cmac.h

/**************************************************************************
Copyright (C) 2009 Lander Casado, Philippas Tsigas

All rights reserved.

Permission is hereby granted, free of charge, to any person obtaining
a copy of this software and associated documentation files 
(the "Software"), to deal with the Software without restriction, including
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the following conditions: 

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conditions and the following disclaimers in the documentation and/or 
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*****************************************************************************/

#ifndef _CMAC_H_
#define _CMAC_H_

#include "aes.h" 

#ifdef __cplusplus
	extern "C" {
#endif

#define AES_CMAC_KEY_LENGTH     16
#define AES_CMAC_DIGEST_LENGTH  16
 

typedef unsigned char  u_int8_t;
typedef unsigned int u_int;
typedef struct _AES_CMAC_CTX {
            aes_context    rijndael;
            u_int8_t        X[16];
            u_int8_t        M_last[16];
            u_int           M_n;
    } AES_CMAC_CTX;
   
//#include <sys/cdefs.h>
    
//__BEGIN_DECLS
void     AES_CMAC_Init(AES_CMAC_CTX * ctx);
void     AES_CMAC_SetKey(AES_CMAC_CTX * ctx, const u_int8_t key[AES_CMAC_KEY_LENGTH]);
void     AES_CMAC_Update(AES_CMAC_CTX * ctx, const u_int8_t * data, u_int len);
          //          __attribute__((__bounded__(__string__,2,3)));
void     AES_CMAC_Final(u_int8_t digest[AES_CMAC_DIGEST_LENGTH], AES_CMAC_CTX  * ctx);
            //     __attribute__((__bounded__(__minbytes__,1,AES_CMAC_DIGEST_LENGTH)));
//__END_DECLS

#ifdef __cplusplus
	}
#endif

#endif /* _CMAC_H_ */