BouncyCastleUtil.java — netty Source File

Source Code

/*
 * Copyright 2025 The Netty Project
 *
 * The Netty Project licenses this file to you 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:
 *
 *   https://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.netty.handler.ssl.util;

import io.netty.util.internal.ThrowableUtil;
import io.netty.util.internal.logging.InternalLogger;
import io.netty.util.internal.logging.InternalLoggerFactory;

import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.Provider;
import java.security.Security;
import javax.net.ssl.SSLEngine;

/**
 * Contains methods that can be used to detect if BouncyCastle is available.
 */
public final class BouncyCastleUtil {
    private static final InternalLogger logger = InternalLoggerFactory.getInstance(BouncyCastleUtil.class);

    private static final String BC_PROVIDER_NAME = "BC";
    private static final String BC_PROVIDER = "org.bouncycastle.jce.provider.BouncyCastleProvider";
    private static final String BC_FIPS_PROVIDER_NAME = "BCFIPS";
    private static final String BC_FIPS_PROVIDER = "org.bouncycastle.jcajce.provider.BouncyCastleFipsProvider";
    private static final String BC_JSSE_PROVIDER_NAME = "BCJSSE";
    private static final String BC_JSSE_PROVIDER = "org.bouncycastle.jsse.provider.BouncyCastleJsseProvider";
    private static final String BC_PEMPARSER = "org.bouncycastle.openssl.PEMParser";
    private static final String BC_JSSE_SSLENGINE = "org.bouncycastle.jsse.BCSSLEngine";
    private static final String BC_JSSE_ALPN_SELECTOR = "org.bouncycastle.jsse.BCApplicationProtocolSelector";

    private static volatile Throwable unavailabilityCauseBcProv;
    private static volatile Throwable unavailabilityCauseBcPkix;
    private static volatile Throwable unavailabilityCauseBcTls;
    private static volatile Provider bcProviderJce;
    private static volatile Provider bcProviderJsse;
    private static volatile Class<? extends SSLEngine> bcSSLEngineClass;
    private static volatile boolean attemptedLoading;

    /**
     * Indicate whether the BouncyCastle Java Crypto Extensions provider is available.
     */
    public static boolean isBcProvAvailable() {
        ensureLoaded();
        return unavailabilityCauseBcProv == null;
    }

    /**
// ... (178 more lines)