1 /************************************************************************** 2 Copyright (C) 2009 Lander Casado, Philippas Tsigas 3 4 All rights reserved. 5 6 Permission is hereby granted, free of charge, to any person obtaining 7 a copy of this software and associated documentation files 8 (the "Software"), to deal with the Software without restriction, including 9 without limitation the rights to use, copy, modify, merge, publish, 10 distribute, sublicense, and/or sell copies of the Software, and to 11 permit persons to whom the Software is furnished to do so, subject to 12 the following conditions: 13 14 Redistributions of source code must retain the above copyright notice, 15 this list of conditions and the following disclaimers. Redistributions in 16 binary form must reproduce the above copyright notice, this list of 17 conditions and the following disclaimers in the documentation and/or 18 other materials provided with the distribution. 19 20 In no event shall the authors or copyright holders be liable for any special, 21 incidental, indirect or consequential damages of any kind, or any damages 22 whatsoever resulting from loss of use, data or profits, whether or not 23 advised of the possibility of damage, and on any theory of liability, 24 arising out of or in connection with the use or performance of this software. 25 26 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 27 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 28 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE 29 CONTRIBUTORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 30 LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 31 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER 32 DEALINGS WITH THE SOFTWARE 33 34 *****************************************************************************/ 35 36 #ifndef _CMAC_H_ 37 #define _CMAC_H_ 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 #include "aes.h" 44 45 #define AES_CMAC_KEY_LENGTH 16 46 #define AES_CMAC_DIGEST_LENGTH 16 47 48 typedef struct _AES_CMAC_CTX { 49 aes_context rijndael; 50 uint8_t X[16]; 51 uint8_t M_last[16]; 52 uint32_t M_n; 53 } AES_CMAC_CTX; 54 55 //#include <sys/cdefs.h> 56 57 //__BEGIN_DECLS 58 void AES_CMAC_Init(AES_CMAC_CTX * ctx); 59 void AES_CMAC_SetKey(AES_CMAC_CTX * ctx, const uint8_t key[AES_CMAC_KEY_LENGTH]); 60 void AES_CMAC_Update(AES_CMAC_CTX * ctx, const uint8_t * data, uint32_t len); 61 // __attribute__((__bounded__(__string__,2,3))); 62 void AES_CMAC_Final(uint8_t digest[AES_CMAC_DIGEST_LENGTH], AES_CMAC_CTX * ctx); 63 // __attribute__((__bounded__(__minbytes__,1,AES_CMAC_DIGEST_LENGTH))); 64 //__END_DECLS 65 66 #ifdef __cplusplus 67 } 68 #endif 69 70 #endif /* _CMAC_H_ */ 71 72
