| /* SPDX-License-Identifier: GPL-2.0 */ |
| /* |
| * Copyright (C) 2015-2020 Jason A. Donenfeld <Jason@zx2c4.com>. All Rights Reserved. |
| */ |
| |
| #ifndef CURVE25519_H |
| #define CURVE25519_H |
| |
| #include <stdint.h> |
| #include <sys/types.h> |
| |
| enum curve25519_lengths { |
| CURVE25519_KEY_SIZE = 32 |
| }; |
| |
| 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]); |
| void curve25519_generate_public(uint8_t pub[static CURVE25519_KEY_SIZE], const uint8_t secret[static CURVE25519_KEY_SIZE]); |
| static inline void curve25519_clamp_secret(uint8_t secret[static CURVE25519_KEY_SIZE]) |
| { |
| secret[0] &= 248; |
| secret[31] = (secret[31] & 127) | 64; |
| } |
| |
| #endif |