Package net.i2p.crypto.eddsa.math

Class Curve

java.lang.Object

net.i2p.crypto.eddsa.math.Curve

All Implemented Interfaces:

Serializable

public class Curve
extends Object
implements Serializable

A twisted Edwards curve. Points on the curve satisfy $-x^2 + y^2 = 1 + d x^2y^2$

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
private final FieldElement	d
private final FieldElement	d2
private final Field	f
private final FieldElement	I
private static final long	serialVersionUID
private final GroupElement	zeroP2
private final GroupElement	zeroP3
private final GroupElement	zeroP3PrecomputedDouble
private final GroupElement	zeroPrecomp

Constructor Summary

Constructors

Constructor	Description
Curve(Field f, byte[] d, FieldElement I)

Method Summary

Modifier and Type	Method	Description
GroupElement	createPoint(byte[] P, boolean precompute)
boolean	equals(Object o)
FieldElement	get2D()
FieldElement	getD()
Field	getField()
FieldElement	getI()
GroupElement	getZero(GroupElement.Representation repr)
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Details

serialVersionUID

private static final long serialVersionUID

See Also:

• Constant Field Values

f

private final Field f

d

private final FieldElement d

d2

private final FieldElement d2

I

private final FieldElement I

zeroP2

private final GroupElement zeroP2

zeroP3

private final GroupElement zeroP3

zeroP3PrecomputedDouble

private final GroupElement zeroP3PrecomputedDouble

zeroPrecomp

private final GroupElement zeroPrecomp

Constructor Details

Curve

public Curve(Field f,
 byte[] d,
 FieldElement I)

Method Details

getField

public Field getField()

getD

public FieldElement getD()

get2D

public FieldElement get2D()

getI

public FieldElement getI()

getZero

public GroupElement getZero(GroupElement.Representation repr)

createPoint

public GroupElement createPoint(byte[] P,
 boolean precompute)

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object o)

Overrides:

equals in class Object