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-rw-r--r--siv-cmac-aes128.c77
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+/* 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);
+}