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
28void 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