25 lines
723 B
C
25 lines
723 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2015-2019 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved.
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*/
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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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CURVE25519_KEY_SIZE = 32
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};
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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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static inline void curve25519_clamp_secret(uint8_t secret[static CURVE25519_KEY_SIZE])
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{
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secret[0] &= 248;
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secret[31] = (secret[31] & 127) | 64;
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}
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#endif
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