e85d19c68e
A CAdES Basic Electronic Signature (CAdES-BES) contains, among other specifications, a collection of Signing Certificate reference attributes, stored in the signedData ether as ESS signing-certificate or as ESS signing-certificate-v2. These are described in detail in Section 5.7.2 of RFC 5126 - CMS Advanced Electronic Signatures (CAdES). This patch adds support for adding ESS signing-certificate[-v2] attributes to CMS signedData. Although it implements only a small part of the RFC, it is sufficient many cases to enable the `openssl cms` app to create signatures which comply with legal requirements of some European States (e.g Italy). Reviewed-by: Richard Levitte <levitte@openssl.org> Reviewed-by: Matthias St. Pierre <Matthias.St.Pierre@ncp-e.com> (Merged from https://github.com/openssl/openssl/pull/7893)
150 lines
5.2 KiB
C
150 lines
5.2 KiB
C
/*
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* Copyright 2015-2016 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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/*-
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* MessageImprint ::= SEQUENCE {
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* hashAlgorithm AlgorithmIdentifier,
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* hashedMessage OCTET STRING }
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*/
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struct TS_msg_imprint_st {
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X509_ALGOR *hash_algo;
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ASN1_OCTET_STRING *hashed_msg;
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};
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/*-
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* TimeStampResp ::= SEQUENCE {
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* status PKIStatusInfo,
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* timeStampToken TimeStampToken OPTIONAL }
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*/
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struct TS_resp_st {
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TS_STATUS_INFO *status_info;
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PKCS7 *token;
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TS_TST_INFO *tst_info;
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};
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/*-
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* TimeStampReq ::= SEQUENCE {
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* version INTEGER { v1(1) },
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* messageImprint MessageImprint,
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* --a hash algorithm OID and the hash value of the data to be
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* --time-stamped
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* reqPolicy TSAPolicyId OPTIONAL,
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* nonce INTEGER OPTIONAL,
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* certReq BOOLEAN DEFAULT FALSE,
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* extensions [0] IMPLICIT Extensions OPTIONAL }
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*/
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struct TS_req_st {
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ASN1_INTEGER *version;
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TS_MSG_IMPRINT *msg_imprint;
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ASN1_OBJECT *policy_id;
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ASN1_INTEGER *nonce;
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ASN1_BOOLEAN cert_req;
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STACK_OF(X509_EXTENSION) *extensions;
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};
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/*-
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* Accuracy ::= SEQUENCE {
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* seconds INTEGER OPTIONAL,
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* millis [0] INTEGER (1..999) OPTIONAL,
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* micros [1] INTEGER (1..999) OPTIONAL }
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*/
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struct TS_accuracy_st {
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ASN1_INTEGER *seconds;
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ASN1_INTEGER *millis;
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ASN1_INTEGER *micros;
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};
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/*-
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* TSTInfo ::= SEQUENCE {
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* version INTEGER { v1(1) },
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* policy TSAPolicyId,
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* messageImprint MessageImprint,
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* -- MUST have the same value as the similar field in
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* -- TimeStampReq
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* serialNumber INTEGER,
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* -- Time-Stamping users MUST be ready to accommodate integers
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* -- up to 160 bits.
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* genTime GeneralizedTime,
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* accuracy Accuracy OPTIONAL,
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* ordering BOOLEAN DEFAULT FALSE,
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* nonce INTEGER OPTIONAL,
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* -- MUST be present if the similar field was present
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* -- in TimeStampReq. In that case it MUST have the same value.
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* tsa [0] GeneralName OPTIONAL,
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* extensions [1] IMPLICIT Extensions OPTIONAL }
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*/
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struct TS_tst_info_st {
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ASN1_INTEGER *version;
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ASN1_OBJECT *policy_id;
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TS_MSG_IMPRINT *msg_imprint;
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ASN1_INTEGER *serial;
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ASN1_GENERALIZEDTIME *time;
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TS_ACCURACY *accuracy;
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ASN1_BOOLEAN ordering;
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ASN1_INTEGER *nonce;
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GENERAL_NAME *tsa;
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STACK_OF(X509_EXTENSION) *extensions;
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};
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struct TS_status_info_st {
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ASN1_INTEGER *status;
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STACK_OF(ASN1_UTF8STRING) *text;
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ASN1_BIT_STRING *failure_info;
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};
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struct TS_resp_ctx {
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X509 *signer_cert;
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EVP_PKEY *signer_key;
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const EVP_MD *signer_md;
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const EVP_MD *ess_cert_id_digest;
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STACK_OF(X509) *certs; /* Certs to include in signed data. */
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STACK_OF(ASN1_OBJECT) *policies; /* Acceptable policies. */
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ASN1_OBJECT *default_policy; /* It may appear in policies, too. */
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STACK_OF(EVP_MD) *mds; /* Acceptable message digests. */
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ASN1_INTEGER *seconds; /* accuracy, 0 means not specified. */
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ASN1_INTEGER *millis; /* accuracy, 0 means not specified. */
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ASN1_INTEGER *micros; /* accuracy, 0 means not specified. */
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unsigned clock_precision_digits; /* fraction of seconds in time stamp
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* token. */
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unsigned flags; /* Optional info, see values above. */
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/* Callback functions. */
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TS_serial_cb serial_cb;
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void *serial_cb_data; /* User data for serial_cb. */
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TS_time_cb time_cb;
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void *time_cb_data; /* User data for time_cb. */
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TS_extension_cb extension_cb;
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void *extension_cb_data; /* User data for extension_cb. */
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/* These members are used only while creating the response. */
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TS_REQ *request;
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TS_RESP *response;
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TS_TST_INFO *tst_info;
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};
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struct TS_verify_ctx {
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/* Set this to the union of TS_VFY_... flags you want to carry out. */
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unsigned flags;
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/* Must be set only with TS_VFY_SIGNATURE. certs is optional. */
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X509_STORE *store;
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STACK_OF(X509) *certs;
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/* Must be set only with TS_VFY_POLICY. */
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ASN1_OBJECT *policy;
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/*
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* Must be set only with TS_VFY_IMPRINT. If md_alg is NULL, the
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* algorithm from the response is used.
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*/
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X509_ALGOR *md_alg;
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unsigned char *imprint;
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unsigned imprint_len;
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/* Must be set only with TS_VFY_DATA. */
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BIO *data;
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/* Must be set only with TS_VFY_TSA_NAME. */
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ASN1_INTEGER *nonce;
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/* Must be set only with TS_VFY_TSA_NAME. */
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GENERAL_NAME *tsa_name;
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};
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