cmac.h

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Copyright (C) 2009 Lander Casado, Philippas Tsigas
 
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#ifndef _CMAC_H_
#define _CMAC_H_
 
#include "aes.h"
 
extern "C"
{
#define AES_CMAC_KEY_LENGTH 16
#define AES_CMAC_DIGEST_LENGTH 16
 
    typedef struct _AES_CMAC_CTX
    {
        lora_aes_context rijndael;
        uint8_t X[16];
        uint8_t M_last[16];
        uint32_t 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 uint8_t key[AES_CMAC_KEY_LENGTH]);
    void AES_CMAC_Update(AES_CMAC_CTX *ctx, const uint8_t *data, uint32_t len);
    //          __attribute__((__bounded__(__string__,2,3)));
    void AES_CMAC_Final(uint8_t digest[AES_CMAC_DIGEST_LENGTH], AES_CMAC_CTX *ctx);
    //     __attribute__((__bounded__(__minbytes__,1,AES_CMAC_DIGEST_LENGTH)));
    //__END_DECLS
};
#endif /* _CMAC_H_ */