cmac_alt.h

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#ifndef MBEDTLS_CMAC_ALT_H
#define MBEDTLS_CMAC_ALT_H

#if !defined(MBEDTLS_CONFIG_FILE)
#include "config.h"
#else
#include MBEDTLS_CONFIG_FILE
#endif

/***************************************************************************/
/***************************************************************************/
#if defined( MBEDTLS_CMAC_ALT )
/* SiliconLabs CRYPTO hardware acceleration implementation */

#include "aesdrv.h"
#include "sl_crypto.h"
#include "cipher.h"
#include <stddef.h>

#define MBEDTLS_ERR_CMAC_BAD_INPUT      ((int)MBEDTLS_ERR_CMAC_BASE | 0x01)
#define MBEDTLS_ERR_CMAC_AUTH_FAILED    ((int)MBEDTLS_ERR_CMAC_BASE | 0x02)

#ifdef __cplusplus
extern "C" {
#endif

typedef struct
{
    AESDRV_Context_t             aesdrv_ctx;  
    unsigned int                 keybits;     
    uint32_t                     key[8];      
}
mbedtls_cmac_context;

void mbedtls_cmac_init( mbedtls_cmac_context *ctx );

int mbedtls_cmac_set_device_instance(mbedtls_cmac_context* ctx,
                                     unsigned int          devno);

int mbedtls_cmac_set_device_lock_wait_ticks(mbedtls_cmac_context *ctx,
                                            int                   ticks);

int mbedtls_cmac_setkey( mbedtls_cmac_context *ctx,
                         mbedtls_cipher_id_t cipher,
                         const unsigned char *key,
                         unsigned int keybits );

void mbedtls_cmac_free( mbedtls_cmac_context *ctx );

int mbedtls_cmac_generate_tag( mbedtls_cmac_context *ctx,
                               const unsigned char  *data,
                               size_t                data_len,
                               unsigned char        *tag,
                               size_t                tag_len );

int mbedtls_cmac_verify_tag( mbedtls_cmac_context *ctx,
                             const unsigned char  *data,
                             size_t                data_len,
                             unsigned char        *tag,
                             size_t                tag_len );

#if defined(MBEDTLS_SELF_TEST) && defined(MBEDTLS_CMAC_C)

  int mbedtls_cmac_self_test( int verbose, int device_instance );
#endif /* MBEDTLS_SELF_TEST && MBEDTLS_CMAC_C */

#ifdef __cplusplus
}
#endif

#endif /* #if defined( MBEDTLS_CMAC_ALT ) */

#endif /* MBEDTLS_CMAC_ALT_H */