1 /*
2 * Copyright 2008-2020 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
88 ASN1_SEQUENCE(CMS_OriginatorInfo) = {
89 ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
90 ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
91 } static_ASN1_SEQUENCE_END(CMS_OriginatorInfo)
92
93 static int cms_ec_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
94 void *exarg)
95 {
96 CMS_EncryptedContentInfo *ec = (CMS_EncryptedContentInfo *)*pval;
97
98 if (operation == ASN1_OP_FREE_POST)
99 OPENSSL_clear_free(ec->key, ec->keylen);
100 return 1;
101 }
102
103 ASN1_NDEF_SEQUENCE_cb(CMS_EncryptedContentInfo, cms_ec_cb) = {
104 ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
105 ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
106 ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
107 } ASN1_NDEF_SEQUENCE_END_cb(CMS_EncryptedContentInfo, CMS_EncryptedContentInfo)
108
109 ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
110 ASN1_EMBED(CMS_KeyTransRecipientInfo, version, INT32),
111 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
112 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
113 ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
114 } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)
115
116 ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
117 ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
118 ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
119 } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)
120
121 ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
122 ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
123 ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
124 ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
125 } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)
126
127 ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
128 ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
129 ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
130 } static_ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)
131
132 static int cms_rek_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
133 void *exarg)
134 {
135 CMS_RecipientEncryptedKey *rek = (CMS_RecipientEncryptedKey *)*pval;
136 if (operation == ASN1_OP_FREE_POST) {
137 EVP_PKEY_free(rek->pkey);
138 }
139 return 1;
140 }
141
142 ASN1_SEQUENCE_cb(CMS_RecipientEncryptedKey, cms_rek_cb) = {
143 ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
144 ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
145 } ASN1_SEQUENCE_END_cb(CMS_RecipientEncryptedKey, CMS_RecipientEncryptedKey)
146
147 ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
148 ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
149 ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
150 } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)
151
152 ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
153 ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
154 ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
155 ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
156 } static_ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)
157
158 static int cms_kari_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
159 void *exarg)
160 {
161 CMS_KeyAgreeRecipientInfo *kari = (CMS_KeyAgreeRecipientInfo *)*pval;
162 if (operation == ASN1_OP_NEW_POST) {
163 kari->ctx = EVP_CIPHER_CTX_new();
164 if (kari->ctx == NULL)
165 return 0;
166 EVP_CIPHER_CTX_set_flags(kari->ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
167 kari->pctx = NULL;
168 } else if (operation == ASN1_OP_FREE_POST) {
169 EVP_PKEY_CTX_free(kari->pctx);
170 EVP_CIPHER_CTX_free(kari->ctx);
171 }
172 return 1;
173 }
174
175 ASN1_SEQUENCE_cb(CMS_KeyAgreeRecipientInfo, cms_kari_cb) = {
176 ASN1_EMBED(CMS_KeyAgreeRecipientInfo, version, INT32),
177 ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
178 ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
179 ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
180 ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
181 } ASN1_SEQUENCE_END_cb(CMS_KeyAgreeRecipientInfo, CMS_KeyAgreeRecipientInfo)
182
183 ASN1_SEQUENCE(CMS_KEKIdentifier) = {
184 ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
185 ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
186 ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
187 } static_ASN1_SEQUENCE_END(CMS_KEKIdentifier)
188
189 ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
190 ASN1_EMBED(CMS_KEKRecipientInfo, version, INT32),
191 ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
192 ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
193 ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
194 } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)
195
196 ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
197 ASN1_EMBED(CMS_PasswordRecipientInfo, version, INT32),
198 ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
199 ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
200 ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
201 } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)
202
203 ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
204 ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
205 ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
206 } static_ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)
207
208 /* Free up RecipientInfo additional data */
209 static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
210 void *exarg)
211 {
212 if (operation == ASN1_OP_FREE_PRE) {
213 CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
214 if (ri->type == CMS_RECIPINFO_TRANS) {
215 CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
216 EVP_PKEY_free(ktri->pkey);
217 X509_free(ktri->recip);
218 EVP_PKEY_CTX_free(ktri->pctx);
219 } else if (ri->type == CMS_RECIPINFO_KEK) {
220 CMS_KEKRecipientInfo *kekri = ri->d.kekri;
221 OPENSSL_clear_free(kekri->key, kekri->keylen);
222 } else if (ri->type == CMS_RECIPINFO_PASS) {
223 CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
224 OPENSSL_clear_free(pwri->pass, pwri->passlen);
225 }
226 }
227 return 1;
228 }
229
230 ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
231 ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
232 ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
233 ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
234 ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
235 ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
236 } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)
237
238 ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
239 ASN1_EMBED(CMS_EnvelopedData, version, INT32),
240 ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
241 ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
242 ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
243 ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
244 } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)
245
246 ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
247 ASN1_EMBED(CMS_DigestedData, version, INT32),
248 ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
249 ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
250 ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
251 } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)
252
253 ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
254 ASN1_EMBED(CMS_EncryptedData, version, INT32),
255 ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
256 ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
257 } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)
258
259 /* Defined in RFC 5083 - Section 2.1. AuthEnvelopedData Type */
260 ASN1_NDEF_SEQUENCE(CMS_AuthEnvelopedData) = {
261 ASN1_EMBED(CMS_AuthEnvelopedData, version, INT32),
262 ASN1_IMP_OPT(CMS_AuthEnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
263 ASN1_SET_OF(CMS_AuthEnvelopedData, recipientInfos, CMS_RecipientInfo),
264 ASN1_SIMPLE(CMS_AuthEnvelopedData, authEncryptedContentInfo, CMS_EncryptedContentInfo),
265 ASN1_IMP_SET_OF_OPT(CMS_AuthEnvelopedData, authAttrs, X509_ALGOR, 2),
266 ASN1_SIMPLE(CMS_AuthEnvelopedData, mac, ASN1_OCTET_STRING),
267 ASN1_IMP_SET_OF_OPT(CMS_AuthEnvelopedData, unauthAttrs, X509_ALGOR, 3)
268 } ASN1_NDEF_SEQUENCE_END(CMS_AuthEnvelopedData)
269
270 ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
271 ASN1_EMBED(CMS_AuthenticatedData, version, INT32),
272 ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
273 ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
274 ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
275 ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
276 ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
277 ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
278 ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
279 ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
280 } static_ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)
281
282 ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
283 ASN1_EMBED(CMS_CompressedData, version, INT32),
284 ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
285 ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
286 } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)
287
288 /* This is the ANY DEFINED BY table for the top level ContentInfo structure */
289
290 ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);
291
292 ASN1_ADB(CMS_ContentInfo) = {
293 ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
294 ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
295 ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
296 ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
297 ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
298 ADB_ENTRY(NID_id_smime_ct_authEnvelopedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authEnvelopedData, CMS_AuthEnvelopedData, 0)),
299 ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
300 ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
301 } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);
302
303 /* CMS streaming support */
cms_cb(int operation,ASN1_VALUE ** pval,const ASN1_ITEM * it,void * exarg)304 static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
305 void *exarg)
306 {
307 ASN1_STREAM_ARG *sarg = exarg;
308 CMS_ContentInfo *cms = NULL;
309 if (pval)
310 cms = (CMS_ContentInfo *)*pval;
311 else
312 return 1;
313 switch (operation) {
314
315 case ASN1_OP_STREAM_PRE:
316 if (CMS_stream(&sarg->boundary, cms) <= 0)
317 return 0;
318 /* fall thru */
319 case ASN1_OP_DETACHED_PRE:
320 sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
321 if (!sarg->ndef_bio)
322 return 0;
323 break;
324
325 case ASN1_OP_STREAM_POST:
326 case ASN1_OP_DETACHED_POST:
327 if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
328 return 0;
329 break;
330
331 case ASN1_OP_FREE_POST:
332 OPENSSL_free(cms->ctx.propq);
333 break;
334
335 }
336 return 1;
337 }
338
339 ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
340 ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
341 ASN1_ADB_OBJECT(CMS_ContentInfo)
342 } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)
343
344 /* Specials for signed attributes */
345
346 /*
347 * When signing attributes we want to reorder them to match the sorted
348 * encoding.
349 */
350
351 ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) =
352 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
353 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)
354
355 /*
356 * When verifying attributes we need to use the received order. So we use
357 * SEQUENCE OF and tag it to SET OF
358 */
359
360 ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) =
361 ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
362 V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
363 ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)
364
365
366
367 ASN1_CHOICE(CMS_ReceiptsFrom) = {
368 ASN1_IMP_EMBED(CMS_ReceiptsFrom, d.allOrFirstTier, INT32, 0),
369 ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
370 } static_ASN1_CHOICE_END(CMS_ReceiptsFrom)
371
372 ASN1_SEQUENCE(CMS_ReceiptRequest) = {
373 ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
374 ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
375 ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
376 } ASN1_SEQUENCE_END(CMS_ReceiptRequest)
377
378 ASN1_SEQUENCE(CMS_Receipt) = {
379 ASN1_EMBED(CMS_Receipt, version, INT32),
380 ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
381 ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
382 ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
383 } ASN1_SEQUENCE_END(CMS_Receipt)
384
385 /*
386 * Utilities to encode the CMS_SharedInfo structure used during key
387 * derivation.
388 */
389
390 typedef struct {
391 X509_ALGOR *keyInfo;
392 ASN1_OCTET_STRING *entityUInfo;
393 ASN1_OCTET_STRING *suppPubInfo;
394 } CMS_SharedInfo;
395
396 ASN1_SEQUENCE(CMS_SharedInfo) = {
397 ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR),
398 ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0),
399 ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2),
400 } static_ASN1_SEQUENCE_END(CMS_SharedInfo)
401
402 int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg,
403 ASN1_OCTET_STRING *ukm, int keylen)
404 {
405 union {
406 CMS_SharedInfo *pecsi;
407 ASN1_VALUE *a;
408 } intsi = {
409 NULL
410 };
411
412 ASN1_OCTET_STRING oklen;
413 unsigned char kl[4];
414 CMS_SharedInfo ecsi;
415
416 keylen <<= 3;
417 kl[0] = (keylen >> 24) & 0xff;
418 kl[1] = (keylen >> 16) & 0xff;
419 kl[2] = (keylen >> 8) & 0xff;
420 kl[3] = keylen & 0xff;
421 oklen.length = 4;
422 oklen.data = kl;
423 oklen.type = V_ASN1_OCTET_STRING;
424 oklen.flags = 0;
425 ecsi.keyInfo = kekalg;
426 ecsi.entityUInfo = ukm;
427 ecsi.suppPubInfo = &oklen;
428 intsi.pecsi = &ecsi;
429 return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo));
430 }
431