[331] | 1 | /*
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| 2 | * Copyright 2008-2016 The OpenSSL Project Authors. All Rights Reserved.
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| 3 | *
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| 4 | * Licensed under the OpenSSL license (the "License"). You may not use
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| 5 | * this file except in compliance with the License. You can obtain a copy
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| 6 | * in the file LICENSE in the source distribution or at
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| 7 | * https://www.openssl.org/source/license.html
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| 8 | */
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| 9 |
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| 10 | #include <openssl/asn1t.h>
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| 11 | #include <openssl/pem.h>
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| 12 | #include <openssl/x509v3.h>
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| 13 | #include <openssl/cms.h>
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| 14 | #include "cms_lcl.h"
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| 15 |
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| 16 |
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| 17 | ASN1_SEQUENCE(CMS_IssuerAndSerialNumber) = {
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| 18 | ASN1_SIMPLE(CMS_IssuerAndSerialNumber, issuer, X509_NAME),
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| 19 | ASN1_SIMPLE(CMS_IssuerAndSerialNumber, serialNumber, ASN1_INTEGER)
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| 20 | } ASN1_SEQUENCE_END(CMS_IssuerAndSerialNumber)
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| 21 |
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| 22 | ASN1_SEQUENCE(CMS_OtherCertificateFormat) = {
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| 23 | ASN1_SIMPLE(CMS_OtherCertificateFormat, otherCertFormat, ASN1_OBJECT),
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| 24 | ASN1_OPT(CMS_OtherCertificateFormat, otherCert, ASN1_ANY)
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| 25 | } static_ASN1_SEQUENCE_END(CMS_OtherCertificateFormat)
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| 26 |
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| 27 | ASN1_CHOICE(CMS_CertificateChoices) = {
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| 28 | ASN1_SIMPLE(CMS_CertificateChoices, d.certificate, X509),
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| 29 | ASN1_IMP(CMS_CertificateChoices, d.extendedCertificate, ASN1_SEQUENCE, 0),
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| 30 | ASN1_IMP(CMS_CertificateChoices, d.v1AttrCert, ASN1_SEQUENCE, 1),
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| 31 | ASN1_IMP(CMS_CertificateChoices, d.v2AttrCert, ASN1_SEQUENCE, 2),
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| 32 | ASN1_IMP(CMS_CertificateChoices, d.other, CMS_OtherCertificateFormat, 3)
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| 33 | } ASN1_CHOICE_END(CMS_CertificateChoices)
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| 34 |
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| 35 | ASN1_CHOICE(CMS_SignerIdentifier) = {
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| 36 | ASN1_SIMPLE(CMS_SignerIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
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| 37 | ASN1_IMP(CMS_SignerIdentifier, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0)
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| 38 | } static_ASN1_CHOICE_END(CMS_SignerIdentifier)
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| 39 |
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| 40 | ASN1_NDEF_SEQUENCE(CMS_EncapsulatedContentInfo) = {
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| 41 | ASN1_SIMPLE(CMS_EncapsulatedContentInfo, eContentType, ASN1_OBJECT),
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| 42 | ASN1_NDEF_EXP_OPT(CMS_EncapsulatedContentInfo, eContent, ASN1_OCTET_STRING_NDEF, 0)
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| 43 | } static_ASN1_NDEF_SEQUENCE_END(CMS_EncapsulatedContentInfo)
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| 44 |
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| 45 | /* Minor tweak to operation: free up signer key, cert */
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| 46 | static int cms_si_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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| 47 | void *exarg)
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| 48 | {
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| 49 | if (operation == ASN1_OP_FREE_POST) {
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| 50 | CMS_SignerInfo *si = (CMS_SignerInfo *)*pval;
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| 51 | EVP_PKEY_free(si->pkey);
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| 52 | X509_free(si->signer);
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| 53 | EVP_MD_CTX_free(si->mctx);
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| 54 | }
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| 55 | return 1;
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| 56 | }
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| 57 |
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| 58 | ASN1_SEQUENCE_cb(CMS_SignerInfo, cms_si_cb) = {
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| 59 | ASN1_SIMPLE(CMS_SignerInfo, version, LONG),
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| 60 | ASN1_SIMPLE(CMS_SignerInfo, sid, CMS_SignerIdentifier),
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| 61 | ASN1_SIMPLE(CMS_SignerInfo, digestAlgorithm, X509_ALGOR),
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| 62 | ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, signedAttrs, X509_ATTRIBUTE, 0),
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| 63 | ASN1_SIMPLE(CMS_SignerInfo, signatureAlgorithm, X509_ALGOR),
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| 64 | ASN1_SIMPLE(CMS_SignerInfo, signature, ASN1_OCTET_STRING),
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| 65 | ASN1_IMP_SET_OF_OPT(CMS_SignerInfo, unsignedAttrs, X509_ATTRIBUTE, 1)
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| 66 | } ASN1_SEQUENCE_END_cb(CMS_SignerInfo, CMS_SignerInfo)
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| 67 |
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| 68 | ASN1_SEQUENCE(CMS_OtherRevocationInfoFormat) = {
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| 69 | ASN1_SIMPLE(CMS_OtherRevocationInfoFormat, otherRevInfoFormat, ASN1_OBJECT),
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| 70 | ASN1_OPT(CMS_OtherRevocationInfoFormat, otherRevInfo, ASN1_ANY)
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| 71 | } static_ASN1_SEQUENCE_END(CMS_OtherRevocationInfoFormat)
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| 72 |
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| 73 | ASN1_CHOICE(CMS_RevocationInfoChoice) = {
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| 74 | ASN1_SIMPLE(CMS_RevocationInfoChoice, d.crl, X509_CRL),
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| 75 | ASN1_IMP(CMS_RevocationInfoChoice, d.other, CMS_OtherRevocationInfoFormat, 1)
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| 76 | } ASN1_CHOICE_END(CMS_RevocationInfoChoice)
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| 77 |
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| 78 | ASN1_NDEF_SEQUENCE(CMS_SignedData) = {
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| 79 | ASN1_SIMPLE(CMS_SignedData, version, LONG),
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| 80 | ASN1_SET_OF(CMS_SignedData, digestAlgorithms, X509_ALGOR),
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| 81 | ASN1_SIMPLE(CMS_SignedData, encapContentInfo, CMS_EncapsulatedContentInfo),
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| 82 | ASN1_IMP_SET_OF_OPT(CMS_SignedData, certificates, CMS_CertificateChoices, 0),
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| 83 | ASN1_IMP_SET_OF_OPT(CMS_SignedData, crls, CMS_RevocationInfoChoice, 1),
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| 84 | ASN1_SET_OF(CMS_SignedData, signerInfos, CMS_SignerInfo)
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| 85 | } ASN1_NDEF_SEQUENCE_END(CMS_SignedData)
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| 86 |
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| 87 | ASN1_SEQUENCE(CMS_OriginatorInfo) = {
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| 88 | ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, certificates, CMS_CertificateChoices, 0),
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| 89 | ASN1_IMP_SET_OF_OPT(CMS_OriginatorInfo, crls, CMS_RevocationInfoChoice, 1)
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| 90 | } static_ASN1_SEQUENCE_END(CMS_OriginatorInfo)
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| 91 |
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| 92 | ASN1_NDEF_SEQUENCE(CMS_EncryptedContentInfo) = {
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| 93 | ASN1_SIMPLE(CMS_EncryptedContentInfo, contentType, ASN1_OBJECT),
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| 94 | ASN1_SIMPLE(CMS_EncryptedContentInfo, contentEncryptionAlgorithm, X509_ALGOR),
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| 95 | ASN1_IMP_OPT(CMS_EncryptedContentInfo, encryptedContent, ASN1_OCTET_STRING_NDEF, 0)
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| 96 | } static_ASN1_NDEF_SEQUENCE_END(CMS_EncryptedContentInfo)
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| 97 |
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| 98 | ASN1_SEQUENCE(CMS_KeyTransRecipientInfo) = {
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| 99 | ASN1_SIMPLE(CMS_KeyTransRecipientInfo, version, LONG),
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| 100 | ASN1_SIMPLE(CMS_KeyTransRecipientInfo, rid, CMS_SignerIdentifier),
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| 101 | ASN1_SIMPLE(CMS_KeyTransRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
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| 102 | ASN1_SIMPLE(CMS_KeyTransRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
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| 103 | } ASN1_SEQUENCE_END(CMS_KeyTransRecipientInfo)
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| 104 |
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| 105 | ASN1_SEQUENCE(CMS_OtherKeyAttribute) = {
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| 106 | ASN1_SIMPLE(CMS_OtherKeyAttribute, keyAttrId, ASN1_OBJECT),
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| 107 | ASN1_OPT(CMS_OtherKeyAttribute, keyAttr, ASN1_ANY)
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| 108 | } ASN1_SEQUENCE_END(CMS_OtherKeyAttribute)
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| 109 |
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| 110 | ASN1_SEQUENCE(CMS_RecipientKeyIdentifier) = {
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| 111 | ASN1_SIMPLE(CMS_RecipientKeyIdentifier, subjectKeyIdentifier, ASN1_OCTET_STRING),
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| 112 | ASN1_OPT(CMS_RecipientKeyIdentifier, date, ASN1_GENERALIZEDTIME),
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| 113 | ASN1_OPT(CMS_RecipientKeyIdentifier, other, CMS_OtherKeyAttribute)
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| 114 | } ASN1_SEQUENCE_END(CMS_RecipientKeyIdentifier)
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| 115 |
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| 116 | ASN1_CHOICE(CMS_KeyAgreeRecipientIdentifier) = {
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| 117 | ASN1_SIMPLE(CMS_KeyAgreeRecipientIdentifier, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
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| 118 | ASN1_IMP(CMS_KeyAgreeRecipientIdentifier, d.rKeyId, CMS_RecipientKeyIdentifier, 0)
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| 119 | } static_ASN1_CHOICE_END(CMS_KeyAgreeRecipientIdentifier)
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| 120 |
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| 121 | static int cms_rek_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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| 122 | void *exarg)
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| 123 | {
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| 124 | CMS_RecipientEncryptedKey *rek = (CMS_RecipientEncryptedKey *)*pval;
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| 125 | if (operation == ASN1_OP_FREE_POST) {
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| 126 | EVP_PKEY_free(rek->pkey);
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| 127 | }
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| 128 | return 1;
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| 129 | }
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| 130 |
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| 131 | ASN1_SEQUENCE_cb(CMS_RecipientEncryptedKey, cms_rek_cb) = {
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| 132 | ASN1_SIMPLE(CMS_RecipientEncryptedKey, rid, CMS_KeyAgreeRecipientIdentifier),
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| 133 | ASN1_SIMPLE(CMS_RecipientEncryptedKey, encryptedKey, ASN1_OCTET_STRING)
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| 134 | } ASN1_SEQUENCE_END_cb(CMS_RecipientEncryptedKey, CMS_RecipientEncryptedKey)
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| 135 |
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| 136 | ASN1_SEQUENCE(CMS_OriginatorPublicKey) = {
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| 137 | ASN1_SIMPLE(CMS_OriginatorPublicKey, algorithm, X509_ALGOR),
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| 138 | ASN1_SIMPLE(CMS_OriginatorPublicKey, publicKey, ASN1_BIT_STRING)
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| 139 | } ASN1_SEQUENCE_END(CMS_OriginatorPublicKey)
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| 140 |
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| 141 | ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
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| 142 | ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
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| 143 | ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
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| 144 | ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
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| 145 | } static_ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)
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| 146 |
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| 147 | static int cms_kari_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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| 148 | void *exarg)
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| 149 | {
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| 150 | CMS_KeyAgreeRecipientInfo *kari = (CMS_KeyAgreeRecipientInfo *)*pval;
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| 151 | if (operation == ASN1_OP_NEW_POST) {
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| 152 | kari->ctx = EVP_CIPHER_CTX_new();
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| 153 | if (kari->ctx == NULL)
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| 154 | return 0;
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| 155 | EVP_CIPHER_CTX_set_flags(kari->ctx, EVP_CIPHER_CTX_FLAG_WRAP_ALLOW);
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| 156 | kari->pctx = NULL;
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| 157 | } else if (operation == ASN1_OP_FREE_POST) {
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| 158 | EVP_PKEY_CTX_free(kari->pctx);
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| 159 | EVP_CIPHER_CTX_free(kari->ctx);
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| 160 | }
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| 161 | return 1;
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| 162 | }
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| 163 |
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| 164 | ASN1_SEQUENCE_cb(CMS_KeyAgreeRecipientInfo, cms_kari_cb) = {
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| 165 | ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, version, LONG),
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| 166 | ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
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| 167 | ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
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| 168 | ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
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| 169 | ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
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| 170 | } ASN1_SEQUENCE_END_cb(CMS_KeyAgreeRecipientInfo, CMS_KeyAgreeRecipientInfo)
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| 171 |
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| 172 | ASN1_SEQUENCE(CMS_KEKIdentifier) = {
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| 173 | ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
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| 174 | ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
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| 175 | ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
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| 176 | } static_ASN1_SEQUENCE_END(CMS_KEKIdentifier)
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| 177 |
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| 178 | ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
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| 179 | ASN1_SIMPLE(CMS_KEKRecipientInfo, version, LONG),
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| 180 | ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
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| 181 | ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
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| 182 | ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
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| 183 | } ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)
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| 184 |
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| 185 | ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
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| 186 | ASN1_SIMPLE(CMS_PasswordRecipientInfo, version, LONG),
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| 187 | ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
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| 188 | ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
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| 189 | ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
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| 190 | } ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)
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| 191 |
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| 192 | ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
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| 193 | ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
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| 194 | ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
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| 195 | } static_ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)
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| 196 |
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| 197 | /* Free up RecipientInfo additional data */
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| 198 | static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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| 199 | void *exarg)
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| 200 | {
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| 201 | if (operation == ASN1_OP_FREE_PRE) {
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| 202 | CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
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| 203 | if (ri->type == CMS_RECIPINFO_TRANS) {
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| 204 | CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
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| 205 | EVP_PKEY_free(ktri->pkey);
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| 206 | X509_free(ktri->recip);
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| 207 | EVP_PKEY_CTX_free(ktri->pctx);
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| 208 | } else if (ri->type == CMS_RECIPINFO_KEK) {
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| 209 | CMS_KEKRecipientInfo *kekri = ri->d.kekri;
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| 210 | OPENSSL_clear_free(kekri->key, kekri->keylen);
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| 211 | } else if (ri->type == CMS_RECIPINFO_PASS) {
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| 212 | CMS_PasswordRecipientInfo *pwri = ri->d.pwri;
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| 213 | OPENSSL_clear_free(pwri->pass, pwri->passlen);
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| 214 | }
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| 215 | }
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| 216 | return 1;
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| 217 | }
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| 218 |
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| 219 | ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
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| 220 | ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
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| 221 | ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
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| 222 | ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
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| 223 | ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
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| 224 | ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
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| 225 | } ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)
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| 226 |
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| 227 | ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
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| 228 | ASN1_SIMPLE(CMS_EnvelopedData, version, LONG),
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| 229 | ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
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| 230 | ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
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| 231 | ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
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| 232 | ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
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| 233 | } ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)
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| 234 |
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| 235 | ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
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| 236 | ASN1_SIMPLE(CMS_DigestedData, version, LONG),
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| 237 | ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
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| 238 | ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
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| 239 | ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
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| 240 | } ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)
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| 241 |
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| 242 | ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
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| 243 | ASN1_SIMPLE(CMS_EncryptedData, version, LONG),
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| 244 | ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
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| 245 | ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
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| 246 | } ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)
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| 247 |
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| 248 | ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
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| 249 | ASN1_SIMPLE(CMS_AuthenticatedData, version, LONG),
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| 250 | ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
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| 251 | ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
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| 252 | ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
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| 253 | ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
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| 254 | ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
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| 255 | ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
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| 256 | ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
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| 257 | ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
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| 258 | } static_ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)
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| 259 |
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| 260 | ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
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| 261 | ASN1_SIMPLE(CMS_CompressedData, version, LONG),
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| 262 | ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
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| 263 | ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
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| 264 | } ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)
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| 265 |
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| 266 | /* This is the ANY DEFINED BY table for the top level ContentInfo structure */
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| 267 |
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| 268 | ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);
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| 269 |
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| 270 | ASN1_ADB(CMS_ContentInfo) = {
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| 271 | ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
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| 272 | ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
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| 273 | ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
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| 274 | ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
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| 275 | ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
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| 276 | ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
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| 277 | ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
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| 278 | } ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);
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| 279 |
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| 280 | /* CMS streaming support */
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| 281 | static int cms_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it,
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| 282 | void *exarg)
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| 283 | {
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| 284 | ASN1_STREAM_ARG *sarg = exarg;
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| 285 | CMS_ContentInfo *cms = NULL;
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| 286 | if (pval)
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| 287 | cms = (CMS_ContentInfo *)*pval;
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| 288 | else
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| 289 | return 1;
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| 290 | switch (operation) {
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| 291 |
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| 292 | case ASN1_OP_STREAM_PRE:
|
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| 293 | if (CMS_stream(&sarg->boundary, cms) <= 0)
|
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| 294 | return 0;
|
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| 295 | case ASN1_OP_DETACHED_PRE:
|
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| 296 | sarg->ndef_bio = CMS_dataInit(cms, sarg->out);
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| 297 | if (!sarg->ndef_bio)
|
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| 298 | return 0;
|
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| 299 | break;
|
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| 300 |
|
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| 301 | case ASN1_OP_STREAM_POST:
|
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| 302 | case ASN1_OP_DETACHED_POST:
|
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| 303 | if (CMS_dataFinal(cms, sarg->ndef_bio) <= 0)
|
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| 304 | return 0;
|
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| 305 | break;
|
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| 306 |
|
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| 307 | }
|
---|
| 308 | return 1;
|
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| 309 | }
|
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| 310 |
|
---|
| 311 | ASN1_NDEF_SEQUENCE_cb(CMS_ContentInfo, cms_cb) = {
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| 312 | ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
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| 313 | ASN1_ADB_OBJECT(CMS_ContentInfo)
|
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| 314 | } ASN1_NDEF_SEQUENCE_END_cb(CMS_ContentInfo, CMS_ContentInfo)
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| 315 |
|
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| 316 | /* Specials for signed attributes */
|
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| 317 |
|
---|
| 318 | /*
|
---|
| 319 | * When signing attributes we want to reorder them to match the sorted
|
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| 320 | * encoding.
|
---|
| 321 | */
|
---|
| 322 |
|
---|
| 323 | ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) =
|
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| 324 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
|
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| 325 | ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)
|
---|
| 326 |
|
---|
| 327 | /*
|
---|
| 328 | * When verifying attributes we need to use the received order. So we use
|
---|
| 329 | * SEQUENCE OF and tag it to SET OF
|
---|
| 330 | */
|
---|
| 331 |
|
---|
| 332 | ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) =
|
---|
| 333 | ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
|
---|
| 334 | V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
|
---|
| 335 | ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)
|
---|
| 336 |
|
---|
| 337 |
|
---|
| 338 |
|
---|
| 339 | ASN1_CHOICE(CMS_ReceiptsFrom) = {
|
---|
| 340 | ASN1_IMP(CMS_ReceiptsFrom, d.allOrFirstTier, LONG, 0),
|
---|
| 341 | ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
|
---|
| 342 | } static_ASN1_CHOICE_END(CMS_ReceiptsFrom)
|
---|
| 343 |
|
---|
| 344 | ASN1_SEQUENCE(CMS_ReceiptRequest) = {
|
---|
| 345 | ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
|
---|
| 346 | ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
|
---|
| 347 | ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
|
---|
| 348 | } ASN1_SEQUENCE_END(CMS_ReceiptRequest)
|
---|
| 349 |
|
---|
| 350 | ASN1_SEQUENCE(CMS_Receipt) = {
|
---|
| 351 | ASN1_SIMPLE(CMS_Receipt, version, LONG),
|
---|
| 352 | ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
|
---|
| 353 | ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
|
---|
| 354 | ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
|
---|
| 355 | } ASN1_SEQUENCE_END(CMS_Receipt)
|
---|
| 356 |
|
---|
| 357 | /*
|
---|
| 358 | * Utilities to encode the CMS_SharedInfo structure used during key
|
---|
| 359 | * derivation.
|
---|
| 360 | */
|
---|
| 361 |
|
---|
| 362 | typedef struct {
|
---|
| 363 | X509_ALGOR *keyInfo;
|
---|
| 364 | ASN1_OCTET_STRING *entityUInfo;
|
---|
| 365 | ASN1_OCTET_STRING *suppPubInfo;
|
---|
| 366 | } CMS_SharedInfo;
|
---|
| 367 |
|
---|
| 368 | ASN1_SEQUENCE(CMS_SharedInfo) = {
|
---|
| 369 | ASN1_SIMPLE(CMS_SharedInfo, keyInfo, X509_ALGOR),
|
---|
| 370 | ASN1_EXP_OPT(CMS_SharedInfo, entityUInfo, ASN1_OCTET_STRING, 0),
|
---|
| 371 | ASN1_EXP_OPT(CMS_SharedInfo, suppPubInfo, ASN1_OCTET_STRING, 2),
|
---|
| 372 | } static_ASN1_SEQUENCE_END(CMS_SharedInfo)
|
---|
| 373 |
|
---|
| 374 | int CMS_SharedInfo_encode(unsigned char **pder, X509_ALGOR *kekalg,
|
---|
| 375 | ASN1_OCTET_STRING *ukm, int keylen)
|
---|
| 376 | {
|
---|
| 377 | union {
|
---|
| 378 | CMS_SharedInfo *pecsi;
|
---|
| 379 | ASN1_VALUE *a;
|
---|
| 380 | } intsi = {
|
---|
| 381 | NULL
|
---|
| 382 | };
|
---|
| 383 |
|
---|
| 384 | ASN1_OCTET_STRING oklen;
|
---|
| 385 | unsigned char kl[4];
|
---|
| 386 | CMS_SharedInfo ecsi;
|
---|
| 387 |
|
---|
| 388 | keylen <<= 3;
|
---|
| 389 | kl[0] = (keylen >> 24) & 0xff;
|
---|
| 390 | kl[1] = (keylen >> 16) & 0xff;
|
---|
| 391 | kl[2] = (keylen >> 8) & 0xff;
|
---|
| 392 | kl[3] = keylen & 0xff;
|
---|
| 393 | oklen.length = 4;
|
---|
| 394 | oklen.data = kl;
|
---|
| 395 | oklen.type = V_ASN1_OCTET_STRING;
|
---|
| 396 | oklen.flags = 0;
|
---|
| 397 | ecsi.keyInfo = kekalg;
|
---|
| 398 | ecsi.entityUInfo = ukm;
|
---|
| 399 | ecsi.suppPubInfo = &oklen;
|
---|
| 400 | intsi.pecsi = &ecsi;
|
---|
| 401 | return ASN1_item_i2d(intsi.a, pder, ASN1_ITEM_rptr(CMS_SharedInfo));
|
---|
| 402 | }
|
---|