2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2000 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
61 #include <openssl/asn1t.h>
62 #include <openssl/pkcs7.h>
64 /* PKCS#7 ASN1 module */
66 /* This is the ANY DEFINED BY table for the top level PKCS#7 structure */
68 ASN1_ADB_TEMPLATE(p7default) = ASN1_EXP_OPT(PKCS7, d.other, ASN1_ANY, 0);
71 ADB_ENTRY(NID_pkcs7_data, ASN1_EXP_OPT(PKCS7, d.data, ASN1_OCTET_STRING, 0)),
72 ADB_ENTRY(NID_pkcs7_signed, ASN1_EXP_OPT(PKCS7, d.sign, PKCS7_SIGNED, 0)),
73 ADB_ENTRY(NID_pkcs7_enveloped, ASN1_EXP_OPT(PKCS7, d.enveloped, PKCS7_ENVELOPE, 0)),
74 ADB_ENTRY(NID_pkcs7_signedAndEnveloped, ASN1_EXP_OPT(PKCS7, d.signed_and_enveloped, PKCS7_SIGN_ENVELOPE, 0)),
75 ADB_ENTRY(NID_pkcs7_digest, ASN1_EXP_OPT(PKCS7, d.digest, PKCS7_DIGEST, 0)),
76 ADB_ENTRY(NID_pkcs7_encrypted, ASN1_EXP_OPT(PKCS7, d.encrypted, PKCS7_ENCRYPT, 0))
77 } ASN1_ADB_END(PKCS7, 0, type, 0, &p7default_tt, NULL);
79 ASN1_SEQUENCE(PKCS7) = {
80 ASN1_SIMPLE(PKCS7, type, ASN1_OBJECT),
81 ASN1_ADB_OBJECT(PKCS7)
82 }ASN1_SEQUENCE_END(PKCS7);
84 IMPLEMENT_ASN1_FUNCTIONS(PKCS7)
86 ASN1_SEQUENCE(PKCS7_SIGNED) = {
87 ASN1_SIMPLE(PKCS7_SIGNED, version, ASN1_INTEGER),
88 ASN1_SET_OF(PKCS7_SIGNED, md_algs, X509_ALGOR),
89 ASN1_SIMPLE(PKCS7_SIGNED, contents, PKCS7),
90 ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNED, cert, X509, 0),
91 ASN1_IMP_SET_OF_OPT(PKCS7_SIGNED, crl, X509_CRL, 1),
92 ASN1_SET_OF(PKCS7_SIGNED, signer_info, PKCS7_SIGNER_INFO)
93 } ASN1_SEQUENCE_END(PKCS7_SIGNED);
95 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNED)
97 /* Minor tweak to operation: free up EVP_PKEY */
98 static int si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
100 if(operation == ASN1_OP_FREE_POST) {
101 PKCS7_SIGNER_INFO *si = (PKCS7_SIGNER_INFO *)*pval;
102 EVP_PKEY_free(si->pkey);
107 ASN1_SEQUENCE_cb(PKCS7_SIGNER_INFO, si_cb) = {
108 ASN1_SIMPLE(PKCS7_SIGNER_INFO, version, ASN1_INTEGER),
109 ASN1_SIMPLE(PKCS7_SIGNER_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
110 ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_alg, X509_ALGOR),
111 /* NB this should be a SET OF but we use a SEQUENCE OF so the
112 * original order * is retained when the structure is reencoded.
113 * Since the attributes are implicitly tagged this will not affect
116 ASN1_IMP_SEQUENCE_OF_OPT(PKCS7_SIGNER_INFO, auth_attr, X509_ATTRIBUTE, 0),
117 ASN1_SIMPLE(PKCS7_SIGNER_INFO, digest_enc_alg, X509_ALGOR),
118 ASN1_SIMPLE(PKCS7_SIGNER_INFO, enc_digest, ASN1_OCTET_STRING),
119 ASN1_IMP_SET_OF_OPT(PKCS7_SIGNER_INFO, unauth_attr, X509_ATTRIBUTE, 1)
120 } ASN1_SEQUENCE_END_cb(PKCS7_SIGNER_INFO, PKCS7_SIGNER_INFO);
122 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGNER_INFO)
124 ASN1_SEQUENCE(PKCS7_ISSUER_AND_SERIAL) = {
125 ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, issuer, X509_NAME),
126 ASN1_SIMPLE(PKCS7_ISSUER_AND_SERIAL, serial, ASN1_INTEGER)
127 } ASN1_SEQUENCE_END(PKCS7_ISSUER_AND_SERIAL);
129 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ISSUER_AND_SERIAL)
131 ASN1_SEQUENCE(PKCS7_ENVELOPE) = {
132 ASN1_SIMPLE(PKCS7_ENVELOPE, version, ASN1_INTEGER),
133 ASN1_SET_OF(PKCS7_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
134 ASN1_SIMPLE(PKCS7_ENVELOPE, enc_data, PKCS7_ENC_CONTENT)
135 } ASN1_SEQUENCE_END(PKCS7_ENVELOPE);
137 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENVELOPE)
139 /* Minor tweak to operation: free up X509 */
140 static int ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
142 if(operation == ASN1_OP_FREE_POST) {
143 PKCS7_RECIP_INFO *ri = (PKCS7_RECIP_INFO *)*pval;
149 ASN1_SEQUENCE_cb(PKCS7_RECIP_INFO, ri_cb) = {
150 ASN1_SIMPLE(PKCS7_RECIP_INFO, version, ASN1_INTEGER),
151 ASN1_SIMPLE(PKCS7_RECIP_INFO, issuer_and_serial, PKCS7_ISSUER_AND_SERIAL),
152 ASN1_SIMPLE(PKCS7_RECIP_INFO, key_enc_algor, X509_ALGOR),
153 ASN1_SIMPLE(PKCS7_RECIP_INFO, enc_key, ASN1_OCTET_STRING)
154 } ASN1_SEQUENCE_END_cb(PKCS7_RECIP_INFO, PKCS7_RECIP_INFO);
156 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_RECIP_INFO)
158 ASN1_SEQUENCE(PKCS7_ENC_CONTENT) = {
159 ASN1_SIMPLE(PKCS7_ENC_CONTENT, content_type, ASN1_OBJECT),
160 ASN1_SIMPLE(PKCS7_ENC_CONTENT, algorithm, X509_ALGOR),
161 ASN1_IMP_OPT(PKCS7_ENC_CONTENT, enc_data, ASN1_OCTET_STRING, 0)
162 } ASN1_SEQUENCE_END(PKCS7_ENC_CONTENT);
164 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENC_CONTENT)
166 ASN1_SEQUENCE(PKCS7_SIGN_ENVELOPE) = {
167 ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, version, ASN1_INTEGER),
168 ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, recipientinfo, PKCS7_RECIP_INFO),
169 ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, md_algs, X509_ALGOR),
170 ASN1_SIMPLE(PKCS7_SIGN_ENVELOPE, enc_data, PKCS7_ENC_CONTENT),
171 ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, cert, X509, 0),
172 ASN1_IMP_SET_OF_OPT(PKCS7_SIGN_ENVELOPE, crl, X509_CRL, 1),
173 ASN1_SET_OF(PKCS7_SIGN_ENVELOPE, signer_info, PKCS7_SIGNER_INFO)
174 } ASN1_SEQUENCE_END(PKCS7_SIGN_ENVELOPE);
176 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_SIGN_ENVELOPE)
178 ASN1_SEQUENCE(PKCS7_ENCRYPT) = {
179 ASN1_SIMPLE(PKCS7_ENCRYPT, version, ASN1_INTEGER),
180 ASN1_SIMPLE(PKCS7_ENCRYPT, enc_data, PKCS7_ENC_CONTENT)
181 } ASN1_SEQUENCE_END(PKCS7_ENCRYPT);
183 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_ENCRYPT)
185 ASN1_SEQUENCE(PKCS7_DIGEST) = {
186 ASN1_SIMPLE(PKCS7_DIGEST, version, ASN1_INTEGER),
187 ASN1_SIMPLE(PKCS7_DIGEST, md, X509_ALGOR),
188 ASN1_SIMPLE(PKCS7_DIGEST, contents, PKCS7),
189 ASN1_SIMPLE(PKCS7_DIGEST, digest, ASN1_OCTET_STRING)
190 } ASN1_SEQUENCE_END(PKCS7_DIGEST);
192 IMPLEMENT_ASN1_FUNCTIONS(PKCS7_DIGEST)
194 /* Specials for authenticated attributes */
196 /* When signing attributes we want to reorder them to match the sorted
200 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_SIGN) =
201 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
202 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_SIGN);
204 /* When verifying attributes we need to use the received order. So
205 * we use SEQUENCE OF and tag it to SET OF
208 ASN1_ITEM_TEMPLATE(PKCS7_ATTR_VERIFY) =
209 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
210 V_ASN1_SET, PKCS7_ATTRIBUTES, X509_ATTRIBUTE)
211 ASN1_ITEM_TEMPLATE_END(PKCS7_ATTR_VERIFY);