| /* | |
| * 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.krb5.*; | |
| import sun.security.util.*; | |
| import java.io.IOException; | |
| import java.math.BigInteger; | |
| import static sun.security.krb5.internal.Krb5.DEBUG; | |
| /** | |
| * Implements the ASN.1 KDC-REP type. | |
| * | |
| * <pre>{@code | |
| * KDC-REP ::= SEQUENCE { | |
| * pvno [0] INTEGER (5), | |
| * msg-type [1] INTEGER (11 -- AS -- | 13 -- TGS --), | |
| * padata [2] SEQUENCE OF PA-DATA OPTIONAL | |
| * -- NOTE: not empty --, | |
| * crealm [3] Realm, | |
| * cname [4] PrincipalName, | |
| * ticket [5] Ticket, | |
| * enc-part [6] EncryptedData | |
| * -- EncASRepPart or EncTGSRepPart, | |
| * -- as appropriate | |
| * } | |
| * }</pre> | |
| * | |
| * <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 KDCRep { | |
| public PrincipalName cname; | |
| public Ticket ticket; | |
| public EncryptedData encPart; | |
| public EncKDCRepPart encKDCRepPart; //not part of ASN.1 encoding | |
| private int pvno; | |
| private int msgType; | |
| public PAData[] pAData = null; //optional | |
| public KDCRep( | |
| PAData[] new_pAData, | |
| PrincipalName new_cname, | |
| Ticket new_ticket, | |
| EncryptedData new_encPart, | |
| int req_type) throws IOException { | |
| pvno = Krb5.PVNO; | |
| msgType = req_type; | |
| if (new_pAData != null) { | |
| pAData = new PAData[new_pAData.length]; | |
| for (int i = 0; i < new_pAData.length; i++) { | |
| if (new_pAData[i] == null) { | |
| throw new IOException("Cannot create a KDCRep"); | |
| } else { | |
| pAData[i] = (PAData) new_pAData[i].clone(); | |
| } | |
| } | |
| } | |
| cname = new_cname; | |
| ticket = new_ticket; | |
| encPart = new_encPart; | |
| } | |
| public KDCRep() { | |
| } | |
| public KDCRep(byte[] data, int req_type) throws Asn1Exception, | |
| KrbApErrException, RealmException, IOException { | |
| init(new DerValue(data), req_type); | |
| } | |
| public KDCRep(DerValue encoding, int req_type) throws Asn1Exception, | |
| RealmException, KrbApErrException, IOException { | |
| init(encoding, req_type); | |
| } | |
| /* | |
| // Not used? Don't know what keyusage to use here %%% | |
| public void decrypt(EncryptionKey key) throws Asn1Exception, | |
| IOException, KrbException, RealmException { | |
| encKDCRepPart = new EncKDCRepPart(encPart.decrypt(key), msgType); | |
| } | |
| */ | |
| /** | |
| * Initializes an KDCRep object. | |
| * | |
| * @param encoding a single DER-encoded value. | |
| * @param req_type reply message type. | |
| * @exception Asn1Exception if an error occurs while decoding an ASN1 encoded data. | |
| * @exception IOException if an I/O error occurs while reading encoded data. | |
| * @exception RealmException if an error occurs while constructing | |
| * a Realm object from DER-encoded data. | |
| * @exception KrbApErrException if the value read from the DER-encoded | |
| * data stream does not match the pre-defined value. | |
| * | |
| */ | |
| protected void init(DerValue encoding, int req_type) | |
| throws Asn1Exception, RealmException, IOException, | |
| KrbApErrException { | |
| DerValue der, subDer; | |
| if ((encoding.getTag() & 0x1F) != req_type) { | |
| if (DEBUG != null) { | |
| DEBUG.println(">>> KDCRep: init() " + | |
| "encoding tag is " + | |
| encoding.getTag() + | |
| " req type is " + req_type); | |
| } | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| der = encoding.getData().getDerValue(); | |
| if (der.getTag() != DerValue.tag_Sequence) { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| subDer = der.getData().getDerValue(); | |
| if ((subDer.getTag() & 0x1F) == 0x00) { | |
| pvno = subDer.getData().getBigInteger().intValue(); | |
| if (pvno != Krb5.PVNO) { | |
| throw new KrbApErrException(Krb5.KRB_AP_ERR_BADVERSION); | |
| } | |
| } else { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| subDer = der.getData().getDerValue(); | |
| if ((subDer.getTag() & 0x1F) == 0x01) { | |
| msgType = subDer.getData().getBigInteger().intValue(); | |
| if (msgType != req_type) { | |
| throw new KrbApErrException(Krb5.KRB_AP_ERR_MSG_TYPE); | |
| } | |
| } else { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| if ((der.getData().peekByte() & 0x1F) == 0x02) { | |
| subDer = der.getData().getDerValue(); | |
| DerValue[] padata = subDer.getData().getSequence(1); | |
| pAData = new PAData[padata.length]; | |
| for (int i = 0; i < padata.length; i++) { | |
| pAData[i] = new PAData(padata[i]); | |
| } | |
| } else { | |
| pAData = null; | |
| } | |
| Realm crealm = Realm.parse(der.getData(), (byte) 0x03, false); | |
| cname = PrincipalName.parse(der.getData(), (byte) 0x04, false, crealm); | |
| ticket = Ticket.parse(der.getData(), (byte) 0x05, false); | |
| encPart = EncryptedData.parse(der.getData(), (byte) 0x06, false); | |
| if (der.getData().available() > 0) { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| } | |
| /** | |
| * Encodes this object to a byte array. | |
| * @return byte array of encoded APReq 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(); | |
| temp.putInteger(BigInteger.valueOf(pvno)); | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x00), temp); | |
| temp = new DerOutputStream(); | |
| temp.putInteger(BigInteger.valueOf(msgType)); | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x01), temp); | |
| if (pAData != null && pAData.length > 0) { | |
| DerOutputStream padata_stream = new DerOutputStream(); | |
| for (int i = 0; i < pAData.length; i++) { | |
| padata_stream.write(pAData[i].asn1Encode()); | |
| } | |
| temp = new DerOutputStream(); | |
| temp.write(DerValue.tag_SequenceOf, padata_stream); | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x02), temp); | |
| } | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x03), cname.getRealm().asn1Encode()); | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x04), cname.asn1Encode()); | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x05), ticket.asn1Encode()); | |
| bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x06), encPart.asn1Encode()); | |
| temp = new DerOutputStream(); | |
| temp.write(DerValue.tag_Sequence, bytes); | |
| return temp.toByteArray(); | |
| } | |
| } |