1 /*
2 * Copyright 2008-2024 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
17 ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
18 ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
19 ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
20 } ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)
21
22 ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
23 ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
24 ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
25 } static_ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)
26
27 ASN1_CHOICE(CMS_CertificateChoices) = {
28 ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509),
29 ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0),
30 ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1),
31 ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2),
32 ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3)
33 } ASN1_CHOICE_END(CMS_CertificateChoices)
34
35 ASN1_CHOICE(CMS_SignerIdentifier) = {
36 ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
37 ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
38 } static_ASN1_CHOICE_END(CMS_SignerIdentifier)
39
40 ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo) = {
41 ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT),
42 ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0)
43 } static_ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)
44
45 /* Minor tweak to operation: free up signer key, cert */
46 static int cms_si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
47 void *exarg)
48 {
49 if (operation == ASN1_OP_FREE_POST) {
50 CMS_SignerInfo *si = (CMS_SignerInfo *)*pval;
51 EVP_PKEY_free(si->pkey);
52 X509_free(si->signer);
53 EVP_MD_CTX_free(si->mctx);
54 EVP_PKEY_CTX_free(si->pctx);
55 }
56 return 1;
57 }
58
59 ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
60 ASN1_EMBED(CMS_SignerInfo, version, INT32),
61 ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
62 ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
63 ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
64 ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
65 ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
66 ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
67 } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)
68
69 ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
70 ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
71 ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
72 } static_ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)
73
74 ASN1_CHOICE(CMS_RevocationInfoChoice) = {
75 ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL),
76 ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1)
77 } ASN1_CHOICE_END(CMS_RevocationInfoChoice)
78
79 ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
80 ASN1_EMBED(CMS_SignedData, version, INT32),
81 ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
82 ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
83 ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
84 ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
85 ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
86 } ASN1_NDEF_SEQUENCE_END(CMS_SignedData)
87 IMPLEMENT_ASN1_ALLOC_FUNCTIONS(CMS_SignedData)
88
89 ASN1_SEQUENCE(CMS_OriginatorInfo) = {
90 ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
91 ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
92 } static_ASN1_SEQUENCE_END(CMS_OriginatorInfo)
93
94 static int cms_ec_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
95 void *exarg)
96 {
97 CMS_EncryptedContentInfo *ec = (CMS_EncryptedContentInfo *)*pval;
98
99 if (operation == ASN1_OP_FREE_POST)
100 OPENSSL_clear_free(ec->key, ec->keylen);
101 return 1;
102 }
103
104 ASN1_NDEF_SEQUENCE_cb(CMS_EncryptedContentInfo, cms_ec_cb) = {
105 ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
106 ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
107 ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
108 } ASN1_NDEF_SEQUENCE_END_cb(CMS_EncryptedContentInfo, CMS_EncryptedContentInfo)
109
110 ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
111 ASN1_EMBED(CMS_KeyTransRecipientInfo, version, INT32),
112 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
113 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
114 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
115 } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)
116
117 ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
118 ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
119 ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
120 } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)
121
122 ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
123 ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
124 ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
125 ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
126 } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)
127
128 ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
129 ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
130 ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
131 } static_ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)
132
133 static int cms_rek_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
134 void *exarg)
135 {
136 CMS_RecipientEncryptedKey *rek = (CMS_RecipientEncryptedKey *)*pval;
137 if (operation == ASN1_OP_FREE_POST) {
138 EVP_PKEY_free(rek->pkey);
139 }
140 return 1;
141 }
142
143 ASN1_SEQUENCE_cb(CMS_RecipientEncryptedKey, cms_rek_cb) = {
144 ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
145 ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
146 } ASN1_SEQUENCE_END_cb(CMS_RecipientEncryptedKey, CMS_RecipientEncryptedKey)
147
148 ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
149 ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
150 ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
151 } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)
152
153 ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
154 ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
155 ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
156 ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
157 } static_ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)
158
159 static int cms_kari_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
160 void *exarg)
161 {
162 CMS_KeyAgreeRecipientInfo *kari = (CMS_KeyAgreeRecipientInfo *)*pval;
163 if (operation == ASN1_OP_NEW_POST) {
164 kari->ctx = EVP_CIPHER_CTX_new();
165 if (kari->ctx == NULL)
166 return 0;
167 EVP_CIPHER_CTX_set_flags(kari->ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
168 kari->pctx = NULL;
169 } else if (operation == ASN1_OP_FREE_POST) {
170 EVP_PKEY_CTX_free(kari->pctx);
171 EVP_CIPHER_CTX_free(kari->ctx);
172 }
173 return 1;
174 }
175
176 ASN1_SEQUENCE_cb(CMS_KeyAgreeRecipientInfo, cms_kari_cb) = {
177 ASN1_EMBED(CMS_KeyAgreeRecipientInfo, version, INT32),
178 ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
179 ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
180 ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
181 ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
182 } ASN1_SEQUENCE_END_cb(CMS_KeyAgreeRecipientInfo, CMS_KeyAgreeRecipientInfo)
183
184 ASN1_SEQUENCE(CMS_KEKIdentifier) = {
185 ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
186 ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
187 ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
188 } static_ASN1_SEQUENCE_END(CMS_KEKIdentifier)
189
190 ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
191 ASN1_EMBED(CMS_KEKRecipientInfo, version, INT32),
192 ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
193 ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
194 ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
195 } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)
196
197 ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
198 ASN1_EMBED(CMS_PasswordRecipientInfo, version, INT32),
199 ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
200 ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
201 ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
202 } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)
203
204 ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
205 ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
206 ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
207 } static_ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)
208
209 /* Free up RecipientInfo additional data */
210 static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
211 void *exarg)
212 {
213 if (operation == ASN1_OP_FREE_PRE) {
214 CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
215 if (ri->type == CMS_RECIPINFO_TRANS) {
216 CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
217 EVP_PKEY_free(ktri->pkey);
218 X509_free(ktri->recip);
219 EVP_PKEY_CTX_free(ktri->pctx);
220 } else if (ri->type == CMS_RECIPINFO_KEK) {
221 CMS_KEKRecipientInfo *kekri = ri->d.kekri;
222 OPENSSL_clear_free(kekri->key, kekri->keylen);
223 } else if (ri->type == CMS_RECIPINFO_PASS) {
224 CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
225 OPENSSL_clear_free(pwri->pass, pwri->passlen);
226 }
227 }
228 return 1;
229 }
230
231 ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
232 ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
233 ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
234 ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
235 ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
236 ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
237 } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)
238
239 ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
240 ASN1_EMBED(CMS_EnvelopedData, version, INT32),
241 ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
242 ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
243 ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
244 ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
245 } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)
246
247 ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
248 ASN1_EMBED(CMS_DigestedData, version, INT32),
249 ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
250 ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
251 ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
252 } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)
253
254 ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
255 ASN1_EMBED(CMS_EncryptedData, version, INT32),
256 ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
257 ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
258 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)
259
260 /* Defined in RFC 5083 - Section 2.1. AuthEnvelopedData Type */
261 ASN1_NDEF_SEQUENCE(CMS_AuthEnvelopedData) = {
262 ASN1_EMBED(CMS_AuthEnvelopedData, version, INT32),
263 ASN1_IMP_OPT(CMS_AuthEnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
264 ASN1_SET_OF(CMS_AuthEnvelopedData, recipientInfos, CMS_RecipientInfo),
265 ASN1_SIMPLE(CMS_AuthEnvelopedData, authEncryptedContentInfo, CMS_EncryptedContentInfo),
266 ASN1_IMP_SET_OF_OPT(CMS_AuthEnvelopedData, authAttrs, X509_ALGOR, 2),
267 ASN1_SIMPLE(CMS_AuthEnvelopedData, mac, ASN1_OCTET_STRING),
268 ASN1_IMP_SET_OF_OPT(CMS_AuthEnvelopedData, unauthAttrs, X509_ALGOR, 3)
269 } ASN1_NDEF_SEQUENCE_END(CMS_AuthEnvelopedData)
270
271 ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
272 ASN1_EMBED(CMS_AuthenticatedData, version, INT32),
273 ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
274 ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
275 ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
276 ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
277 ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
278 ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
279 ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
280 ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
281 } static_ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)
282
283 ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
284 ASN1_EMBED(CMS_CompressedData, version, INT32),
285 ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
286 ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
287 } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)
288
289 /* This is the ANY DEFINED BY table for the top level ContentInfo structure */
290
291 ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);
292
293 ASN1_ADB(CMS_ContentInfo) = {
294 ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
295 ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
296 ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
297 ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
298 ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
299 ADB_ENTRY(NID_id_smime_ct_authEnvelopedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authEnvelopedData, CMS_AuthEnvelopedData, 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 */
cms_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)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 = NULL;
310 if (pval)
311 cms = (CMS_ContentInfo *)*pval;
312 else
313 return 1;
314 switch (operation) {
315
316 case ASN1_OP_STREAM_PRE:
317 if (CMS_stream(&sarg->boundary, cms) <= 0)
318 return 0;
319 /* fall through */
320 case ASN1_OP_DETACHED_PRE:
321 sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
322 if (!sarg->ndef_bio)
323 return 0;
324 break;
325
326 case ASN1_OP_STREAM_POST:
327 case ASN1_OP_DETACHED_POST:
328 if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
329 return 0;
330 break;
331
332 case ASN1_OP_FREE_POST:
333 OPENSSL_free(cms->ctx.propq);
334 break;
335
336 }
337 return 1;
338 }
339
340 ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
341 ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
342 ASN1_ADB_OBJECT(CMS_ContentInfo)
343 } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)
344
345 /* Specials for signed attributes */
346
347 /*
348 * When signing attributes we want to reorder them to match the sorted
349 * encoding.
350 */
351
352 ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) =
353 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
354 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)
355
356 /*
357 * When verifying attributes we need to use the received order. So we use
358 * SEQUENCE OF and tag it to SET OF
359 */
360
361 ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) =
362 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
363 V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
364 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)
365
366
367
368 ASN1_CHOICE(CMS_ReceiptsFrom) = {
369 ASN1_IMP_EMBED(CMS_ReceiptsFrom, d.allOrFirstTier, INT32, 0),
370 ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
371 } static_ASN1_CHOICE_END(CMS_ReceiptsFrom)
372
373 ASN1_SEQUENCE(CMS_ReceiptRequest) = {
374 ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
375 ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
376 ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
377 } ASN1_SEQUENCE_END(CMS_ReceiptRequest)
378
379 ASN1_SEQUENCE(CMS_Receipt) = {
380 ASN1_EMBED(CMS_Receipt, version, INT32),
381 ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
382 ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
383 ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
384 } ASN1_SEQUENCE_END(CMS_Receipt)
385
386 /*
387 * Utilities to encode the CMS_SharedInfo structure used during key
388 * derivation.
389 */
390
391 typedef struct {
392 X509_ALGOR *keyInfo;
393 ASN1_OCTET_STRING *entityUInfo;
394 ASN1_OCTET_STRING *suppPubInfo;
395 } CMS_SharedInfo;
396
397 ASN1_SEQUENCE(CMS_SharedInfo) = {
398 ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR),
399 ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0),
400 ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2),
401 } static_ASN1_SEQUENCE_END(CMS_SharedInfo)
402
403 int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg,
404 ASN1_OCTET_STRING *ukm, int keylen)
405 {
406 union {
407 CMS_SharedInfo *pecsi;
408 ASN1_VALUE *a;
409 } intsi = {
410 NULL
411 };
412
413 ASN1_OCTET_STRING oklen;
414 unsigned char kl[4];
415 CMS_SharedInfo ecsi;
416
417 keylen <<= 3;
418 kl[0] = (keylen >> 24) & 0xff;
419 kl[1] = (keylen >> 16) & 0xff;
420 kl[2] = (keylen >> 8) & 0xff;
421 kl[3] = keylen & 0xff;
422 oklen.length = 4;
423 oklen.data = kl;
424 oklen.type = V_ASN1_OCTET_STRING;
425 oklen.flags = 0;
426 ecsi.keyInfo = kekalg;
427 ecsi.entityUInfo = ukm;
428 ecsi.suppPubInfo = &oklen;
429 intsi.pecsi = &ecsi;
430 return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo));
431 }
432
