org.wildfly.security.ssl.TLSServerEndPointChannelBinding Maven / Gradle / Ivy
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This artifact provides a single jar that contains all classes required to use remote EJB and JMS, including
all dependencies. It is intended for use by those not using maven, maven users should just import the EJB and
JMS BOM's instead (shaded JAR's cause lots of problems with maven, as it is very easy to inadvertently end up
with different versions on classes on the class path).
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/*
* JBoss, Home of Professional Open Source.
* Copyright 2017 Red Hat, Inc., and individual contributors
* as indicated by the @author tags.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.wildfly.security.ssl;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.X509Certificate;
import javax.security.auth.callback.UnsupportedCallbackException;
import org.wildfly.security.asn1.ASN1;
import org.wildfly.security.auth.callback.CallbackUtil;
import org.wildfly.security.auth.callback.ChannelBindingCallback;
/**
* Utilities for handling the "tls-server-end-point" channel binding strategy used by various types
* of authentication mechanisms.
*
* @author David M. Lloyd
*/
public final class TLSServerEndPointChannelBinding {
public static final String TLS_SERVER_ENDPOINT = "tls-server-end-point";
private TLSServerEndPointChannelBinding() {}
/**
* Get the digest algorithm that would be used for a given signature algorithm OID.
*
* @param sigAlgOID the signature algorithm OID (must not be {@code null})
* @return the digest algorithm, or {@code null} if the OID is not recognized
*/
public static String getDigestAlgorithm(final String sigAlgOID) {
switch (sigAlgOID) {
case ASN1.OID_MD2:
case ASN1.OID_MD2_WITH_RSA:
case ASN1.OID_MD4_WITH_RSA:
case ASN1.OID_MD5:
case ASN1.OID_MD5_WITH_RSA:
case ASN1.OID_SHA1_WITH_DSA:
case ASN1.OID_SHA1_WITH_RSA:
case ASN1.OID_SHA1_WITH_ECDSA:
case ASN1.OID_SHA1:
case ASN1.OID_SHA224_WITH_ECDSA:
case ASN1.OID_SHA256_WITH_RSA:
case ASN1.OID_SHA256_WITH_ECDSA:
return "SHA-256";
case ASN1.OID_SHA384_WITH_ECDSA:
case ASN1.OID_SHA384_WITH_RSA:
return "SHA-384";
case ASN1.OID_SHA512_WITH_ECDSA:
case ASN1.OID_SHA512_WITH_RSA:
return "SHA-512";
default: {
return null;
}
}
}
/**
* Convenience method to handle a channel binding callback.
*
* @param channelBindingCallback the callback (must not be {@code null})
* @param serverCerts the server certificate chain
* @throws UnsupportedCallbackException if the server certificates are not present or unsupported and the callback is not optional
*/
public static void handleChannelBindingCallback(ChannelBindingCallback channelBindingCallback, X509Certificate[] serverCerts) throws UnsupportedCallbackException {
if (serverCerts != null && serverCerts.length > 0) {
// tls-server-end-point
try {
final byte[] bindingData = getChannelBindingData(serverCerts[0]);
if (bindingData != null) {
channelBindingCallback.setBindingData(bindingData);
channelBindingCallback.setBindingType(TLS_SERVER_ENDPOINT);
return;
}
} catch (CertificateEncodingException | NoSuchAlgorithmException e) {
// fail silently
}
}
CallbackUtil.unsupported(channelBindingCallback);
}
static byte[] getChannelBindingData(X509Certificate serverCert) throws NoSuchAlgorithmException, CertificateEncodingException {
if (serverCert == null) {
return null;
}
final String digestAlgorithm = TLSServerEndPointChannelBinding.getDigestAlgorithm(serverCert.getSigAlgOID());
if (digestAlgorithm == null) {
return null;
}
return MessageDigest.getInstance(digestAlgorithm).digest(serverCert.getEncoded());
}
}