KeyRingProtectionSettings.java
// SPDX-FileCopyrightText: 2018 Paul Schaub <vanitasvitae@fsfe.org>
//
// SPDX-License-Identifier: Apache-2.0
package org.pgpainless.key.protection;
import javax.annotation.Nonnull;
import org.pgpainless.algorithm.HashAlgorithm;
import org.pgpainless.algorithm.SymmetricKeyAlgorithm;
public class KeyRingProtectionSettings {
private final SymmetricKeyAlgorithm encryptionAlgorithm;
private final HashAlgorithm hashAlgorithm;
private final int s2kCount;
public KeyRingProtectionSettings(@Nonnull SymmetricKeyAlgorithm encryptionAlgorithm) {
this(encryptionAlgorithm, HashAlgorithm.SHA1, 0x60); // Same s2kCount as used in BC.
}
public KeyRingProtectionSettings(@Nonnull SymmetricKeyAlgorithm encryptionAlgorithm, @Nonnull HashAlgorithm hashAlgorithm, int s2kCount) {
this.encryptionAlgorithm = encryptionAlgorithm;
this.hashAlgorithm = hashAlgorithm;
if (s2kCount < 1) {
throw new IllegalArgumentException("s2kCount cannot be less than 1.");
}
this.s2kCount = s2kCount;
}
public static KeyRingProtectionSettings secureDefaultSettings() {
return new KeyRingProtectionSettings(SymmetricKeyAlgorithm.AES_256);
}
public @Nonnull SymmetricKeyAlgorithm getEncryptionAlgorithm() {
return encryptionAlgorithm;
}
public @Nonnull HashAlgorithm getHashAlgorithm() {
return hashAlgorithm;
}
public int getS2kCount() {
return s2kCount;
}
}