org.cryptimeleon.math.structures.groups

Class RingGroupImpl

java.lang.Object

org.cryptimeleon.math.structures.groups.RingGroupImpl

All Implemented Interfaces:

RepresentationRestorer, Representable, StandaloneRepresentable, GroupImpl

Direct Known Subclasses:

RingAdditiveGroupImpl, RingUnitGroupImpl

public abstract class RingGroupImpl
extends java.lang.Object
implements GroupImpl

Common base class for ring subgroups (additive/unit groups).

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	RingGroupImpl.RingGroupElementImpl Common base class of ring subgroup elements

Field Summary

Fields

Modifier and Type	Field and Description
protected Ring	ring

Constructor Summary

Constructors

Constructor and Description
RingGroupImpl(Representation repr)
RingGroupImpl(Ring ring) Construct a ring group from a given ring.

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object obj)
abstract RingGroupImpl.RingGroupElementImpl	getElement(RingElement ringElement) Creates an element of this group from the given ring element.
Representation	getRepresentation() The representation of this object.
Ring	getRing() Retrieves the base ring.
int	hashCode()
java.lang.String	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

estimateCostInvPerOp, exp, getGenerator, getNeutralElement, getUniformlyRandomElement, getUniformlyRandomNonNeutral, getUniqueByteLength, hasPrimeSize, implementsOwnExp, implementsOwnMultiExp, isCommutative, multiexp, restoreElement, restoreFromRepresentation, size

Field Detail

ring

protected final Ring ring

Constructor Detail

RingGroupImpl

public RingGroupImpl(Ring ring)

Construct a ring group from a given ring.

Parameters:

ring - the ring to wrap

RingGroupImpl

public RingGroupImpl(Representation repr)

Method Detail

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

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

getRing

public Ring getRing()

Retrieves the base ring.

getElement

public abstract RingGroupImpl.RingGroupElementImpl getElement(RingElement ringElement)

Creates an element of this group from the given ring element.

Parameters:

ringElement - the ring element to convert

Returns:

the given ring element as an element of this group

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object