org.cryptimeleon.math.structures.groups.debug

Class DebugGroupImplNoExpMultiExp

java.lang.Object

org.cryptimeleon.math.structures.groups.debug.DebugGroupImpl

org.cryptimeleon.math.structures.groups.debug.DebugGroupImplNoExpMultiExp

All Implemented Interfaces:

RepresentationRestorer, Representable, StandaloneRepresentable, GroupImpl

Direct Known Subclasses:

DebugGroupImplG1NoExpMultiExp, DebugGroupImplG2NoExpMultiExp, DebugGroupImplGTNoExpMultiExp

public class DebugGroupImplNoExpMultiExp
extends DebugGroupImpl

DebugGroupImpl implementation that counts operations not done inside (multi-)exponentiations and counts (multi-)exponentiations as their own unit.

Field Summary

Fields inherited from class org.cryptimeleon.math.structures.groups.debug.DebugGroupImpl

name, zn

Constructor Summary

Constructors

Constructor and Description
DebugGroupImplNoExpMultiExp(Representation repr)
DebugGroupImplNoExpMultiExp(java.lang.String name, java.math.BigInteger n)

Method Summary

Modifier and Type	Method and Description
GroupElementImpl	exp(GroupElementImpl base, java.math.BigInteger exponent, SmallExponentPrecomputation precomputation) Can be overwritten to implement a custom exponentiation algorithm for the group.
boolean	implementsOwnExp() Indicates whether this group implements its own custom exponentiation algorithm by overwriting GroupImpl.exp(org.cryptimeleon.math.structures.groups.GroupElementImpl, java.math.BigInteger, org.cryptimeleon.math.structures.groups.exp.SmallExponentPrecomputation).
boolean	implementsOwnMultiExp() Indicates whether this group implements its own multi-exponentiation algorithm by overwriting GroupImpl.multiexp(Multiexponentiation).
GroupElementImpl	multiexp(Multiexponentiation mexp) Can be overwritten to implement a custom multi-exponentiation algorithm for the group.

Methods inherited from class org.cryptimeleon.math.structures.groups.debug.DebugGroupImpl

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

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

restoreFromRepresentation

Constructor Detail

DebugGroupImplNoExpMultiExp

public DebugGroupImplNoExpMultiExp(java.lang.String name,
                                   java.math.BigInteger n)

DebugGroupImplNoExpMultiExp

public DebugGroupImplNoExpMultiExp(Representation repr)

Method Detail

exp

public GroupElementImpl exp(GroupElementImpl base,
                            java.math.BigInteger exponent,
                            SmallExponentPrecomputation precomputation)

Description copied from interface: GroupImpl

Can be overwritten to implement a custom exponentiation algorithm for the group.

Parameters:

base - the base of the exponentiation

exponent - the exponent of the exponentiation

precomputation - a set of precomputations that can be used to speed up the exponentiation

Returns:

the result of base base to the power of exponent

multiexp

public GroupElementImpl multiexp(Multiexponentiation mexp)

Description copied from interface: GroupImpl

Can be overwritten to implement a custom multi-exponentiation algorithm for the group.

Parameters:

mexp - contains the multi-exponentiation terms

Returns:

result of computing the multi-exponentiation

implementsOwnExp

public boolean implementsOwnExp()

Description copied from interface: GroupImpl

Indicates whether this group implements its own custom exponentiation algorithm by overwriting GroupImpl.exp(org.cryptimeleon.math.structures.groups.GroupElementImpl, java.math.BigInteger, org.cryptimeleon.math.structures.groups.exp.SmallExponentPrecomputation).

Returns:

true if the group overwrites GroupImpl.exp(org.cryptimeleon.math.structures.groups.GroupElementImpl, java.math.BigInteger, org.cryptimeleon.math.structures.groups.exp.SmallExponentPrecomputation), else false

implementsOwnMultiExp

public boolean implementsOwnMultiExp()

Description copied from interface: GroupImpl

Indicates whether this group implements its own multi-exponentiation algorithm by overwriting GroupImpl.multiexp(Multiexponentiation).

Returns:

true if the group implements its own multi-exponentiation algorithm, else false