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 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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 * 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.
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 * 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).
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 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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package sun.security.ssl;

import java.security.*;
import java.util.*;
import static sun.security.util.SecurityConstants.PROVIDER_VER;
import static sun.security.util.SecurityProviderConstants.*;

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.
/**
 * 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 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();
    }

    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);
    }
}