org.cryptimeleon.math.structures.groups.elliptic

Class AbstractEllipticCurvePoint

java.lang.Object

org.cryptimeleon.math.structures.groups.elliptic.AbstractEllipticCurvePoint

All Implemented Interfaces:

UniqueByteRepresentable, Representable, EllipticCurvePoint, GroupElementImpl

Direct Known Subclasses:

AffineEllipticCurvePoint

public abstract class AbstractEllipticCurvePoint
extends java.lang.Object
implements EllipticCurvePoint

Constructor Summary

Constructors

Constructor and Description
AbstractEllipticCurvePoint(WeierstrassCurve curve, FieldElement x, FieldElement y, FieldElement z)
AbstractEllipticCurvePoint(WeierstrassCurve curve, Representation repr)

Method Summary

Modifier and Type	Method and Description
Field	getFieldOfDefinition() Returns the base field over which the elliptic curve this point belongs to is defined.
Representation	getRepresentation() The representation of this object.
WeierstrassCurve	getStructure() Retrieves the group this element belongs to.
FieldElement	getX()
FieldElement	getY()
FieldElement	getZ()
int	hashCode()
boolean	isNeutralElement() Returns true iff this is the neutral element of the group.
java.lang.String	toString()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.cryptimeleon.math.structures.groups.elliptic.EllipticCurvePoint

add, computeLine, isNormalized, normalize, op

Methods inherited from interface org.cryptimeleon.math.structures.groups.GroupElementImpl

inv, pow, square

Methods inherited from interface org.cryptimeleon.math.hash.UniqueByteRepresentable

getUniqueByteRepresentation, updateAccumulator

Constructor Detail

AbstractEllipticCurvePoint

public AbstractEllipticCurvePoint(WeierstrassCurve curve,
                                  FieldElement x,
                                  FieldElement y,
                                  FieldElement z)

AbstractEllipticCurvePoint

public AbstractEllipticCurvePoint(WeierstrassCurve curve,
                                  Representation repr)

Method Detail

getFieldOfDefinition

public Field getFieldOfDefinition()

Description copied from interface: EllipticCurvePoint

Returns the base field over which the elliptic curve this point belongs to is defined.

Specified by:

getFieldOfDefinition in interface EllipticCurvePoint

getX

public FieldElement getX()

getY

public FieldElement getY()

getZ

public FieldElement getZ()

getStructure

public WeierstrassCurve getStructure()

Description copied from interface: GroupElementImpl

Retrieves the group this element belongs to.

Specified by:

getStructure in interface GroupElementImpl

getRepresentation

public Representation getRepresentation()

Description copied from interface: Representable

The representation of this object. Used for serialization. A convenient way to implement this is using @link ReprUtil

Specified by:

getRepresentation in interface Representable

Returns:

a Representation or null if an equal object can be recreated without any information.

See Also:

Representation

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

isNeutralElement

public boolean isNeutralElement()

Description copied from interface: GroupElementImpl

Returns true iff this is the neutral element of the group.

Specified by:

isNeutralElement in interface GroupElementImpl