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Diffstat (limited to 'lib/nettle/gost/gost28147.h')
| -rw-r--r-- | lib/nettle/gost/gost28147.h | 219 |
1 files changed, 219 insertions, 0 deletions
diff --git a/lib/nettle/gost/gost28147.h b/lib/nettle/gost/gost28147.h new file mode 100644 index 0000000..a514ff4 --- /dev/null +++ b/lib/nettle/gost/gost28147.h @@ -0,0 +1,219 @@ +/* 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 https://www.gnu.org/licenses/. +*/ + +#ifndef GNUTLS_LIB_NETTLE_GOST_GOST28147_H +#define GNUTLS_LIB_NETTLE_GOST_GOST28147_H + +#include "config.h" + +#ifndef HAVE_NETTLE_GOST28147_SET_KEY + +#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 +#define gost28147_decrypt_simple _gnutls_gost28147_decrypt_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_cnt_init _gnutls_gost28147_cnt_init +#define gost28147_cnt_set_iv _gnutls_gost28147_cnt_set_iv +#define gost28147_cnt_crypt _gnutls_gost28147_cnt_crypt + +#define gost28147_kdf_cryptopro _gnutls_gost28147_kdf_cryptopro +#define gost28147_key_wrap_cryptopro _gnutls_gost28147_key_wrap_cryptopro +#define gost28147_key_unwrap_cryptopro _gnutls_gost28147_key_unwrap_cryptopro + +#define gost28147_imit_set_key _gnutls_gost28147_imit_set_key +#define gost28147_imit_set_nonce _gnutls_gost28147_imit_set_nonce +#define gost28147_imit_set_param _gnutls_gost28147_imit_set_param +#define gost28147_imit_update _gnutls_gost28147_imit_update +#define gost28147_imit_digest _gnutls_gost28147_imit_digest + +#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_decrypt_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); + +struct gost28147_cnt_ctx { + struct gost28147_ctx ctx; + size_t bytes; + uint32_t iv[2]; + uint8_t buffer[GOST28147_BLOCK_SIZE]; +}; + +void +gost28147_cnt_init(struct gost28147_cnt_ctx *ctx, + const uint8_t *key, + const struct gost28147_param *param); + +void +gost28147_cnt_set_iv(struct gost28147_cnt_ctx *ctx, + const uint8_t *iv); + +void +gost28147_cnt_crypt(struct gost28147_cnt_ctx *ctx, + size_t length, uint8_t *dst, + const uint8_t *src); + +void +gost28147_kdf_cryptopro(const struct gost28147_param *param, + const uint8_t *in, + const uint8_t *ukm, + uint8_t *out); +void +gost28147_key_wrap_cryptopro(const struct gost28147_param *param, + const uint8_t *kek, + const uint8_t *ukm, size_t ukm_size, + const uint8_t *cek, + uint8_t *enc, + uint8_t *imit); + +int +gost28147_key_unwrap_cryptopro(const struct gost28147_param *param, + const uint8_t *kek, + const uint8_t *ukm, size_t ukm_size, + const uint8_t *enc, + const uint8_t *imit, + uint8_t *cek); + +#define GOST28147_IMIT_DIGEST_SIZE 4 +#define GOST28147_IMIT_BLOCK_SIZE GOST28147_BLOCK_SIZE +#define GOST28147_IMIT_KEY_SIZE GOST28147_KEY_SIZE + +struct gost28147_imit_ctx +{ + struct gost28147_ctx cctx; + uint64_t count; /* Block count */ + uint8_t block[GOST28147_IMIT_BLOCK_SIZE]; /* Block buffer */ + unsigned index; /* Into buffer */ + uint32_t state[GOST28147_IMIT_BLOCK_SIZE/4]; +}; + +void +gost28147_imit_set_key(struct gost28147_imit_ctx *ctx, + size_t length, + const uint8_t *key); + +void +gost28147_imit_set_nonce(struct gost28147_imit_ctx *ctx, + const uint8_t *nonce); + +void +gost28147_imit_set_param(struct gost28147_imit_ctx *ctx, + const struct gost28147_param *param); + +void +gost28147_imit_update(struct gost28147_imit_ctx *ctx, + size_t length, + const uint8_t *data); + +void +gost28147_imit_digest(struct gost28147_imit_ctx *ctx, + size_t length, + uint8_t *digest); + +#ifdef __cplusplus +} +#endif + +#endif + +#endif /* GNUTLS_LIB_NETTLE_GOST_GOST28147_H */ |