Class Curve25519Point
- java.lang.Object
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- org.bouncycastle.math.ec.ECPoint
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- org.bouncycastle.math.ec.ECPoint.AbstractFp
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- org.bouncycastle.math.ec.custom.djb.Curve25519Point
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public class Curve25519Point extends ECPoint.AbstractFp
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Nested Class Summary
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Nested classes/interfaces inherited from class org.bouncycastle.math.ec.ECPoint
ECPoint.AbstractF2m, ECPoint.AbstractFp, ECPoint.F2m, ECPoint.Fp
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Field Summary
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Fields inherited from class org.bouncycastle.math.ec.ECPoint
curve, EMPTY_ZS, preCompTable, withCompression, x, y, zs
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Constructor Summary
Constructors Constructor Description Curve25519Point(ECCurve curve, ECFieldElement x, ECFieldElement y)
Deprecated.Use ECCurve.createPoint to construct pointsCurve25519Point(ECCurve curve, ECFieldElement x, ECFieldElement y, boolean withCompression)
Deprecated.per-point compression property will be removed, referECPoint.getEncoded(boolean)
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description ECPoint
add(ECPoint b)
protected Curve25519FieldElement
calculateJacobianModifiedW(Curve25519FieldElement Z, int[] ZSquared)
protected ECPoint
detach()
protected Curve25519FieldElement
getJacobianModifiedW()
ECFieldElement
getZCoord(int index)
ECPoint
negate()
ECPoint
threeTimes()
ECPoint
twice()
protected Curve25519Point
twiceJacobianModified(boolean calculateW)
ECPoint
twicePlus(ECPoint b)
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Methods inherited from class org.bouncycastle.math.ec.ECPoint.AbstractFp
getCompressionYTilde, satisfiesCurveEquation, subtract
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Methods inherited from class org.bouncycastle.math.ec.ECPoint
checkNormalized, createScaledPoint, equals, equals, getAffineXCoord, getAffineYCoord, getCurve, getCurveCoordinateSystem, getDetachedPoint, getEncoded, getEncoded, getInitialZCoords, getRawXCoord, getRawYCoord, getRawZCoords, getXCoord, getYCoord, getZCoords, hashCode, isCompressed, isInfinity, isNormalized, isValid, multiply, normalize, satisfiesOrder, scaleX, scaleY, timesPow2, toString
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Constructor Detail
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Curve25519Point
public Curve25519Point(ECCurve curve, ECFieldElement x, ECFieldElement y)
Deprecated.Use ECCurve.createPoint to construct pointsCreate a point which encodes with point compression.- Parameters:
curve
- the curve to usex
- affine x co-ordinatey
- affine y co-ordinate
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Curve25519Point
public Curve25519Point(ECCurve curve, ECFieldElement x, ECFieldElement y, boolean withCompression)
Deprecated.per-point compression property will be removed, referECPoint.getEncoded(boolean)
Create a point that encodes with or without point compresion.- Parameters:
curve
- the curve to usex
- affine x co-ordinatey
- affine y co-ordinatewithCompression
- if true encode with point compression
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Method Detail
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getZCoord
public ECFieldElement getZCoord(int index)
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threeTimes
public ECPoint threeTimes()
- Overrides:
threeTimes
in classECPoint
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calculateJacobianModifiedW
protected Curve25519FieldElement calculateJacobianModifiedW(Curve25519FieldElement Z, int[] ZSquared)
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getJacobianModifiedW
protected Curve25519FieldElement getJacobianModifiedW()
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twiceJacobianModified
protected Curve25519Point twiceJacobianModified(boolean calculateW)
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