2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
12 void DES_pcbc_encrypt(const unsigned char *input, unsigned char *output,
13 long length, DES_key_schedule *schedule,
14 DES_cblock *ivec, int enc)
16 register DES_LONG sin0, sin1, xor0, xor1, tout0, tout1;
18 const unsigned char *in;
19 unsigned char *out, *iv;
28 for (; length > 0; length -= 8) {
33 c2ln(in, sin0, sin1, length);
36 DES_encrypt1((DES_LONG *)tin, schedule, DES_ENCRYPT);
47 for (; length > 0; length -= 8) {
52 DES_encrypt1((DES_LONG *)tin, schedule, DES_DECRYPT);
53 tout0 = tin[0] ^ xor0;
54 tout1 = tin[1] ^ xor1;
59 l2cn(tout0, tout1, out, length);
65 sin0 = sin1 = xor0 = xor1 = tout0 = tout1 = 0;