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Diffstat (limited to 'siv-cmac-aes128.c')
-rw-r--r-- | siv-cmac-aes128.c | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/siv-cmac-aes128.c b/siv-cmac-aes128.c new file mode 100644 index 00000000..82ac16e9 --- /dev/null +++ b/siv-cmac-aes128.c @@ -0,0 +1,77 @@ +/* siv-cmac-aes128.c + + AES-SIV, RFC5297 + + Copyright (C) 2017 Nikos Mavrogiannopoulos + + 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/. +*/ + +#if HAVE_CONFIG_H +# include "config.h" +#endif + +#include <assert.h> +#include <string.h> + +#include "aes.h" +#include "siv-cmac.h" +#include "cmac.h" +#include "ctr.h" +#include "memxor.h" +#include "memops.h" +#include "cmac-internal.h" + +void +siv_cmac_aes128_set_key(struct siv_cmac_aes128_ctx *ctx, const uint8_t *key) +{ + siv_cmac_set_key(&ctx->cmac_key, &ctx->cmac_cipher, &ctx->ctr_cipher, &nettle_aes128, key); +} + +void +siv_cmac_aes128_encrypt_message(const struct siv_cmac_aes128_ctx *ctx, + size_t nlength, const uint8_t *nonce, + size_t alength, const uint8_t *adata, + size_t clength, uint8_t *dst, const uint8_t *src) +{ + siv_cmac_encrypt_message(&ctx->cmac_key, &ctx->cmac_cipher, + &nettle_aes128, &ctx->ctr_cipher, + nlength, nonce, alength, adata, + clength, dst, src); +} + +int +siv_cmac_aes128_decrypt_message(const struct siv_cmac_aes128_ctx *ctx, + size_t nlength, const uint8_t *nonce, + size_t alength, const uint8_t *adata, + size_t mlength, uint8_t *dst, const uint8_t *src) +{ + return siv_cmac_decrypt_message(&ctx->cmac_key, &ctx->cmac_cipher, + &nettle_aes128, &ctx->ctr_cipher, + nlength, nonce, alength, adata, + mlength, dst, src); +} |