org.bouncycastle.math.ec.WTauNafPreCompInfo Maven / Gradle / Ivy

Show more of this group Show more artifacts with this name
Show all versions of bcprov-jdk15on Show documentation

The Bouncy Castle Crypto package is a Java implementation of cryptographic algorithms. This jar contains JCE provider and lightweight API for the Bouncy Castle Cryptography APIs for JDK 1.5 to JDK 1.7.

There is a newer version: 1.70

Show newest version

package org.bouncycastle.math.ec;

/**
 * Class holding precomputation data for the WTNAF (Window
 * τ-adic Non-Adjacent Form) algorithm.
 */
class WTauNafPreCompInfo implements PreCompInfo
{
    /**
     * Array holding the precomputed ECPoint.F2ms used for the
     * WTNAF multiplication in 
     * {@link org.bouncycastle.math.ec.multiplier.WTauNafMultiplier.multiply()
     * WTauNafMultiplier.multiply()}.
     */
    private ECPoint.F2m[] preComp = null;

    /**
     * Constructor for WTauNafPreCompInfo
     * @param preComp Array holding the precomputed ECPoint.F2ms
     * used for the WTNAF multiplication in 
     * {@link org.bouncycastle.math.ec.multiplier.WTauNafMultiplier.multiply()
     * WTauNafMultiplier.multiply()}.
     */
    WTauNafPreCompInfo(ECPoint.F2m[] preComp)
    {
        this.preComp = preComp;
    }

    /**
     * @return the array holding the precomputed ECPoint.F2ms
     * used for the WTNAF multiplication in 
     * {@link org.bouncycastle.math.ec.multiplier.WTauNafMultiplier.multiply()
     * WTauNafMultiplier.multiply()}.
     */
    protected ECPoint.F2m[] getPreComp()
    {
        return preComp;
    }
}