ts_verify_ctx.c revision 238405 
1/* crypto/ts/ts_verify_ctx.c */
2/* Written by Zoltan Glozik (zglozik@stones.com) for the OpenSSL
3 * project 2003.
4 */
5/* ====================================================================
6 * Copyright (c) 2006 The OpenSSL Project.  All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 *    notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 *    notice, this list of conditions and the following disclaimer in
17 *    the documentation and/or other materials provided with the
18 *    distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 *    software must display the following acknowledgment:
22 *    "This product includes software developed by the OpenSSL Project
23 *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 *    endorse or promote products derived from this software without
27 *    prior written permission. For written permission, please contact
28 *    licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 *    nor may "OpenSSL" appear in their names without prior written
32 *    permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 *    acknowledgment:
36 *    "This product includes software developed by the OpenSSL Project
37 *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com).  This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include "cryptlib.h"
60#include <openssl/objects.h>
61#include <openssl/ts.h>
62
63TS_VERIFY_CTX *TS_VERIFY_CTX_new(void)
64	{
65	TS_VERIFY_CTX *ctx =
66		(TS_VERIFY_CTX *) OPENSSL_malloc(sizeof(TS_VERIFY_CTX));
67	if (ctx)
68		memset(ctx, 0, sizeof(TS_VERIFY_CTX));
69	else
70		TSerr(TS_F_TS_VERIFY_CTX_NEW, ERR_R_MALLOC_FAILURE);
71	return ctx;
72	}
73
74void TS_VERIFY_CTX_init(TS_VERIFY_CTX *ctx)
75	{
76	OPENSSL_assert(ctx != NULL);
77	memset(ctx, 0, sizeof(TS_VERIFY_CTX));
78	}
79
80void TS_VERIFY_CTX_free(TS_VERIFY_CTX *ctx)
81	{
82	if (!ctx) return;
83
84	TS_VERIFY_CTX_cleanup(ctx);
85	OPENSSL_free(ctx);
86	}
87
88void TS_VERIFY_CTX_cleanup(TS_VERIFY_CTX *ctx)
89	{
90	if (!ctx) return;
91
92	X509_STORE_free(ctx->store);
93	sk_X509_pop_free(ctx->certs, X509_free);
94
95	ASN1_OBJECT_free(ctx->policy);
96
97	X509_ALGOR_free(ctx->md_alg);
98	OPENSSL_free(ctx->imprint);
99
100	BIO_free_all(ctx->data);
101
102	ASN1_INTEGER_free(ctx->nonce);
103
104	GENERAL_NAME_free(ctx->tsa_name);
105
106	TS_VERIFY_CTX_init(ctx);
107	}
108
109TS_VERIFY_CTX *TS_REQ_to_TS_VERIFY_CTX(TS_REQ *req, TS_VERIFY_CTX *ctx)
110	{
111	TS_VERIFY_CTX *ret = ctx;
112	ASN1_OBJECT *policy;
113	TS_MSG_IMPRINT *imprint;
114	X509_ALGOR *md_alg;
115	ASN1_OCTET_STRING *msg;
116	const ASN1_INTEGER *nonce;
117
118	OPENSSL_assert(req != NULL);
119	if (ret)
120		TS_VERIFY_CTX_cleanup(ret);
121	else
122		if (!(ret = TS_VERIFY_CTX_new())) return NULL;
123
124	/* Setting flags. */
125	ret->flags = TS_VFY_ALL_IMPRINT & ~(TS_VFY_TSA_NAME | TS_VFY_SIGNATURE);
126
127	/* Setting policy. */
128	if ((policy = TS_REQ_get_policy_id(req)) != NULL)
129		{
130		if (!(ret->policy = OBJ_dup(policy))) goto err;
131		}
132	else
133		ret->flags &= ~TS_VFY_POLICY;
134
135	/* Setting md_alg, imprint and imprint_len. */
136	imprint = TS_REQ_get_msg_imprint(req);
137	md_alg = TS_MSG_IMPRINT_get_algo(imprint);
138	if (!(ret->md_alg = X509_ALGOR_dup(md_alg))) goto err;
139	msg = TS_MSG_IMPRINT_get_msg(imprint);
140	ret->imprint_len = ASN1_STRING_length(msg);
141	if (!(ret->imprint = OPENSSL_malloc(ret->imprint_len))) goto err;
142	memcpy(ret->imprint, ASN1_STRING_data(msg), ret->imprint_len);
143
144	/* Setting nonce. */
145	if ((nonce = TS_REQ_get_nonce(req)) != NULL)
146		{
147		if (!(ret->nonce = ASN1_INTEGER_dup(nonce))) goto err;
148		}
149	else
150		ret->flags &= ~TS_VFY_NONCE;
151
152	return ret;
153 err:
154	if (ctx)
155		TS_VERIFY_CTX_cleanup(ctx);
156	else
157		TS_VERIFY_CTX_free(ret);
158	return NULL;
159	}
160