Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/evp/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 | - | |||||||||||||
71 | static int des_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key, | - | ||||||||||||
72 | const unsigned char *iv, int enc); | - | ||||||||||||
73 | static 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 | - | |||||||||||||
77 | static int | - | ||||||||||||
78 | des_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;
| 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:
| 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:
| 462 | ||||||||||||
84 | return 1; executed 20 times by 2 tests: return 1; Executed by:
| 20 | ||||||||||||
85 | } | - | ||||||||||||
86 | - | |||||||||||||
87 | static int | - | ||||||||||||
88 | des_ofb_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | - | ||||||||||||
89 | const unsigned char *in, size_t inl) | - | ||||||||||||
90 | { | - | ||||||||||||
91 | while (inl >= EVP_MAXCHUNK) {
| 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)
| 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:
| 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:
| 4 | ||||||||||||
101 | return 1; executed 4 times by 1 test: return 1; Executed by:
| 4 | ||||||||||||
102 | } | - | ||||||||||||
103 | - | |||||||||||||
104 | static int | - | ||||||||||||
105 | des_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | - | ||||||||||||
106 | const unsigned char *in, size_t inl) | - | ||||||||||||
107 | { | - | ||||||||||||
108 | while (inl >= EVP_MAXCHUNK) {
| 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)
| 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:
| 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:
| 6 | ||||||||||||
118 | return 1; executed 6 times by 1 test: return 1; Executed by:
| 6 | ||||||||||||
119 | } | - | ||||||||||||
120 | - | |||||||||||||
121 | static int | - | ||||||||||||
122 | des_cfb64_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | - | ||||||||||||
123 | const unsigned char *in, size_t inl) | - | ||||||||||||
124 | { | - | ||||||||||||
125 | while (inl >= EVP_MAXCHUNK) {
| 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)
| 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:
| 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:
| 4 | ||||||||||||
135 | return 1; executed 4 times by 1 test: return 1; Executed by:
| 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 */ | - | ||||||||||||
140 | static int | - | ||||||||||||
141 | des_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)
| 0 | ||||||||||||
148 | chunk = inl; never executed: chunk = inl; | 0 | ||||||||||||
149 | - | |||||||||||||
150 | while (inl && inl >= chunk) {
| 0 | ||||||||||||
151 | for (n = 0; n < chunk*8; ++n) {
| 0 | ||||||||||||
152 | c[0] = (in[n / 8] & (1 << (7 - n % 8))) ? 0x80 : 0;
| 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)
| 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 | - | |||||||||||||
169 | static int | - | ||||||||||||
170 | des_cfb8_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out, | - | ||||||||||||
171 | const unsigned char *in, size_t inl) | - | ||||||||||||
172 | { | - | ||||||||||||
173 | while (inl >= EVP_MAXCHUNK) {
| 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)
| 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:
| 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:
| 4 | ||||||||||||
183 | return 1; executed 4 times by 1 test: return 1; Executed by:
| 4 | ||||||||||||
184 | } | - | ||||||||||||
185 | - | |||||||||||||
186 | BLOCK_CIPHER_defs(des, DES_key_schedule, NID_des, 8, 8, 8, 64, executed 625 times by 33 tests: return &des_cbc; Executed by:
executed 292 times by 33 tests: return &des_cfb64; Executed by:
executed 292 times by 33 tests: return &des_ofb; Executed by:
executed 292 times by 33 tests: return &des_ecb; Executed by:
| 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 | - | |||||||||||||
192 | BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8, 8, 1, executed 292 times by 33 tests: return &des_cfb1; Executed by:
| 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 | - | |||||||||||||
197 | BLOCK_CIPHER_def_cfb(des, DES_key_schedule, NID_des, 8, 8, 8, executed 292 times by 33 tests: return &des_cfb8; Executed by:
| 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 | - | |||||||||||||
202 | static int | - | ||||||||||||
203 | des_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:
| 34 | ||||||||||||
210 | } | - | ||||||||||||
211 | - | |||||||||||||
212 | static int | - | ||||||||||||
213 | des_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)
| 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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