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Diffstat (limited to 'lib/nettle/gost/gost28147.h')
| -rw-r--r-- | lib/nettle/gost/gost28147.h | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/lib/nettle/gost/gost28147.h b/lib/nettle/gost/gost28147.h new file mode 100644 index 0000000000..1949254924 --- /dev/null +++ b/lib/nettle/gost/gost28147.h @@ -0,0 +1,118 @@ +/* gost28147.h + + The GOST 28147-89 (MAGMA) cipher function, described in RFC 5831. + + Copyright (C) 2015 Dmitry Eremin-Solenikov + Copyright (C) 2012 Nikos Mavrogiannopoulos, Niels Möller + + 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_GOST28147_H_INCLUDED +#define NETTLE_GOST28147_H_INCLUDED + +#include <nettle/nettle-types.h> + +#ifdef __cplusplus +extern "C" { +#endif + +/* S-Boxes & parameters */ +#define gost28147_param_test_3411 _gnutls_gost28147_param_test_3411 +#define gost28147_param_CryptoPro_3411 _gnutls_gost28147_param_CryptoPro_3411 +#define gost28147_param_Test_89 _gnutls_gost28147_param_Test_89 +#define gost28147_param_CryptoPro_A _gnutls_gost28147_param_CryptoPro_A +#define gost28147_param_CryptoPro_B _gnutls_gost28147_param_CryptoPro_B +#define gost28147_param_CryptoPro_C _gnutls_gost28147_param_CryptoPro_C +#define gost28147_param_CryptoPro_D _gnutls_gost28147_param_CryptoPro_D +#define gost28147_param_TC26_Z _gnutls_gost28147_param_TC26_Z + +/* Private */ +#define gost28147_encrypt_simple _gnutls_gost28147_encrypt_simple + +/* Public functions */ +#define gost28147_set_key _gnutls_gost28147_set_key +#define gost28147_set_param _gnutls_gost28147_set_param +#define gost28147_encrypt _gnutls_gost28147_encrypt +#define gost28147_encrypt_for_cfb _gnutls_gost28147_encrypt_for_cfb +#define gost28147_decrypt _gnutls_gost28147_decrypt + +#define GOST28147_KEY_SIZE 32 +#define GOST28147_BLOCK_SIZE 8 + +struct gost28147_ctx +{ + uint32_t key[GOST28147_KEY_SIZE/4]; + const uint32_t *sbox; + int key_meshing; + int key_count; /* Used for key meshing */ +}; + +struct gost28147_param +{ + int key_meshing; + uint32_t sbox[4*256]; +}; + +extern const struct gost28147_param gost28147_param_test_3411; +extern const struct gost28147_param gost28147_param_CryptoPro_3411; +extern const struct gost28147_param gost28147_param_Test_89; +extern const struct gost28147_param gost28147_param_CryptoPro_A; +extern const struct gost28147_param gost28147_param_CryptoPro_B; +extern const struct gost28147_param gost28147_param_CryptoPro_C; +extern const struct gost28147_param gost28147_param_CryptoPro_D; +extern const struct gost28147_param gost28147_param_TC26_Z; + +/* Internal interface for use by GOST R 34.11-94 */ +void gost28147_encrypt_simple (const uint32_t *key, const uint32_t *sbox, + const uint32_t *in, uint32_t *out); + +void +gost28147_set_key(struct gost28147_ctx *ctx, const uint8_t *key); + +void +gost28147_set_param(struct gost28147_ctx *ctx, + const struct gost28147_param *param); + +void +gost28147_encrypt(const struct gost28147_ctx *ctx, + size_t length, uint8_t *dst, + const uint8_t *src); +void +gost28147_decrypt(const struct gost28147_ctx *ctx, + size_t length, uint8_t *dst, + const uint8_t *src); +void +gost28147_encrypt_for_cfb(struct gost28147_ctx *ctx, + size_t length, uint8_t *dst, + const uint8_t *src); + +#ifdef __cplusplus +} +#endif + +#endif /* NETTLE_GOST28147_H_INCLUDED */ |