/*
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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.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
/** * 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; } }