summaryrefslogtreecommitdiff
path: root/src/lib/libcrypto/evp/e_des.c
diff options
context:
space:
mode:
Diffstat (limited to 'src/lib/libcrypto/evp/e_des.c')
-rw-r--r--src/lib/libcrypto/evp/e_des.c231
1 files changed, 0 insertions, 231 deletions
diff --git a/src/lib/libcrypto/evp/e_des.c b/src/lib/libcrypto/evp/e_des.c
deleted file mode 100644
index aac6ddf318..0000000000
--- a/src/lib/libcrypto/evp/e_des.c
+++ /dev/null
@@ -1,231 +0,0 @@
1/* $OpenBSD: e_des.c,v 1.13 2014/10/18 17:20:40 jsing Exp $ */
2/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59#include <stdio.h>
60
61#include <openssl/opensslconf.h>
62
63#ifndef OPENSSL_NO_DES
64
65#include <openssl/evp.h>
66#include <openssl/des.h>
67#include <openssl/objects.h>
68
69#include "evp_locl.h"
70
71static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
72 const unsigned char *iv, int enc);
73static int des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr);
74
75/* Because of various casts and different names can't use IMPLEMENT_BLOCK_CIPHER */
76
77static int
78des_ecb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
79 const unsigned char *in, size_t inl)
80{
81 BLOCK_CIPHER_ecb_loop()
82 DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i),
83 ctx->cipher_data, ctx->encrypt);
84 return 1;
85}
86
87static int
88des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
89 const unsigned char *in, size_t inl)
90{
91 while (inl >= EVP_MAXCHUNK) {
92 DES_ofb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
93 (DES_cblock *)ctx->iv, &ctx->num);
94 inl -= EVP_MAXCHUNK;
95 in += EVP_MAXCHUNK;
96 out += EVP_MAXCHUNK;
97 }
98 if (inl)
99 DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data,
100 (DES_cblock *)ctx->iv, &ctx->num);
101 return 1;
102}
103
104static int
105des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
106 const unsigned char *in, size_t inl)
107{
108 while (inl >= EVP_MAXCHUNK) {
109 DES_ncbc_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
110 (DES_cblock *)ctx->iv, ctx->encrypt);
111 inl -= EVP_MAXCHUNK;
112 in += EVP_MAXCHUNK;
113 out += EVP_MAXCHUNK;
114 }
115 if (inl)
116 DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data,
117 (DES_cblock *)ctx->iv, ctx->encrypt);
118 return 1;
119}
120
121static int
122des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
123 const unsigned char *in, size_t inl)
124{
125 while (inl >= EVP_MAXCHUNK) {
126 DES_cfb64_encrypt(in, out, (long)EVP_MAXCHUNK, ctx->cipher_data,
127 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
128 inl -= EVP_MAXCHUNK;
129 in += EVP_MAXCHUNK;
130 out += EVP_MAXCHUNK;
131 }
132 if (inl)
133 DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data,
134 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
135 return 1;
136}
137
138/* Although we have a CFB-r implementation for DES, it doesn't pack the right
139 way, so wrap it here */
140static int
141des_cfb1_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
142 const unsigned char *in, size_t inl)
143{
144 size_t n, chunk = EVP_MAXCHUNK/8;
145 unsigned char c[1], d[1];
146
147 if (inl < chunk)
148 chunk = inl;
149
150 while (inl && inl >= chunk) {
151 for (n = 0; n < chunk*8; ++n) {
152 c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
153 DES_cfb_encrypt(c, d, 1, 1, ctx->cipher_data,
154 (DES_cblock *)ctx->iv, ctx->encrypt);
155 out[n / 8] = (out[n / 8] &
156 ~(0x80 >> (unsigned int)(n % 8))) |
157 ((d[0] & 0x80) >> (unsigned int)(n % 8));
158 }
159 inl -= chunk;
160 in += chunk;
161 out += chunk;
162 if (inl < chunk)
163 chunk = inl;
164 }
165
166 return 1;
167}
168
169static int
170des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
171 const unsigned char *in, size_t inl)
172{
173 while (inl >= EVP_MAXCHUNK) {
174 DES_cfb_encrypt(in, out, 8, (long)EVP_MAXCHUNK,
175 ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt);
176 inl -= EVP_MAXCHUNK;
177 in += EVP_MAXCHUNK;
178 out += EVP_MAXCHUNK;
179 }
180 if (inl)
181 DES_cfb_encrypt(in, out, 8, (long)inl, ctx->cipher_data,
182 (DES_cblock *)ctx->iv, ctx->encrypt);
183 return 1;
184}
185
186BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64,
187 EVP_CIPH_RAND_KEY, des_init_key, NULL,
188 EVP_CIPHER_set_asn1_iv,
189 EVP_CIPHER_get_asn1_iv,
190 des_ctrl)
191
192BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8, 8, 1,
193 EVP_CIPH_RAND_KEY, des_init_key, NULL,
194 EVP_CIPHER_set_asn1_iv,
195 EVP_CIPHER_get_asn1_iv, des_ctrl)
196
197BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8, 8, 8,
198 EVP_CIPH_RAND_KEY, des_init_key, NULL,
199 EVP_CIPHER_set_asn1_iv,
200 EVP_CIPHER_get_asn1_iv, des_ctrl)
201
202static int
203des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
204 const unsigned char *iv, int enc)
205{
206 DES_cblock *deskey = (DES_cblock *)key;
207
208#ifdef EVP_CHECK_DES_KEY
209 if (DES_set_key_checked(deskey, ctx->cipher_data) != 0)
210 return 0;
211#else
212 DES_set_key_unchecked(deskey, ctx->cipher_data);
213#endif
214 return 1;
215}
216
217static int
218des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)
219{
220 switch (type) {
221 case EVP_CTRL_RAND_KEY:
222 if (DES_random_key((DES_cblock *)ptr) == 0)
223 return 0;
224 return 1;
225
226 default:
227 return -1;
228 }
229}
230
231#endif
generated by cgit v1.2.3-55-g6feb (git 2.39.1) at 2025-03-20 17:57:44 +0000