/*

 * Copyright (c) 1999, 2021, 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.ssl;

import java.security.*;

import java.util.*;

import static sun.security.util.SecurityConstants.PROVIDER_VER;

/**

 * The JSSE provider.

 *

 * SunJSSE now supports an experimental FIPS compliant mode when used with an

 * appropriate FIPS certified crypto provider. In FIPS mode, we:

 *  . allow only TLS 1.0 or later

 *  . allow only FIPS approved ciphersuites

 *  . perform all crypto in the FIPS crypto provider

 *

 * It is currently not possible to use both FIPS compliant SunJSSE and

 * standard JSSE at the same time because of the various static data structures

 * we use.

 *

 * However, we do want to allow FIPS mode to be enabled at runtime and without

 * editing the java.security file. That means we need to allow

 * Security.removeProvider("SunJSSE") to work, which creates an instance of

 * this class in non-FIPS mode. That is why we delay the selection of the mode

 * as long as possible. This is until we open an SSL/TLS connection and the

 * data structures need to be initialized or until SunJSSE is initialized in

 * FIPS mode.

 *

 */

public class SunJSSE extends java.security.Provider {

    @java.io.Serial

    private static final long serialVersionUID = 3231825739635378733L;

    private static final String info = "Sun JSSE provider" +

        "(PKCS12, SunX509/PKIX key/trust factories, " +

        "SSLv3/TLSv1/TLSv1.1/TLSv1.2/TLSv1.3/DTLSv1.0/DTLSv1.2)";

    public SunJSSE() {

        super("SunJSSE", PROVIDER_VER, info);

        registerAlgorithms();

    }

    @SuppressWarnings("removal")

    private void registerAlgorithms() {

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

            doRegister();

            return null;

        });

    }

    private void ps(String type, String algo, String cn,

            List<String> a, HashMap<String, String> attrs) {

        putService(new Provider.Service(this, type, algo, cn, a, attrs));

    }

    private void doRegister() {

        ps("Signature", "MD5andSHA1withRSA",

            "sun.security.ssl.RSASignature", null, null);

        ps("KeyManagerFactory", "SunX509",

            "sun.security.ssl.KeyManagerFactoryImpl$SunX509", null, null);

        ps("KeyManagerFactory", "NewSunX509",

            "sun.security.ssl.KeyManagerFactoryImpl$X509",

            List.of("PKIX"), null);

        ps("TrustManagerFactory", "SunX509",

            "sun.security.ssl.TrustManagerFactoryImpl$SimpleFactory",

            null, null);

        ps("TrustManagerFactory", "PKIX",

            "sun.security.ssl.TrustManagerFactoryImpl$PKIXFactory",

            List.of("SunPKIX", "X509", "X.509"), null);

        ps("SSLContext", "TLSv1",

            "sun.security.ssl.SSLContextImpl$TLS10Context",

            List.of("SSLv3"), null);

        ps("SSLContext", "TLSv1.1",

            "sun.security.ssl.SSLContextImpl$TLS11Context", null, null);

        ps("SSLContext", "TLSv1.2",

            "sun.security.ssl.SSLContextImpl$TLS12Context", null, null);

        ps("SSLContext", "TLSv1.3",

            "sun.security.ssl.SSLContextImpl$TLS13Context", null, null);

        ps("SSLContext", "TLS",

            "sun.security.ssl.SSLContextImpl$TLSContext",

            List.of("SSL"), null);

        ps("SSLContext", "DTLSv1.0",

            "sun.security.ssl.SSLContextImpl$DTLS10Context", null, null);

        ps("SSLContext", "DTLSv1.2",

            "sun.security.ssl.SSLContextImpl$DTLS12Context", null, null);

        ps("SSLContext", "DTLS",

            "sun.security.ssl.SSLContextImpl$DTLSContext", null, null);

        ps("SSLContext", "Default",

            "sun.security.ssl.SSLContextImpl$DefaultSSLContext", null, null);

        /*

         * KeyStore

         */

        ps("KeyStore", "PKCS12",

            "sun.security.pkcs12.PKCS12KeyStore", null, null);

    }

}