| /* | |
| * 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.util.Vector; | |
| import java.io.IOException; | |
| import java.math.BigInteger; | |
| /** | |
| * Implements the ASN.1 EncKDCRepPart type. | |
| * | |
| * <pre>{@code | |
| * EncKDCRepPart ::= SEQUENCE { | |
| * key [0] EncryptionKey, | |
| * last-req [1] LastReq, | |
| * nonce [2] UInt32, | |
| * key-expiration [3] KerberosTime OPTIONAL, | |
| * flags [4] TicketFlags, | |
| * authtime [5] KerberosTime, | |
| * starttime [6] KerberosTime OPTIONAL, | |
| * endtime [7] KerberosTime, | |
| * renew-till [8] KerberosTime OPTIONAL, | |
| * srealm [9] Realm, | |
| * sname [10] PrincipalName, | |
| * caddr [11] HostAddresses OPTIONAL, | |
| * encrypted-pa-data [12] SEQUENCE OF PA-DATA OPTIONAL | |
| * } | |
| * }</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 EncKDCRepPart { | |
| public EncryptionKey key; | |
| public LastReq lastReq; | |
| public int nonce; | |
| public KerberosTime keyExpiration; //optional | |
| public TicketFlags flags; | |
| public KerberosTime authtime; | |
| public KerberosTime starttime; //optional | |
| public KerberosTime endtime; | |
| public KerberosTime renewTill; //optional | |
| public PrincipalName sname; | |
| public HostAddresses caddr; //optional | |
| public PAData[] pAData; //optional | |
| public int msgType; //not included in sequence | |
| public EncKDCRepPart( | |
| EncryptionKey new_key, | |
| LastReq new_lastReq, | |
| int new_nonce, | |
| KerberosTime new_keyExpiration, | |
| TicketFlags new_flags, | |
| KerberosTime new_authtime, | |
| KerberosTime new_starttime, | |
| KerberosTime new_endtime, | |
| KerberosTime new_renewTill, | |
| PrincipalName new_sname, | |
| HostAddresses new_caddr, | |
| PAData[] new_pAData, | |
| int new_msgType) { | |
| key = new_key; | |
| lastReq = new_lastReq; | |
| nonce = new_nonce; | |
| keyExpiration = new_keyExpiration; | |
| flags = new_flags; | |
| authtime = new_authtime; | |
| starttime = new_starttime; | |
| endtime = new_endtime; | |
| renewTill = new_renewTill; | |
| sname = new_sname; | |
| caddr = new_caddr; | |
| pAData = new_pAData; | |
| msgType = new_msgType; | |
| } | |
| public EncKDCRepPart() { | |
| } | |
| public EncKDCRepPart(byte[] data, int rep_type) | |
| throws Asn1Exception, IOException, RealmException { | |
| init(new DerValue(data), rep_type); | |
| } | |
| public EncKDCRepPart(DerValue encoding, int rep_type) | |
| throws Asn1Exception, IOException, RealmException { | |
| init(encoding, rep_type); | |
| } | |
| /** | |
| * Initializes an EncKDCRepPart object. | |
| * | |
| * @param encoding a single DER-encoded value. | |
| * @param rep_type type of the encrypted reply message. | |
| * @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 decoding an Realm object. | |
| */ | |
| protected void init(DerValue encoding, int rep_type) | |
| throws Asn1Exception, IOException, RealmException { | |
| DerValue der, subDer; | |
| //implementations return the incorrect tag value, so | |
| //we don't use the above line; instead we use the following | |
| msgType = (encoding.getTag() & (byte) 0x1F); | |
| if (msgType != Krb5.KRB_ENC_AS_REP_PART && | |
| msgType != Krb5.KRB_ENC_TGS_REP_PART) { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| der = encoding.getData().getDerValue(); | |
| if (der.getTag() != DerValue.tag_Sequence) { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| key = EncryptionKey.parse(der.getData(), (byte) 0x00, false); | |
| lastReq = LastReq.parse(der.getData(), (byte) 0x01, false); | |
| subDer = der.getData().getDerValue(); | |
| if ((subDer.getTag() & (byte) 0x1F) == (byte) 0x02) { | |
| nonce = subDer.getData().getBigInteger().intValue(); | |
| } else { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| } | |
| keyExpiration = KerberosTime.parse(der.getData(), (byte) 0x03, true); | |
| flags = TicketFlags.parse(der.getData(), (byte) 0x04, false); | |
| authtime = KerberosTime.parse(der.getData(), (byte) 0x05, false); | |
| starttime = KerberosTime.parse(der.getData(), (byte) 0x06, true); | |
| endtime = KerberosTime.parse(der.getData(), (byte) 0x07, false); | |
| renewTill = KerberosTime.parse(der.getData(), (byte) 0x08, true); | |
| Realm srealm = Realm.parse(der.getData(), (byte) 0x09, false); | |
| sname = PrincipalName.parse(der.getData(), (byte) 0x0A, false, srealm); | |
| if (der.getData().available() > 0) { | |
| caddr = HostAddresses.parse(der.getData(), (byte) 0x0B, true); | |
| } | |
| if (der.getData().available() > 0) { | |
| pAData = PAData.parseSequence(der.getData(), (byte) 0x0C, true); | |
| } | |
| // We observe extra data from MSAD | |
| /*if (der.getData().available() > 0) { | |
| throw new Asn1Exception(Krb5.ASN1_BAD_ID); | |
| }*/ | |
| } | |
| /** | |
| * Encodes an EncKDCRepPart object. | |
| * @param rep_type type of encrypted reply message. | |
| * @return byte array of encoded EncKDCRepPart 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(int rep_type) throws Asn1Exception, | |
| IOException { | |
| DerOutputStream bytes; | |
| DerOutputStream temp = new DerOutputStream(); | |
| DerOutputStream out = new DerOutputStream(); | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x00), key.asn1Encode()); | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x01), lastReq.asn1Encode()); | |
| temp.putInteger(BigInteger.valueOf(nonce)); | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x02), temp); | |
| if (keyExpiration != null) { | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x03), keyExpiration.asn1Encode()); | |
| } | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x04), flags.asn1Encode()); | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x05), authtime.asn1Encode()); | |
| if (starttime != null) { | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x06), starttime.asn1Encode()); | |
| } | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x07), endtime.asn1Encode()); | |
| if (renewTill != null) { | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x08), renewTill.asn1Encode()); | |
| } | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x09), sname.getRealm().asn1Encode()); | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x0A), sname.asn1Encode()); | |
| if (caddr != null) { | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x0B), caddr.asn1Encode()); | |
| } | |
| if (pAData != null && pAData.length > 0) { | |
| temp = new DerOutputStream(); | |
| for (int i = 0; i < pAData.length; i++) { | |
| temp.write(pAData[i].asn1Encode()); | |
| } | |
| bytes = new DerOutputStream(); | |
| bytes.write(DerValue.tag_SequenceOf, temp); | |
| out.write(DerValue.createTag(DerValue.TAG_CONTEXT, | |
| true, (byte) 0x0C), bytes); | |
| } | |
| //should use the rep_type to build the encoding | |
| //but other implementations do not; it is ignored and | |
| //the cached msgType is used instead | |
| temp = new DerOutputStream(); | |
| temp.write(DerValue.tag_Sequence, out); | |
| bytes = new DerOutputStream(); | |
| bytes.write(DerValue.createTag(DerValue.TAG_APPLICATION, | |
| true, (byte) msgType), temp); | |
| return bytes.toByteArray(); | |
| } | |
| } |