/* * 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.ktab; import sun.security.krb5.*;import sun.security.krb5.internal.*;import java.io.UnsupportedEncodingException; /** * This class represents a Key Table entry. Each entry contains the service principal of * the key, time stamp, key version and secret key itself. * * @author Yanni Zhang */public class KeyTabEntry implements KeyTabConstants {    PrincipalName service;    Realm realm;    KerberosTime timestamp;    int keyVersion;    int keyType;    byte[] keyblock = null;    boolean DEBUG = Krb5.DEBUG;     public KeyTabEntry (PrincipalName new_service, Realm new_realm, KerberosTime new_time,                        int new_keyVersion, int new_keyType, byte[] new_keyblock) {        service = new_service;        realm = new_realm;        timestamp = new_time;        keyVersion = new_keyVersion;        keyType = new_keyType;        if (new_keyblock != null) {            keyblock = new_keyblock.clone();        }    }     public PrincipalName getService() {        return service;    }     public EncryptionKey getKey() {        EncryptionKey key = new EncryptionKey(keyblock,                                              keyType,                                              new Integer(keyVersion));        return key;    }     public String getKeyString() {        StringBuffer sb = new StringBuffer("0x");        for (int i = 0; i < keyblock.length; i++) {            sb.append(String.format("%02x", keyblock[i]&0xff));        }        return sb.toString();    }    public int entryLength() {        int totalPrincipalLength = 0;        String[] names = service.getNameStrings();        for (int i = 0; i < names.length; i++) {            try {                totalPrincipalLength += principalSize + names[i].getBytes("8859_1").length;            } catch (UnsupportedEncodingException exc) {            }        }         int realmLen = 0;        try {            realmLen = realm.toString().getBytes("8859_1").length;        } catch (UnsupportedEncodingException exc) {        }         int size = principalComponentSize +  realmSize + realmLen            + totalPrincipalLength + principalTypeSize            + timestampSize + keyVersionSize            + keyTypeSize + keySize + keyblock.length;         if (DEBUG) {            System.out.println(">>> KeyTabEntry: key tab entry size is " + size);        }        return size;    }     public KerberosTime getTimeStamp() {        return timestamp;    }}