org.cryptimeleon.math.structures.groups

Class RingGroup

java.lang.Object

org.cryptimeleon.math.structures.groups.basic.BasicGroup

org.cryptimeleon.math.structures.groups.RingGroup

All Implemented Interfaces:

RepresentationRestorer, Representable, StandaloneRepresentable, Group, Structure

public class RingGroup
extends BasicGroup

Represents a group instantiated from either the additive or unit group of a ring.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	RingGroup.RingGroupElement

Field Summary

Fields inherited from class org.cryptimeleon.math.structures.groups.basic.BasicGroup

impl, isPrimeOrder, size, zn

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	RingGroup(GroupImpl impl)
	RingGroup(Representation repr)

Method Summary

Modifier and Type	Method and Description
static RingGroup	additiveGroupOf(Ring ring) Instantiates a RingGroup representing the additive group of the given ring.
RingGroup.RingGroupElement	getElement(RingElement elem) Constructs a RingGroupElement from the given RingElement for use in RingGroups.
static RingGroup	unitGroupOf(Ring ring) Instantiates a RingGroup representing the unit group of the given ring.

Methods inherited from class org.cryptimeleon.math.structures.groups.basic.BasicGroup

equals, getGenerator, getNeutralElement, getRepresentation, getUniformlyRandomElement, getUniformlyRandomNonNeutral, getUniqueByteLength, getZn, hashCode, hasPrimeSize, isCommutative, restoreElement, size, wrap

Methods inherited from class java.lang.Object

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

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

expr, getUniformlyRandomElements, getUniformlyRandomExponent, getUniformlyRandomExponents, getUniformlyRandomNonNeutrals, getUniformlyRandomNonzeroExponent, getUniformlyRandomNonzeroExponents, getUniformlyRandomUnitExponent, getUniformlyRandomUnitExponents, restoreFromRepresentation, restoreVector

Constructor Detail

RingGroup

protected RingGroup(GroupImpl impl)

RingGroup

public RingGroup(Representation repr)

Method Detail

additiveGroupOf

public static RingGroup additiveGroupOf(Ring ring)

Instantiates a RingGroup representing the additive group of the given ring.

Parameters:

ring - the base ring

Returns:

the additive group

unitGroupOf

public static RingGroup unitGroupOf(Ring ring)

Instantiates a RingGroup representing the unit group of the given ring.

Parameters:

ring - the base ring

Returns:

the unit group

getElement

public RingGroup.RingGroupElement getElement(RingElement elem)

Constructs a RingGroupElement from the given RingElement for use in RingGroups.

Parameters:

elem - the ring element to convert

Returns:

the corresponding RingGroupElement