org.cryptimeleon.math.structures.groups.elliptic.type1.supersingular

Class SupersingularTargetGroupImpl

java.lang.Object

org.cryptimeleon.math.structures.groups.elliptic.PairingTargetGroupImpl

org.cryptimeleon.math.structures.groups.elliptic.type1.supersingular.SupersingularTargetGroupImpl

All Implemented Interfaces:

RepresentationRestorer, Representable, StandaloneRepresentable, GroupImpl

public class SupersingularTargetGroupImpl
extends PairingTargetGroupImpl

See Also:

PairingTargetGroupImpl

Field Summary

Fields inherited from class org.cryptimeleon.math.structures.groups.elliptic.PairingTargetGroupImpl

fieldOfDefinition, size

Constructor Summary

Constructors

Constructor and Description
SupersingularTargetGroupImpl(ExtensionField f, java.math.BigInteger size)
SupersingularTargetGroupImpl(Representation r)

Method Summary

Modifier and Type	Method and Description
double	estimateCostInvPerOp() Estimates the number of inversions that can be done per group operation for the same cost.
PairingTargetGroupElementImpl	getElement(ExtensionFieldElement fe) Concrete implementations should wrap the extension field element into their subclass.
boolean	hasPrimeSize() Returns true if the size of this structure is known and prime.

Methods inherited from class org.cryptimeleon.math.structures.groups.elliptic.PairingTargetGroupImpl

equals, getCofactor, getFieldOfDefinition, getGenerator, getNeutralElement, getRepresentation, getUniformlyRandomElement, getUniqueByteLength, hashCode, init, isCommutative, restoreElement, size, toString

Methods inherited from class java.lang.Object

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

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

exp, getUniformlyRandomNonNeutral, implementsOwnExp, implementsOwnMultiExp, multiexp, restoreFromRepresentation

Constructor Detail

SupersingularTargetGroupImpl

public SupersingularTargetGroupImpl(ExtensionField f,
                                    java.math.BigInteger size)

SupersingularTargetGroupImpl

public SupersingularTargetGroupImpl(Representation r)

Method Detail

getElement

public PairingTargetGroupElementImpl getElement(ExtensionFieldElement fe)

Description copied from class: PairingTargetGroupImpl

Concrete implementations should wrap the extension field element into their subclass.

Specified by:

getElement in class PairingTargetGroupImpl

hasPrimeSize

public boolean hasPrimeSize()

Description copied from interface: GroupImpl

Returns true if the size of this structure is known and prime.

estimateCostInvPerOp

public double estimateCostInvPerOp()

Description copied from interface: GroupImpl

Estimates the number of inversions that can be done per group operation for the same cost. For example, 2 would mean that an inversion costs half as much as a group operation, on average.

Returns:

Estimated number of inversions that can be done per group operation for the same cost