algorithm was not DSA")
}
parsedKey, ok := cert.PublicKey.(*dsa.PublicKey)
if !ok {
t.Fatalf("Parsed key was not a DSA key: %s", err)
}
if expectedKey.Y.Cmp(parsedKey.Y) != 0 ||
expectedKey.P.Cmp(parsedKey.P) != 0 ||
expectedKey.Q.Cmp(parsedKey.Q) != 0 ||
expectedKey.G.Cmp(parsedKey.G) != 0 {
t.Fatal("Parsed key differs from expected key")
}
}
func TestParseCertificateWithDSASignatureAlgorithm(t *testing.T) {
pemBlock, _ := pem.Decode([]byte(dsaCertPem))
cert, err := ParseCertificate(pemBlock.Bytes)
if err != nil {
t.Fatalf("Failed to parse certificate: %s", err)
}
if cert.SignatureAlgorithm != DSAWithSHA1 {
t.Errorf("Parsed signature algorithm was not DSAWithSHA1")
}
}
func TestVerifyCertificateWithDSASignature(t *testing.T) {
pemBlock, _ := pem.Decode([]byte(dsaCertPem))
cert, err := ParseCertificate(pemBlock.Bytes)
if err != nil {
t.Fatalf("Failed to parse certificate: %s", err)
}
// test cert is self-signed
if err = cert.CheckSignatureFrom(cert); err != nil {
t.Fatalf("DSA Certificate verification failed: %s", err)
}
}
const pemCertificate = `-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----`
func TestCRLCreation(t *testing.T) {
block, _ := pem.Decode([]byte(pemPrivateKey))
priv, _ := ParsePKCS1PrivateKey(block.Bytes)
block, _ = pem.Decode([]byte(pemCertificate))
cert, _ := ParseCertificate(block.Bytes)
now := time.Unix(1000, 0)
expiry := time.Unix(10000, 0)
revokedCerts := []pkix.RevokedCertificate{
{
SerialNumber: big.NewInt(1),
RevocationTime: now,
},
{
SerialNumber: big.NewInt(42),
RevocationTime: now,
},
}
crlBytes, err := cert.CreateCRL(rand.Reader, priv, revokedCerts, now, expiry)
if err != nil {
t.Errorf("error creating CRL: %s", err)
}
_, err = ParseDERCRL(crlBytes)
if err != nil {
t.Errorf("error reparsing CRL: %s", err)
}
}
func fromBase64(in string) []byte {
out := make([]byte, base64.StdEncoding.DecodedLen(len(in)))
_, err := base64.StdEncoding.Decode(out, []byte(in))
if err != nil {
panic("failed to base64 decode")
}
return out
}
func TestParseDERCRL(t *testing.T) {
derBytes := fromBase64(derCRLBase64)
certList, err := ParseDERCRL(derBytes)
if err != nil {
t.Errorf("error parsing: %s", err)
return
}
numCerts := len(certList.TBSCertList.RevokedCertificates)
expected := 88
if numCerts != expected {
t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
}
if certList.HasExpired(time.Unix(1302517272, 0)) {
t.Errorf("CRL has expired (but shouldn't have)")
}
// Can't check the signature here without a package cycle.
}
func TestParsePEMCRL(t *testing.T) {
pemBytes := fromBase64(pemCRLBase64)
certList, err := ParseCRL(pemBytes)
if err != nil {
t.Errorf("error parsing: %s", err)
return
}
numCerts := len(certList.TBSCertList.RevokedCertificates)
expected := 2
if numCerts != expected {
t.Errorf("bad number of revoked certificates. got: %d want: %d", numCerts, expected)
}
if certList.HasExpired(time.Unix(1302517272, 0)) {
t.Errorf("CRL has expired (but shouldn't have)")
}
// Can't check the signature here without a package cycle.
}
// START CT CHANGES
func TestNonFatalErrors(t *testing.T) {
nfe := NonFatalErrors{}
nfe.AddError(errors.New("one"))
nfe.AddError(errors.New("two"))
nfe.AddError(errors.New("three"))
if !nfe.HasError() {
t.Fatal("NonFatalError claimed not to have an error")
}
if !strings.Contains(nfe.Error(), "one; two; three") {
t.Fatalf("Didn't see expected string from Error(), got '%s'", nfe.Error())
}
}
// END CT CHANGES
const derCRLBase64 = "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"
const pemCRLBase64 = "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"

198
dnsnames.go
View File

@ -1,198 +0,0 @@
package ctwatch
import (
"fmt"
"errors"
"bytes"
"encoding/binary"
"encoding/asn1"
"crypto/x509/pkix"
)
var (
oidExtensionSubjectAltName = []int{2, 5, 29, 17}
oidCommonName = []int{2, 5, 4, 3}
)
type rdnSequence []relativeDistinguishedNameSET
type relativeDistinguishedNameSET []attributeTypeAndValue
type attributeTypeAndValue struct {
Type asn1.ObjectIdentifier
Value asn1.RawValue
}
type tbsCertificate struct {
Version int `asn1:"optional,explicit,default:1,tag:0"`
SerialNumber asn1.RawValue
SignatureAlgorithm asn1.RawValue
Issuer asn1.RawValue
Validity asn1.RawValue
Subject asn1.RawValue
PublicKey asn1.RawValue
UniqueId asn1.BitString `asn1:"optional,tag:1"`
SubjectUniqueId asn1.BitString `asn1:"optional,tag:2"`
Extensions []pkix.Extension `asn1:"optional,explicit,tag:3"`
}
type certificate struct {
TBSCertificate asn1.RawValue
SignatureAlgorithm asn1.RawValue
SignatureValue asn1.RawValue
}
func stringFromByteSlice (chars []byte) string {
runes := make([]rune, len(chars))
for i, ch := range chars {
runes[i] = rune(ch)
}
return string(runes)
}
func stringFromUint16Slice (chars []uint16) string {
runes := make([]rune, len(chars))
for i, ch := range chars {
runes[i] = rune(ch)
}
return string(runes)
}
func stringFromUint32Slice (chars []uint32) string {
runes := make([]rune, len(chars))
for i, ch := range chars {
runes[i] = rune(ch)
}
return string(runes)
}
func decodeString (value *asn1.RawValue) (string, error) {
if !value.IsCompound && value.Class == 0 {
if value.Tag == 12 {
// UTF8String
return string(value.Bytes), nil
} else if value.Tag == 19 || value.Tag == 22 || value.Tag == 20 {
// * PrintableString - subset of ASCII
// * IA5String - ASCII
// * TeletexString - 8 bit charset; not quite ISO-8859-1, but often treated as such
// Don't enforce character set rules. Allow any 8 bit character, since
// CAs routinely mess this up
return stringFromByteSlice(value.Bytes), nil
} else if value.Tag == 30 {
// BMPString - Unicode, encoded in big-endian format using two octets
runes := make([]uint16, len(value.Bytes) / 2)
if err := binary.Read(bytes.NewReader(value.Bytes), binary.BigEndian, runes); err != nil {
return "", errors.New("Malformed BMPString: " + err.Error())
}
return stringFromUint16Slice(runes), nil
} else if value.Tag == 28 {
// UniversalString - Unicode, encoded in big-endian format using four octets
runes := make([]uint32, len(value.Bytes) / 4)
if err := binary.Read(bytes.NewReader(value.Bytes), binary.BigEndian, runes); err != nil {
return "", errors.New("Malformed UniversalString: " + err.Error())
}
return stringFromUint32Slice(runes), nil
}
}
return "", errors.New("Not a string")
}
func getCNs (rdns *rdnSequence) ([]string, error) {
var cns []string
for _, rdn := range *rdns {
if len(rdn) == 0 {
continue
}
atv := rdn[0]
if atv.Type.Equal(oidCommonName) {
cnString, err := decodeString(&atv.Value)
if err != nil {
return nil, errors.New("Error decoding CN: " + err.Error())
}
cns = append(cns, cnString)
}
}
return cns, nil
}
func parseSANExtension (value []byte) ([]string, error) {
var dnsNames []string
var seq asn1.RawValue
if rest, err := asn1.Unmarshal(value, &seq); err != nil {
return nil, errors.New("failed to parse subjectAltName extension: " + err.Error())
} else if len(rest) != 0 {
// Don't complain if the SAN is followed by exactly one zero byte,
// which is a common error.
if !(len(rest) == 1 && rest[0] == 0) {
return nil, fmt.Errorf("trailing data in subjectAltName extension: %v", rest)
}
}
if !seq.IsCompound || seq.Tag != 16 || seq.Class != 0 {
return nil, errors.New("failed to parse subjectAltName extension: bad SAN sequence")
}
rest := seq.Bytes
for len(rest) > 0 {
var val asn1.RawValue
var err error
rest, err = asn1.Unmarshal(rest, &val)
if err != nil {
return nil, errors.New("failed to parse subjectAltName extension item: " + err.Error())
}
switch val.Tag {
case 2:
dnsNames = append(dnsNames, string(val.Bytes))
}
}
return dnsNames, nil
}
func ExtractDNSNamesFromTBS (tbsBytes []byte) ([]string, error) {
var dnsNames []string
var tbs tbsCertificate
if rest, err := asn1.Unmarshal(tbsBytes, &tbs); err != nil {
return nil, errors.New("failed to parse TBS: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after TBS: %v", rest)
}
// Extract Common Name from Subject
var subject rdnSequence
if rest, err := asn1.Unmarshal(tbs.Subject.FullBytes, &subject); err != nil {
return nil, errors.New("failed to parse certificate subject: " + err.Error())
} else if len(rest) != 0 {
return nil, fmt.Errorf("trailing data in certificate subject: %v", rest)
}
cns, err := getCNs(&subject)
if err != nil {
return nil, errors.New("failed to process certificate subject: " + err.Error())
}
dnsNames = append(dnsNames, cns...)
// Extract DNS names from SubjectAlternativeName extension
for _, ext := range tbs.Extensions {
if ext.Id.Equal(oidExtensionSubjectAltName) {
dnsSans, err := parseSANExtension(ext.Value)
if err != nil {
return nil, err
}
dnsNames = append(dnsNames, dnsSans...)
}
}
return dnsNames, nil
}
func ExtractDNSNames (certBytes []byte) ([]string, error) {
var cert certificate
if rest, err := asn1.Unmarshal(certBytes, &cert); err != nil {
return nil, errors.New("failed to parse certificate: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after certificate: %v", rest)
}
return ExtractDNSNamesFromTBS(cert.TBSCertificate.FullBytes)
}

336
helpers.go
View File

@ -18,8 +18,6 @@ import (
"encoding/json"
"src.agwa.name/ctwatch/ct"
"src.agwa.name/ctwatch/ct/x509"
"src.agwa.name/ctwatch/ct/x509/pkix"
)
func ReadSTHFile (path string) (*ct.SignedTreeHead, error) {
@ -48,72 +46,24 @@ func WriteSTHFile (path string, sth *ct.SignedTreeHead) error {
return ioutil.WriteFile(path, sthJson, 0666)
}
func EntryDNSNames (entry *ct.LogEntry) ([]string, error) {
switch entry.Leaf.TimestampedEntry.EntryType {
case ct.X509LogEntryType:
return ExtractDNSNames(entry.Leaf.TimestampedEntry.X509Entry)
case ct.PrecertLogEntryType:
return ExtractDNSNamesFromTBS(entry.Leaf.TimestampedEntry.PrecertEntry.TBSCertificate)
}
panic("EntryDNSNames: entry is neither precert nor x509")
func IsPrecert (entry *ct.LogEntry) bool {
return entry.Leaf.TimestampedEntry.EntryType == ct.PrecertLogEntryType
}
func ParseEntryCertificate (entry *ct.LogEntry) (*x509.Certificate, error) {
if entry.Leaf.TimestampedEntry.EntryType == ct.PrecertLogEntryType {
return x509.ParseTBSCertificate(entry.Leaf.TimestampedEntry.PrecertEntry.TBSCertificate)
} else if entry.Leaf.TimestampedEntry.EntryType == ct.X509LogEntryType {
return x509.ParseCertificate(entry.Leaf.TimestampedEntry.X509Entry)
} else {
panic("ParseEntryCertificate: entry is neither precert nor x509")
func GetFullChain (entry *ct.LogEntry) [][]byte {
certs := make([][]byte, 0, len(entry.Chain) + 1)
if entry.Leaf.TimestampedEntry.EntryType == ct.X509LogEntryType {
certs = append(certs, entry.Leaf.TimestampedEntry.X509Entry)
}
}
func appendDnArray (buf *bytes.Buffer, code string, values []string) {
for _, value := range values {
if buf.Len() != 0 {
buf.WriteString(", ")
}
buf.WriteString(code)
buf.WriteString("=")
buf.WriteString(value)
}
}
func appendDnValue (buf *bytes.Buffer, code string, value string) {
if value != "" {
appendDnArray(buf, code, []string{value})
}
}
func formatDN (name pkix.Name) (string) {
// C=US, ST=UT, L=Salt Lake City, O=The USERTRUST Network, OU=http://www.usertrust.com, CN=UTN-USERFirst-Hardware
var buf bytes.Buffer
appendDnArray(&buf, "C", name.Country)
appendDnArray(&buf, "ST", name.Province)
appendDnArray(&buf, "L", name.Locality)
appendDnArray(&buf, "O", name.Organization)
appendDnArray(&buf, "OU", name.OrganizationalUnit)
appendDnValue(&buf, "CN", name.CommonName)
return buf.String()
}
func allDNSNames (cert *x509.Certificate) []string {
dnsNames := []string{}
if cert.Subject.CommonName != "" {
dnsNames = append(dnsNames, cert.Subject.CommonName)
for _, cert := range entry.Chain {
certs = append(certs, cert)
}
for _, dnsName := range cert.DNSNames {
if dnsName != cert.Subject.CommonName {
dnsNames = append(dnsNames, dnsName)
}
}
return dnsNames
return certs
}
func formatSerial (serial *big.Int) string {
func formatSerialNumber (serial *big.Int) string {
if serial != nil {
return fmt.Sprintf("%x", serial)
} else {
@ -126,91 +76,154 @@ func sha256hex (data []byte) string {
return hex.EncodeToString(sum[:])
}
func GetRawCert (entry *ct.LogEntry) []byte {
switch entry.Leaf.TimestampedEntry.EntryType {
case ct.X509LogEntryType:
return entry.Leaf.TimestampedEntry.X509Entry
case ct.PrecertLogEntryType:
return entry.Chain[0]
}
panic("GetRawCert: entry is neither precert nor x509")
}
func IsPrecert (entry *ct.LogEntry) bool {
switch entry.Leaf.TimestampedEntry.EntryType {
case ct.PrecertLogEntryType:
return true
case ct.X509LogEntryType:
return false
}
panic("IsPrecert: entry is neither precert nor x509")
}
type EntryInfo struct {
LogUri string
Entry *ct.LogEntry
ParsedCert *x509.Certificate
ParseError error
CertInfo CertInfo
Filename string
LogUri string
Entry *ct.LogEntry
IsPrecert bool
FullChain [][]byte // first entry is logged X509 cert or pre-cert
CertInfo *CertInfo
ParseError error // set iff CertInfo is nil
Filename string
}
type CertInfo struct {
DnsNames []string
SubjectDn string
IssuerDn string
Serial string
PubkeyHash string
NotBefore *time.Time
NotAfter *time.Time
TBS *TBSCertificate
DNSNames []string
DNSNamesParseError error
Subject RDNSequence
SubjectParseError error
Issuer RDNSequence
IssuerParseError error
SerialNumber *big.Int
SerialNumberParseError error
Validity *CertValidity
ValidityParseError error
Constraints *BasicConstraints
ConstraintsParseError error
}
func MakeCertInfo (cert *x509.Certificate) CertInfo {
return CertInfo {
DnsNames: allDNSNames(cert),
SubjectDn: formatDN(cert.Subject),
IssuerDn: formatDN(cert.Issuer),
Serial: formatSerial(cert.SerialNumber),
PubkeyHash: sha256hex(cert.RawSubjectPublicKeyInfo),
NotBefore: &cert.NotBefore,
NotAfter: &cert.NotAfter,
func MakeCertInfoFromTBS (tbs *TBSCertificate) *CertInfo {
info := &CertInfo{TBS: tbs}
info.DNSNames, info.DNSNamesParseError = tbs.ParseDNSNames()
info.Subject, info.SubjectParseError = tbs.ParseSubject()
info.Issuer, info.IssuerParseError = tbs.ParseIssuer()
info.SerialNumber, info.SerialNumberParseError = tbs.ParseSerialNumber()
info.Validity, info.ValidityParseError = tbs.ParseValidity()
info.Constraints, info.ConstraintsParseError = tbs.ParseBasicConstraints()
return info
}
func MakeCertInfoFromRawTBS (tbsBytes []byte) (*CertInfo, error) {
tbs, err := ParseTBSCertificate(tbsBytes)
if err != nil {
return nil, err
}
return MakeCertInfoFromTBS(tbs), nil
}
func MakeCertInfoFromRawCert (certBytes []byte) (*CertInfo, error) {
cert, err := ParseCertificate(certBytes)
if err != nil {
return nil, err
}
return MakeCertInfoFromRawTBS(cert.GetRawTBSCertificate())
}
func MakeCertInfo (entry *ct.LogEntry) (*CertInfo, error) {
switch entry.Leaf.TimestampedEntry.EntryType {
case ct.X509LogEntryType:
return MakeCertInfoFromRawCert(entry.Leaf.TimestampedEntry.X509Entry)
case ct.PrecertLogEntryType:
return MakeCertInfoFromRawTBS(entry.Leaf.TimestampedEntry.PrecertEntry.TBSCertificate)
default:
return nil, fmt.Errorf("MakeCertInfoFromCTEntry: unknown CT entry type (neither X509 nor precert)")
}
}
func (info *CertInfo) dnsNamesFriendlyString () string {
if info.DnsNames != nil {
return strings.Join(info.DnsNames, ", ")
func (info *CertInfo) dnsNamesString () string {
if info.DNSNamesParseError == nil {
return strings.Join(info.DNSNames, ", ")
} else {
return "*** UNKNOWN ***"
return ""
}
}
func (info *CertInfo) NotBefore () *time.Time {
if info.ValidityParseError == nil {
return &info.Validity.NotBefore
} else {
return nil
}
}
func (info *CertInfo) NotAfter () *time.Time {
if info.ValidityParseError == nil {
return &info.Validity.NotAfter
} else {
return nil
}
}
func (info *CertInfo) PubkeyHash () string {
return sha256hex(info.TBS.GetRawPublicKey())
}
func (info *CertInfo) Environ () []string {
var env []string
if info.DnsNames != nil { env = append(env, "DNS_NAMES=" + strings.Join(info.DnsNames, ",")) }
if info.SubjectDn != "" { env = append(env, "SUBJECT_DN=" + info.SubjectDn) }
if info.IssuerDn != "" { env = append(env, "ISSUER_DN=" + info.IssuerDn) }
if info.Serial != "" { env = append(env, "SERIAL=" + info.Serial) }
if info.PubkeyHash != "" { env = append(env, "PUBKEY_HASH=" + info.PubkeyHash) }
if info.NotBefore != nil { env = append(env, "NOT_BEFORE=" + strconv.FormatInt(info.NotBefore.Unix(), 10)) }
if info.NotAfter != nil { env = append(env, "NOT_AFTER=" + strconv.FormatInt(info.NotAfter.Unix(), 10)) }
env := make([]string, 0, 10)
env = append(env, "PUBKEY_HASH=" + info.PubkeyHash())
if info.DNSNamesParseError != nil {
env = append(env, "DNS_NAMES_PARSE_ERROR=" + info.DNSNamesParseError.Error())
} else {
env = append(env, "DNS_NAMES=" + strings.Join(info.DNSNames, ","))
}
if info.SerialNumberParseError != nil {
env = append(env, "SERIAL_PARSE_ERROR=" + info.SerialNumberParseError.Error())
} else {
env = append(env, "SERIAL=" + formatSerialNumber(info.SerialNumber))
}
if info.ValidityParseError != nil {
env = append(env, "VALIDITY_PARSE_ERROR=" + info.ValidityParseError.Error())
} else {
env = append(env, "NOT_BEFORE=" + info.Validity.NotBefore.String())
env = append(env, "NOT_BEFORE_UNIXTIME=" + strconv.FormatInt(info.Validity.NotBefore.Unix(), 10))
env = append(env, "NOT_AFTER=" + info.Validity.NotAfter.String())
env = append(env, "NOT_AFTER_UNIXTIME=" + strconv.FormatInt(info.Validity.NotAfter.Unix(), 10))
}
if info.SubjectParseError != nil {
env = append(env, "SUBJECT_PARSE_ERROR=" + info.SubjectParseError.Error())
} else {
env = append(env, "SUBJECT_DN=" + info.Subject.String())
}
if info.IssuerParseError != nil {
env = append(env, "ISSUER_PARSE_ERROR=" + info.IssuerParseError.Error())
} else {
env = append(env, "ISSUER_DN=" + info.Issuer.String())
}
return env
}
func (info *EntryInfo) GetRawCert () []byte {
return GetRawCert(info.Entry)
}
func (info *EntryInfo) Fingerprint () string {
return sha256hex(info.GetRawCert())
}
func (info *EntryInfo) IsPrecert () bool {
return IsPrecert(info.Entry)
if len(info.FullChain) > 0 {
return sha256hex(info.FullChain[0])
} else {
return ""
}
}
func (info *EntryInfo) typeString () string {
if info.IsPrecert() {
if info.IsPrecert {
return "precert"
} else {
return "cert"
@ -218,7 +231,7 @@ func (info *EntryInfo) typeString () string {
}
func (info *EntryInfo) typeFriendlyString () string {
if info.IsPrecert() {
if info.IsPrecert {
return "Pre-certificate"
} else {
return "Certificate"
@ -237,7 +250,7 @@ func (info *EntryInfo) Environ () []string {
env := []string{
"FINGERPRINT=" + info.Fingerprint(),
"CERT_TYPE=" + info.typeString(),
"CERT_PARSEABLE=" + yesnoString(info.ParsedCert != nil),
"CERT_PARSEABLE=" + yesnoString(info.ParseError == nil),
"LOG_URI=" + info.LogUri,
"ENTRY_INDEX=" + strconv.FormatInt(info.Entry.Index, 10),
}
@ -245,37 +258,44 @@ func (info *EntryInfo) Environ () []string {
if info.Filename != "" {
env = append(env, "CERT_FILENAME=" + info.Filename)
}
if info.ParseError != nil {
if info.ParseError == nil {
certEnv := info.CertInfo.Environ()
env = append(env, certEnv...)
} else {
env = append(env, "PARSE_ERROR=" + info.ParseError.Error())
}
certEnv := info.CertInfo.Environ()
env = append(env, certEnv...)
return env
}
func writeField (out io.Writer, name string, value interface{}, err error) {
if err == nil {
fmt.Fprintf(out, "\t%13s = %s\n", name, value)
} else {
fmt.Fprintf(out, "\t%13s = *** UNKNOWN (%s) ***\n", name, err)
}
}
func (info *EntryInfo) Write (out io.Writer) {
fingerprint := info.Fingerprint()
fmt.Fprintf(out, "%s:\n", fingerprint)
if info.ParseError != nil {
if info.ParsedCert != nil {
fmt.Fprintf(out, "\tParse Warning = *** %s ***\n", info.ParseError)
} else {
fmt.Fprintf(out, "\t Parse Error = *** %s ***\n", info.ParseError)
}
writeField(out, "Parse Error", "*** " + info.ParseError.Error() + " ***", nil)
} else {
writeField(out, "DNS Names", info.CertInfo.dnsNamesString(), info.CertInfo.DNSNamesParseError)
writeField(out, "Pubkey", info.CertInfo.PubkeyHash(), nil)
writeField(out, "Subject", info.CertInfo.Subject, info.CertInfo.SubjectParseError)
writeField(out, "Issuer", info.CertInfo.Issuer, info.CertInfo.IssuerParseError)
writeField(out, "Serial", info.CertInfo.SerialNumber, info.CertInfo.SerialNumberParseError)
writeField(out, "Not Before", info.CertInfo.NotBefore(), info.CertInfo.ValidityParseError)
writeField(out, "Not After", info.CertInfo.NotAfter(), info.CertInfo.ValidityParseError)
}
writeField(out, "Type", info.typeFriendlyString(), nil)
writeField(out, "Log Entry", fmt.Sprintf("%d @ %s", info.Entry.Index, info.LogUri), nil)
writeField(out, "crt.sh", "https://crt.sh/?q=" + fingerprint, nil)
if info.Filename != "" {
writeField(out, "Filename", info.Filename, nil)
}
fmt.Fprintf(out, "\t DNS Names = %s\n", info.CertInfo.dnsNamesFriendlyString())
if info.CertInfo.PubkeyHash != "" { fmt.Fprintf(out, "\t Pubkey = %s\n", info.CertInfo.PubkeyHash) }
if info.CertInfo.SubjectDn != "" { fmt.Fprintf(out, "\t Subject = %s\n", info.CertInfo.SubjectDn) }
if info.CertInfo.IssuerDn != "" { fmt.Fprintf(out, "\t Issuer = %s\n", info.CertInfo.IssuerDn) }
if info.CertInfo.Serial != "" { fmt.Fprintf(out, "\t Serial = %s\n", info.CertInfo.Serial) }
if info.CertInfo.NotBefore != nil { fmt.Fprintf(out, "\t Not Before = %s\n", *info.CertInfo.NotBefore) }
if info.CertInfo.NotAfter != nil { fmt.Fprintf(out, "\t Not After = %s\n", *info.CertInfo.NotAfter) }
fmt.Fprintf(out, "\t Type = %s\n", info.typeFriendlyString())
fmt.Fprintf(out, "\t Log Entry = %d @ %s\n", info.Entry.Index, info.LogUri)
fmt.Fprintf(out, "\t crt.sh = https://crt.sh/?q=%s\n", fingerprint)
if info.Filename != "" { fmt.Fprintf(out, "\t Filename = %s\n", info.Filename) }
}
func (info *EntryInfo) InvokeHookScript (command string) error {
@ -295,13 +315,17 @@ func (info *EntryInfo) InvokeHookScript (command string) error {
return nil
}
func WriteCertRepository (repoPath string, entry *ct.LogEntry) (bool, string, error) {
fingerprint := sha256hex(GetRawCert(entry))
func WriteCertRepository (repoPath string, isPrecert bool, certs [][]byte) (bool, string, error) {
if len(certs) == 0 {
return false, "", fmt.Errorf("Cannot write an empty certificate chain")
}
fingerprint := sha256hex(certs[0])
prefixPath := filepath.Join(repoPath, fingerprint[0:2])
var filenameSuffix string
if entry.Leaf.TimestampedEntry.EntryType == ct.PrecertLogEntryType {
if isPrecert {
filenameSuffix = ".precert.pem"
} else if entry.Leaf.TimestampedEntry.EntryType == ct.X509LogEntryType {
} else {
filenameSuffix = ".cert.pem"
}
if err := os.Mkdir(prefixPath, 0777); err != nil && !os.IsExist(err) {
@ -316,14 +340,8 @@ func WriteCertRepository (repoPath string, entry *ct.LogEntry) (bool, string, er
return false, path, fmt.Errorf("Failed to open %s for writing: %s", path, err)
}
}
if entry.Leaf.TimestampedEntry.EntryType == ct.X509LogEntryType {
if err := pem.Encode(file, &pem.Block{Type: "CERTIFICATE", Bytes: entry.Leaf.TimestampedEntry.X509Entry}); err != nil {
file.Close()
return false, path, fmt.Errorf("Error writing to %s: %s", path, err)
}
}
for _, chainCert := range entry.Chain {
if err := pem.Encode(file, &pem.Block{Type: "CERTIFICATE", Bytes: chainCert}); err != nil {
for _, cert := range certs {
if err := pem.Encode(file, &pem.Block{Type: "CERTIFICATE", Bytes: cert}); err != nil {
file.Close()
return false, path, fmt.Errorf("Error writing to %s: %s", path, err)
}

300
x509.go Normal file
View File

@ -0,0 +1,300 @@
package ctwatch
import (
"fmt"
"bytes"
"errors"
"encoding/asn1"
"math/big"
"time"
)
var (
oidExtensionSubjectAltName = asn1.ObjectIdentifier{2, 5, 29, 17}
oidExtensionBasicConstraints = asn1.ObjectIdentifier{2, 5, 29, 19}
oidCountry = asn1.ObjectIdentifier{2, 5, 4, 6}
oidOrganization = asn1.ObjectIdentifier{2, 5, 4, 10}
oidOrganizationalUnit = asn1.ObjectIdentifier{2, 5, 4, 11}
oidCommonName = asn1.ObjectIdentifier{2, 5, 4, 3}
oidSerialNumber = asn1.ObjectIdentifier{2, 5, 4, 5}
oidLocality = asn1.ObjectIdentifier{2, 5, 4, 7}
oidProvince = asn1.ObjectIdentifier{2, 5, 4, 8}
oidStreetAddress = asn1.ObjectIdentifier{2, 5, 4, 9}
oidPostalCode = asn1.ObjectIdentifier{2, 5, 4, 17}
)
type CertValidity struct {
NotBefore time.Time
NotAfter time.Time
}
type BasicConstraints struct {
IsCA bool `asn1:"optional"`
MaxPathLen int `asn1:"optional,default:-1"`
}
type Extension struct {
Id asn1.ObjectIdentifier
Critical bool `asn1:"optional"`
Value []byte
}
type RDNSequence []RelativeDistinguishedNameSET
type RelativeDistinguishedNameSET []AttributeTypeAndValue
type AttributeTypeAndValue struct {
Type asn1.ObjectIdentifier
Value asn1.RawValue
}
type TBSCertificate struct {
Raw asn1.RawContent
Version int `asn1:"optional,explicit,default:1,tag:0"`
SerialNumber asn1.RawValue
SignatureAlgorithm asn1.RawValue
Issuer asn1.RawValue
Validity asn1.RawValue
Subject asn1.RawValue
PublicKey asn1.RawValue
UniqueId asn1.BitString `asn1:"optional,tag:1"`
SubjectUniqueId asn1.BitString `asn1:"optional,tag:2"`
Extensions []Extension `asn1:"optional,explicit,tag:3"`
}
type Certificate struct {
Raw asn1.RawContent
TBSCertificate asn1.RawValue
SignatureAlgorithm asn1.RawValue
SignatureValue asn1.RawValue
}
func (rdns RDNSequence) ParseCNs () ([]string, error) {
var cns []string
for _, rdn := range rdns {
if len(rdn) == 0 {
continue
}
atv := rdn[0]
if atv.Type.Equal(oidCommonName) {
cnString, err := decodeASN1String(&atv.Value)
if err != nil {
return nil, errors.New("Error decoding CN: " + err.Error())
}
cns = append(cns, cnString)
}
}
return cns, nil
}
func rdnLabel (oid asn1.ObjectIdentifier) string {
switch {
case oid.Equal(oidCountry): return "C"
case oid.Equal(oidOrganization): return "O"
case oid.Equal(oidOrganizationalUnit): return "OU"
case oid.Equal(oidCommonName): return "CN"
case oid.Equal(oidSerialNumber): return "serialNumber"
case oid.Equal(oidLocality): return "L"
case oid.Equal(oidProvince): return "ST"
case oid.Equal(oidStreetAddress): return "street"
case oid.Equal(oidPostalCode): return "postalCode"
}
return oid.String()
}
func (rdns RDNSequence) String () string {
var buf bytes.Buffer
for _, rdn := range rdns {
if len(rdn) == 0 {
continue
}
atv := rdn[0]
if buf.Len() != 0 {
buf.WriteString(", ")
}
buf.WriteString(rdnLabel(atv.Type))
buf.WriteString("=")
valueString, err := decodeASN1String(&atv.Value)
if err == nil {
buf.WriteString(valueString)
} else {
fmt.Fprintf(&buf, "%v", atv.Value.FullBytes)
}
}
return buf.String()
}
func ParseTBSCertificate (tbsBytes []byte) (*TBSCertificate, error) {
var tbs TBSCertificate
if rest, err := asn1.Unmarshal(tbsBytes, &tbs); err != nil {
return nil, errors.New("failed to parse TBS: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after TBS: %v", rest)
}
return &tbs, nil
}
func (tbs *TBSCertificate) ParseValidity () (*CertValidity, error) {
var validity CertValidity
if rest, err := asn1.Unmarshal(tbs.Validity.FullBytes, &validity); err != nil {
return nil, errors.New("failed to parse validity: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after validity: %v", rest)
}
return &validity, nil
}
func (tbs *TBSCertificate) ParseBasicConstraints () (*BasicConstraints, error) {
constraintExts := tbs.GetExtension(oidExtensionBasicConstraints)
if len(constraintExts) == 0 {
return nil, nil
} else if len(constraintExts) > 1 {
return nil, fmt.Errorf("Certificate has more than one Basic Constraints extension")
}
var constraints BasicConstraints
if rest, err := asn1.Unmarshal(constraintExts[0].Value, &constraints); err != nil {
return nil, errors.New("failed to parse Basic Constraints: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after Basic Constraints: %v", rest)
}
return &constraints, nil
}
func (tbs *TBSCertificate) ParseSerialNumber () (*big.Int, error) {
serialNumber := big.NewInt(0)
if rest, err := asn1.Unmarshal(tbs.SerialNumber.FullBytes, &serialNumber); err != nil {
return nil, errors.New("failed to parse serial number: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after serial number: %v", rest)
}
return serialNumber, nil
}
func (tbs *TBSCertificate) GetRawPublicKey () []byte {
return tbs.PublicKey.FullBytes
}
func (tbs *TBSCertificate) GetRawSubject () []byte {
return tbs.Subject.FullBytes
}
func (tbs *TBSCertificate) GetRawIssuer () []byte {
return tbs.Issuer.FullBytes
}
func (tbs *TBSCertificate) ParseSubject () (RDNSequence, error) {
var subject RDNSequence
if rest, err := asn1.Unmarshal(tbs.GetRawSubject(), &subject); err != nil {
return nil, errors.New("failed to parse certificate subject: " + err.Error())
} else if len(rest) != 0 {
return nil, fmt.Errorf("trailing data in certificate subject: %v", rest)
}
return subject, nil
}
func (tbs *TBSCertificate) ParseIssuer () (RDNSequence, error) {
var issuer RDNSequence
if rest, err := asn1.Unmarshal(tbs.GetRawIssuer(), &issuer); err != nil {
return nil, errors.New("failed to parse certificate issuer: " + err.Error())
} else if len(rest) != 0 {
return nil, fmt.Errorf("trailing data in certificate issuer: %v", rest)
}
return issuer, nil
}
func (tbs *TBSCertificate) ParseDNSNames () ([]string, error) {
var dnsNames []string
// Extract Common Name from Subject
subject, err := tbs.ParseSubject()
if err != nil {
return nil, err
}
cns, err := subject.ParseCNs()
if err != nil {
return nil, errors.New("failed to process certificate subject: " + err.Error())
}
dnsNames = append(dnsNames, cns...)
// Extract DNS names from SubjectAlternativeName extension
for _, sanExt := range tbs.GetExtension(oidExtensionSubjectAltName) {
dnsSans, err := parseSANExtension(sanExt.Value)
if err != nil {
return nil, err
}
dnsNames = append(dnsNames, dnsSans...)
}
return dnsNames, nil
}
func (tbs *TBSCertificate) GetExtension (id asn1.ObjectIdentifier) []Extension {
var exts []Extension
for _, ext := range tbs.Extensions {
if ext.Id.Equal(id) {
exts = append(exts, ext)
}
}
return exts
}
func ParseCertificate (certBytes []byte) (*Certificate, error) {
var cert Certificate
if rest, err := asn1.Unmarshal(certBytes, &cert); err != nil {
return nil, errors.New("failed to parse certificate: " + err.Error())
} else if len(rest) > 0 {
return nil, fmt.Errorf("trailing data after certificate: %v", rest)
}
return &cert, nil
}
func (cert *Certificate) GetRawTBSCertificate () []byte {
return cert.TBSCertificate.FullBytes
}
func (cert *Certificate) ParseTBSCertificate () (*TBSCertificate, error) {
return ParseTBSCertificate(cert.GetRawTBSCertificate())
}
func parseSANExtension (value []byte) ([]string, error) {
var dnsNames []string
var seq asn1.RawValue
if rest, err := asn1.Unmarshal(value, &seq); err != nil {
return nil, errors.New("failed to parse subjectAltName extension: " + err.Error())
} else if len(rest) != 0 {
// Don't complain if the SAN is followed by exactly one zero byte,
// which is a common error.
if !(len(rest) == 1 && rest[0] == 0) {
return nil, fmt.Errorf("trailing data in subjectAltName extension: %v", rest)
}
}
if !seq.IsCompound || seq.Tag != 16 || seq.Class != 0 {
return nil, errors.New("failed to parse subjectAltName extension: bad SAN sequence")
}
rest := seq.Bytes
for len(rest) > 0 {
var val asn1.RawValue
var err error
rest, err = asn1.Unmarshal(rest, &val)
if err != nil {
return nil, errors.New("failed to parse subjectAltName extension item: " + err.Error())
}
switch val.Tag {
case 2:
dnsNames = append(dnsNames, string(val.Bytes))
}
}
return dnsNames, nil
}