/*
* 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
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*/
/*
* (C) Copyright IBM Corp. 1999 All Rights Reserved.
* Copyright 1997 The Open Group Research Institute. All rights reserved.
*/
package sun.security.krb5.internal;
import sun.security.util.*;
import sun.security.krb5.Asn1Exception;
import java.io.IOException;
import java.math.BigInteger;
/**
* Implements the ASN.1 PAEncTSEnc type.
*
* <xmp>
* PA-ENC-TS-ENC ::= SEQUENCE {
* patimestamp [0] KerberosTime -- client's time --,
* pausec [1] Microseconds OPTIONAL
* }
* </xmp>
*
* <p>
* This definition reflects the Network Working Group RFC 4120
* specification available at
* <a href="http://www.ietf.org/rfc/rfc4120.txt">
* http://www.ietf.org/rfc/rfc4120.txt</a>.
*/
public class PAEncTSEnc {
public KerberosTime pATimeStamp;
public Integer pAUSec; //optional
public PAEncTSEnc(
KerberosTime new_pATimeStamp,
Integer new_pAUSec
) {
pATimeStamp = new_pATimeStamp;
pAUSec = new_pAUSec;
}
public PAEncTSEnc() {
KerberosTime now = new KerberosTime(KerberosTime.NOW);
pATimeStamp = now;
pAUSec = new Integer(now.getMicroSeconds());
}
/**
* Constructs a PAEncTSEnc object.
* @param encoding a Der-encoded data.
* @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
* @exception IOException if an I/O error occurs while reading encoded data.
*/
public PAEncTSEnc(DerValue encoding) throws Asn1Exception, IOException {
DerValue der;
if (encoding.getTag() != DerValue.tag_Sequence) {
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
pATimeStamp = KerberosTime.parse(encoding.getData(), (byte)0x00, false);
if (encoding.getData().available() > 0) {
der = encoding.getData().getDerValue();
if ((der.getTag() & 0x1F) == 0x01) {
pAUSec = new Integer(der.getData().getBigInteger().intValue());
}
else throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
if (encoding.getData().available() > 0)
throw new Asn1Exception(Krb5.ASN1_BAD_ID);
}
/**
* Encodes a PAEncTSEnc object.
* @return the byte array of encoded PAEncTSEnc object.
* @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data.
* @exception IOException if an I/O error occurs while reading encoded data.
*/
public byte[] asn1Encode() throws Asn1Exception, IOException {
DerOutputStream bytes = new DerOutputStream();
DerOutputStream temp = new DerOutputStream();
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x00), pATimeStamp.asn1Encode());
if (pAUSec != null) {
temp = new DerOutputStream();
temp.putInteger(BigInteger.valueOf(pAUSec.intValue()));
bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true, (byte)0x01), temp);
}
temp = new DerOutputStream();
temp.write(DerValue.tag_Sequence, bytes);
return temp.toByteArray();
}
}