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64 lines
2.6 KiB
64 lines
2.6 KiB
7 years ago
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/**************************************************************************
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Copyright (C) 2009 Lander Casado, Philippas Tsigas
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All rights reserved.
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files
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(the "Software"), to deal with the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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Redistributions of source code must retain the above copyright notice,
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this list of conditions and the following disclaimers. Redistributions in
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binary form must reproduce the above copyright notice, this list of
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conditions and the following disclaimers in the documentation and/or
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other materials provided with the distribution.
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In no event shall the authors or copyright holders be liable for any special,
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incidental, indirect or consequential damages of any kind, or any damages
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whatsoever resulting from loss of use, data or profits, whether or not
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advised of the possibility of damage, and on any theory of liability,
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arising out of or in connection with the use or performance of this software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS WITH THE SOFTWARE
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*****************************************************************************/
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#ifndef _CMAC_H_
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#define _CMAC_H_
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#include "aes.h"
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#define AES_CMAC_KEY_LENGTH 16
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#define AES_CMAC_DIGEST_LENGTH 16
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typedef struct _AES_CMAC_CTX {
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aes_context rijndael;
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uint8_t X[16];
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uint8_t M_last[16];
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uint32_t M_n;
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} AES_CMAC_CTX;
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//#include <sys/cdefs.h>
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//__BEGIN_DECLS
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void AES_CMAC_Init(AES_CMAC_CTX * ctx);
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void AES_CMAC_SetKey(AES_CMAC_CTX * ctx, const uint8_t key[AES_CMAC_KEY_LENGTH]);
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void AES_CMAC_Update(AES_CMAC_CTX * ctx, const uint8_t * data, uint32_t len);
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// __attribute__((__bounded__(__string__,2,3)));
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void AES_CMAC_Final(uint8_t digest[AES_CMAC_DIGEST_LENGTH], AES_CMAC_CTX * ctx);
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// __attribute__((__bounded__(__minbytes__,1,AES_CMAC_DIGEST_LENGTH)));
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//__END_DECLS
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#endif /* _CMAC_H_ */
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