org.wildfly.security.password.impl.MaskedPasswordAlgorithmParametersSpiImpl Maven / Gradle / Ivy
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* JBoss, Home of Professional Open Source.
* Copyright 2016 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.password.impl;
import java.security.AlgorithmParametersSpi;
import org.wildfly.security.asn1.ASN1Decoder;
import org.wildfly.security.asn1.ASN1Encoder;
import org.wildfly.security.password.spec.MaskedPasswordAlgorithmSpec;
import org.wildfly.security.util.AbstractAlgorithmParametersSpiImpl;
/**
* An implementation of the {@link AlgorithmParametersSpi} SPI, in order to support encoding and decoding of
* password algorithm parameters.
*
* @author David M. Lloyd
*/
public final class MaskedPasswordAlgorithmParametersSpiImpl extends AbstractAlgorithmParametersSpiImpl {
/**
* Construct a new instance.
*/
public MaskedPasswordAlgorithmParametersSpiImpl() {
}
protected Class getParameterType() {
return MaskedPasswordAlgorithmSpec.class;
}
protected void engineEncode(final ASN1Encoder encoder, final MaskedPasswordAlgorithmSpec parameterSpec) {
encoder.startSequence();
encoder.encodeOctetString(new String(parameterSpec.getInitialKeyMaterial()));
encoder.encodeInteger(parameterSpec.getIterationCount());
encoder.encodeOctetString(parameterSpec.getSalt());
if (parameterSpec.getInitializationVector() != null) {
encoder.encodeOctetString(parameterSpec.getInitializationVector());
}
encoder.endSequence();
}
protected MaskedPasswordAlgorithmSpec engineDecode(final ASN1Decoder decoder) {
decoder.startSequence();
final char[] initialKeyMaterial = decoder.decodeOctetStringAsString().toCharArray();
final int iterationCount = decoder.decodeInteger().intValue();
final byte[] salt = decoder.decodeOctetString();
final byte[] initializationVector = decoder.hasNextElement() ? decoder.decodeOctetString() : null;
decoder.endSequence();
return new MaskedPasswordAlgorithmSpec(initialKeyMaterial, iterationCount, salt, initializationVector);
}
}