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The Apache WSS4J project provides a Java implementation of the primary security standards
for Web Services, namely the OASIS Web Services Security (WS-Security) specifications
from the OASIS Web Services Security TC.
/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.ws.security.components.crypto;
import org.apache.ws.security.WSSecurityException;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.security.InvalidAlgorithmParameterException;
import java.security.KeyStoreException;
import java.security.NoSuchAlgorithmException;
import java.security.cert.CertPath;
import java.security.cert.CertPathValidator;
import java.security.cert.CertPathValidatorException;
import java.security.cert.CertificateEncodingException;
import java.security.cert.CertificateException;
import java.security.cert.CertificateFactory;
import java.security.cert.PKIXParameters;
import java.security.cert.X509Certificate;
import java.util.Arrays;
import java.util.Iterator;
import java.util.List;
import java.util.Properties;
import java.util.Vector;
/**
* JDK1.4 based implementation of Crypto (uses keystore).
*
*
* @author Davanum Srinivas ([email protected]).
*/
public class BouncyCastle extends AbstractCrypto {
/**
* Constructor.
*
*
* @param properties
* @throws CredentialException
* @throws java.io.IOException
*/
public BouncyCastle(Properties properties) throws CredentialException, IOException {
super(properties);
}
public BouncyCastle(Properties properties, ClassLoader loader)
throws CredentialException, IOException {
super(properties,loader);
}
/**
* Construct an array of X509Certificate's from the byte array.
*
*
* @param data The byte array containing the X509 data
* @param reverse If set the first certificate in input data will
* the last in the array
* @return An array of X509 certificates, ordered according to
* the reverse flag
* @throws org.apache.ws.security.WSSecurityException
*
*/
public X509Certificate[] getX509Certificates(byte[] data, boolean reverse)
throws WSSecurityException {
InputStream in = new ByteArrayInputStream(data);
CertPath path = null;
try {
CertificateFactory factory = CertificateFactory.getInstance("X.509");
path = factory.generateCertPath(in);
} catch (CertificateException e) {
throw new WSSecurityException(
WSSecurityException.SECURITY_TOKEN_UNAVAILABLE, "parseError", null, e
);
}
List l = path.getCertificates();
X509Certificate[] certs = new X509Certificate[l.size()];
Iterator iterator = l.iterator();
for (int i = 0; i < l.size(); i++) {
certs[(reverse) ? (l.size() - 1 - i) : i] = (X509Certificate) iterator.next();
}
return certs;
}
/**
* get a byte array given an array of X509 certificates.
*
*
* @param reverse If set the first certificate in the array data will
* the last in the byte array
* @param certs The certificates to convert
* @return The byte array for the certificates ordered according
* to the reverse flag
* @throws org.apache.ws.security.WSSecurityException
*
*/
public byte[] getCertificateData(boolean reverse, X509Certificate[] certs)
throws WSSecurityException {
List list = new Vector();
for (int i = 0; i < certs.length; i++) {
if (reverse) {
list.add(0, certs[i]);
} else {
list.add(certs[i]);
}
}
try {
CertificateFactory factory = CertificateFactory.getInstance("X.509");
CertPath path = factory.generateCertPath(list);
return path.getEncoded();
} catch (CertificateEncodingException e) {
throw new WSSecurityException(
WSSecurityException.SECURITY_TOKEN_UNAVAILABLE, "encodeError", null, e
);
} catch (CertificateException e) {
throw new WSSecurityException(
WSSecurityException.SECURITY_TOKEN_UNAVAILABLE, "parseError", null, e
);
}
}
/**
* Uses the CertPath API to validate a given certificate chain
*
* @param certs Certificate chain to validate
* @return true if the certificate chain is valid, false otherwise
* @throws org.apache.ws.security.WSSecurityException
*
*/
public boolean validateCertPath(X509Certificate[] certs) throws WSSecurityException {
try {
// Generate cert path
List certList = Arrays.asList(certs);
CertificateFactory factory = CertificateFactory.getInstance("X.509");
CertPath path = factory.generateCertPath(certList);
// Use the certificates in the keystore as TrustAnchors
PKIXParameters param = new PKIXParameters(this.keystore);
// Do not check a revocation list
param.setRevocationEnabled(false);
// Verify the trust path using the above settings
CertPathValidator certPathValidator = CertPathValidator.getInstance("PKIX");
certPathValidator.validate(path, param);
} catch (NoSuchAlgorithmException ex) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"certpath",
new Object[]{ex.getMessage()},
(Throwable) ex);
} catch (CertificateException ex) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"certpath",
new Object[]{ex.getMessage()},
(Throwable) ex);
} catch (InvalidAlgorithmParameterException ex) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"certpath",
new Object[]{ex.getMessage()},
(Throwable) ex);
} catch (KeyStoreException ex) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"certpath",
new Object[]{ex.getMessage()},
(Throwable) ex);
} catch (CertPathValidatorException ex) {
throw new WSSecurityException(WSSecurityException.FAILURE,
"certpath",
new Object[]{ex.getMessage()},
(Throwable) ex);
}
return true;
}
}