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/*
* 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.shardingsphere.encrypt.algorithm.assisted;
import lombok.EqualsAndHashCode;
import lombok.Getter;
import org.apache.shardingsphere.encrypt.spi.EncryptAlgorithm;
import org.apache.shardingsphere.encrypt.spi.EncryptAlgorithmMetaData;
import org.apache.shardingsphere.infra.algorithm.core.context.AlgorithmSQLContext;
import org.apache.shardingsphere.infra.algorithm.messagedigest.core.MessageDigestAlgorithm;
import org.apache.shardingsphere.infra.spi.type.typed.TypedSPILoader;
import java.util.Properties;
/**
* MD5 assisted encrypt algorithm.
*/
@EqualsAndHashCode
public final class MD5AssistedEncryptAlgorithm implements EncryptAlgorithm {
@Getter
private final EncryptAlgorithmMetaData metaData = new EncryptAlgorithmMetaData(false, true, false, new Properties());
private MessageDigestAlgorithm digestAlgorithm;
@Override
public void init(final Properties props) {
digestAlgorithm = TypedSPILoader.getService(MessageDigestAlgorithm.class, getType(), props);
}
@Override
public String encrypt(final Object plainValue, final AlgorithmSQLContext algorithmSQLContext) {
return digestAlgorithm.digest(plainValue);
}
@Override
public Object decrypt(final Object cipherValue, final AlgorithmSQLContext algorithmSQLContext) {
throw new UnsupportedOperationException(String.format("Algorithm `%s` is unsupported to decrypt", getType()));
}
@Override
public String getType() {
return "MD5";
}
}