jdk/src/share/classes/sun/security/krb5/internal/PAEncTSEnc.java
changeset 2 90ce3da70b43
child 5506 202f599c92aa
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/sun/security/krb5/internal/PAEncTSEnc.java	Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,116 @@
+/*
+ * 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.  Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun 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 Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.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();
+    }
+}