1 /* 2 * Copyright (c) 2000, 2019, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26 /* 27 * 28 * (C) Copyright IBM Corp. 1999 All Rights Reserved. 29 * Copyright 1997 The Open Group Research Institute. All rights reserved. 30 */ 31 32 package sun.security.krb5.internal.ktab; 33 34 import sun.security.krb5.*; 35 import sun.security.krb5.internal.*; 36 37 import static java.nio.charset.StandardCharsets.ISO_8859_1; 38 39 /** 40 * This class represents a Key Table entry. Each entry contains the service principal of 41 * the key, time stamp, key version and secret key itself. 42 * 43 * @author Yanni Zhang 44 */ 45 public class KeyTabEntry implements KeyTabConstants { 46 PrincipalName service; 47 Realm realm; 48 KerberosTime timestamp; 49 int keyVersion; 50 int keyType; 51 byte[] keyblock = null; 52 boolean DEBUG = Krb5.DEBUG; 53 KeyTabEntry(PrincipalName new_service, Realm new_realm, KerberosTime new_time, int new_keyVersion, int new_keyType, byte[] new_keyblock)54 public KeyTabEntry (PrincipalName new_service, Realm new_realm, KerberosTime new_time, 55 int new_keyVersion, int new_keyType, byte[] new_keyblock) { 56 service = new_service; 57 realm = new_realm; 58 timestamp = new_time; 59 keyVersion = new_keyVersion; 60 keyType = new_keyType; 61 if (new_keyblock != null) { 62 keyblock = new_keyblock.clone(); 63 } 64 } 65 getService()66 public PrincipalName getService() { 67 return service; 68 } 69 getKey()70 public EncryptionKey getKey() { 71 EncryptionKey key = new EncryptionKey(keyblock, 72 keyType, 73 keyVersion); 74 return key; 75 } 76 getKeyString()77 public String getKeyString() { 78 StringBuilder sb = new StringBuilder("0x"); 79 for (int i = 0; i < keyblock.length; i++) { 80 sb.append(String.format("%02x", keyblock[i]&0xff)); 81 } 82 return sb.toString(); 83 } entryLength()84 public int entryLength() { 85 int totalPrincipalLength = 0; 86 String[] names = service.getNameStrings(); 87 for (int i = 0; i < names.length; i++) { 88 totalPrincipalLength += principalSize + names[i].getBytes(ISO_8859_1).length; 89 } 90 91 int realmLen = realm.toString().getBytes(ISO_8859_1).length; 92 93 int size = principalComponentSize + realmSize + realmLen 94 + totalPrincipalLength + principalTypeSize 95 + timestampSize + keyVersionSize 96 + keyTypeSize + keySize + keyblock.length; 97 98 if (DEBUG) { 99 System.out.println(">>> KeyTabEntry: key tab entry size is " + size); 100 } 101 return size; 102 } 103 getTimeStamp()104 public KerberosTime getTimeStamp() { 105 return timestamp; 106 } 107 } 108