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/*
* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 only, as
* published by the Free Software Foundation. Oracle designates this
* particular file as subject to the "Classpath" exception as provided
* by Oracle in the LICENSE file that accompanied this code.
*
* This code is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* version 2 for more details (a copy is included in the LICENSE file that
* accompanied this code).
*
* You should have received a copy of the GNU General Public License version
* 2 along with this work; if not, write to the Free Software Foundation,
* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
* or visit www.oracle.com if you need additional information or have any
* questions.
*/
package sun.security.provider.certpath;
import java.io.IOException;
import java.security.cert.Extension;
import java.util.Collections;
import java.util.List;
import sun.misc.HexDumpEncoder;
import sun.security.util.*;
/**
* This class can be used to generate an OCSP request and send it over
* an outputstream. Currently we do not support signing requests
* The OCSP Request is specified in RFC 2560 and
* the ASN.1 definition is as follows:
* <pre>
*
* OCSPRequest ::= SEQUENCE {
* tbsRequest TBSRequest,
* optionalSignature [0] EXPLICIT Signature OPTIONAL }
*
* TBSRequest ::= SEQUENCE {
* version [0] EXPLICIT Version DEFAULT v1,
* requestorName [1] EXPLICIT GeneralName OPTIONAL,
* requestList SEQUENCE OF Request,
* requestExtensions [2] EXPLICIT Extensions OPTIONAL }
*
* Signature ::= SEQUENCE {
* signatureAlgorithm AlgorithmIdentifier,
* signature BIT STRING,
* certs [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL
* }
*
* Version ::= INTEGER { v1(0) }
*
* Request ::= SEQUENCE {
* reqCert CertID,
* singleRequestExtensions [0] EXPLICIT Extensions OPTIONAL }
*
* CertID ::= SEQUENCE {
* hashAlgorithm AlgorithmIdentifier,
* issuerNameHash OCTET STRING, -- Hash of Issuer's DN
* issuerKeyHash OCTET STRING, -- Hash of Issuers public key
* serialNumber CertificateSerialNumber
* }
*
* </pre>
*
* @author Ram Marti
*/
class OCSPRequest {
private static final Debug debug = Debug.getInstance("certpath");
private static final boolean dump = debug != null && Debug.isOn("ocsp");
// List of request CertIds
private final List<CertId> certIds;
private final List<Extension> extensions;
private byte[] nonce;
/*
* Constructs an OCSPRequest. This constructor is used
* to construct an unsigned OCSP Request for a single user cert.
*/
OCSPRequest(CertId certId) {
this(Collections.singletonList(certId));
}
OCSPRequest(List<CertId> certIds) {
this.certIds = certIds;
this.extensions = Collections.<Extension>emptyList();
}
OCSPRequest(List<CertId> certIds, List<Extension> extensions) {
this.certIds = certIds;
this.extensions = extensions;
}
byte[] encodeBytes() throws IOException {
// encode tbsRequest
DerOutputStream tmp = new DerOutputStream();
DerOutputStream requestsOut = new DerOutputStream();
for (CertId certId : certIds) {
DerOutputStream certIdOut = new DerOutputStream();
certId.encode(certIdOut);
requestsOut.write(DerValue.tag_Sequence, certIdOut);
}
tmp.write(DerValue.tag_Sequence, requestsOut);
if (!extensions.isEmpty()) {
DerOutputStream extOut = new DerOutputStream();
for (Extension ext : extensions) {
ext.encode(extOut);
if (ext.getId().equals(OCSP.NONCE_EXTENSION_OID.toString())) {
nonce = ext.getValue();
}
}
DerOutputStream extsOut = new DerOutputStream();
extsOut.write(DerValue.tag_Sequence, extOut);
tmp.write(DerValue.createTag(DerValue.TAG_CONTEXT,
true, (byte)2), extsOut);
}
DerOutputStream tbsRequest = new DerOutputStream();
tbsRequest.write(DerValue.tag_Sequence, tmp);
// OCSPRequest without the signature
DerOutputStream ocspRequest = new DerOutputStream();
ocspRequest.write(DerValue.tag_Sequence, tbsRequest);
byte[] bytes = ocspRequest.toByteArray();
if (dump) {
HexDumpEncoder hexEnc = new HexDumpEncoder();
debug.println("OCSPRequest bytes...\n\n" +
hexEnc.encode(bytes) + "\n");
}
return bytes;
}
List<CertId> getCertIds() {
return certIds;
}
byte[] getNonce() {
return nonce;
}
}
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