1 | /* |
2 | * Copyright 2008-2016 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 | } |
55 | return 1; |
56 | } |
57 | |
58 | ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = { |
59 | ASN1_EMBED(CMS_SignerInfo, version, INT32), |
60 | ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier), |
61 | ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR), |
62 | ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0), |
63 | ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR), |
64 | ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING), |
65 | ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1) |
66 | } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo) |
67 | |
68 | ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = { |
69 | ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT), |
70 | ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY) |
71 | } static_ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat) |
72 | |
73 | ASN1_CHOICE(CMS_RevocationInfoChoice) = { |
74 | ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL), |
75 | ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1) |
76 | } ASN1_CHOICE_END(CMS_RevocationInfoChoice) |
77 | |
78 | ASN1_NDEF_SEQUENCE(CMS_SignedData) = { |
79 | ASN1_EMBED(CMS_SignedData, version, INT32), |
80 | ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR), |
81 | ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo), |
82 | ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0), |
83 | ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1), |
84 | ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo) |
85 | } ASN1_NDEF_SEQUENCE_END(CMS_SignedData) |
86 | |
87 | ASN1_SEQUENCE(CMS_OriginatorInfo) = { |
88 | ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0), |
89 | ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1) |
90 | } static_ASN1_SEQUENCE_END(CMS_OriginatorInfo) |
91 | |
92 | ASN1_NDEF_SEQUENCE(CMS_EncryptedContentInfo) = { |
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 | } static_ASN1_NDEF_SEQUENCE_END(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, |
122 | void *exarg) |
123 | { |
124 | CMS_RecipientEncryptedKey *rek = (CMS_RecipientEncryptedKey *)*pval; |
125 | if (operation == ASN1_OP_FREE_POST) { |
126 | EVP_PKEY_free(rek->pkey); |
127 | } |
128 | return 1; |
129 | } |
130 | |
131 | ASN1_SEQUENCE_cb(CMS_RecipientEncryptedKey, cms_rek_cb) = { |
132 | ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier), |
133 | ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING) |
134 | } ASN1_SEQUENCE_END_cb(CMS_RecipientEncryptedKey, CMS_RecipientEncryptedKey) |
135 | |
136 | ASN1_SEQUENCE(CMS_OriginatorPublicKey) = { |
137 | ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR), |
138 | ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING) |
139 | } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey) |
140 | |
141 | ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = { |
142 | ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber), |
143 | ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0), |
144 | ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1) |
145 | } static_ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey) |
146 | |
147 | static int cms_kari_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
148 | void *exarg) |
149 | { |
150 | CMS_KeyAgreeRecipientInfo *kari = (CMS_KeyAgreeRecipientInfo *)*pval; |
151 | if (operation == ASN1_OP_NEW_POST) { |
152 | kari->ctx = EVP_CIPHER_CTX_new(); |
153 | if (kari->ctx == NULL) |
154 | return 0; |
155 | EVP_CIPHER_CTX_set_flags(kari->ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW); |
156 | kari->pctx = NULL; |
157 | } else if (operation == ASN1_OP_FREE_POST) { |
158 | EVP_PKEY_CTX_free(kari->pctx); |
159 | EVP_CIPHER_CTX_free(kari->ctx); |
160 | } |
161 | return 1; |
162 | } |
163 | |
164 | ASN1_SEQUENCE_cb(CMS_KeyAgreeRecipientInfo, cms_kari_cb) = { |
165 | ASN1_EMBED(CMS_KeyAgreeRecipientInfo, version, INT32), |
166 | ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0), |
167 | ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1), |
168 | ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR), |
169 | ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey) |
170 | } ASN1_SEQUENCE_END_cb(CMS_KeyAgreeRecipientInfo, CMS_KeyAgreeRecipientInfo) |
171 | |
172 | ASN1_SEQUENCE(CMS_KEKIdentifier) = { |
173 | ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING), |
174 | ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME), |
175 | ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute) |
176 | } static_ASN1_SEQUENCE_END(CMS_KEKIdentifier) |
177 | |
178 | ASN1_SEQUENCE(CMS_KEKRecipientInfo) = { |
179 | ASN1_EMBED(CMS_KEKRecipientInfo, version, INT32), |
180 | ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier), |
181 | ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR), |
182 | ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING) |
183 | } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo) |
184 | |
185 | ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = { |
186 | ASN1_EMBED(CMS_PasswordRecipientInfo, version, INT32), |
187 | ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0), |
188 | ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR), |
189 | ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING) |
190 | } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo) |
191 | |
192 | ASN1_SEQUENCE(CMS_OtherRecipientInfo) = { |
193 | ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT), |
194 | ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY) |
195 | } static_ASN1_SEQUENCE_END(CMS_OtherRecipientInfo) |
196 | |
197 | /* Free up RecipientInfo additional data */ |
198 | static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
199 | void *exarg) |
200 | { |
201 | if (operation == ASN1_OP_FREE_PRE) { |
202 | CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval; |
203 | if (ri->type == CMS_RECIPINFO_TRANS) { |
204 | CMS_KeyTransRecipientInfo *ktri = ri->d.ktri; |
205 | EVP_PKEY_free(ktri->pkey); |
206 | X509_free(ktri->recip); |
207 | EVP_PKEY_CTX_free(ktri->pctx); |
208 | } else if (ri->type == CMS_RECIPINFO_KEK) { |
209 | CMS_KEKRecipientInfo *kekri = ri->d.kekri; |
210 | OPENSSL_clear_free(kekri->key, kekri->keylen); |
211 | } else if (ri->type == CMS_RECIPINFO_PASS) { |
212 | CMS_PasswordRecipientInfo *pwri = ri->d.pwri; |
213 | OPENSSL_clear_free(pwri->pass, pwri->passlen); |
214 | } |
215 | } |
216 | return 1; |
217 | } |
218 | |
219 | ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = { |
220 | ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo), |
221 | ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1), |
222 | ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2), |
223 | ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3), |
224 | ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4) |
225 | } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type) |
226 | |
227 | ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = { |
228 | ASN1_EMBED(CMS_EnvelopedData, version, INT32), |
229 | ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0), |
230 | ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo), |
231 | ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo), |
232 | ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1) |
233 | } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData) |
234 | |
235 | ASN1_NDEF_SEQUENCE(CMS_DigestedData) = { |
236 | ASN1_EMBED(CMS_DigestedData, version, INT32), |
237 | ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR), |
238 | ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo), |
239 | ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING) |
240 | } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData) |
241 | |
242 | ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = { |
243 | ASN1_EMBED(CMS_EncryptedData, version, INT32), |
244 | ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo), |
245 | ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1) |
246 | } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData) |
247 | |
248 | ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = { |
249 | ASN1_EMBED(CMS_AuthenticatedData, version, INT32), |
250 | ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0), |
251 | ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo), |
252 | ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR), |
253 | ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1), |
254 | ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo), |
255 | ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2), |
256 | ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING), |
257 | ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3) |
258 | } static_ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData) |
259 | |
260 | ASN1_NDEF_SEQUENCE(CMS_CompressedData) = { |
261 | ASN1_EMBED(CMS_CompressedData, version, INT32), |
262 | ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR), |
263 | ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo), |
264 | } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData) |
265 | |
266 | /* This is the ANY DEFINED BY table for the top level ContentInfo structure */ |
267 | |
268 | ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0); |
269 | |
270 | ASN1_ADB(CMS_ContentInfo) = { |
271 | ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)), |
272 | ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)), |
273 | ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)), |
274 | ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)), |
275 | ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)), |
276 | ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)), |
277 | ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)), |
278 | } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL); |
279 | |
280 | /* CMS streaming support */ |
281 | static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it, |
282 | void *exarg) |
283 | { |
284 | ASN1_STREAM_ARG *sarg = exarg; |
285 | CMS_ContentInfo *cms = NULL; |
286 | if (pval) |
287 | cms = (CMS_ContentInfo *)*pval; |
288 | else |
289 | return 1; |
290 | switch (operation) { |
291 | |
292 | case ASN1_OP_STREAM_PRE: |
293 | if (CMS_stream(&sarg->boundary, cms) <= 0) |
294 | return 0; |
295 | /* fall thru */ |
296 | case ASN1_OP_DETACHED_PRE: |
297 | sarg->ndef_bio = CMS_dataInit(cms, sarg->out); |
298 | if (!sarg->ndef_bio) |
299 | return 0; |
300 | break; |
301 | |
302 | case ASN1_OP_STREAM_POST: |
303 | case ASN1_OP_DETACHED_POST: |
304 | if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0) |
305 | return 0; |
306 | break; |
307 | |
308 | } |
309 | return 1; |
310 | } |
311 | |
312 | ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = { |
313 | ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT), |
314 | ASN1_ADB_OBJECT(CMS_ContentInfo) |
315 | } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo) |
316 | |
317 | /* Specials for signed attributes */ |
318 | |
319 | /* |
320 | * When signing attributes we want to reorder them to match the sorted |
321 | * encoding. |
322 | */ |
323 | |
324 | ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) = |
325 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE) |
326 | ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign) |
327 | |
328 | /* |
329 | * When verifying attributes we need to use the received order. So we use |
330 | * SEQUENCE OF and tag it to SET OF |
331 | */ |
332 | |
333 | ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) = |
334 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL, |
335 | V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE) |
336 | ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify) |
337 | |
338 | |
339 | |
340 | ASN1_CHOICE(CMS_ReceiptsFrom) = { |
341 | ASN1_IMP_EMBED(CMS_ReceiptsFrom, d.allOrFirstTier, INT32, 0), |
342 | ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1) |
343 | } static_ASN1_CHOICE_END(CMS_ReceiptsFrom) |
344 | |
345 | ASN1_SEQUENCE(CMS_ReceiptRequest) = { |
346 | ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING), |
347 | ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom), |
348 | ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES) |
349 | } ASN1_SEQUENCE_END(CMS_ReceiptRequest) |
350 | |
351 | ASN1_SEQUENCE(CMS_Receipt) = { |
352 | ASN1_EMBED(CMS_Receipt, version, INT32), |
353 | ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT), |
354 | ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING), |
355 | ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING) |
356 | } ASN1_SEQUENCE_END(CMS_Receipt) |
357 | |
358 | /* |
359 | * Utilities to encode the CMS_SharedInfo structure used during key |
360 | * derivation. |
361 | */ |
362 | |
363 | typedef struct { |
364 | X509_ALGOR *keyInfo; |
365 | ASN1_OCTET_STRING *entityUInfo; |
366 | ASN1_OCTET_STRING *suppPubInfo; |
367 | } CMS_SharedInfo; |
368 | |
369 | ASN1_SEQUENCE(CMS_SharedInfo) = { |
370 | ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR), |
371 | ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0), |
372 | ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2), |
373 | } static_ASN1_SEQUENCE_END(CMS_SharedInfo) |
374 | |
375 | int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg, |
376 | ASN1_OCTET_STRING *ukm, int keylen) |
377 | { |
378 | union { |
379 | CMS_SharedInfo *pecsi; |
380 | ASN1_VALUE *a; |
381 | } intsi = { |
382 | NULL |
383 | }; |
384 | |
385 | ASN1_OCTET_STRING oklen; |
386 | unsigned char kl[4]; |
387 | CMS_SharedInfo ecsi; |
388 | |
389 | keylen <<= 3; |
390 | kl[0] = (keylen >> 24) & 0xff; |
391 | kl[1] = (keylen >> 16) & 0xff; |
392 | kl[2] = (keylen >> 8) & 0xff; |
393 | kl[3] = keylen & 0xff; |
394 | oklen.length = 4; |
395 | oklen.data = kl; |
396 | oklen.type = V_ASN1_OCTET_STRING; |
397 | oklen.flags = 0; |
398 | ecsi.keyInfo = kekalg; |
399 | ecsi.entityUInfo = ukm; |
400 | ecsi.suppPubInfo = &oklen; |
401 | intsi.pecsi = &ecsi; |
402 | return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo)); |
403 | } |
404 | |