/src/libressl/crypto/cms/cms_dd.c

Source (jump to first uncovered line)
/* $OpenBSD: cms_dd.c,v 1.14 2019/08/11 11:04:18 jsing Exp $ */
/*
 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
 * project.
 */
/* ====================================================================
 * Copyright (c) 2008 The OpenSSL Project.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. All advertising materials mentioning features or use of this
 *    software must display the following acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
 *
 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
 *    endorse or promote products derived from this software without
 *    prior written permission. For written permission, please contact
 *    licensing@OpenSSL.org.
 *
 * 5. Products derived from this software may not be called "OpenSSL"
 *    nor may "OpenSSL" appear in their names without prior written
 *    permission of the OpenSSL Project.
 *
 * 6. Redistributions of any form whatsoever must retain the following
 *    acknowledgment:
 *    "This product includes software developed by the OpenSSL Project
 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
 *
 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
 * OF THE POSSIBILITY OF SUCH DAMAGE.
 * ====================================================================
 */

#include <string.h>

#include "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/pem.h>
#include <openssl/x509v3.h>
#include <openssl/err.h>
#include <openssl/cms.h>
#include "cms_lcl.h"

/* CMS DigestedData Utilities */

CMS_ContentInfo *
cms_DigestedData_create(const EVP_MD *md)
{
  CMS_ContentInfo *cms;
  CMS_DigestedData *dd;

  cms = CMS_ContentInfo_new();
  if (cms == NULL)
    return NULL;

  dd = (CMS_DigestedData *)ASN1_item_new(&CMS_DigestedData_it);

  if (dd == NULL)
    goto err;

  cms->contentType = OBJ_nid2obj(NID_pkcs7_digest);
  cms->d.digestedData = dd;

  dd->version = 0;
  dd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data);

  X509_ALGOR_set_md(dd->digestAlgorithm, md);

  return cms;

 err:
  CMS_ContentInfo_free(cms);

  return NULL;
}

BIO *
cms_DigestedData_init_bio(CMS_ContentInfo *cms)
{
  CMS_DigestedData *dd;

  dd = cms->d.digestedData;

  return cms_DigestAlgorithm_init_bio(dd->digestAlgorithm);
}

int
cms_DigestedData_do_final(CMS_ContentInfo *cms, BIO *chain, int verify)
{
  EVP_MD_CTX *mctx = EVP_MD_CTX_new();
  unsigned char md[EVP_MAX_MD_SIZE];
  unsigned int mdlen;
  int r = 0;
  CMS_DigestedData *dd;

  if (mctx == NULL) {
    CMSerror(ERR_R_MALLOC_FAILURE);
    goto err;
  }

  dd = cms->d.digestedData;

  if (!cms_DigestAlgorithm_find_ctx(mctx, chain, dd->digestAlgorithm))
    goto err;

  if (EVP_DigestFinal_ex(mctx, md, &mdlen) <= 0)
    goto err;

  if (verify) {
    if (mdlen != (unsigned int)dd->digest->length) {
      CMSerror(CMS_R_MESSAGEDIGEST_WRONG_LENGTH);
      goto err;
    }

    if (memcmp(md, dd->digest->data, mdlen))
      CMSerror(CMS_R_VERIFICATION_FAILURE);
    else
      r = 1;
  } else {
    if (!ASN1_STRING_set(dd->digest, md, mdlen))
      goto err;
    r = 1;
  }

 err:
  EVP_MD_CTX_free(mctx);

  return r;
}

Line	Count	Source (jump to first uncovered line)
1		/* $OpenBSD: cms_dd.c,v 1.14 2019/08/11 11:04:18 jsing Exp $ */
2		/*
3		* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
4		* project.
5		*/
6		/* ====================================================================
7		* Copyright (c) 2008 The OpenSSL Project. All rights reserved.
8		*
9		* Redistribution and use in source and binary forms, with or without
10		* modification, are permitted provided that the following conditions
11		* are met:
12		*
13		* 1. Redistributions of source code must retain the above copyright
14		* notice, this list of conditions and the following disclaimer.
15		*
16		* 2. Redistributions in binary form must reproduce the above copyright
17		* notice, this list of conditions and the following disclaimer in
18		* the documentation and/or other materials provided with the
19		* distribution.
20		*
21		* 3. All advertising materials mentioning features or use of this
22		* software must display the following acknowledgment:
23		* "This product includes software developed by the OpenSSL Project
24		* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
25		*
26		* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27		* endorse or promote products derived from this software without
28		* prior written permission. For written permission, please contact
29		* licensing@OpenSSL.org.
30		*
31		* 5. Products derived from this software may not be called "OpenSSL"
32		* nor may "OpenSSL" appear in their names without prior written
33		* permission of the OpenSSL Project.
34		*
35		* 6. Redistributions of any form whatsoever must retain the following
36		* acknowledgment:
37		* "This product includes software developed by the OpenSSL Project
38		* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
39		*
40		* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41		* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43		* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44		* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46		* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50		* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51		* OF THE POSSIBILITY OF SUCH DAMAGE.
52		* ====================================================================
53		*/
54
55		#include <string.h>
56
57		#include "cryptlib.h"
58		#include <openssl/asn1t.h>
59		#include <openssl/pem.h>
60		#include <openssl/x509v3.h>
61		#include <openssl/err.h>
62		#include <openssl/cms.h>
63		#include "cms_lcl.h"
64
65		/* CMS DigestedData Utilities */
66
67		CMS_ContentInfo *
68		cms_DigestedData_create(const EVP_MD *md)
69	0	{
70	0	CMS_ContentInfo *cms;
71	0	CMS_DigestedData *dd;
72
73	0	cms = CMS_ContentInfo_new();
74	0	if (cms == NULL)
75	0	return NULL;
76
77	0	dd = (CMS_DigestedData *)ASN1_item_new(&CMS_DigestedData_it);
78
79	0	if (dd == NULL)
80	0	goto err;
81
82	0	cms->contentType = OBJ_nid2obj(NID_pkcs7_digest);
83	0	cms->d.digestedData = dd;
84
85	0	dd->version = 0;
86	0	dd->encapContentInfo->eContentType = OBJ_nid2obj(NID_pkcs7_data);
87
88	0	X509_ALGOR_set_md(dd->digestAlgorithm, md);
89
90	0	return cms;
91
92	0	err:
93	0	CMS_ContentInfo_free(cms);
94
95	0	return NULL;
96	0	}
97
98		BIO *
99		cms_DigestedData_init_bio(CMS_ContentInfo *cms)
100	0	{
101	0	CMS_DigestedData *dd;
102
103	0	dd = cms->d.digestedData;
104
105	0	return cms_DigestAlgorithm_init_bio(dd->digestAlgorithm);
106	0	}
107
108		int
109		cms_DigestedData_do_final(CMS_ContentInfo cms, BIO chain, int verify)
110	0	{
111	0	EVP_MD_CTX *mctx = EVP_MD_CTX_new();
112	0	unsigned char md[EVP_MAX_MD_SIZE];
113	0	unsigned int mdlen;
114	0	int r = 0;
115	0	CMS_DigestedData *dd;
116
117	0	if (mctx == NULL) {
118	0	CMSerror(ERR_R_MALLOC_FAILURE);
119	0	goto err;
120	0	}
121
122	0	dd = cms->d.digestedData;
123
124	0	if (!cms_DigestAlgorithm_find_ctx(mctx, chain, dd->digestAlgorithm))
125	0	goto err;
126
127	0	if (EVP_DigestFinal_ex(mctx, md, &mdlen) <= 0)
128	0	goto err;
129
130	0	if (verify) {
131	0	if (mdlen != (unsigned int)dd->digest->length) {
132	0	CMSerror(CMS_R_MESSAGEDIGEST_WRONG_LENGTH);
133	0	goto err;
134	0	}
135
136	0	if (memcmp(md, dd->digest->data, mdlen))
137	0	CMSerror(CMS_R_VERIFICATION_FAILURE);
138	0	else
139	0	r = 1;
140	0	} else {
141	0	if (!ASN1_STRING_set(dd->digest, md, mdlen))
142	0	goto err;
143	0	r = 1;
144	0	}
145
146	0	err:
147	0	EVP_MD_CTX_free(mctx);
148
149	0	return r;
150	0	}

Coverage Report

Created: 2022-08-24 06:30