cms_asn1.c

OpenSSL 0.9.8k 最新版OpenSSL

ASN1_CHOICE(CMS_OriginatorIdentifierOrKey) = {
  ASN1_SIMPLE(CMS_OriginatorIdentifierOrKey, d.issuerAndSerialNumber, CMS_IssuerAndSerialNumber),
  ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.subjectKeyIdentifier, ASN1_OCTET_STRING, 0),
  ASN1_IMP(CMS_OriginatorIdentifierOrKey, d.originatorKey, CMS_OriginatorPublicKey, 1)
} ASN1_CHOICE_END(CMS_OriginatorIdentifierOrKey)

ASN1_SEQUENCE(CMS_KeyAgreeRecipientInfo) = {
	ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, version, LONG),
	ASN1_EXP(CMS_KeyAgreeRecipientInfo, originator, CMS_OriginatorIdentifierOrKey, 0),
	ASN1_EXP_OPT(CMS_KeyAgreeRecipientInfo, ukm, ASN1_OCTET_STRING, 1),
	ASN1_SIMPLE(CMS_KeyAgreeRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SEQUENCE_OF(CMS_KeyAgreeRecipientInfo, recipientEncryptedKeys, CMS_RecipientEncryptedKey)
} ASN1_SEQUENCE_END(CMS_KeyAgreeRecipientInfo)

ASN1_SEQUENCE(CMS_KEKIdentifier) = {
	ASN1_SIMPLE(CMS_KEKIdentifier, keyIdentifier, ASN1_OCTET_STRING),
	ASN1_OPT(CMS_KEKIdentifier, date, ASN1_GENERALIZEDTIME),
	ASN1_OPT(CMS_KEKIdentifier, other, CMS_OtherKeyAttribute)
} ASN1_SEQUENCE_END(CMS_KEKIdentifier)

ASN1_SEQUENCE(CMS_KEKRecipientInfo) = {
	ASN1_SIMPLE(CMS_KEKRecipientInfo, version, LONG),
	ASN1_SIMPLE(CMS_KEKRecipientInfo, kekid, CMS_KEKIdentifier),
	ASN1_SIMPLE(CMS_KEKRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_KEKRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(CMS_KEKRecipientInfo)

ASN1_SEQUENCE(CMS_PasswordRecipientInfo) = {
	ASN1_SIMPLE(CMS_PasswordRecipientInfo, version, LONG),
	ASN1_IMP_OPT(CMS_PasswordRecipientInfo, keyDerivationAlgorithm, X509_ALGOR, 0),
	ASN1_SIMPLE(CMS_PasswordRecipientInfo, keyEncryptionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_PasswordRecipientInfo, encryptedKey, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(CMS_PasswordRecipientInfo)

ASN1_SEQUENCE(CMS_OtherRecipientInfo) = {
  ASN1_SIMPLE(CMS_OtherRecipientInfo, oriType, ASN1_OBJECT),
  ASN1_OPT(CMS_OtherRecipientInfo, oriValue, ASN1_ANY)
} ASN1_SEQUENCE_END(CMS_OtherRecipientInfo)

/* Free up RecipientInfo additional data */
static int cms_ri_cb(int operation, ASN1_VALUE **pval, const ASN1_ITEM *it)
	{
	if(operation == ASN1_OP_FREE_PRE)
		{
		CMS_RecipientInfo *ri = (CMS_RecipientInfo *)*pval;
		if (ri->type == CMS_RECIPINFO_TRANS)
			{
			CMS_KeyTransRecipientInfo *ktri = ri->d.ktri;
			if (ktri->pkey)
				EVP_PKEY_free(ktri->pkey);
			if (ktri->recip)
				X509_free(ktri->recip);
			}
		else if (ri->type == CMS_RECIPINFO_KEK)
			{
			CMS_KEKRecipientInfo *kekri = ri->d.kekri;
			if (kekri->key)
				{
				OPENSSL_cleanse(kekri->key, kekri->keylen);
				OPENSSL_free(kekri->key);
				}
			}
		}
	return 1;
	}

ASN1_CHOICE_cb(CMS_RecipientInfo, cms_ri_cb) = {
	ASN1_SIMPLE(CMS_RecipientInfo, d.ktri, CMS_KeyTransRecipientInfo),
	ASN1_IMP(CMS_RecipientInfo, d.kari, CMS_KeyAgreeRecipientInfo, 1),
	ASN1_IMP(CMS_RecipientInfo, d.kekri, CMS_KEKRecipientInfo, 2),
	ASN1_IMP(CMS_RecipientInfo, d.pwri, CMS_PasswordRecipientInfo, 3),
	ASN1_IMP(CMS_RecipientInfo, d.ori, CMS_OtherRecipientInfo, 4)
} ASN1_CHOICE_END_cb(CMS_RecipientInfo, CMS_RecipientInfo, type)

ASN1_NDEF_SEQUENCE(CMS_EnvelopedData) = {
	ASN1_SIMPLE(CMS_EnvelopedData, version, LONG),
	ASN1_IMP_OPT(CMS_EnvelopedData, originatorInfo, CMS_OriginatorInfo, 0),
	ASN1_SET_OF(CMS_EnvelopedData, recipientInfos, CMS_RecipientInfo),
	ASN1_SIMPLE(CMS_EnvelopedData, encryptedContentInfo, CMS_EncryptedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_EnvelopedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
} ASN1_NDEF_SEQUENCE_END(CMS_EnvelopedData)

ASN1_NDEF_SEQUENCE(CMS_DigestedData) = {
	ASN1_SIMPLE(CMS_DigestedData, version, LONG),
	ASN1_SIMPLE(CMS_DigestedData, digestAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_DigestedData, encapContentInfo, CMS_EncapsulatedContentInfo),
	ASN1_SIMPLE(CMS_DigestedData, digest, ASN1_OCTET_STRING)
} ASN1_NDEF_SEQUENCE_END(CMS_DigestedData)

ASN1_NDEF_SEQUENCE(CMS_EncryptedData) = {
	ASN1_SIMPLE(CMS_EncryptedData, version, LONG),
	ASN1_SIMPLE(CMS_EncryptedData, encryptedContentInfo, CMS_EncryptedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_EncryptedData, unprotectedAttrs, X509_ATTRIBUTE, 1)
} ASN1_NDEF_SEQUENCE_END(CMS_EncryptedData)

ASN1_NDEF_SEQUENCE(CMS_AuthenticatedData) = {
	ASN1_SIMPLE(CMS_AuthenticatedData, version, LONG),
	ASN1_IMP_OPT(CMS_AuthenticatedData, originatorInfo, CMS_OriginatorInfo, 0),
	ASN1_SET_OF(CMS_AuthenticatedData, recipientInfos, CMS_RecipientInfo),
	ASN1_SIMPLE(CMS_AuthenticatedData, macAlgorithm, X509_ALGOR),
	ASN1_IMP(CMS_AuthenticatedData, digestAlgorithm, X509_ALGOR, 1),
	ASN1_SIMPLE(CMS_AuthenticatedData, encapContentInfo, CMS_EncapsulatedContentInfo),
	ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, authAttrs, X509_ALGOR, 2),
	ASN1_SIMPLE(CMS_AuthenticatedData, mac, ASN1_OCTET_STRING),
	ASN1_IMP_SET_OF_OPT(CMS_AuthenticatedData, unauthAttrs, X509_ALGOR, 3)
} ASN1_NDEF_SEQUENCE_END(CMS_AuthenticatedData)

ASN1_NDEF_SEQUENCE(CMS_CompressedData) = {
	ASN1_SIMPLE(CMS_CompressedData, version, LONG),
	ASN1_SIMPLE(CMS_CompressedData, compressionAlgorithm, X509_ALGOR),
	ASN1_SIMPLE(CMS_CompressedData, encapContentInfo, CMS_EncapsulatedContentInfo),
} ASN1_NDEF_SEQUENCE_END(CMS_CompressedData)

/* This is the ANY DEFINED BY table for the top level ContentInfo structure */

ASN1_ADB_TEMPLATE(cms_default) = ASN1_EXP(CMS_ContentInfo, d.other, ASN1_ANY, 0);

ASN1_ADB(CMS_ContentInfo) = {
	ADB_ENTRY(NID_pkcs7_data, ASN1_NDEF_EXP(CMS_ContentInfo, d.data, ASN1_OCTET_STRING_NDEF, 0)),
	ADB_ENTRY(NID_pkcs7_signed, ASN1_NDEF_EXP(CMS_ContentInfo, d.signedData, CMS_SignedData, 0)),
	ADB_ENTRY(NID_pkcs7_enveloped, ASN1_NDEF_EXP(CMS_ContentInfo, d.envelopedData, CMS_EnvelopedData, 0)),
	ADB_ENTRY(NID_pkcs7_digest, ASN1_NDEF_EXP(CMS_ContentInfo, d.digestedData, CMS_DigestedData, 0)),
	ADB_ENTRY(NID_pkcs7_encrypted, ASN1_NDEF_EXP(CMS_ContentInfo, d.encryptedData, CMS_EncryptedData, 0)),
	ADB_ENTRY(NID_id_smime_ct_authData, ASN1_NDEF_EXP(CMS_ContentInfo, d.authenticatedData, CMS_AuthenticatedData, 0)),
	ADB_ENTRY(NID_id_smime_ct_compressedData, ASN1_NDEF_EXP(CMS_ContentInfo, d.compressedData, CMS_CompressedData, 0)),
} ASN1_ADB_END(CMS_ContentInfo, 0, contentType, 0, &cms_default_tt, NULL);

ASN1_NDEF_SEQUENCE(CMS_ContentInfo) = {
	ASN1_SIMPLE(CMS_ContentInfo, contentType, ASN1_OBJECT),
	ASN1_ADB_OBJECT(CMS_ContentInfo)
} ASN1_NDEF_SEQUENCE_END(CMS_ContentInfo)

/* Specials for signed attributes */

/* When signing attributes we want to reorder them to match the sorted
 * encoding.
 */

ASN1_ITEM_TEMPLATE(CMS_Attributes_Sign) = 
	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SET_ORDER, 0, CMS_ATTRIBUTES, X509_ATTRIBUTE)
ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Sign)

/* When verifying attributes we need to use the received order. So 
 * we use SEQUENCE OF and tag it to SET OF
 */

ASN1_ITEM_TEMPLATE(CMS_Attributes_Verify) = 
	ASN1_EX_TEMPLATE_TYPE(ASN1_TFLG_SEQUENCE_OF | ASN1_TFLG_IMPTAG | ASN1_TFLG_UNIVERSAL,
				V_ASN1_SET, CMS_ATTRIBUTES, X509_ATTRIBUTE)
ASN1_ITEM_TEMPLATE_END(CMS_Attributes_Verify)



ASN1_CHOICE(CMS_ReceiptsFrom) = {
  ASN1_IMP(CMS_ReceiptsFrom, d.allOrFirstTier, LONG, 0),
  ASN1_IMP_SEQUENCE_OF(CMS_ReceiptsFrom, d.receiptList, GENERAL_NAMES, 1)
} ASN1_CHOICE_END(CMS_ReceiptsFrom)

ASN1_SEQUENCE(CMS_ReceiptRequest) = {
  ASN1_SIMPLE(CMS_ReceiptRequest, signedContentIdentifier, ASN1_OCTET_STRING),
  ASN1_SIMPLE(CMS_ReceiptRequest, receiptsFrom, CMS_ReceiptsFrom),
  ASN1_SEQUENCE_OF(CMS_ReceiptRequest, receiptsTo, GENERAL_NAMES)
} ASN1_SEQUENCE_END(CMS_ReceiptRequest)

ASN1_SEQUENCE(CMS_Receipt) = {
  ASN1_SIMPLE(CMS_Receipt, version, LONG),
  ASN1_SIMPLE(CMS_Receipt, contentType, ASN1_OBJECT),
  ASN1_SIMPLE(CMS_Receipt, signedContentIdentifier, ASN1_OCTET_STRING),
  ASN1_SIMPLE(CMS_Receipt, originatorSignatureValue, ASN1_OCTET_STRING)
} ASN1_SEQUENCE_END(CMS_Receipt)