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 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 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