2 * Copyright 1995-2020 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
11 * DES low level APIs are deprecated for public use, but still ok for internal
14 #include "internal/deprecated.h"
16 #include "des_local.h"
19 * The input and output encrypted as though 64bit ofb mode is being used.
20 * The extra state information to record how much of the 64bit block we have
21 * used is contained in *num;
23 void DES_ede3_ofb64_encrypt(register const unsigned char *in,
24 register unsigned char *out, long length,
25 DES_key_schedule *k1, DES_key_schedule *k2,
26 DES_key_schedule *k3, DES_cblock *ivec, int *num)
28 register DES_LONG v0, v1;
29 register int n = *num;
30 register long l = length;
49 DES_encrypt3(ti, k1, k2, k3);
58 *(out++) = *(in++) ^ d[n];
66 v0 = v1 = ti[0] = ti[1] = 0;