1 /*
2 * Copyright 2008-2025 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10 #include <openssl/asn1t.h>
11 #include <openssl/pem.h>
12 #include <openssl/x509v3.h>
13 #include <openssl/cms.h>
14 #include "cms_local.h"
15
16 ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
17 ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
18 ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
19 } ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)
20
21 ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
22 ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
23 ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
24 } static_ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)
25
26 ASN1_CHOICE(CMS_CertificateChoices)
27 = { ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509), ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0), ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1), ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2), ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3) } ASN1_CHOICE_END(CMS_CertificateChoices)
28
29 ASN1_CHOICE(CMS_SignerIdentifier) = {
30 ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
31 ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
32 } static_ASN1_CHOICE_END(CMS_SignerIdentifier)
33
34 ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo)
35 = { ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT), ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0) } static_ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)
36
37 /* Minor tweak to operation: free up signer key, cert */
38 static int cms_si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
39 {
40 if (operation == ASN1_OP_FREE_POST) {
41 CMS_SignerInfo *si = (CMS_SignerInfo *)*pval;
42 EVP_PKEY_free(si->pkey);
43 X509_free(si->signer);
44 EVP_MD_CTX_free(si->mctx);
45 EVP_PKEY_CTX_free(si->pctx);
46 }
47 return 1;
48 }
49
50 ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
51 ASN1_EMBED(CMS_SignerInfo, version, INT32),
52 ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
53 ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
54 ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
55 ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
56 ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
57 ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
58 } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)
59
60 ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
61 ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
62 ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
63 } static_ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)
64
65 ASN1_CHOICE(CMS_RevocationInfoChoice)
66 = { ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL), ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1) } ASN1_CHOICE_END(CMS_RevocationInfoChoice)
67
68 ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
69 ASN1_EMBED(CMS_SignedData, version, INT32),
70 ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
71 ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
72 ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
73 ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
74 ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
75 } ASN1_NDEF_SEQUENCE_END(CMS_SignedData)
76 IMPLEMENT_ASN1_ALLOC_FUNCTIONS(CMS_SignedData)
77
78 ASN1_SEQUENCE(CMS_OriginatorInfo) = {
79 ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
80 ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
81 } static_ASN1_SEQUENCE_END(CMS_OriginatorInfo)
82
83 static int cms_ec_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
84 {
85 CMS_EncryptedContentInfo *ec = (CMS_EncryptedContentInfo *)*pval;
86
87 if (operation == ASN1_OP_FREE_POST)
88 OPENSSL_clear_free(ec->key, ec->keylen);
89 return 1;
90 }
91
92 ASN1_NDEF_SEQUENCE_cb(CMS_EncryptedContentInfo, cms_ec_cb) = {
93 ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
94 ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
95 ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
96 } ASN1_NDEF_SEQUENCE_END_cb(CMS_EncryptedContentInfo, CMS_EncryptedContentInfo)
97
98 ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
99 ASN1_EMBED(CMS_KeyTransRecipientInfo, version, INT32),
100 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
101 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
102 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
103 } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)
104
105 ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
106 ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
107 ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
108 } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)
109
110 ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
111 ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
112 ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
113 ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
114 } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)
115
116 ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
117 ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
118 ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
119 } static_ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)
120
121 static int cms_rek_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
122 {
123 CMS_RecipientEncryptedKey *rek = (CMS_RecipientEncryptedKey *)*pval;
124 if (operation == ASN1_OP_FREE_POST) {
125 EVP_PKEY_free(rek->pkey);
126 }
127 return 1;
128 }
129
130 ASN1_SEQUENCE_cb(CMS_RecipientEncryptedKey, cms_rek_cb) = {
131 ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
132 ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
133 } ASN1_SEQUENCE_END_cb(CMS_RecipientEncryptedKey, CMS_RecipientEncryptedKey)
134
135 ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
136 ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
137 ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
138 } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)
139
140 ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
141 ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
142 ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
143 ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
144 } static_ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)
145
146 static int cms_kari_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
147 {
148 CMS_KeyAgreeRecipientInfo *kari = (CMS_KeyAgreeRecipientInfo *)*pval;
149 if (operation == ASN1_OP_NEW_POST) {
150 kari->ctx = EVP_CIPHER_CTX_new();
151 if (kari->ctx == NULL)
152 return 0;
153 EVP_CIPHER_CTX_set_flags(kari->ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
154 kari->pctx = NULL;
155 } else if (operation == ASN1_OP_FREE_POST) {
156 EVP_PKEY_CTX_free(kari->pctx);
157 EVP_CIPHER_CTX_free(kari->ctx);
158 }
159 return 1;
160 }
161
162 ASN1_SEQUENCE_cb(CMS_KeyAgreeRecipientInfo, cms_kari_cb) = {
163 ASN1_EMBED(CMS_KeyAgreeRecipientInfo, version, INT32),
164 ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
165 ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
166 ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
167 ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
168 } ASN1_SEQUENCE_END_cb(CMS_KeyAgreeRecipientInfo, CMS_KeyAgreeRecipientInfo)
169
170 ASN1_SEQUENCE(CMS_KEKIdentifier) = {
171 ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
172 ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
173 ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
174 } static_ASN1_SEQUENCE_END(CMS_KEKIdentifier)
175
176 ASN1_SEQUENCE(CMS_KEKRecipientInfo)
177 = { ASN1_EMBED(CMS_KEKRecipientInfo, version, INT32), ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier), ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR), ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING) } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)
178
179 ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
180 ASN1_EMBED(CMS_PasswordRecipientInfo, version, INT32),
181 ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
182 ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
183 ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
184 } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)
185
186 ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
187 ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
188 ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
189 } static_ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)
190
191 /* Free up RecipientInfo additional data */
192 static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, void *exarg)
193 {
194 if (operation == ASN1_OP_FREE_PRE) {
195 CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
196 if (ri->type == CMS_RECIPINFO_TRANS) {
197 CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
198 EVP_PKEY_free(ktri->pkey);
199 X509_free(ktri->recip);
200 EVP_PKEY_CTX_free(ktri->pctx);
201 } else if (ri->type == CMS_RECIPINFO_KEK) {
202 CMS_KEKRecipientInfo *kekri = ri->d.kekri;
203 OPENSSL_clear_free(kekri->key, kekri->keylen);
204 } else if (ri->type == CMS_RECIPINFO_PASS) {
205 CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
206 OPENSSL_clear_free(pwri->pass, pwri->passlen);
207 }
208 }
209 return 1;
210 }
211
212 ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
213 ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
214 ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
215 ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
216 ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
217 ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
218 } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)
219
220 ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
221 ASN1_EMBED(CMS_EnvelopedData, version, INT32),
222 ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
223 ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
224 ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
225 ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
226 } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)
227 IMPLEMENT_ASN1_DUP_FUNCTION(CMS_EnvelopedData)
228
229 ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
230 ASN1_EMBED(CMS_DigestedData, version, INT32),
231 ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
232 ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
233 ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
234 } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)
235
236 ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
237 ASN1_EMBED(CMS_EncryptedData, version, INT32),
238 ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
239 ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
240 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)
241
242 /* Defined in RFC 5083 - Section 2.1. AuthEnvelopedData Type */
243 ASN1_NDEF_SEQUENCE(CMS_AuthEnvelopedData) = {
244 ASN1_EMBED(CMS_AuthEnvelopedData, version, INT32),
245 ASN1_IMP_OPT(CMS_AuthEnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
246 ASN1_SET_OF(CMS_AuthEnvelopedData, recipientInfos, CMS_RecipientInfo),
247 ASN1_SIMPLE(CMS_AuthEnvelopedData, authEncryptedContentInfo, CMS_EncryptedContentInfo),
248 ASN1_IMP_SET_OF_OPT(CMS_AuthEnvelopedData, authAttrs, X509_ALGOR, 2),
249 ASN1_SIMPLE(CMS_AuthEnvelopedData, mac, ASN1_OCTET_STRING),
250 ASN1_IMP_SET_OF_OPT(CMS_AuthEnvelopedData, unauthAttrs, X509_ALGOR, 3)
251 } ASN1_NDEF_SEQUENCE_END(CMS_AuthEnvelopedData)
252
253 ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
254 ASN1_EMBED(CMS_AuthenticatedData, version, INT32),
255 ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
256 ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
257 ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
258 ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
259 ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
260 ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
261 ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
262 ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
263 } static_ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)
264
265 ASN1_NDEF_SEQUENCE(CMS_CompressedData)
266 = {
267 ASN1_EMBED(CMS_CompressedData, version, INT32),
268 ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
269 ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
270 } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)
271
272 /* This is the ANY DEFINED BY table for the top level ContentInfo structure */
273
274 ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);
275
276 ASN1_ADB(CMS_ContentInfo) = {
277 ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
278 ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
279 ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
280 ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
281 ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
282 ADB_ENTRY(NID_id_smime_ct_authEnvelopedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authEnvelopedData, CMS_AuthEnvelopedData, 0)),
283 ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
284 ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
285 } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);
286
287 /* CMS streaming support */
cms_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)288 static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
289 void *exarg)
290 {
291 ASN1_STREAM_ARG *sarg = exarg;
292 CMS_ContentInfo *cms = NULL;
293 if (pval)
294 cms = (CMS_ContentInfo *)*pval;
295 else
296 return 1;
297 switch (operation) {
298
299 case ASN1_OP_STREAM_PRE:
300 if (CMS_stream(&sarg->boundary, cms) <= 0)
301 return 0;
302 /* fall through */
303 case ASN1_OP_DETACHED_PRE:
304 sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
305 if (!sarg->ndef_bio)
306 return 0;
307 break;
308
309 case ASN1_OP_STREAM_POST:
310 case ASN1_OP_DETACHED_POST:
311 if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
312 return 0;
313 break;
314
315 case ASN1_OP_FREE_POST:
316 OPENSSL_free(cms->ctx.propq);
317 break;
318 }
319 return 1;
320 }
321
322 ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
323 ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
324 ASN1_ADB_OBJECT(CMS_ContentInfo)
325 } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)
326
327 /* Specials for signed attributes */
328
329 /*
330 * When signing attributes we want to reorder them to match the sorted
331 * encoding.
332 */
333
334 ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) = ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
335 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)
336
337 /*
338 * When verifying attributes we need to use the received order. So we use
339 * SEQUENCE OF and tag it to SET OF
340 */
341
342 ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) = ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
343 V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
344 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)
345
346 ASN1_CHOICE(CMS_ReceiptsFrom) = {
347 ASN1_IMP_EMBED(CMS_ReceiptsFrom, d.allOrFirstTier, INT32, 0),
348 ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
349 } static_ASN1_CHOICE_END(CMS_ReceiptsFrom)
350
351 ASN1_SEQUENCE(CMS_ReceiptRequest)
352 = { ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING), ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom), ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES) } ASN1_SEQUENCE_END(CMS_ReceiptRequest)
353
354 ASN1_SEQUENCE(CMS_Receipt) = {
355 ASN1_EMBED(CMS_Receipt, version, INT32),
356 ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
357 ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
358 ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
359 } ASN1_SEQUENCE_END(CMS_Receipt)
360
361 /*
362 * Utilities to encode the CMS_SharedInfo structure used during key
363 * derivation.
364 */
365
366 typedef struct {
367 X509_ALGOR *keyInfo;
368 ASN1_OCTET_STRING *entityUInfo;
369 ASN1_OCTET_STRING *suppPubInfo;
370 } CMS_SharedInfo;
371
372 ASN1_SEQUENCE(CMS_SharedInfo) = {
373 ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR),
374 ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0),
375 ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2),
376 } static_ASN1_SEQUENCE_END(CMS_SharedInfo)
377
378 int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg, ASN1_OCTET_STRING *ukm, int keylen)
379 {
380 union {
381 CMS_SharedInfo *pecsi;
382 ASN1_VALUE *a;
383 } intsi = {
384 NULL
385 };
386
387 ASN1_OCTET_STRING oklen;
388 unsigned char kl[4];
389 CMS_SharedInfo ecsi;
390
391 keylen <<= 3;
392 kl[0] = (keylen >> 24) & 0xff;
393 kl[1] = (keylen >> 16) & 0xff;
394 kl[2] = (keylen >> 8) & 0xff;
395 kl[3] = keylen & 0xff;
396 oklen.length = 4;
397 oklen.data = kl;
398 oklen.type = V_ASN1_OCTET_STRING;
399 oklen.flags = 0;
400 ecsi.keyInfo = kekalg;
401 ecsi.entityUInfo = ukm;
402 ecsi.suppPubInfo = &oklen;
403 intsi.pecsi = &ecsi;
404 return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo));
405 }
406