29 int cbc_decrypt(const unsigned char *ct, unsigned char *pt, unsigned long len, symmetric_CBC *cbc)  in cbc_decrypt()  argument
41    LTC_ARGCHK(cbc != NULL);  in cbc_decrypt()
43    if ((err = cipher_is_valid(cbc->cipher)) != CRYPT_OK) {  in cbc_decrypt()
48    if (cbc->blocklen < 1 || cbc->blocklen > (int)sizeof(cbc->IV)) {  in cbc_decrypt()
52    if (len % cbc->blocklen) {  in cbc_decrypt()
56    if (cbc->blocklen % sizeof(LTC_FAST_TYPE)) {     in cbc_decrypt()
61    if (cipher_descriptor[cbc->cipher].accel_cbc_decrypt != NULL) {  in cbc_decrypt()
62 …return cipher_descriptor[cbc->cipher].accel_cbc_decrypt(ct, pt, len / cbc->blocklen, cbc->IV, &cbc…  in cbc_decrypt()
66          if ((err = cipher_descriptor[cbc->cipher].ecb_decrypt(ct, tmp, &cbc->key)) != CRYPT_OK) {  in cbc_decrypt()
72         for (x = 0; x < cbc->blocklen; x += sizeof(LTC_FAST_TYPE)) {  in cbc_decrypt()
73 …tmpy = *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) ^ *((LTC_FAST_TYPE*)((unsigned char *)tmp…  in cbc_decrypt()
74 …  *((LTC_FAST_TYPE*)((unsigned char *)cbc->IV + x)) = *((LTC_FAST_TYPE*)((unsigned char *)ct + x));  in cbc_decrypt()
78             for (x = 0; x < cbc->blocklen; x++) {  in cbc_decrypt()
79                tmpy       = tmp[x] ^ cbc->IV[x];  in cbc_decrypt()
80                cbc->IV[x] = ct[x];  in cbc_decrypt()
85          ct  += cbc->blocklen;  in cbc_decrypt()
86          pt  += cbc->blocklen;  in cbc_decrypt()
87          len -= cbc->blocklen;  in cbc_decrypt()