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2018-09-20 01:49:47 +02:00
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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2019-01-02 01:58:10 +01:00
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* Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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2017-11-30 16:23:50 +01:00
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*/
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2015-06-05 15:58:00 +02:00
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#ifndef CURVE25519_H
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#define CURVE25519_H
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#include <stdint.h>
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#include <sys/types.h>
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enum curve25519_lengths {
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2018-09-24 22:02:13 +02:00
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CURVE25519_KEY_SIZE = 32,
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2015-06-05 15:58:00 +02:00
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};
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2018-09-24 22:02:13 +02:00
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void curve25519(uint8_t mypublic[static CURVE25519_KEY_SIZE], const uint8_t secret[static CURVE25519_KEY_SIZE], const uint8_t basepoint[static CURVE25519_KEY_SIZE]);
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void curve25519_generate_public(uint8_t pub[static CURVE25519_KEY_SIZE], const uint8_t secret[static CURVE25519_KEY_SIZE]);
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2019-01-11 10:13:35 +01:00
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static inline void curve25519_clamp_secret(uint8_t secret[static CURVE25519_KEY_SIZE])
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2015-06-05 15:58:00 +02:00
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{
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secret[0] &= 248;
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secret[31] &= 127;
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secret[31] |= 64;
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}
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#endif
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