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Rename MerkleTreeBuilder.size to numLeaves

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This commit is contained in:
Andrew Ayer 2017-01-05 14:41:44 -08:00
parent f920ef0ec3
commit 39737f33ec
2 changed files with 10 additions and 10 deletions
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16
auditing.go
View File

@ -33,7 +33,7 @@ func VerifyConsistencyProof(proof ct.ConsistencyProof, first *ct.SignedTreeHead,
if !(bytes.Equal(first.SHA256RootHash[:], second.SHA256RootHash[:]) && len(proof) == 0) {
return false, nil
}
return true, &MerkleTreeBuilder{stack: []ct.MerkleTreeNode{first.SHA256RootHash[:]}, size: 1}
return true, &MerkleTreeBuilder{stack: []ct.MerkleTreeNode{first.SHA256RootHash[:]}, numLeaves: 1}
}
if first.TreeSize == 0 {
// The purpose of the consistency proof is to ensure the append-only
@ -43,7 +43,7 @@ func VerifyConsistencyProof(proof ct.ConsistencyProof, first *ct.SignedTreeHead,
if len(proof) != 0 {
return false, nil
}
return true, &MerkleTreeBuilder{stack: []ct.MerkleTreeNode{}, size: 0}
return true, &MerkleTreeBuilder{stack: []ct.MerkleTreeNode{}, numLeaves: 0}
}
// Guaranteed that 0 < first.TreeSize < second.TreeSize
@ -114,7 +114,7 @@ func VerifyConsistencyProof(proof ct.ConsistencyProof, first *ct.SignedTreeHead,
reverseHashes(leftHashes)
return true, &MerkleTreeBuilder{stack: leftHashes, size: first.TreeSize}
return true, &MerkleTreeBuilder{stack: leftHashes, numLeaves: first.TreeSize}
}
func hashNothing() ct.MerkleTreeNode {
@ -138,18 +138,18 @@ func hashChildren(left ct.MerkleTreeNode, right ct.MerkleTreeNode) ct.MerkleTree
type MerkleTreeBuilder struct {
stack []ct.MerkleTreeNode
size uint64 // number of hashes added so far
numLeaves uint64 // number of hashes added so far
}
func (builder *MerkleTreeBuilder) Add(hash ct.MerkleTreeNode) {
builder.stack = append(builder.stack, hash)
builder.size++
size := builder.size
for size%2 == 0 {
builder.numLeaves++
numLeaves := builder.numLeaves
for numLeaves%2 == 0 {
left, right := builder.stack[len(builder.stack)-2], builder.stack[len(builder.stack)-1]
builder.stack = builder.stack[:len(builder.stack)-2]
builder.stack = append(builder.stack, hashChildren(left, right))
size /= 2
numLeaves /= 2
}
}

4
scanner.go
View File

@ -254,9 +254,9 @@ func (s *Scanner) MakeMerkleTreeBuilder(sth *ct.SignedTreeHead) (*MerkleTreeBuil
return nil, err
}
reverseHashes(auditPath)
builder = &MerkleTreeBuilder{size: sth.TreeSize - 1, stack: auditPath}
builder = &MerkleTreeBuilder{numLeaves: sth.TreeSize - 1, stack: auditPath}
} else {
builder = &MerkleTreeBuilder{size: 0}
builder = &MerkleTreeBuilder{numLeaves: 0}
}
builder.Add(leafHash)