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package org.bouncycastle.crypto.params;
import org.bouncycastle.crypto.CipherParameters;
import org.bouncycastle.util.Arrays;
/**
* Parameters for tweakable block ciphers.
*/
public class TweakableBlockCipherParameters
implements CipherParameters
{
private final byte[] tweak;
private final KeyParameter key;
public TweakableBlockCipherParameters(final KeyParameter key, final byte[] tweak)
{
this.key = key;
this.tweak = Arrays.clone(tweak);
}
/**
* Gets the key.
*
* @return the key to use, or <code>null</code> to use the current key.
*/
public KeyParameter getKey()
{
return key;
}
/**
* Gets the tweak value.
*
* @return the tweak to use, or <code>null</code> to use the current tweak.
*/
public byte[] getTweak()
{
return tweak;
}
}
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