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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.crypto.params;

import org.spongycastle.crypto.CipherParameters;

public class ParametersWithIV
    implements CipherParameters
{
    private byte[]              iv;
    private CipherParameters    parameters;

    public ParametersWithIV(
        CipherParameters    parameters,
        byte[]              iv)
    {
        this(parameters, iv, 0, iv.length);
    }

    public ParametersWithIV(
        CipherParameters    parameters,
        byte[]              iv,
        int                 ivOff,
        int                 ivLen)
    {
        this.iv = new byte[ivLen];
        this.parameters = parameters;

        System.arraycopy(iv, ivOff, this.iv, 0, ivLen);
    }

    public byte[] getIV()
    {
        return iv;
    }

    public CipherParameters getParameters()
    {
        return parameters;
    }
}