BouncyCastleUtil Class — netty Architecture

Source Code

handler/src/main/java/io/netty/handler/ssl/util/BouncyCastleUtil.java lines 31–237

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;
    }

    /**
     * Indicate whether the BouncyCastle Public-Key Infrastructure utilities are available.
     */
    public static boolean isBcPkixAvailable() {
        ensureLoaded();
        return unavailabilityCauseBcPkix == null;
    }

    /**
     * Indicate whether the BouncyCastle Java Secure Socket Extensions provider is available.
     */
    public static boolean isBcTlsAvailable() {
        ensureLoaded();
        return unavailabilityCauseBcTls == null;
    }

    /**
     * @return the cause if unavailable. {@code null} if available.
     */
    public static Throwable unavailabilityCauseBcProv() {
        ensureLoaded();
        return unavailabilityCauseBcProv;
    }

    /**
     * @return the cause if unavailable. {@code null} if available.
     */
    public static Throwable unavailabilityCauseBcPkix() {
        ensureLoaded();
        return unavailabilityCauseBcPkix;
    }

    /**
     * @return the cause if unavailable. {@code null} if available.
     */
    public static Throwable unavailabilityCauseBcTls() {
        ensureLoaded();
        return unavailabilityCauseBcTls;
    }

    /**
     * Indicates whether the given SSLEngine is implemented by BouncyCastle.
     */
    public static boolean isBcJsseInUse(SSLEngine engine) {
        ensureLoaded();
        Class<? extends SSLEngine> bcEngineClass = bcSSLEngineClass;
        return bcEngineClass != null && bcEngineClass.isInstance(engine);
    }

    /**
     * Get the BouncyCastle Java Crypto Extensions provider, or throw an exception if it is unavailable.
     */