pgpainless/pgpainless-core/src/main/java/org/pgpainless/algorithm/AlgorithmSuite.java

75 lines
2.8 KiB
Java

/*
* Copyright 2018 Paul Schaub.
*
* 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.pgpainless.algorithm;
import java.util.Arrays;
import java.util.Collections;
import java.util.LinkedHashSet;
import java.util.List;
import java.util.Set;
/**
* The {@link AlgorithmSuite} class is consulted when new OpenPGP keys are being generated to set
* preferred algorithms on the key.
*/
public class AlgorithmSuite {
private static AlgorithmSuite defaultAlgorithmSuite = new AlgorithmSuite(
Arrays.asList(
SymmetricKeyAlgorithm.AES_256,
SymmetricKeyAlgorithm.AES_192,
SymmetricKeyAlgorithm.AES_128),
Arrays.asList(
HashAlgorithm.SHA512,
HashAlgorithm.SHA384,
HashAlgorithm.SHA256,
HashAlgorithm.SHA224),
Arrays.asList(
CompressionAlgorithm.ZLIB,
CompressionAlgorithm.BZIP2,
CompressionAlgorithm.ZIP,
CompressionAlgorithm.UNCOMPRESSED)
);
private final Set<SymmetricKeyAlgorithm> symmetricKeyAlgorithms;
private final Set<HashAlgorithm> hashAlgorithms;
private final Set<CompressionAlgorithm> compressionAlgorithms;
public AlgorithmSuite(List<SymmetricKeyAlgorithm> symmetricKeyAlgorithms,
List<HashAlgorithm> hashAlgorithms,
List<CompressionAlgorithm> compressionAlgorithms) {
this.symmetricKeyAlgorithms = Collections.unmodifiableSet(new LinkedHashSet<>(symmetricKeyAlgorithms));
this.hashAlgorithms = Collections.unmodifiableSet(new LinkedHashSet<>(hashAlgorithms));
this.compressionAlgorithms = Collections.unmodifiableSet(new LinkedHashSet<>(compressionAlgorithms));
}
public Set<SymmetricKeyAlgorithm> getSymmetricKeyAlgorithms() {
return new LinkedHashSet<>(symmetricKeyAlgorithms);
}
public Set<HashAlgorithm> getHashAlgorithms() {
return new LinkedHashSet<>(hashAlgorithms);
}
public Set<CompressionAlgorithm> getCompressionAlgorithms() {
return new LinkedHashSet<>(compressionAlgorithms);
}
public static AlgorithmSuite getDefaultAlgorithmSuite() {
return defaultAlgorithmSuite;
}
}