lilcrypto/impl_poly1305.h

36 lines
1.2 KiB
C

/*
* Copyright (c) 2024 Lucas Gabriel Vuotto <lucas@lgv5.net>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "lilcrypto.h"
#define POLY1305_TAGLEN_WORDS (LC_POLY1305_TAGLEN / sizeof(uint32_t))
struct poly1305_state {
uint32_t h0, h1, h2, h3, h4;
uint32_t r0, r1, r2, r3, r4;
uint32_t x1, x2, x3, x4;
uint32_t s0, s1, s2, s3;
size_t mlen;
uint8_t m[LC_POLY1305_BLOCKLEN];
};
void poly1305_block(struct poly1305_state *, uint32_t);
void poly1305_reduce(struct poly1305_state *,
uint32_t [POLY1305_TAGLEN_WORDS]);