/*
*
* Copyright (c) 2013 - 2017 Lijun Liao
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License version 3
* as published by the Free Software Foundation with the addition of the
* following permission added to Section 15 as permitted in Section 7(a):
*
* FOR ANY PART OF THE COVERED WORK IN WHICH THE COPYRIGHT IS OWNED BY
* THE AUTHOR LIJUN LIAO. LIJUN LIAO DISCLAIMS THE WARRANTY OF NON INFRINGEMENT
* OF THIRD PARTY RIGHTS.
*
* This program 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
* The interactive user interfaces in modified source and object code versions
* of this program must display Appropriate Legal Notices, as required under
* Section 5 of the GNU Affero General Public License.
*
* You can be released from the requirements of the license by purchasing
* a commercial license. Buying such a license is mandatory as soon as you
* develop commercial activities involving the XiPKI software without
* disclosing the source code of your own applications.
*
* For more information, please contact Lijun Liao at this
* address: lijun.liao@gmail.com
*/
package org.xipki.commons.security.pkcs11.proxy.msg;
import java.io.IOException;
import org.bouncycastle.asn1.ASN1EncodableVector;
import org.bouncycastle.asn1.ASN1Object;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.ASN1Sequence;
import org.bouncycastle.asn1.DEROctetString;
import org.bouncycastle.asn1.DERSequence;
import org.xipki.commons.common.util.ParamUtil;
import org.xipki.commons.security.exception.BadAsn1ObjectException;
/**
*
* <pre>
* SignTemplate ::= SEQUENCE {
* entityId EntityIdentifier,
* mechanism Mechanism,
* message OCTET STRING }
* </pre>
*
* @author Lijun Liao
* @since 2.0.0
*/
public class Asn1SignTemplate extends ASN1Object {
private final Asn1P11EntityIdentifier identityId;
private final Asn1Mechanism mechanism;
private final byte[] message;
private Asn1SignTemplate(final ASN1Sequence seq) throws BadAsn1ObjectException {
Asn1Util.requireRange(seq, 3, 3);
int idx = 0;
this.identityId = Asn1P11EntityIdentifier.getInstance(seq.getObjectAt(idx++));
this.mechanism = Asn1Mechanism.getInstance(seq.getObjectAt(idx++));
this.message = Asn1Util.getOctetStringBytes(seq.getObjectAt(idx++));
}
public Asn1SignTemplate(final Asn1P11EntityIdentifier identityId, final long mechanism,
final Asn1P11Params parameter, final byte[] message) {
this.identityId = ParamUtil.requireNonNull("identityId", identityId);
this.message = ParamUtil.requireNonNull("message", message);
this.mechanism = new Asn1Mechanism(mechanism, parameter);
}
public static Asn1SignTemplate getInstance(final Object obj) throws BadAsn1ObjectException {
if (obj == null || obj instanceof Asn1SignTemplate) {
return (Asn1SignTemplate) obj;
}
try {
if (obj instanceof ASN1Sequence) {
return new Asn1SignTemplate((ASN1Sequence) obj);
} else if (obj instanceof byte[]) {
return getInstance(ASN1Primitive.fromByteArray((byte[]) obj));
} else {
throw new BadAsn1ObjectException("unknown object: " + obj.getClass().getName());
}
} catch (IOException | IllegalArgumentException ex) {
throw new BadAsn1ObjectException("unable to parse encoded object: " + ex.getMessage(),
ex);
}
}
@Override
public ASN1Primitive toASN1Primitive() {
ASN1EncodableVector vector = new ASN1EncodableVector();
vector.add(identityId);
vector.add(mechanism);
vector.add(new DEROctetString(message));
return new DERSequence(vector);
}
public byte[] getMessage() {
return message;
}
public Asn1P11EntityIdentifier getIdentityId() {
return identityId;
}
public Asn1Mechanism getMechanism() {
return mechanism;
}
}