org.bouncycastle.pqc.jcajce.provider.util.SpecUtil Maven / Gradle / Ivy

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The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for Java 1.8 and later with debug enabled.

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package org.bouncycastle.pqc.jcajce.provider.util;

import java.lang.reflect.Method;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.security.spec.AlgorithmParameterSpec;

public class SpecUtil
{
    private static Class[] NO_PARAMS = new Class[0];
    private static Object[] NO_ARGS = new Object[0];

    public static String getNameFrom(final AlgorithmParameterSpec paramSpec)
    {
        return (String)AccessController.doPrivileged(new PrivilegedAction()
        {
            public Object run()
            {
                try
                {
                    Method m = paramSpec.getClass().getMethod("getName", NO_PARAMS);

                    return m.invoke(paramSpec, NO_ARGS);
                }
                catch (Exception e)
                {
                    // ignore - maybe log?
                }

                return null;
            }
        });
    }
}