| /* |
| * 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. |
| * |
| * <xmp> |
| * 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 |
| * } |
| * </xmp> |
| * |
| * <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(); |
| } |
| } |
