/* Triple DES Iv Set, sometimes added later */
int CRYPT_TDES_IvSet(CRYPT_TDES_CTX* tdes, const unsigned char* iv)
{
if (tdes == NULL || iv == NULL)
return BAD_FUNC_ARG;
return Des3_SetIV((Des3*)tdes, iv);
}
static void Des3_CaviumSetKey(Des3* des3, const byte* key, const byte* iv)
{
if (des3 == NULL)
return;
/* key[0] holds key, iv in reg */
XMEMCPY(des3->key[0], key, DES_BLOCK_SIZE*3);
Des3_SetIV(des3, iv);
}
void Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir)
{
#ifdef HAVE_CAVIUM
if (des->magic == CYASSL_3DES_CAVIUM_MAGIC)
return Des3_CaviumSetKey(des, key, iv);
#endif
DesSetKey(key + (dir == DES_ENCRYPTION ? 0 : 16), dir, des->key[0]);
DesSetKey(key + 8, Reverse(dir), des->key[1]);
DesSetKey(key + (dir == DES_DECRYPTION ? 0 : 16), dir, des->key[2]);
Des3_SetIV(des, iv);
}
void Des3_SetKey(Des3* des, const byte* key, const byte* iv, int dir)
{
word32 *dkey1 = des->key[0];
word32 *dkey2 = des->key[1];
word32 *dkey3 = des->key[2];
XMEMCPY(dkey1, key, 8); /* set key 1 */
XMEMCPY(dkey2, key + 8, 8); /* set key 2 */
XMEMCPY(dkey3, key + 16, 8); /* set key 3 */
ByteReverseWords(dkey1, dkey1, 8);
ByteReverseWords(dkey2, dkey2, 8);
ByteReverseWords(dkey3, dkey3, 8);
Des3_SetIV(des, iv);
}
