1/*
2 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
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
8 */
9
10/*
11 * DES low level APIs are deprecated for public use, but still ok for internal
12 * use.
13 */
14#include "internal/deprecated.h"
15
16#include "des_local.h"
17
18void DES_ecb3_encrypt(const_DES_cblock *input, DES_cblock *output,
19                      DES_key_schedule *ks1, DES_key_schedule *ks2,
20                      DES_key_schedule *ks3, int enc)
21{
22    register DES_LONG l0, l1;
23    DES_LONG ll[2];
24    const unsigned char *in = &(*input)[0];
25    unsigned char *out = &(*output)[0];
26
27    c2l(in, l0);
28    c2l(in, l1);
29    ll[0] = l0;
30    ll[1] = l1;
31    if (enc)
32        DES_encrypt3(ll, ks1, ks2, ks3);
33    else
34        DES_decrypt3(ll, ks1, ks2, ks3);
35    l0 = ll[0];
36    l1 = ll[1];
37    l2c(l0, out);
38    l2c(l1, out);
39}
40