62 lines
1.9 KiB
Java
62 lines
1.9 KiB
Java
/**
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*
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* Copyright 2016 Florian Schmaus
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.jivesoftware.smack.sasl.core;
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import java.security.NoSuchAlgorithmException;
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import java.security.cert.CertificateEncodingException;
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import javax.net.ssl.SSLPeerUnverifiedException;
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import org.jivesoftware.smack.SmackException;
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import org.jivesoftware.smack.util.TLSUtils;
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/**
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* SCRAM-X-PLUS implementation. Due limitations of the Java API, this mechanism only supports the 'tls-server-end-point'
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* channel binding type. But on the other hand, the other relevant channel binding type 'tls-unique' has some flaws (see
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* 3SHAKE, RFC 7627).
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*
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* @author Florian Schmaus
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*/
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public abstract class ScramPlusMechanism extends ScramMechanism {
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protected ScramPlusMechanism(ScramHmac scramHmac) {
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super(scramHmac);
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}
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@Override
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public String getName() {
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return super.getName() + "-PLUS";
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}
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@Override
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protected String getChannelBindingName() {
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return "p=tls-server-end-point";
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}
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@Override
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protected byte[] getChannelBindingData() throws SmackException {
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byte[] cbData;
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try {
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cbData = TLSUtils.getChannelBindingTlsServerEndPoint(sslSession);
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}
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catch (SSLPeerUnverifiedException | CertificateEncodingException | NoSuchAlgorithmException e) {
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throw new SmackException(e);
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}
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return cbData;
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}
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}
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