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Spongy Castle is a package-rename (org.bouncycastle.* to org.spongycastle.*) of Bouncy Castle intended for the Android platform. Android unfortunately ships with a stripped-down version of Bouncy Castle, which prevents easy upgrades - Spongy Castle overcomes this and provides a full, up-to-date version of the Bouncy Castle cryptographic libs.

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package org.spongycastle.jce.spec;

import java.math.BigInteger;

/**
 * This class specifies an ElGamal private key with its associated parameters.
 *
 * @see ElGamalPublicKeySpec
 */
public class ElGamalPrivateKeySpec
    extends ElGamalKeySpec
{
    private BigInteger  x;

    public ElGamalPrivateKeySpec(
        BigInteger              x,
        ElGamalParameterSpec    spec)
    {
        super(spec);

        this.x = x;
    }

    /**
     * Returns the private value x.
     *
     * @return the private value x
     */
    public BigInteger getX()
    {
        return x;
    }
}