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8148421: Transport Layer Security (TLS) Session Hash and Extended Master Secret Extension

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Co-authored-by: Martin Balao <mbalao@redhat.com>
Reviewed-by: jnimeh, ahgross, rhalade, wetmore
This commit is contained in:
Xue-Lei Andrew Fan 2017-12-08 16:41:30 +00:00
parent f29e21abb1
commit 82bf0799c6
15 changed files with 448 additions and 64 deletions
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70
src/java.base/share/classes/sun/security/ssl/ExtendedMasterSecretExtension.java Normal file
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/*
* Copyright (c) 2017, Red Hat, Inc. and/or its affiliates.
*
* 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.
*
* 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.ssl;
import java.io.IOException;
import javax.net.ssl.SSLProtocolException;
/**
* Extended Master Secret TLS extension (TLS 1.0+). This extension
* defines how to calculate the TLS connection master secret and
* mitigates some types of man-in-the-middle attacks.
*
* See further information in
* <a href="https://tools.ietf.org/html/rfc7627">RFC 7627</a>.
*
* @author Martin Balao (mbalao@redhat.com)
*/
final class ExtendedMasterSecretExtension extends HelloExtension {
ExtendedMasterSecretExtension() {
super(ExtensionType.EXT_EXTENDED_MASTER_SECRET);
}
ExtendedMasterSecretExtension(HandshakeInStream s,
int len) throws IOException {
super(ExtensionType.EXT_EXTENDED_MASTER_SECRET);
if (len != 0) {
throw new SSLProtocolException("Invalid " + type + " extension");
}
}
@Override
int length() {
return 4; // 4: extension type and length fields
}
@Override
void send(HandshakeOutStream s) throws IOException {
s.putInt16(type.id); // ExtensionType extension_type;
s.putInt16(0); // extension_data length
}
@Override
public String toString() {
return "Extension " + type;
}
}