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 #include <openssl/opensslv.h>
18 #include <openssl/bio.h>
19
20
DES_options(void)21 const char *DES_options(void)
22 {
23 static int init = 1;
24 static char buf[12];
25
26 if (init) {
27 if (sizeof(DES_LONG) != sizeof(long))
28 OPENSSL_strlcpy(buf, "des(int)", sizeof(buf));
29 else
30 OPENSSL_strlcpy(buf, "des(long)", sizeof(buf));
31 init = 0;
32 }
33 return buf;
34 }
35
DES_ecb_encrypt(const_DES_cblock * input,DES_cblock * output,DES_key_schedule * ks,int enc)36 void DES_ecb_encrypt(const_DES_cblock *input, DES_cblock *output,
37 DES_key_schedule *ks, int enc)
38 {
39 register DES_LONG l;
40 DES_LONG ll[2];
41 const unsigned char *in = &(*input)[0];
42 unsigned char *out = &(*output)[0];
43
44 c2l(in, l);
45 ll[0] = l;
46 c2l(in, l);
47 ll[1] = l;
48 DES_encrypt1(ll, ks, enc);
49 l = ll[0];
50 l2c(l, out);
51 l = ll[1];
52 l2c(l, out);
53 l = ll[0] = ll[1] = 0;
54 }
55
