CRYPT_EAL_GetMacLen CRYPT_EAL_MacDeinit CRYPT_EAL_MacFinal CRYPT_EAL_MacFreeCtx CRYPT_EAL_MacInit CRYPT_EAL_MacIsValidAlgId CRYPT_EAL_MacNewCtx CRYPT_EAL_MacReinit CRYPT_EAL_MacUpdate

CRYPT_EAL_MacInit() int32_t CRYPT_EAL_MacInit ( CRYPT_EAL_MacCtx *  ctx, const uint8_t *  key, uint32_t  len  ) MAC algorithm initialize the context, which is used after the CRYPT_EAL_MacNewCtx interface is called. The initialization interface can be used at any time during the calculation, note that the last calculation data is cleared after the initialization interface is called. 参数 ctx [IN] MAC context key [IN] Key, The length specifications are as follows: HMAC:Any integer greater than or equal to 0 The length of HMAC-SHA1, HMAC-SHA224, and HMAC-SHA256 must be less than 2^64 bits, the length of HMAC-SHA384 and HMAC-SHA512 must be less than 2^128 bits. HMAC-SHA3 series has no limit on length CMAC: The length of CMAC-AES128 must be 128 bits, and the length of CMAC-AES192 must be 192 bits. The length of CMAC-AES256 must be 256 bits. len [IN] Key length 返回值 CRYPT_SUCCESS,initialization succeeded. CRYPT_NULL_INPUT,pointer ctx parameter or key parameter is NULL. CRYPT_AES_ERR_KEYLEN,the key length of the AES & CMAC algorithm is incorrect. Other error codes see the crypt_errno.h.