org.cryptimeleon.math.structures.groups.lazy

Class HashResultLazyGroupElement

java.lang.Object

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

org.cryptimeleon.math.structures.groups.lazy.HashResultLazyGroupElement

All Implemented Interfaces:

UniqueByteRepresentable, Representable, Element, GroupElement

public class HashResultLazyGroupElement
extends LazyGroupElement

Represents the result of hashing a byte array to some structure.

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 HashIntoLazyGroup	hash
protected byte[]	preimage

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

group

Constructor Summary

Constructors

Constructor and Description
HashResultLazyGroupElement(HashIntoLazyGroup hash, byte[] preimage)

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 byte[] preimage

hash

protected HashIntoLazyGroup hash

Constructor Detail

HashResultLazyGroupElement

public HashResultLazyGroupElement(HashIntoLazyGroup hash,
                                  byte[] preimage)

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