WOLFSSL_API int wc_AesSetKey(Aes* aes, const byte* key, word32 len, const byte* iv,
int dir)
{
if(!wolfSSL_TI_CCMInit())return 1 ;
if ((aes == NULL) || (key == NULL) || (iv == NULL))
return BAD_FUNC_ARG;
if(!((dir == AES_ENCRYPTION) || (dir == AES_DECRYPTION)))
return BAD_FUNC_ARG;
switch(len) {
case 16:
aes->keylen = AES_CFG_KEY_SIZE_128BIT ;
break ;
case 24:
aes->keylen = AES_CFG_KEY_SIZE_192BIT ;
break ;
case 32:
aes->keylen = AES_CFG_KEY_SIZE_256BIT ;
break ;
default:
return BAD_FUNC_ARG;
}
XMEMCPY(aes->key, key, len) ;
#ifdef WOLFSSL_AES_COUNTER
aes->left = 0;
#endif /* WOLFSSL_AES_COUNTER */
return AesSetIV(aes, iv);
}
/* AES Iv Set, sometimes added later */
int CRYPT_AES_IvSet(CRYPT_AES_CTX* aes, const unsigned char* iv)
{
if (aes == NULL || iv == NULL)
return BAD_FUNC_ARG;
return AesSetIV((Aes*)aes, iv);
}