Absolute File Name: | /home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/ecdh/ech_lib.c |
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1 | /* $OpenBSD: ech_lib.c,v 1.14 2018/04/14 07:09:21 tb Exp $ */ | - | ||||||
2 | /* ==================================================================== | - | ||||||
3 | * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED. | - | ||||||
4 | * | - | ||||||
5 | * The Elliptic Curve Public-Key Crypto Library (ECC Code) included | - | ||||||
6 | * herein is developed by SUN MICROSYSTEMS, INC., and is contributed | - | ||||||
7 | * to the OpenSSL project. | - | ||||||
8 | * | - | ||||||
9 | * The ECC Code is licensed pursuant to the OpenSSL open source | - | ||||||
10 | * license provided below. | - | ||||||
11 | * | - | ||||||
12 | * The ECDH software is originally written by Douglas Stebila of | - | ||||||
13 | * Sun Microsystems Laboratories. | - | ||||||
14 | * | - | ||||||
15 | */ | - | ||||||
16 | /* ==================================================================== | - | ||||||
17 | * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved. | - | ||||||
18 | * | - | ||||||
19 | * Redistribution and use in source and binary forms, with or without | - | ||||||
20 | * modification, are permitted provided that the following conditions | - | ||||||
21 | * are met: | - | ||||||
22 | * | - | ||||||
23 | * 1. Redistributions of source code must retain the above copyright | - | ||||||
24 | * notice, this list of conditions and the following disclaimer. | - | ||||||
25 | * | - | ||||||
26 | * 2. Redistributions in binary form must reproduce the above copyright | - | ||||||
27 | * notice, this list of conditions and the following disclaimer in | - | ||||||
28 | * the documentation and/or other materials provided with the | - | ||||||
29 | * distribution. | - | ||||||
30 | * | - | ||||||
31 | * 3. All advertising materials mentioning features or use of this | - | ||||||
32 | * software must display the following acknowledgment: | - | ||||||
33 | * "This product includes software developed by the OpenSSL Project | - | ||||||
34 | * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" | - | ||||||
35 | * | - | ||||||
36 | * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to | - | ||||||
37 | * endorse or promote products derived from this software without | - | ||||||
38 | * prior written permission. For written permission, please contact | - | ||||||
39 | * openssl-core@OpenSSL.org. | - | ||||||
40 | * | - | ||||||
41 | * 5. Products derived from this software may not be called "OpenSSL" | - | ||||||
42 | * nor may "OpenSSL" appear in their names without prior written | - | ||||||
43 | * permission of the OpenSSL Project. | - | ||||||
44 | * | - | ||||||
45 | * 6. Redistributions of any form whatsoever must retain the following | - | ||||||
46 | * acknowledgment: | - | ||||||
47 | * "This product includes software developed by the OpenSSL Project | - | ||||||
48 | * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" | - | ||||||
49 | * | - | ||||||
50 | * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY | - | ||||||
51 | * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | - | ||||||
52 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | - | ||||||
53 | * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR | - | ||||||
54 | * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | - | ||||||
55 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | - | ||||||
56 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; | - | ||||||
57 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | - | ||||||
58 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, | - | ||||||
59 | * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) | - | ||||||
60 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED | - | ||||||
61 | * OF THE POSSIBILITY OF SUCH DAMAGE. | - | ||||||
62 | * ==================================================================== | - | ||||||
63 | * | - | ||||||
64 | * This product includes cryptographic software written by Eric Young | - | ||||||
65 | * (eay@cryptsoft.com). This product includes software written by Tim | - | ||||||
66 | * Hudson (tjh@cryptsoft.com). | - | ||||||
67 | * | - | ||||||
68 | */ | - | ||||||
69 | - | |||||||
70 | #include <string.h> | - | ||||||
71 | - | |||||||
72 | #include <openssl/opensslconf.h> | - | ||||||
73 | - | |||||||
74 | #include "ech_locl.h" | - | ||||||
75 | #ifndef OPENSSL_NO_ENGINE | - | ||||||
76 | #include <openssl/engine.h> | - | ||||||
77 | #endif | - | ||||||
78 | #include <openssl/err.h> | - | ||||||
79 | - | |||||||
80 | static const ECDH_METHOD *default_ECDH_method = NULL; | - | ||||||
81 | - | |||||||
82 | static void *ecdh_data_new(void); | - | ||||||
83 | static void *ecdh_data_dup(void *); | - | ||||||
84 | static void ecdh_data_free(void *); | - | ||||||
85 | - | |||||||
86 | void | - | ||||||
87 | ECDH_set_default_method(const ECDH_METHOD *meth) | - | ||||||
88 | { | - | ||||||
89 | default_ECDH_method = meth; | - | ||||||
90 | } never executed: end of block | 0 | ||||||
91 | - | |||||||
92 | const ECDH_METHOD * | - | ||||||
93 | ECDH_get_default_method(void) | - | ||||||
94 | { | - | ||||||
95 | if (!default_ECDH_method) {
| 24-58 | ||||||
96 | default_ECDH_method = ECDH_OpenSSL(); | - | ||||||
97 | } executed 24 times by 2 tests: end of block Executed by:
| 24 | ||||||
98 | return default_ECDH_method; executed 82 times by 2 tests: return default_ECDH_method; Executed by:
| 82 | ||||||
99 | } | - | ||||||
100 | - | |||||||
101 | int | - | ||||||
102 | ECDH_set_method(EC_KEY *eckey, const ECDH_METHOD *meth) | - | ||||||
103 | { | - | ||||||
104 | ECDH_DATA *ecdh; | - | ||||||
105 | - | |||||||
106 | ecdh = ecdh_check(eckey); | - | ||||||
107 | - | |||||||
108 | if (ecdh == NULL)
| 0 | ||||||
109 | return 0; never executed: return 0; | 0 | ||||||
110 | - | |||||||
111 | #ifndef OPENSSL_NO_ENGINE | - | ||||||
112 | ENGINE_finish(ecdh->engine); | - | ||||||
113 | ecdh->engine = NULL; | - | ||||||
114 | #endif | - | ||||||
115 | ecdh->meth = meth; | - | ||||||
116 | return 1; never executed: return 1; | 0 | ||||||
117 | } | - | ||||||
118 | - | |||||||
119 | static ECDH_DATA * | - | ||||||
120 | ECDH_DATA_new_method(ENGINE *engine) | - | ||||||
121 | { | - | ||||||
122 | ECDH_DATA *ret; | - | ||||||
123 | - | |||||||
124 | ret = malloc(sizeof(ECDH_DATA)); | - | ||||||
125 | if (ret == NULL) {
| 0-82 | ||||||
126 | ECDHerror(ERR_R_MALLOC_FAILURE); | - | ||||||
127 | return (NULL); never executed: return ( ((void *)0) ); | 0 | ||||||
128 | } | - | ||||||
129 | - | |||||||
130 | ret->init = NULL; | - | ||||||
131 | - | |||||||
132 | ret->meth = ECDH_get_default_method(); | - | ||||||
133 | ret->engine = engine; | - | ||||||
134 | #ifndef OPENSSL_NO_ENGINE | - | ||||||
135 | if (!ret->engine)
| 0-82 | ||||||
136 | ret->engine = ENGINE_get_default_ECDH(); executed 82 times by 2 tests: ret->engine = ENGINE_get_default_ECDH(); Executed by:
| 82 | ||||||
137 | if (ret->engine) {
| 0-82 | ||||||
138 | ret->meth = ENGINE_get_ECDH(ret->engine); | - | ||||||
139 | if (ret->meth == NULL) {
| 0 | ||||||
140 | ECDHerror(ERR_R_ENGINE_LIB); | - | ||||||
141 | ENGINE_finish(ret->engine); | - | ||||||
142 | free(ret); | - | ||||||
143 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||
144 | } | - | ||||||
145 | } never executed: end of block | 0 | ||||||
146 | #endif | - | ||||||
147 | - | |||||||
148 | ret->flags = ret->meth->flags; | - | ||||||
149 | CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ECDH, ret, &ret->ex_data); | - | ||||||
150 | return (ret); executed 82 times by 2 tests: return (ret); Executed by:
| 82 | ||||||
151 | } | - | ||||||
152 | - | |||||||
153 | static void * | - | ||||||
154 | ecdh_data_new(void) | - | ||||||
155 | { | - | ||||||
156 | return (void *)ECDH_DATA_new_method(NULL); executed 82 times by 2 tests: return (void *)ECDH_DATA_new_method( ((void *)0) ); Executed by:
| 82 | ||||||
157 | } | - | ||||||
158 | - | |||||||
159 | static void * | - | ||||||
160 | ecdh_data_dup(void *data) | - | ||||||
161 | { | - | ||||||
162 | ECDH_DATA *r = (ECDH_DATA *)data; | - | ||||||
163 | - | |||||||
164 | /* XXX: dummy operation */ | - | ||||||
165 | if (r == NULL)
| 0 | ||||||
166 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||
167 | - | |||||||
168 | return (void *)ecdh_data_new(); never executed: return (void *)ecdh_data_new(); | 0 | ||||||
169 | } | - | ||||||
170 | - | |||||||
171 | void | - | ||||||
172 | ecdh_data_free(void *data) | - | ||||||
173 | { | - | ||||||
174 | ECDH_DATA *r = (ECDH_DATA *)data; | - | ||||||
175 | - | |||||||
176 | #ifndef OPENSSL_NO_ENGINE | - | ||||||
177 | ENGINE_finish(r->engine); | - | ||||||
178 | #endif | - | ||||||
179 | - | |||||||
180 | CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ECDH, r, &r->ex_data); | - | ||||||
181 | - | |||||||
182 | freezero(r, sizeof(ECDH_DATA)); | - | ||||||
183 | } executed 82 times by 2 tests: end of block Executed by:
| 82 | ||||||
184 | - | |||||||
185 | ECDH_DATA * | - | ||||||
186 | ecdh_check(EC_KEY *key) | - | ||||||
187 | { | - | ||||||
188 | ECDH_DATA *ecdh_data; | - | ||||||
189 | - | |||||||
190 | void *data = EC_KEY_get_key_method_data(key, ecdh_data_dup, | - | ||||||
191 | ecdh_data_free, ecdh_data_free); | - | ||||||
192 | if (data == NULL) {
| 0-82 | ||||||
193 | ecdh_data = (ECDH_DATA *)ecdh_data_new(); | - | ||||||
194 | if (ecdh_data == NULL)
| 0-82 | ||||||
195 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||
196 | data = EC_KEY_insert_key_method_data(key, (void *)ecdh_data, | - | ||||||
197 | ecdh_data_dup, ecdh_data_free, ecdh_data_free); | - | ||||||
198 | if (data != NULL) {
| 0-82 | ||||||
199 | /* Another thread raced us to install the key_method | - | ||||||
200 | * data and won. */ | - | ||||||
201 | ecdh_data_free(ecdh_data); | - | ||||||
202 | ecdh_data = (ECDH_DATA *)data; | - | ||||||
203 | } never executed: end of block | 0 | ||||||
204 | } else executed 82 times by 2 tests: end of block Executed by:
| 82 | ||||||
205 | ecdh_data = (ECDH_DATA *)data; never executed: ecdh_data = (ECDH_DATA *)data; | 0 | ||||||
206 | - | |||||||
207 | return ecdh_data; executed 82 times by 2 tests: return ecdh_data; Executed by:
| 82 | ||||||
208 | } | - | ||||||
209 | - | |||||||
210 | int | - | ||||||
211 | ECDH_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func, | - | ||||||
212 | CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func) | - | ||||||
213 | { | - | ||||||
214 | return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ECDH, argl, argp, never executed: return CRYPTO_get_ex_new_index(13, argl, argp, new_func, dup_func, free_func); | 0 | ||||||
215 | new_func, dup_func, free_func); never executed: return CRYPTO_get_ex_new_index(13, argl, argp, new_func, dup_func, free_func); | 0 | ||||||
216 | } | - | ||||||
217 | - | |||||||
218 | int | - | ||||||
219 | ECDH_set_ex_data(EC_KEY *d, int idx, void *arg) | - | ||||||
220 | { | - | ||||||
221 | ECDH_DATA *ecdh; | - | ||||||
222 | ecdh = ecdh_check(d); | - | ||||||
223 | if (ecdh == NULL)
| 0 | ||||||
224 | return 0; never executed: return 0; | 0 | ||||||
225 | return (CRYPTO_set_ex_data(&ecdh->ex_data, idx, arg)); never executed: return (CRYPTO_set_ex_data(&ecdh->ex_data, idx, arg)); | 0 | ||||||
226 | } | - | ||||||
227 | - | |||||||
228 | void * | - | ||||||
229 | ECDH_get_ex_data(EC_KEY *d, int idx) | - | ||||||
230 | { | - | ||||||
231 | ECDH_DATA *ecdh; | - | ||||||
232 | ecdh = ecdh_check(d); | - | ||||||
233 | if (ecdh == NULL)
| 0 | ||||||
234 | return NULL; never executed: return ((void *)0) ; | 0 | ||||||
235 | return (CRYPTO_get_ex_data(&ecdh->ex_data, idx)); never executed: return (CRYPTO_get_ex_data(&ecdh->ex_data, idx)); | 0 | ||||||
236 | } | - | ||||||
237 | - | |||||||
238 | int | - | ||||||
239 | ECDH_size(const EC_KEY *d) | - | ||||||
240 | { | - | ||||||
241 | return ((EC_GROUP_get_degree(EC_KEY_get0_group(d)) + 7) / 8); executed 131 times by 2 tests: return ((EC_GROUP_get_degree(EC_KEY_get0_group(d)) + 7) / 8); Executed by:
| 131 | ||||||
242 | } | - | ||||||
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