/*

 * Copyright (c) 2014, 2015, Oracle and/or its affiliates. All rights reserved.

 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.

 *

 * This code is free software; you can redistribute it and/or modify it

 * under the terms of the GNU General Public License version 2 only, as

 * published by the Free Software Foundation.  Oracle designates this

 * particular file as subject to the "Classpath" exception as provided

 * by Oracle in the LICENSE file that accompanied this code.

 *

 * This code is distributed in the hope that it will be useful, but WITHOUT

 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or

 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License

 * version 2 for more details (a copy is included in the LICENSE file that

 * accompanied this code).

 *

 * You should have received a copy of the GNU General Public License version

 * 2 along with this work; if not, write to the Free Software Foundation,

 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.

 *

 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA

 * or visit www.oracle.com if you need additional information or have any

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 */

package com.oracle.security.ucrypto;

import java.util.Set;

import java.util.Arrays;

import java.util.concurrent.ConcurrentSkipListSet;

import java.lang.ref.*;

import java.math.BigInteger;

import java.security.InvalidKeyException;

import java.security.NoSuchAlgorithmException;

import java.security.Key;

import java.security.PublicKey;

import java.security.PrivateKey;

import java.security.KeyFactorySpi;

import java.security.spec.*;

/**

 * Ucrypto-private KeyFactory class for generating native keys

 * needed for using ucrypto APIs.

 *

 * @since 9

 */

public final class NativeRSAKeyFactory extends KeyFactorySpi {

    @Override

    protected PrivateKey engineGeneratePrivate(KeySpec keySpec)

        throws InvalidKeySpecException {

        if (keySpec instanceof RSAPrivateCrtKeySpec) {

            return new NativeKey.RSAPrivateCrt(keySpec);

        } else if (keySpec instanceof RSAPrivateKeySpec) {

            return new NativeKey.RSAPrivate(keySpec);

        } else {

            throw new InvalidKeySpecException("Unsupported key spec." +

                " Received: " + keySpec.getClass().getName());

        }

    }

    @Override

    protected PublicKey engineGeneratePublic(KeySpec keySpec)

        throws InvalidKeySpecException {

        return new NativeKey.RSAPublic(keySpec);

    }

    @Override

    protected <T extends KeySpec> T

        engineGetKeySpec(Key key, Class<T> keySpec)

            throws InvalidKeySpecException {

        throw new UnsupportedOperationException();

    }

    @Override

    protected Key engineTranslateKey(Key key) throws InvalidKeyException {

        // no need to support this

        throw new UnsupportedOperationException();

    }

}