JcaEncryptor.java

/*
 * GordianKnot: Security Suite
 * Copyright 2012-2026. Tony Washer
 *
 * 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 io.github.tonywasher.joceanus.gordianknot.impl.jca.encrypt;

import io.github.tonywasher.joceanus.gordianknot.api.base.GordianException;
import io.github.tonywasher.joceanus.gordianknot.impl.core.exc.GordianCryptoException;
import io.github.tonywasher.joceanus.gordianknot.impl.jca.base.JcaProvider;

import javax.crypto.Cipher;
import javax.crypto.NoSuchPaddingException;
import java.security.NoSuchAlgorithmException;

/**
 * JCA Encryptor classes.
 */
public final class JcaEncryptor {
    /**
     * Private constructor.
     */
    private JcaEncryptor() {
    }

    /**
     * Create the BouncyCastle KeyFactory via JCA.
     *
     * @param pAlgorithm the Algorithm
     * @return the KeyFactory
     * @throws GordianException on error
     */
    static Cipher getJavaEncryptor(final String pAlgorithm) throws GordianException {
        /* Protect against exceptions */
        try {
            /* Return a Cipher for the algorithm */
            return Cipher.getInstance(pAlgorithm, JcaProvider.BCPROV);

            /* Catch exceptions */
        } catch (NoSuchAlgorithmException
                 | NoSuchPaddingException e) {
            /* Throw the exception */
            throw new GordianCryptoException("Failed to create Cipher", e);
        }
    }
}