From bae8844a4d4baef217be68f6d013e38faa897c98 Mon Sep 17 00:00:00 2001 From: Dmitry Baryshkov Date: Fri, 5 Jun 2020 02:27:06 +0300 Subject: Implement GOST R 34.11-2012 (Streebog) hash function Also add nettle_streebog256 and nettle_streebog512 to nettle meta interface. Signed-off-by: Dmitry Baryshkov --- streebog.h | 99 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 99 insertions(+) create mode 100644 streebog.h (limited to 'streebog.h') diff --git a/streebog.h b/streebog.h new file mode 100644 index 00000000..69ac0d5c --- /dev/null +++ b/streebog.h @@ -0,0 +1,99 @@ +/* streebog.h + + The Streebog family of hash functions. + + Copyright (C) 2020 Dmitry Baryshkov + + This file is part of GNU Nettle. + + GNU Nettle is free software: you can redistribute it and/or + modify it under the terms of either: + + * the GNU Lesser General Public License as published by the Free + Software Foundation; either version 3 of the License, or (at your + option) any later version. + + or + + * the GNU General Public License as published by the Free + Software Foundation; either version 2 of the License, or (at your + option) any later version. + + or both in parallel, as here. + + GNU Nettle is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + General Public License for more details. + + You should have received copies of the GNU General Public License and + the GNU Lesser General Public License along with this program. If + not, see http://www.gnu.org/licenses/. +*/ + +#ifndef NETTLE_STREEBOG_H_INCLUDED +#define NETTLE_STREEBOG_H_INCLUDED + +#include "nettle-types.h" + +#ifdef __cplusplus +extern "C" { +#endif + +/* Name mangling */ +#define streebog256_init nettle_streebog256_init +#define streebog256_digest nettle_streebog256_digest +#define streebog512_init nettle_streebog512_init +#define streebog512_update nettle_streebog512_update +#define streebog512_digest nettle_streebog512_digest + +/* STREEBOG512 */ + +#define STREEBOG512_DIGEST_SIZE 64 +#define STREEBOG512_BLOCK_SIZE 64 + +/* Digest is kept internally as 8 64-bit words. */ +#define _STREEBOG512_DIGEST_LENGTH 8 + +struct streebog512_ctx +{ + uint64_t state[_STREEBOG512_DIGEST_LENGTH]; /* State variables */ + uint64_t count[_STREEBOG512_DIGEST_LENGTH]; + uint64_t sigma[_STREEBOG512_DIGEST_LENGTH]; + unsigned int index; /* index into buffer */ + uint8_t block[STREEBOG512_BLOCK_SIZE]; /* STREEBOG512 data buffer */ +}; + +void +streebog512_init(struct streebog512_ctx *ctx); + +void +streebog512_update(struct streebog512_ctx *ctx, + size_t length, + const uint8_t *data); + +void +streebog512_digest(struct streebog512_ctx *ctx, + size_t length, + uint8_t *digest); + + +#define STREEBOG256_DIGEST_SIZE 32 +#define STREEBOG256_BLOCK_SIZE STREEBOG512_BLOCK_SIZE +#define streebog256_ctx streebog512_ctx + +void +streebog256_init(struct streebog256_ctx *ctx); + +#define streebog256_update nettle_streebog512_update + +void +streebog256_digest(struct streebog256_ctx *ctx, + size_t length, + uint8_t *digest); + +#ifdef __cplusplus +} +#endif + +#endif /* NETTLE_STREEBOG_H_INCLUDED */ -- cgit v1.2.1