SolitaryPassphraseProvider.java

/*
 * Copyright 2020 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.key.protection.passphrase_provider;

import javax.annotation.Nullable;

import org.pgpainless.util.Passphrase;

/**
 * Implementation of the {@link SecretKeyPassphraseProvider} that holds a single {@link Passphrase}.
 */
public class SolitaryPassphraseProvider implements SecretKeyPassphraseProvider {

    private final Passphrase passphrase;

    public SolitaryPassphraseProvider(Passphrase passphrase) {
        this.passphrase = passphrase;
    }

    @Nullable
    @Override
    public Passphrase getPassphraseFor(Long keyId) {
        // always return the same passphrase.
        return passphrase;
    }

    @Override
    public boolean hasPassphrase(Long keyId) {
        return true;
    }
}