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/* * 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. */ /* * *  (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();    }}