0N/A/*
2362N/A * Copyright (c) 2005, 2009, Oracle and/or its affiliates. All rights reserved.
0N/A * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
0N/A *
0N/A * This code is free software; you can redistribute it and/or modify it
0N/A * under the terms of the GNU General Public License version 2 only, as
2362N/A * published by the Free Software Foundation. Oracle designates this
0N/A * particular file as subject to the "Classpath" exception as provided
2362N/A * by Oracle in the LICENSE file that accompanied this code.
0N/A *
0N/A * This code is distributed in the hope that it will be useful, but WITHOUT
0N/A * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
0N/A * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
0N/A * version 2 for more details (a copy is included in the LICENSE file that
0N/A * accompanied this code).
0N/A *
0N/A * You should have received a copy of the GNU General Public License version
0N/A * 2 along with this work; if not, write to the Free Software Foundation,
0N/A * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
0N/A *
2362N/A * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
2362N/A * or visit www.oracle.com if you need additional information or have any
2362N/A * questions.
0N/A */
0N/A
0N/Apackage sun.security.krb5.internal;
0N/A
0N/Aimport sun.security.util.*;
0N/Aimport sun.security.krb5.Asn1Exception;
0N/Aimport java.io.IOException;
1707N/Aimport sun.security.krb5.internal.util.KerberosString;
0N/A
0N/A/**
0N/A * Implements the ASN.1 ETYPE-INFO-ENTRY type.
0N/A *
0N/A * ETYPE-INFO2-ENTRY ::= SEQUENCE {
0N/A * etype [0] Int32,
0N/A * salt [1] KerberosString OPTIONAL,
0N/A * s2kparams [2] OCTET STRING OPTIONAL
0N/A * }
0N/A *
0N/A * @author Seema Malkani
0N/A */
0N/A
0N/Apublic class ETypeInfo2 {
0N/A
0N/A private int etype;
0N/A private String saltStr = null;
0N/A private byte[] s2kparams = null;
0N/A
0N/A private static final byte TAG_TYPE = 0;
0N/A private static final byte TAG_VALUE1 = 1;
0N/A private static final byte TAG_VALUE2 = 2;
0N/A
0N/A private ETypeInfo2() {
0N/A }
0N/A
1707N/A public ETypeInfo2(int etype, String salt, byte[] s2kparams) {
0N/A this.etype = etype;
1707N/A this.saltStr = salt;
0N/A if (s2kparams != null) {
0N/A this.s2kparams = s2kparams.clone();
0N/A }
0N/A }
0N/A
0N/A public Object clone() {
0N/A ETypeInfo2 etypeInfo2 = new ETypeInfo2();
0N/A etypeInfo2.etype = etype;
0N/A etypeInfo2.saltStr = saltStr;
0N/A if (s2kparams != null) {
0N/A etypeInfo2.s2kparams = new byte[s2kparams.length];
0N/A System.arraycopy(s2kparams, 0, etypeInfo2.s2kparams,
0N/A 0, s2kparams.length);
0N/A }
0N/A return etypeInfo2;
0N/A }
0N/A
0N/A /**
0N/A * Constructs a ETypeInfo2 object.
0N/A * @param encoding a DER-encoded data.
0N/A * @exception Asn1Exception if an error occurs while decoding an
0N/A * ASN1 encoded data.
0N/A * @exception IOException if an I/O error occurs while reading encoded data.
0N/A */
0N/A public ETypeInfo2(DerValue encoding) throws Asn1Exception, IOException {
0N/A DerValue der = null;
0N/A
0N/A if (encoding.getTag() != DerValue.tag_Sequence) {
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A }
0N/A
0N/A // etype
0N/A der = encoding.getData().getDerValue();
0N/A if ((der.getTag() & 0x1F) == 0x00) {
0N/A this.etype = der.getData().getBigInteger().intValue();
0N/A }
0N/A else
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A
0N/A // salt
0N/A if (encoding.getData().available() > 0) {
52N/A if ((encoding.getData().peekByte() & 0x1F) == 0x01) {
52N/A der = encoding.getData().getDerValue();
1707N/A this.saltStr = new KerberosString(
1707N/A der.getData().getDerValue()).toString();
0N/A }
0N/A }
0N/A
0N/A // s2kparams
0N/A if (encoding.getData().available() > 0) {
52N/A if ((encoding.getData().peekByte() & 0x1F) == 0x02) {
52N/A der = encoding.getData().getDerValue();
0N/A this.s2kparams = der.getData().getOctetString();
0N/A }
0N/A }
0N/A
0N/A if (encoding.getData().available() > 0)
0N/A throw new Asn1Exception(Krb5.ASN1_BAD_ID);
0N/A }
0N/A
0N/A /**
0N/A * Encodes this object to an OutputStream.
0N/A *
0N/A * @return byte array of the encoded data.
0N/A * @exception IOException if an I/O error occurs while reading encoded data.
0N/A * @exception Asn1Exception on encoding errors.
0N/A */
0N/A public byte[] asn1Encode() throws Asn1Exception, IOException {
0N/A
0N/A DerOutputStream bytes = new DerOutputStream();
0N/A DerOutputStream temp = new DerOutputStream();
0N/A
0N/A temp.putInteger(etype);
0N/A bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
0N/A TAG_TYPE), temp);
0N/A
0N/A if (saltStr != null) {
0N/A temp = new DerOutputStream();
1707N/A temp.putDerValue(new KerberosString(saltStr).toDerValue());
0N/A bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
0N/A TAG_VALUE1), temp);
0N/A }
0N/A if (s2kparams != null) {
0N/A temp = new DerOutputStream();
0N/A temp.putOctetString(s2kparams);
0N/A bytes.write(DerValue.createTag(DerValue.TAG_CONTEXT, true,
0N/A TAG_VALUE2), temp);
0N/A }
0N/A
0N/A temp = new DerOutputStream();
0N/A temp.write(DerValue.tag_Sequence, bytes);
0N/A return temp.toByteArray();
0N/A }
0N/A
0N/A // accessor methods
0N/A public int getEType() {
0N/A return etype;
0N/A }
0N/A
1707N/A public String getSalt() {
1707N/A return saltStr;
0N/A }
0N/A
0N/A public byte[] getParams() {
0N/A return ((s2kparams == null) ? null : s2kparams.clone());
0N/A }
0N/A
0N/A}