org.spongycastle.math.ec.custom.gm

Class SM2P256V1Point

java.lang.Object

org.spongycastle.math.ec.ECPoint

org.spongycastle.math.ec.ECPoint.AbstractFp

org.spongycastle.math.ec.custom.gm.SM2P256V1Point

public class SM2P256V1Point
extends ECPoint.AbstractFp

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

Constructor and Description
SM2P256V1Point(ECCurve curve, ECFieldElement x, ECFieldElement y) Deprecated. Use ECCurve.createPoint to construct points
SM2P256V1Point(ECCurve curve, ECFieldElement x, ECFieldElement y, boolean withCompression) Deprecated. per-point compression property will be removed, refer ECPoint.getEncoded(boolean)

Method Summary

Modifier and Type	Method and Description
ECPoint	add(ECPoint b)
protected ECPoint	detach()
ECPoint	negate()
ECPoint	threeTimes()
ECPoint	twice()
ECPoint	twicePlus(ECPoint b)

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

getCompressionYTilde, satisfiesCurveEquation, subtract

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

checkNormalized, createScaledPoint, 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, normalize, satisfiesCofactor, scaleX, scaleY, timesPow2, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

SM2P256V1Point

public SM2P256V1Point(ECCurve curve,
                      ECFieldElement x,
                      ECFieldElement y)

Deprecated. Use ECCurve.createPoint to construct points

Create a point which encodes with point compression.

Parameters:

curve - the curve to use

x - affine x co-ordinate

y - affine y co-ordinate

SM2P256V1Point

public SM2P256V1Point(ECCurve curve,
                      ECFieldElement x,
                      ECFieldElement y,
                      boolean withCompression)

Deprecated. per-point compression property will be removed, refer ECPoint.getEncoded(boolean)

Create a point that encodes with or without point compresion.

Parameters:

curve - the curve to use

x - affine x co-ordinate

y - affine y co-ordinate

withCompression - if true encode with point compression

Method Detail

detach

protected ECPoint detach()

Specified by:

detach in class ECPoint

add

public ECPoint add(ECPoint b)

Specified by:

add in class ECPoint

twice

public ECPoint twice()

Specified by:

twice in class ECPoint

twicePlus

public ECPoint twicePlus(ECPoint b)

Overrides:

twicePlus in class ECPoint

threeTimes

public ECPoint threeTimes()

Overrides:

threeTimes in class ECPoint

negate

public ECPoint negate()

Specified by:

negate in class ECPoint