org.cryptimeleon.math.structures.groups.lazy

Class HomomorphismResultLazyGroupElement

java.lang.Object

org.cryptimeleon.math.structures.groups.lazy.LazyGroupElement

org.cryptimeleon.math.structures.groups.lazy.HomomorphismResultLazyGroupElement

All Implemented Interfaces:

UniqueByteRepresentable, Representable, Element, GroupElement

public class HomomorphismResultLazyGroupElement
extends LazyGroupElement

Represents the result of applying a group homomorphism to some group element.

Nested Class Summary

Nested classes/interfaces inherited from class org.cryptimeleon.math.structures.groups.lazy.LazyGroupElement

LazyGroupElement.ComputationState

Field Summary

Fields

Modifier and Type	Field and Description
protected LazyGroupHomomorphism	homomorphism
protected LazyGroupElement	preimage

Fields inherited from class org.cryptimeleon.math.structures.groups.lazy.LazyGroupElement

group

Constructor Summary

Constructors

Constructor and Description
HomomorphismResultLazyGroupElement(LazyGroupElement preimage, LazyGroupHomomorphism homomorphism)

Method Summary

Modifier and Type	Method and Description
protected void	computeConcreteValue() Computes the concrete value of the expression.

Methods inherited from class org.cryptimeleon.math.structures.groups.lazy.LazyGroupElement

accumulateMultiexp, compute, computeSync, equals, getConcreteValue, getPrecomputedSmallExponents, getRepresentation, getStructure, hashCode, inv, isComputed, isDefinitelySupposedToGetConcreteValue, isNeutralElement, op, pow, precomputePow, precomputePow, setConcreteValue, square, toString, updateAccumulator

Methods inherited from class java.lang.Object

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

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

expr, op, op, pow, pow, pow, pow, pow, pow

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

getUniqueByteRepresentation

Field Detail

preimage

protected LazyGroupElement preimage

homomorphism

protected LazyGroupHomomorphism homomorphism

Constructor Detail

HomomorphismResultLazyGroupElement

public HomomorphismResultLazyGroupElement(LazyGroupElement preimage,
                                          LazyGroupHomomorphism homomorphism)

Method Detail

computeConcreteValue

protected void computeConcreteValue()

Description copied from class: LazyGroupElement

Computes the concrete value of the expression. Goal is to call setConcreteValue(). Implementations should call getConcreteValue() on dependent LazyGroupElements if needed. May be called multiple times (in several threads), but generally, best effort is applied to only call once. So if the value this computes is not constant (e.g., is random), you should apply synchronization here and make sure you're always returning a consistent value here.

Specified by:

computeConcreteValue in class LazyGroupElement