nl.altindag.ssl.pem.decryptor.PemDecryptor Maven / Gradle / Ivy

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/*
 * Copyright 2019 Thunderberry.
 *
 * 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
 *
 *      https://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 nl.altindag.ssl.pem.decryptor;

import nl.altindag.ssl.pem.util.PemUtils;
import org.bouncycastle.openssl.PEMDecryptorProvider;
import org.bouncycastle.openssl.jcajce.JcePEMDecryptorProviderBuilder;

import static nl.altindag.ssl.util.internal.ValidationUtils.requireNotNull;

/**
 * NOTE:
 * Please don't use this class directly as it is part of the internal API. Class name and methods can be changed any time.
 * Instead use the {@link PemUtils PemUtils} which provides the same functionality
 * while it has a stable API because it is part of the public API.
 *
 * @author Hakan Altindag
 */
public final class PemDecryptor implements BouncyFunction {

    private static final PemDecryptor INSTANCE = new PemDecryptor();
    private static final JcePEMDecryptorProviderBuilder PEM_DECRYPTOR_PROVIDER_BUILDER = new JcePEMDecryptorProviderBuilder();

    private PemDecryptor() {}

    @Override
    public PEMDecryptorProvider apply(char[] password) {
        requireNotNull(password, "A password is mandatory with an encrypted key");
        return PEM_DECRYPTOR_PROVIDER_BUILDER.build(password);
    }

    public static BouncyFunction getInstance() {
        return INSTANCE;
    }

}