static int AesAlign16(Aes* aes, byte* out, const byte* in, word32 sz, word32 dir, word32 mode)
{
wolfSSL_TI_lockCCM() ;
ROM_AESReset(AES_BASE);
ROM_AESConfigSet(AES_BASE, (aes->keylen | dir |
(mode==AES_CFG_MODE_CTR_NOCTR ? AES_CFG_MODE_CTR : mode)));
ROM_AESIVSet(AES_BASE, aes->reg);
ROM_AESKey1Set(AES_BASE, aes->key, aes->keylen);
if((dir == AES_CFG_DIR_DECRYPT)&& (mode == AES_CFG_MODE_CBC))
/* if input and output same will overwrite input iv */
XMEMCPY(aes->tmp, in + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
ROM_AESDataProcess(AES_BASE, (uint32_t *)in, (uint32_t *)out, sz);
wolfSSL_TI_unlockCCM() ;
/* store iv for next call */
if(mode == AES_CFG_MODE_CBC) {
if(dir == AES_CFG_DIR_ENCRYPT)
XMEMCPY(aes->reg, out + sz - AES_BLOCK_SIZE, AES_BLOCK_SIZE);
else
XMEMCPY(aes->reg, aes->tmp, AES_BLOCK_SIZE);
}
if(mode == AES_CFG_MODE_CTR) {
do {
int i ;
for (i = AES_BLOCK_SIZE - 1; i >= 0; i--) {
if (++((byte *)aes->reg)[i])
break ;
}
sz -= AES_BLOCK_SIZE ;
} while((int)sz > 0) ;
}
return 0 ;
}
static int hashGetHash(wolfssl_TI_Hash *hash, byte* result, word32 algo, word32 hsize)
{
uint32_t h[16] ;
#ifndef TI_DUMMY_BUILD
wolfSSL_TI_lockCCM() ;
ROM_SHAMD5Reset(SHAMD5_BASE);
ROM_SHAMD5ConfigSet(SHAMD5_BASE, algo);
ROM_SHAMD5DataProcess(SHAMD5_BASE,
(uint32_t *)hash->msg, hash->used, h);
wolfSSL_TI_unlockCCM() ;
#else
(void) hash ;
(void) algo ;
#endif
XMEMCPY(result, h, hsize) ;
return 0 ;
}
static int DesCbcAlign16(Des* des, byte* out, const byte* in, word32 sz, word32 dir, word32 tri)
{
wolfSSL_TI_lockCCM() ;
ROM_DESReset(DES_BASE);
ROM_DESConfigSet(DES_BASE, (dir | DES_CFG_MODE_CBC | tri));
ROM_DESIVSet(DES_BASE, (uint32_t*)des->reg);
ROM_DESKeySet(DES_BASE,(uint32_t*)des->key);
if(dir == DES_CFG_DIR_DECRYPT)
/* if input and output same will overwrite input iv */
XMEMCPY(des->tmp, in + sz - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
ROM_DESDataProcess(DES_BASE, (uint32_t *)in, (uint32_t *)out, sz);
wolfSSL_TI_unlockCCM() ;
/* store iv for next call */
if(dir == DES_CFG_DIR_ENCRYPT)
XMEMCPY(des->reg, out + sz - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
else
XMEMCPY(des->reg, des->tmp, DES_BLOCK_SIZE);
return 0 ;
}
