OpenCoverage

a_sign.c

Absolute File Name:/home/opencoverage/opencoverage/guest-scripts/libressl/src/crypto/asn1/a_sign.c
Source codeSwitch to Preprocessed file
LineSourceCount
1/* $OpenBSD: a_sign.c,v 1.23 2017/05/02 03:59:44 deraadt 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 * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.-
60 *-
61 * Redistribution and use in source and binary forms, with or without-
62 * modification, are permitted provided that the following conditions-
63 * are met:-
64 *-
65 * 1. Redistributions of source code must retain the above copyright-
66 * notice, this list of conditions and the following disclaimer.-
67 *-
68 * 2. Redistributions in binary form must reproduce the above copyright-
69 * notice, this list of conditions and the following disclaimer in-
70 * the documentation and/or other materials provided with the-
71 * distribution.-
72 *-
73 * 3. All advertising materials mentioning features or use of this-
74 * software must display the following acknowledgment:-
75 * "This product includes software developed by the OpenSSL Project-
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"-
77 *-
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to-
79 * endorse or promote products derived from this software without-
80 * prior written permission. For written permission, please contact-
81 * openssl-core@openssl.org.-
82 *-
83 * 5. Products derived from this software may not be called "OpenSSL"-
84 * nor may "OpenSSL" appear in their names without prior written-
85 * permission of the OpenSSL Project.-
86 *-
87 * 6. Redistributions of any form whatsoever must retain the following-
88 * acknowledgment:-
89 * "This product includes software developed by the OpenSSL Project-
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"-
91 *-
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY-
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR-
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR-
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,-
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT-
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;-
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,-
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)-
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED-
103 * OF THE POSSIBILITY OF SUCH DAMAGE.-
104 * ====================================================================-
105 *-
106 * This product includes cryptographic software written by Eric Young-
107 * (eay@cryptsoft.com). This product includes software written by Tim-
108 * Hudson (tjh@cryptsoft.com).-
109 *-
110 */-
111-
112#include <sys/types.h>-
113-
114#include <stdio.h>-
115#include <string.h>-
116#include <time.h>-
117-
118#include <openssl/bn.h>-
119#include <openssl/buffer.h>-
120#include <openssl/err.h>-
121#include <openssl/evp.h>-
122#include <openssl/objects.h>-
123#include <openssl/x509.h>-
124-
125#include "asn1_locl.h"-
126-
127int-
128ASN1_item_sign(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,-
129 ASN1_BIT_STRING *signature, void *asn, EVP_PKEY *pkey, const EVP_MD *type)-
130{-
131 EVP_MD_CTX ctx;-
132 EVP_MD_CTX_init(&ctx);-
133 if (!EVP_DigestSignInit(&ctx, NULL, type, NULL, pkey)) {
!EVP_DigestSig...d *)0) , pkey)Description
TRUEnever evaluated
FALSEnever evaluated
0
134 EVP_MD_CTX_cleanup(&ctx);-
135 return 0;
never executed: return 0;
0
136 }-
137 return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx);
never executed: return ASN1_item_sign_ctx(it, algor1, algor2, signature, asn, &ctx);
0
138}-
139-
140-
141int-
142ASN1_item_sign_ctx(const ASN1_ITEM *it, X509_ALGOR *algor1, X509_ALGOR *algor2,-
143 ASN1_BIT_STRING *signature, void *asn, EVP_MD_CTX *ctx)-
144{-
145 const EVP_MD *type;-
146 EVP_PKEY *pkey;-
147 unsigned char *buf_in = NULL, *buf_out = NULL;-
148 size_t inl = 0, outl = 0, outll = 0;-
149 int signid, paramtype;-
150 int rv;-
151-
152 type = EVP_MD_CTX_md(ctx);-
153 pkey = EVP_PKEY_CTX_get0_pkey(ctx->pctx);-
154-
155 if (!type || !pkey) {
!typeDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
!pkeyDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
156 ASN1error(ASN1_R_CONTEXT_NOT_INITIALISED);-
157 return 0;
never executed: return 0;
0
158 }-
159-
160 if (pkey->ameth->item_sign) {
pkey->ameth->item_signDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
1
161 rv = pkey->ameth->item_sign(ctx, it, asn, algor1, algor2,-
162 signature);-
163 if (rv == 1)
rv == 1Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
164 outl = signature->length;
never executed: outl = signature->length;
0
165 /* Return value meanings:-
166 * <=0: error.-
167 * 1: method does everything.-
168 * 2: carry on as normal.-
169 * 3: ASN1 method sets algorithm identifiers: just sign.-
170 */-
171 if (rv <= 0)
rv <= 0Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
172 ASN1error(ERR_R_EVP_LIB);
never executed: ERR_put_error(13,(0xfff),(6),__FILE__,172);
0
173 if (rv <= 1)
rv <= 1Description
TRUEnever evaluated
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-1
174 goto err;
never executed: goto err;
0
175 } else
executed 1 time by 1 test: end of block
Executed by:
  • libcrypto.so.44.0.1
1
176 rv = 2;
executed 1 time by 1 test: rv = 2;
Executed by:
  • libcrypto.so.44.0.1
1
177-
178 if (rv == 2) {
rv == 2Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
179 if (type->flags & EVP_MD_FLAG_PKEY_METHOD_SIGNATURE) {
type->flags & 0x0004Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
180 if (!pkey->ameth ||
!pkey->amethDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
181 !OBJ_find_sigid_by_algs(&signid,
!OBJ_find_sigi...meth->pkey_id)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
182 EVP_MD_nid(type), pkey->ameth->pkey_id)) {
!OBJ_find_sigi...meth->pkey_id)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
183 ASN1error(ASN1_R_DIGEST_AND_KEY_TYPE_NOT_SUPPORTED);-
184 return 0;
never executed: return 0;
0
185 }-
186 } else
executed 2 times by 1 test: end of block
Executed by:
  • libcrypto.so.44.0.1
2
187 signid = type->pkey_type;
never executed: signid = type->pkey_type;
0
188-
189 if (pkey->ameth->pkey_flags & ASN1_PKEY_SIGPARAM_NULL)
pkey->ameth->pkey_flags & 0x4Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEevaluated 1 time by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
1
190 paramtype = V_ASN1_NULL;
executed 1 time by 1 test: paramtype = 5;
Executed by:
  • libcrypto.so.44.0.1
1
191 else-
192 paramtype = V_ASN1_UNDEF;
executed 1 time by 1 test: paramtype = -1;
Executed by:
  • libcrypto.so.44.0.1
1
193-
194 if (algor1)
algor1Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
195 X509_ALGOR_set0(algor1,
executed 2 times by 1 test: X509_ALGOR_set0(algor1, OBJ_nid2obj(signid), paramtype, ((void *)0) );
Executed by:
  • libcrypto.so.44.0.1
2
196 OBJ_nid2obj(signid), paramtype, NULL);
executed 2 times by 1 test: X509_ALGOR_set0(algor1, OBJ_nid2obj(signid), paramtype, ((void *)0) );
Executed by:
  • libcrypto.so.44.0.1
2
197 if (algor2)
algor2Description
TRUEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
FALSEnever evaluated
0-2
198 X509_ALGOR_set0(algor2,
executed 2 times by 1 test: X509_ALGOR_set0(algor2, OBJ_nid2obj(signid), paramtype, ((void *)0) );
Executed by:
  • libcrypto.so.44.0.1
2
199 OBJ_nid2obj(signid), paramtype, NULL);
executed 2 times by 1 test: X509_ALGOR_set0(algor2, OBJ_nid2obj(signid), paramtype, ((void *)0) );
Executed by:
  • libcrypto.so.44.0.1
2
200-
201 }
executed 2 times by 1 test: end of block
Executed by:
  • libcrypto.so.44.0.1
2
202-
203 inl = ASN1_item_i2d(asn, &buf_in, it);-
204 outll = outl = EVP_PKEY_size(pkey);-
205 buf_out = malloc(outl);-
206 if ((buf_in == NULL) || (buf_out == NULL)) {
(buf_in == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
(buf_out == ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
207 outl = 0;-
208 ASN1error(ERR_R_MALLOC_FAILURE);-
209 goto err;
never executed: goto err;
0
210 }-
211-
212 if (!EVP_DigestSignUpdate(ctx, buf_in, inl) ||
!EVP_DigestUpd...tx,buf_in,inl)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
213 !EVP_DigestSignFinal(ctx, buf_out, &outl)) {
!EVP_DigestSig...uf_out, &outl)Description
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
214 outl = 0;-
215 ASN1error(ERR_R_EVP_LIB);-
216 goto err;
never executed: goto err;
0
217 }-
218 free(signature->data);-
219 signature->data = buf_out;-
220 buf_out = NULL;-
221 signature->length = outl;-
222 /* In the interests of compatibility, I'll make sure that-
223 * the bit string has a 'not-used bits' value of 0-
224 */-
225 signature->flags &= ~(ASN1_STRING_FLAG_BITS_LEFT|0x07);-
226 signature->flags |= ASN1_STRING_FLAG_BITS_LEFT;-
227-
228err:
code before this statement executed 2 times by 1 test: err:
Executed by:
  • libcrypto.so.44.0.1
2
229 EVP_MD_CTX_cleanup(ctx);-
230 freezero((char *)buf_in, inl);-
231 freezero((char *)buf_out, outll);-
232 return (outl);
executed 2 times by 1 test: return (outl);
Executed by:
  • libcrypto.so.44.0.1
2
233}-
Source codeSwitch to Preprocessed file
Generated by Squish Coco 4.2.2