org.spongycastle.math.ec

Class ECPoint.AbstractFp

java.lang.Object

org.spongycastle.math.ec.ECPoint

org.spongycastle.math.ec.ECPoint.AbstractFp

Direct Known Subclasses:

Curve25519Point, ECPoint.Fp, SecP128R1Point, SecP160K1Point, SecP160R1Point, SecP160R2Point, SecP192K1Point, SecP192R1Point, SecP224K1Point, SecP224R1Point, SecP256K1Point, SecP256R1Point, SecP384R1Point, SecP521R1Point, SM2P256V1Point

Enclosing class:

ECPoint

public abstract static class ECPoint.AbstractFp
extends ECPoint

Nested Class Summary

Nested classes/interfaces inherited from class org.spongycastle.math.ec.ECPoint

ECPoint.AbstractF2m, ECPoint.AbstractFp, ECPoint.F2m, ECPoint.Fp

Field Summary

Fields inherited from class org.spongycastle.math.ec.ECPoint

curve, EMPTY_ZS, preCompTable, withCompression, x, y, zs

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractFp(ECCurve curve, ECFieldElement x, ECFieldElement y)
protected	AbstractFp(ECCurve curve, ECFieldElement x, ECFieldElement y, ECFieldElement[] zs)

Method Summary

Modifier and Type	Method and Description
protected boolean	getCompressionYTilde()
protected boolean	satisfiesCurveEquation()
ECPoint	subtract(ECPoint b)

Methods inherited from class org.spongycastle.math.ec.ECPoint

add, checkNormalized, createScaledPoint, detach, equals, equals, getAffineXCoord, getAffineYCoord, getCurve, getCurveCoordinateSystem, getDetachedPoint, getEncoded, getEncoded, getInitialZCoords, getRawXCoord, getRawYCoord, getRawZCoords, getX, getXCoord, getY, getYCoord, getZCoord, getZCoords, hashCode, isCompressed, isInfinity, isNormalized, isValid, multiply, negate, normalize, satisfiesCofactor, scaleX, scaleY, threeTimes, timesPow2, toString, twice, twicePlus

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

AbstractFp

protected AbstractFp(ECCurve curve,
                     ECFieldElement x,
                     ECFieldElement y)

AbstractFp

protected AbstractFp(ECCurve curve,
                     ECFieldElement x,
                     ECFieldElement y,
                     ECFieldElement[] zs)

Method Detail

getCompressionYTilde

protected boolean getCompressionYTilde()

Specified by:

getCompressionYTilde in class ECPoint

satisfiesCurveEquation

protected boolean satisfiesCurveEquation()

Specified by:

satisfiesCurveEquation in class ECPoint

subtract

public ECPoint subtract(ECPoint b)

Specified by:

subtract in class ECPoint