Initial support for Encrypted Data type generation.
[openssl.git] / crypto / cms / cms_asn1.c
1 /* crypto/cms/cms_asn1.c */
2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3  * project.
4  */
5 /* ====================================================================
6  * Copyright (c) 2008 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
54 #include <openssl/asn1t.h>
55 #include <openssl/pem.h>
56 #include "cms.h"
57 #include "cms_lcl.h"
58
59
60 ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
61         ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
62         ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
63 } ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)
64
65 ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
66         ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
67         ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
68 } ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)
69
70 ASN1_CHOICE(CMS_CertificateChoices) = {
71         ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509),
72         ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0),
73         ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1),
74         ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2),
75         ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3)
76 } ASN1_CHOICE_END(CMS_CertificateChoices)
77
78 ASN1_CHOICE(CMS_SignerIdentifier) = {
79         ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
80         ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
81 } ASN1_CHOICE_END(CMS_SignerIdentifier)
82
83 ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo) = {
84         ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT),
85         ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0)
86 } ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)
87
88 /* Minor tweak to operation: free up signer key, cert */
89 static int cms_si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
90                                                         void *exarg)
91         {
92         if(operation == ASN1_OP_FREE_POST)
93                 {
94                 CMS_SignerInfo *si = (CMS_SignerInfo *)*pval;
95                 if (si->pkey)
96                         EVP_PKEY_free(si->pkey);
97                 if (si->signer)
98                         X509_free(si->signer);
99                 }
100         return 1;
101         }
102
103 ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
104         ASN1_SIMPLE(CMS_SignerInfo, version, LONG),
105         ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
106         ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
107         ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
108         ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
109         ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
110         ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
111 } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)
112
113 ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
114         ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
115         ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
116 } ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)
117
118 ASN1_CHOICE(CMS_RevocationInfoChoice) = {
119         ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL),
120         ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1)
121 } ASN1_CHOICE_END(CMS_RevocationInfoChoice)
122
123 ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
124         ASN1_SIMPLE(CMS_SignedData, version, LONG),
125         ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
126         ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
127         ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
128         ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
129         ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
130 } ASN1_NDEF_SEQUENCE_END(CMS_SignedData)
131
132 ASN1_SEQUENCE(CMS_OriginatorInfo) = {
133         ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
134         ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1)
135 } ASN1_SEQUENCE_END(CMS_OriginatorInfo)
136
137 ASN1_NDEF_SEQUENCE(CMS_EncryptedContentInfo) = {
138         ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
139         ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
140         ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
141 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedContentInfo)
142
143 ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
144         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, version, LONG),
145         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
146         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
147         ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
148 } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)
149
150 ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
151         ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
152         ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
153 } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)
154
155 ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
156         ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
157         ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
158         ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
159 } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)
160
161 ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
162   ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
163   ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
164 } ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)
165
166 ASN1_SEQUENCE(CMS_RecipientEncryptedKey) = {
167         ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
168         ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
169 } ASN1_SEQUENCE_END(CMS_RecipientEncryptedKey)
170
171 ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
172   ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
173   ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
174 } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)
175
176 ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
177   ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
178   ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
179   ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
180 } ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)
181
182 ASN1_SEQUENCE(CMS_KeyAgreeRecipientInfo) = {
183         ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, version, LONG),
184         ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
185         ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
186         ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
187         ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
188 } ASN1_SEQUENCE_END(CMS_KeyAgreeRecipientInfo)
189
190 ASN1_SEQUENCE(CMS_KEKIdentifier) = {
191         ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
192         ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
193         ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
194 } ASN1_SEQUENCE_END(CMS_KEKIdentifier)
195
196 ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
197         ASN1_SIMPLE(CMS_KEKRecipientInfo, version, LONG),
198         ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
199         ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
200         ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
201 } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)
202
203 ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
204         ASN1_SIMPLE(CMS_PasswordRecipientInfo, version, LONG),
205         ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
206         ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
207         ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
208 } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)
209
210 ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
211   ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
212   ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
213 } ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)
214
215 /* Free up RecipientInfo additional data */
216 static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
217                                                         void *exarg)
218         {
219         if(operation == ASN1_OP_FREE_PRE)
220                 {
221                 CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
222                 if (ri->type == CMS_RECIPINFO_TRANS)
223                         {
224                         CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
225                         if (ktri->pkey)
226                                 EVP_PKEY_free(ktri->pkey);
227                         if (ktri->recip)
228                                 X509_free(ktri->recip);
229                         }
230                 else if (ri->type == CMS_RECIPINFO_KEK)
231                         {
232                         CMS_KEKRecipientInfo *kekri = ri->d.kekri;
233                         if (kekri->key)
234                                 {
235                                 OPENSSL_cleanse(kekri->key, kekri->keylen);
236                                 OPENSSL_free(kekri->key);
237                                 }
238                         }
239                 }
240         return 1;
241         }
242
243 ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
244         ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
245         ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
246         ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
247         ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
248         ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
249 } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)
250
251 ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
252         ASN1_SIMPLE(CMS_EnvelopedData, version, LONG),
253         ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
254         ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
255         ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
256         ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
257 } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)
258
259 ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
260         ASN1_SIMPLE(CMS_DigestedData, version, LONG),
261         ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
262         ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
263         ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
264 } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)
265
266 ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
267         ASN1_SIMPLE(CMS_EncryptedData, version, LONG),
268         ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
269         ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
270 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)
271
272 ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
273         ASN1_SIMPLE(CMS_AuthenticatedData, version, LONG),
274         ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
275         ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
276         ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
277         ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
278         ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
279         ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
280         ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
281         ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
282 } ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)
283
284 ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
285         ASN1_SIMPLE(CMS_CompressedData, version, LONG),
286         ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
287         ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
288 } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)
289
290 /* This is the ANY DEFINED BY table for the top level ContentInfo structure */
291
292 ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);
293
294 ASN1_ADB(CMS_ContentInfo) = {
295         ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
296         ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
297         ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
298         ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
299         ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
300         ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
301         ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
302 } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);
303
304 /* CMS streaming support */
305 static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
306                                                         void *exarg)
307         {
308         ASN1_STREAM_ARG *sarg = exarg;
309         CMS_ContentInfo *cms;
310         if (pval)
311                 cms = (CMS_ContentInfo *)*pval;
312         switch(operation)
313                 {
314
315                 case ASN1_OP_STREAM_PRE:
316                 if (CMS_stream(&sarg->boundary, cms) <= 0)
317                         return 0;
318                 case ASN1_OP_DETACHED_PRE:
319                 sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
320                 if (!sarg->ndef_bio)
321                         return 0;
322                 break;
323
324                 case ASN1_OP_STREAM_POST:
325                 case ASN1_OP_DETACHED_POST:
326                 if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
327                         return 0;
328                 break;
329
330                 }
331         return 1;
332         }
333
334 ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
335         ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
336         ASN1_ADB_OBJECT(CMS_ContentInfo)
337 } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)
338
339 /* Specials for signed attributes */
340
341 /* When signing attributes we want to reorder them to match the sorted
342  * encoding.
343  */
344
345 ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) = 
346         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
347 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)
348
349 /* When verifying attributes we need to use the received order. So 
350  * we use SEQUENCE OF and tag it to SET OF
351  */
352
353 ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) = 
354         ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
355                                 V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
356 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)
357