/* * Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved. * 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. */ package sun.security.jgss.krb5; import org.ietf.jgss.*;import java.io.InputStream;import java.io.OutputStream;import java.io.IOException;import java.io.ByteArrayOutputStream; /** * This class represents the new format of GSS MIC tokens, as specified * in RFC 4121 * * MIC tokens = { 16-byte token-header | HMAC } * where HMAC is on { plaintext | 16-byte token-header } * * @author Seema Malkani */ class MicToken_v2 extends MessageToken_v2 { public MicToken_v2(Krb5Context context, byte[] tokenBytes, int tokenOffset, int tokenLen, MessageProp prop) throws GSSException { super(Krb5Token.MIC_ID_v2, context, tokenBytes, tokenOffset, tokenLen, prop); } public MicToken_v2(Krb5Context context, InputStream is, MessageProp prop) throws GSSException { super(Krb5Token.MIC_ID_v2, context, is, prop); } public void verify(byte[] data, int offset, int len) throws GSSException { if (!verifySign(data, offset, len)) throw new GSSException(GSSException.BAD_MIC, -1, "Corrupt checksum or sequence number in MIC token"); } public void verify(InputStream data) throws GSSException { byte[] dataBytes = null; try { dataBytes = new byte[data.available()]; data.read(dataBytes); } catch (IOException e) { // Error reading application data throw new GSSException(GSSException.BAD_MIC, -1, "Corrupt checksum or sequence number in MIC token"); } verify(dataBytes, 0, dataBytes.length); } public MicToken_v2(Krb5Context context, MessageProp prop, byte[] data, int pos, int len) throws GSSException { super(Krb5Token.MIC_ID_v2, context); // debug("Application data to MicToken verify is [" + // getHexBytes(data, pos, len) + "]\n"); if (prop == null) prop = new MessageProp(0, false); genSignAndSeqNumber(prop, data, pos, len); } public MicToken_v2(Krb5Context context, MessageProp prop, InputStream data) throws GSSException, IOException { super(Krb5Token.MIC_ID_v2, context); byte[] dataBytes = new byte[data.available()]; data.read(dataBytes); // debug("Application data to MicToken cons is [" + // getHexBytes(dataBytes) + "]\n"); if (prop == null) prop = new MessageProp(0, false); genSignAndSeqNumber(prop, dataBytes, 0, dataBytes.length); } public byte[] encode() throws IOException { // XXX Fine tune this initial size ByteArrayOutputStream bos = new ByteArrayOutputStream(50); encode(bos); return bos.toByteArray(); } public int encode(byte[] outToken, int offset) throws IOException { byte[] token = encode(); System.arraycopy(token, 0, outToken, offset, token.length); return token.length; } public void encode(OutputStream os) throws IOException { encodeHeader(os); os.write(checksum); }}
/*
* Copyright (c) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
* 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.
*/
package sun.security.jgss.krb5;
import org.ietf.jgss.*;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.IOException;
import java.io.ByteArrayOutputStream;
/**
* This class represents the new format of GSS MIC tokens, as specified
* in RFC 4121
*
* MIC tokens = { 16-byte token-header | HMAC }
* where HMAC is on { plaintext | 16-byte token-header }
*
* @author Seema Malkani
*/
class MicToken_v2 extends MessageToken_v2 {
public MicToken_v2(Krb5Context context,
byte[] tokenBytes, int tokenOffset, int tokenLen,
MessageProp prop) throws GSSException {
super(Krb5Token.MIC_ID_v2, context,
tokenBytes, tokenOffset, tokenLen, prop);
}
public MicToken_v2(Krb5Context context, InputStream is, MessageProp prop)
throws GSSException {
super(Krb5Token.MIC_ID_v2, context, is, prop);
}
public void verify(byte[] data, int offset, int len) throws GSSException {
if (!verifySign(data, offset, len))
throw new GSSException(GSSException.BAD_MIC, -1,
"Corrupt checksum or sequence number in MIC token");
}
public void verify(InputStream data) throws GSSException {
byte[] dataBytes = null;
try {
dataBytes = new byte[data.available()];
data.read(dataBytes);
} catch (IOException e) {
// Error reading application data
throw new GSSException(GSSException.BAD_MIC, -1,
"Corrupt checksum or sequence number in MIC token");
}
verify(dataBytes, 0, dataBytes.length);
}
public MicToken_v2(Krb5Context context, MessageProp prop,
byte[] data, int pos, int len)
throws GSSException {
super(Krb5Token.MIC_ID_v2, context);
// debug("Application data to MicToken verify is [" +
// getHexBytes(data, pos, len) + "]\n");
if (prop == null) prop = new MessageProp(0, false);
genSignAndSeqNumber(prop, data, pos, len);
}
public MicToken_v2(Krb5Context context, MessageProp prop, InputStream data)
throws GSSException, IOException {
super(Krb5Token.MIC_ID_v2, context);
byte[] dataBytes = new byte[data.available()];
data.read(dataBytes);
// debug("Application data to MicToken cons is [" +
// getHexBytes(dataBytes) + "]\n");
if (prop == null) prop = new MessageProp(0, false);
genSignAndSeqNumber(prop, dataBytes, 0, dataBytes.length);
}
public byte[] encode() throws IOException {
// XXX Fine tune this initial size
ByteArrayOutputStream bos = new ByteArrayOutputStream(50);
encode(bos);
return bos.toByteArray();
}
public int encode(byte[] outToken, int offset) throws IOException {
byte[] token = encode();
System.arraycopy(token, 0, outToken, offset, token.length);
return token.length;
}
public void encode(OutputStream os) throws IOException {
encodeHeader(os);
os.write(checksum);
}
}