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-rw-r--r--lib/crypto/aes_cmac_128.h47
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diff --git a/lib/crypto/aes_cmac_128.h b/lib/crypto/aes_cmac_128.h
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+/*
+ AES-CMAC-128 (rfc 4493)
+ Copyright (C) Stefan Metzmacher 2012
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation; either version 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef LIB_CRYPTO_AES_CMAC_128_H
+#define LIB_CRYPTO_AES_CMAC_128_H
+
+struct aes_cmac_128_context {
+ AES_KEY aes_key;
+
+ uint64_t __align;
+
+ uint8_t K1[AES_BLOCK_SIZE];
+ uint8_t K2[AES_BLOCK_SIZE];
+
+ uint8_t L[AES_BLOCK_SIZE];
+ uint8_t X[AES_BLOCK_SIZE];
+ uint8_t Y[AES_BLOCK_SIZE];
+
+ uint8_t tmp[AES_BLOCK_SIZE];
+
+ uint8_t last[AES_BLOCK_SIZE];
+ size_t last_len;
+};
+
+void aes_cmac_128_init(struct aes_cmac_128_context *ctx,
+ const uint8_t K[AES_BLOCK_SIZE]);
+void aes_cmac_128_update(struct aes_cmac_128_context *ctx,
+ const uint8_t *_msg, size_t _msg_len);
+void aes_cmac_128_final(struct aes_cmac_128_context *ctx,
+ uint8_t T[AES_BLOCK_SIZE]);
+
+#endif /* LIB_CRYPTO_AES_CMAC_128_H */