| yuezonghe | 824eb0c | 2024-06-27 02:32:26 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved. |
| 3 | * |
| 4 | * Licensed under the OpenSSL license (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 | #include <openssl/rc2.h> |
| 11 | #include "rc2_local.h" |
| 12 | #include <openssl/opensslv.h> |
| 13 | |
| 14 | /*- |
| 15 | * RC2 as implemented frm a posting from |
| 16 | * Newsgroups: sci.crypt |
| 17 | * Subject: Specification for Ron Rivests Cipher No.2 |
| 18 | * Message-ID: <4fk39f$f70@net.auckland.ac.nz> |
| 19 | * Date: 11 Feb 1996 06:45:03 GMT |
| 20 | */ |
| 21 | |
| 22 | void RC2_ecb_encrypt(const unsigned char *in, unsigned char *out, RC2_KEY *ks, |
| 23 | int encrypt) |
| 24 | { |
| 25 | unsigned long l, d[2]; |
| 26 | |
| 27 | c2l(in, l); |
| 28 | d[0] = l; |
| 29 | c2l(in, l); |
| 30 | d[1] = l; |
| 31 | if (encrypt) |
| 32 | RC2_encrypt(d, ks); |
| 33 | else |
| 34 | RC2_decrypt(d, ks); |
| 35 | l = d[0]; |
| 36 | l2c(l, out); |
| 37 | l = d[1]; |
| 38 | l2c(l, out); |
| 39 | l = d[0] = d[1] = 0; |
| 40 | } |