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Spongy Castle is a package-rename (org.bouncycastle.* to org.spongycastle.*) of Bouncy Castle intended for Android. Android ships with a stripped-down version of Bouncy Castle - this causes classloader collisions if you try to add an alternative (updated/complete) Bouncy Castle jar. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5.

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package org.spongycastle.jce.spec;

import java.security.spec.KeySpec;

/**
 * base class for an Elliptic Curve Key Spec
 */
public class ECKeySpec
    implements KeySpec
{
    private ECParameterSpec     spec;

    protected ECKeySpec(
        ECParameterSpec spec)
    {
        this.spec = spec;
    }

    /**
     * return the domain parameters for the curve
     */
    public ECParameterSpec getParams()
    {
        return spec;
    }
}