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 uint32_t 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