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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.jcajce.spec;


import javax.crypto.SecretKey;

/**
 * A simple object to indicate that a symmetric cipher should reuse the
 * last key provided.
 */
public class RepeatedSecretKeySpec
    implements SecretKey
{
    private String algorithm;

    public RepeatedSecretKeySpec(String algorithm)
    {
        this.algorithm = algorithm;
    }

    public String getAlgorithm()
    {
        return algorithm;
    }

    public String getFormat()
    {
        return null;
    }

    public byte[] getEncoded()
    {
        return null;
    }
}