aes128__cmac_8h_source.html

/*

 * Copyright (C) 2016 Fundación Inria Chile

 *

 * This file is subject to the terms and conditions of the GNU Lesser

 * General Public License v2.1. See the file LICENSE in the top level

 * directory for more details.

 */


#ifndef HASHES_AES128_CMAC_H

#define HASHES_AES128_CMAC_H


#include <stdio.h>

#include "crypto/ciphers.h"


#ifdef __cplusplus

extern "C" {

#endif


#define AES128_CMAC_BLOCK_SIZE 16


typedef struct {

    cipher_t aes128_ctx;

    uint8_t X[AES128_CMAC_BLOCK_SIZE];

    uint8_t M_last[AES128_CMAC_BLOCK_SIZE];

    uint32_t M_n;

} aes128_cmac_context_t;


int aes128_cmac_init(aes128_cmac_context_t *ctx,

                     const uint8_t *key, uint8_t key_size);


void aes128_cmac_update(aes128_cmac_context_t *ctx,

                        const void *data, size_t len);


void aes128_cmac_final(aes128_cmac_context_t *ctx, void *digest);


#ifdef __cplusplus

}

#endif


#endif /* HASHES_AES128_CMAC_H */

ciphers.h
Headers for the packet encryption class.

aes128_cmac_init
int aes128_cmac_init(aes128_cmac_context_t *ctx, const uint8_t *key, uint8_t key_size)
Initialize AES128 CMAC message digest context.

aes128_cmac_final
void aes128_cmac_final(aes128_cmac_context_t *ctx, void *digest)
Finalizes the CMAC message digest.

aes128_cmac_update
void aes128_cmac_update(aes128_cmac_context_t *ctx, const void *data, size_t len)
Update the AES128 CMAC context with a portion of the message being hashed.

AES128_CMAC_BLOCK_SIZE
#define AES128_CMAC_BLOCK_SIZE
Length of AES128_CMAC block in bytes.
Definition aes128_cmac.h:35

stdio.h
stdio wrapper to extend the C libs stdio

aes128_cmac_context_t
AES128_CMAC calculation context.
Definition aes128_cmac.h:40

aes128_cmac_context_t::M_n
uint32_t M_n
last byte in last block
Definition aes128_cmac.h:48

aes128_cmac_context_t::aes128_ctx
cipher_t aes128_ctx
AES128 context.
Definition aes128_cmac.h:42

cipher_t
basic struct for using block ciphers contains the cipher interface and the context
Definition ciphers.h:119