/**
* Multiplies a {@link noconflict.org.bouncycastle.math.ec.ECPoint.F2m ECPoint.F2m} by <code>k
* </code> using the reduced <code>τ</code>-adic NAF (RTNAF) method.
*
* @param p The ECPoint.F2m to multiply.
* @param k The integer by which to multiply <code>k</code>.
* @return <code>p</code> multiplied by <code>k</code>.
*/
public ECPoint multiply(ECPoint point, BigInteger k, PreCompInfo preCompInfo) {
if (!(point instanceof ECPoint.F2m)) {
throw new IllegalArgumentException("Only ECPoint.F2m can be " + "used in WTauNafMultiplier");
}
ECPoint.F2m p = (ECPoint.F2m) point;
ECCurve.F2m curve = (ECCurve.F2m) p.getCurve();
int m = curve.getM();
byte a = curve.getA().toBigInteger().byteValue();
byte mu = curve.getMu();
BigInteger[] s = curve.getSi();
ZTauElement rho = Tnaf.partModReduction(k, m, a, s, mu, (byte) 10);
return multiplyWTnaf(p, rho, preCompInfo, a, mu);
}
