2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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
13 * The input and output encrypted as though 64bit ofb mode is being used.
14 * The extra state information to record how much of the 64bit block we have
15 * used is contained in *num;
17 void DES_ede3_ofb64_encrypt(register const unsigned char *in,
18 register unsigned char *out, long length,
19 DES_key_schedule *k1, DES_key_schedule *k2,
20 DES_key_schedule *k3, DES_cblock *ivec, int *num)
22 register DES_LONG v0, v1;
23 register int n = *num;
24 register long l = length;
43 DES_encrypt3(ti, k1, k2, k3);
52 *(out++) = *(in++) ^ d[n];
60 v0 = v1 = ti[0] = ti[1] = 0;