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e_des.c

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1/* $OpenBSD: e_des.c,v 1.14 2015/10/12 06:05:52 guenther 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()
never executed: return 1;
inl < blDescription
TRUEnever evaluated
FALSEevaluated 20 times by 2 tests
Evaluated by:
  • evptest
  • libcrypto.so.44.0.1
i <= inlDescription
TRUEevaluated 462 times by 2 tests
Evaluated by:
  • evptest
  • libcrypto.so.44.0.1
FALSEevaluated 20 times by 2 tests
Evaluated by:
  • evptest
  • libcrypto.so.44.0.1
0-462
82 DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i),
executed 462 times by 2 tests: DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt);
Executed by:
  • evptest
  • libcrypto.so.44.0.1
462
83 ctx->cipher_data, ctx->encrypt);
executed 462 times by 2 tests: DES_ecb_encrypt((DES_cblock *)(in + i), (DES_cblock *)(out + i), ctx->cipher_data, ctx->encrypt);
Executed by:
  • evptest
  • libcrypto.so.44.0.1
462
84 return 1;
executed 20 times by 2 tests: return 1;
Executed by:
  • evptest
  • libcrypto.so.44.0.1
20
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) {
inl >= ((size_...of(long)*8-2))Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-4
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 }
never executed: end of block
0
98 if (inl)
inlDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-4
99 DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data,
executed 4 times by 1 test: DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, &ctx->num);
Executed by:
  • libcrypto.so.44.0.1
4
100 (DES_cblock *)ctx->iv, &ctx->num);
executed 4 times by 1 test: DES_ofb64_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, &ctx->num);
Executed by:
  • libcrypto.so.44.0.1
4
101 return 1;
executed 4 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
4
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) {
inl >= ((size_...of(long)*8-2))Description
TRUEnever evaluated
FALSEevaluated 6 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-6
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 }
never executed: end of block
0
115 if (inl)
inlDescription
TRUEevaluated 6 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-6
116 DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data,
executed 6 times by 1 test: DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
6
117 (DES_cblock *)ctx->iv, ctx->encrypt);
executed 6 times by 1 test: DES_ncbc_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
6
118 return 1;
executed 6 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
6
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) {
inl >= ((size_...of(long)*8-2))Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-4
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 }
never executed: end of block
0
132 if (inl)
inlDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-4
133 DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data,
executed 4 times by 1 test: DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
4
134 (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
executed 4 times by 1 test: DES_cfb64_encrypt(in, out, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, &ctx->num, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
4
135 return 1;
executed 4 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
4
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)
inl < chunkDescription
TRUEnever evaluated
FALSEnever evaluated
0
148 chunk = inl;
never executed: chunk = inl;
0
149-
150 while (inl && inl >= chunk) {
inlDescription
TRUEnever evaluated
FALSEnever evaluated
inl >= chunkDescription
TRUEnever evaluated
FALSEnever evaluated
0
151 for (n = 0; n < chunk*8; ++n) {
n < chunk*8Description
TRUEnever evaluated
FALSEnever evaluated
0
152 c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
(in[n / 8] & (... (7 - n % 8)))Description
TRUEnever evaluated
FALSEnever evaluated
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 }
never executed: end of block
0
159 inl -= chunk;-
160 in += chunk;-
161 out += chunk;-
162 if (inl < chunk)
inl < chunkDescription
TRUEnever evaluated
FALSEnever evaluated
0
163 chunk = inl;
never executed: chunk = inl;
0
164 }
never executed: end of block
0
165-
166 return 1;
never executed: return 1;
0
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) {
inl >= ((size_...of(long)*8-2))Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-4
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 }
never executed: end of block
0
180 if (inl)
inlDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-4
181 DES_cfb_encrypt(in, out, 8, (long)inl, ctx->cipher_data,
executed 4 times by 1 test: DES_cfb_encrypt(in, out, 8, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
4
182 (DES_cblock *)ctx->iv, ctx->encrypt);
executed 4 times by 1 test: DES_cfb_encrypt(in, out, 8, (long)inl, ctx->cipher_data, (DES_cblock *)ctx->iv, ctx->encrypt);
Executed by:
  • libcrypto.so.44.0.1
4
183 return 1;
executed 4 times by 1 test: return 1;
Executed by:
  • libcrypto.so.44.0.1
4
184}-
185-
186BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64,
executed 625 times by 33 tests: return &des_cbc;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
executed 292 times by 33 tests: return &des_cfb64;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
executed 292 times by 33 tests: return &des_ofb;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
executed 292 times by 33 tests: return &des_ecb;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
292-625
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,
executed 292 times by 33 tests: return &des_cfb1;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
292
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,
executed 292 times by 33 tests: return &des_cfb8;
Executed by:
  • asn1test
  • base64test
  • bnaddsub
  • bntest
  • cipher_list
  • cipherstest
  • clienttest
  • configtest
  • dhtest
  • dsatest
  • ecdhtest
  • ecdsatest
  • ectest
  • enginetest
  • evptest
  • exptest
  • gost2814789t
  • hkdftest
  • keypairtest
  • libcrypto.so.44.0.1
  • mont
  • pbkdf2
  • pkcs7test
  • rc4test
  • rsa_test
  • ...
292
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 DES_set_key_unchecked(deskey, ctx->cipher_data);-
209 return 1;
executed 34 times by 2 tests: return 1;
Executed by:
  • evptest
  • libcrypto.so.44.0.1
34
210}-
211-
212static int-
213des_ctrl(EVP_CIPHER_CTX *c, int type, int arg, void *ptr)-
214{-
215 switch (type) {-
216 case EVP_CTRL_RAND_KEY:
never executed: case 0x6:
0
217 if (DES_random_key((DES_cblock *)ptr) == 0)
DES_random_key...ck *)ptr) == 0Description
TRUEnever evaluated
FALSEnever evaluated
0
218 return 0;
never executed: return 0;
0
219 return 1;
never executed: return 1;
0
220-
221 default:
never executed: default:
0
222 return -1;
never executed: return -1;
0
223 }-
224}-
225-
226#endif-
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