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 * RC2 low level APIs are deprecated for public use, but still ok for internal
12 * use.
13 */
14 #include "internal/deprecated.h"
15
16 #include <openssl/rc2.h>
17 #include "rc2_local.h"
18 #include <openssl/opensslv.h>
19
20 /*-
21 * RC2 as implemented frm a posting from
22 * Newsgroups: sci.crypt
23 * Subject: Specification for Ron Rivests Cipher No.2
24 * Message-ID: <4fk39f$f70@net.auckland.ac.nz>
25 * Date: 11 Feb 1996 06:45:03 GMT
26 */
27
RC2_ecb_encrypt(const unsigned char * in,unsigned char * out,RC2_KEY * ks,int encrypt)28 void RC2_ecb_encrypt(const unsigned char *in, unsigned char *out, RC2_KEY *ks,
29 int encrypt)
30 {
31 unsigned long l, d[2];
32
33 c2l(in, l);
34 d[0] = l;
35 c2l(in, l);
36 d[1] = l;
37 if (encrypt)
38 RC2_encrypt(d, ks);
39 else
40 RC2_decrypt(d, ks);
41 l = d[0];
42 l2c(l, out);
43 l = d[1];
44 l2c(l, out);
45 l = d[0] = d[1] = 0;
46 }
47