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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.
package org.spongycastle.math.ec;
import java.math.BigInteger;
/**
* Class representing an element of Z[τ]. Let
* λ be an element of Z[τ]. Then
* λ is given as λ = u + vτ. The
* components u and v may be used directly, there
* are no accessor methods.
* Immutable class.
*/
class ZTauElement
{
/**
* The "real" part of λ.
*/
public final BigInteger u;
/**
* The "τ-adic" part of λ.
*/
public final BigInteger v;
/**
* Constructor for an element λ of
* Z[τ].
* @param u The "real" part of λ.
* @param v The "τ-adic" part of
* λ.
*/
public ZTauElement(BigInteger u, BigInteger v)
{
this.u = u;
this.v = v;
}
}