org.apache.xml.security.test.encryption.BobKeyResolver.java Source code

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Here is the source code for org.apache.xml.security.test.encryption.BobKeyResolver.java

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/*
 * Copyright  1999-2004 The Apache Software Foundation.
 *
 *  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.apache.xml.security.test.encryption;

import java.security.cert.X509Certificate;
import java.security.PublicKey;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;

import org.apache.xml.security.keys.content.KeyName;
import org.apache.xml.security.keys.keyresolver.KeyResolverException;
import org.apache.xml.security.keys.keyresolver.KeyResolverSpi;
import org.apache.xml.security.keys.storage.StorageResolver;
import org.apache.xml.security.utils.Constants;
import org.apache.xml.security.utils.XMLUtils;
import org.w3c.dom.Element;

/**
 * Test resolver - simply maps a key name to the appropriate key
 *
 * @author Berin Lautenbach
 */

public class BobKeyResolver extends KeyResolverSpi {

    /** {@link org.apache.commons.logging} logging facility */
    static org.apache.commons.logging.Log log = org.apache.commons.logging.LogFactory
            .getLog(BobKeyResolver.class.getName());

    KeyName _kn = null;

    /**
     * Method engineCanResolve
     *
     * @param element
     * @param BaseURI
     * @param storage
     *
     */

    public boolean engineCanResolve(Element element, String BaseURI, StorageResolver storage) {

        log.debug("Can I resolve " + element.getTagName());

        if (element == null) {
            return false;
        }

        boolean isKeyName = XMLUtils.elementIsInSignatureSpace(element, Constants._TAG_KEYNAME);

        try {
            if (isKeyName) {
                _kn = new KeyName(element, "");
                if (_kn.getKeyName().equals("bob")) {
                    return true;
                }
            }
        } catch (Exception e) {
            // Do nothing
        }

        return false;
    }

    /**
     * Method engineResolvePublicKey
     *
     * @param element
     * @param BaseURI
     * @param storage
     * @return null if no {@link PublicKey} could be obtained
     * @throws KeyResolverException
     */
    public PublicKey engineLookupAndResolvePublicKey(Element element, String BaseURI, StorageResolver storage)
            throws KeyResolverException {

        return null;
    }

    /**
     * Method engineResolveX509Certificate
     *
     * @param element
     * @param BaseURI
     * @param storage
     *
     * @throws KeyResolverException
     */
    public X509Certificate engineLookupResolveX509Certificate(Element element, String BaseURI,
            StorageResolver storage) throws KeyResolverException {
        return null;
    }

    /**
     * Method engineResolveSecretKey
     *
     * @param element
     * @param BaseURI
     * @param storage
     *
     * @throws KeyResolverException
     */
    public javax.crypto.SecretKey engineLookupAndResolveSecretKey(Element element, String BaseURI,
            StorageResolver storage) throws KeyResolverException {

        if (engineCanResolve(element, BaseURI, storage)) {
            try {
                DESedeKeySpec keySpec = new DESedeKeySpec("abcdefghijklmnopqrstuvwx".getBytes("ASCII"));
                SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DESede");
                SecretKey key = keyFactory.generateSecret(keySpec);

                return key;
            } catch (Exception e) {
                throw new KeyResolverException("Something badly wrong in creation of bob's key");
            }
        }

        return null;
    }
}