58 lines
1.9 KiB
Java
58 lines
1.9 KiB
Java
/*
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* Copyright 2018 Paul Schaub.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.pgpainless.key.protection;
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import javax.annotation.Nonnull;
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import org.pgpainless.algorithm.HashAlgorithm;
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import org.pgpainless.algorithm.SymmetricKeyAlgorithm;
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public class KeyRingProtectionSettings {
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private final SymmetricKeyAlgorithm encryptionAlgorithm;
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private final HashAlgorithm hashAlgorithm;
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private final int s2kCount;
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public KeyRingProtectionSettings(@Nonnull SymmetricKeyAlgorithm encryptionAlgorithm) {
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this(encryptionAlgorithm, HashAlgorithm.SHA1, 0x60); // Same s2kCount as used in BC.
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}
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public KeyRingProtectionSettings(@Nonnull SymmetricKeyAlgorithm encryptionAlgorithm, @Nonnull HashAlgorithm hashAlgorithm, int s2kCount) {
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this.encryptionAlgorithm = encryptionAlgorithm;
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this.hashAlgorithm = hashAlgorithm;
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if (s2kCount < 1) {
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throw new IllegalArgumentException("s2kCount cannot be less than 1.");
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}
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this.s2kCount = s2kCount;
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}
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public static KeyRingProtectionSettings secureDefaultSettings() {
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return new KeyRingProtectionSettings(SymmetricKeyAlgorithm.AES_256);
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}
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public @Nonnull SymmetricKeyAlgorithm getEncryptionAlgorithm() {
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return encryptionAlgorithm;
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}
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public @Nonnull HashAlgorithm getHashAlgorithm() {
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return hashAlgorithm;
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}
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public int getS2kCount() {
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return s2kCount;
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}
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}
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