/*

 * Copyright (c) 2005, 2014, 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

 * questions.

 */

package sun.security.mscapi;

import java.security.AccessController;

import java.security.PrivilegedAction;

import java.security.Provider;

import java.util.HashMap;

import java.util.Map;

/**

 * A Cryptographic Service Provider for the Microsoft Crypto API.

 *

 * @since 1.6

 */

public final class SunMSCAPI extends Provider {

    private static final long serialVersionUID = 8622598936488630849L; //TODO

    private static final String INFO = "Sun's Microsoft Crypto API provider";

    static {

        AccessController.doPrivileged(new PrivilegedAction<Void>() {

            public Void run() {

                System.loadLibrary("sunmscapi");

                return null;

            }

        });

    }

    public SunMSCAPI() {

        super("SunMSCAPI", 1.9d, INFO);

        // if there is no security manager installed, put directly into

        // the provider. Otherwise, create a temporary map and use a

        // doPrivileged() call at the end to transfer the contents

        final Map<Object, Object> map =

                (System.getSecurityManager() == null)

                ? this : new HashMap<Object, Object>();

        /*

         * Secure random

         */

        map.put("SecureRandom.Windows-PRNG", "sun.security.mscapi.PRNG");

        /*

         * Key store

         */

        map.put("KeyStore.Windows-MY", "sun.security.mscapi.KeyStore$MY");

        map.put("KeyStore.Windows-ROOT", "sun.security.mscapi.KeyStore$ROOT");

        /*

         * Signature engines

         */

        // NONEwithRSA must be supplied with a pre-computed message digest.

        // Only the following digest algorithms are supported: MD5, SHA-1,

        // SHA-256, SHA-384, SHA-512 and a special-purpose digest

        // algorithm which is a concatenation of SHA-1 and MD5 digests.

        map.put("Signature.NONEwithRSA",

            "sun.security.mscapi.RSASignature$Raw");

        map.put("Signature.SHA1withRSA",

            "sun.security.mscapi.RSASignature$SHA1");

        map.put("Signature.SHA256withRSA",

            "sun.security.mscapi.RSASignature$SHA256");

        map.put("Alg.Alias.Signature.1.2.840.113549.1.1.11",     "SHA256withRSA");

        map.put("Alg.Alias.Signature.OID.1.2.840.113549.1.1.11", "SHA256withRSA");

        map.put("Signature.SHA384withRSA",

            "sun.security.mscapi.RSASignature$SHA384");

        map.put("Alg.Alias.Signature.1.2.840.113549.1.1.12",     "SHA384withRSA");

        map.put("Alg.Alias.Signature.OID.1.2.840.113549.1.1.12", "SHA384withRSA");

        map.put("Signature.SHA512withRSA",

            "sun.security.mscapi.RSASignature$SHA512");

        map.put("Alg.Alias.Signature.1.2.840.113549.1.1.13",     "SHA512withRSA");

        map.put("Alg.Alias.Signature.OID.1.2.840.113549.1.1.13", "SHA512withRSA");

        map.put("Signature.MD5withRSA",

            "sun.security.mscapi.RSASignature$MD5");

        map.put("Signature.MD2withRSA",

            "sun.security.mscapi.RSASignature$MD2");

        // supported key classes

        map.put("Signature.NONEwithRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        map.put("Signature.SHA1withRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        map.put("Signature.SHA256withRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        map.put("Signature.SHA384withRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        map.put("Signature.SHA512withRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        map.put("Signature.MD5withRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        map.put("Signature.MD2withRSA SupportedKeyClasses",

            "sun.security.mscapi.Key");

        /*

         * Key Pair Generator engines

         */

        map.put("KeyPairGenerator.RSA",

            "sun.security.mscapi.RSAKeyPairGenerator");

        map.put("KeyPairGenerator.RSA KeySize", "1024");

        /*

         * Cipher engines

         */

        map.put("Cipher.RSA", "sun.security.mscapi.RSACipher");

        map.put("Cipher.RSA/ECB/PKCS1Padding",

            "sun.security.mscapi.RSACipher");

        map.put("Cipher.RSA SupportedModes", "ECB");

        map.put("Cipher.RSA SupportedPaddings", "PKCS1PADDING");

        map.put("Cipher.RSA SupportedKeyClasses", "sun.security.mscapi.Key");

        if (map != this) {

            final Provider provider = this;

            PrivilegedAction<Void> putAllAction = () -> {

                provider.putAll(map);

                return null;

            };

            AccessController.doPrivileged(putAllAction);

        }

    }

}