1 /* 2 * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (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