org.cryptimeleon.craco.sig.sps.groth15

Class SPSGroth15PublicParameters

java.lang.Object

org.cryptimeleon.craco.sig.sps.groth15.SPSGroth15PublicParameters

All Implemented Interfaces:

PublicParameters, org.cryptimeleon.math.serialization.Representable, org.cryptimeleon.math.serialization.StandaloneRepresentable

public class SPSGroth15PublicParameters
extends java.lang.Object
implements PublicParameters

Class for the public parameters of the simplified Groth15 SPS signature scheme. Bilinear group type 3

Field Summary

Fields

Modifier and Type	Field and Description
protected org.cryptimeleon.math.structures.groups.GroupElement	group1ElementG g (g_1) \in G_1 in paper.
protected org.cryptimeleon.math.structures.groups.GroupElement	group2ElementHatG g_2 (\hat(g)) \in G_2 in paper.
protected org.cryptimeleon.math.structures.groups.cartesian.GroupElementVector	groupElementsYi \{Y}_1, ..., {Y}_l \in the same group as the plaintext in the paper.
protected SPSGroth15PublicParametersGen.Groth15Type	type

Constructor Summary

Constructors

Constructor and Description
SPSGroth15PublicParameters(org.cryptimeleon.math.structures.groups.elliptic.BilinearGroup bilinearGroup, SPSGroth15PublicParametersGen.Groth15Type type, int numberOfMessages)
SPSGroth15PublicParameters(org.cryptimeleon.math.serialization.Representation repr)

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other)
org.cryptimeleon.math.structures.groups.elliptic.BilinearMap	getBilinearMap()
org.cryptimeleon.math.structures.groups.cartesian.GroupElementVector	getGroupElementsYi()
int	getNumberOfMessages()
org.cryptimeleon.math.structures.groups.GroupElement	getOtherGroupGenerator()
org.cryptimeleon.math.structures.groups.GroupElement	getPlaintextGroupGenerator()
org.cryptimeleon.math.serialization.Representation	getRepresentation()
org.cryptimeleon.math.structures.rings.zn.Zp	getZp() Returns the group Zp (where p is the group order of G1, G2, and GT)
int	hashCode()

Methods inherited from class java.lang.Object

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

Field Detail

type

protected SPSGroth15PublicParametersGen.Groth15Type type

group1ElementG

protected org.cryptimeleon.math.structures.groups.GroupElement group1ElementG

g (g_1) \in G_1 in paper.

group2ElementHatG

protected org.cryptimeleon.math.structures.groups.GroupElement group2ElementHatG

g_2 (\hat(g)) \in G_2 in paper.

groupElementsYi

protected org.cryptimeleon.math.structures.groups.cartesian.GroupElementVector groupElementsYi

\{Y}_1, ..., {Y}_l \in the same group as the plaintext in the paper.

Constructor Detail

SPSGroth15PublicParameters

public SPSGroth15PublicParameters(org.cryptimeleon.math.structures.groups.elliptic.BilinearGroup bilinearGroup,
                                  SPSGroth15PublicParametersGen.Groth15Type type,
                                  int numberOfMessages)

SPSGroth15PublicParameters

public SPSGroth15PublicParameters(org.cryptimeleon.math.serialization.Representation repr)

Method Detail

getRepresentation

public org.cryptimeleon.math.serialization.Representation getRepresentation()

Specified by:

getRepresentation in interface org.cryptimeleon.math.serialization.Representable

getZp

public org.cryptimeleon.math.structures.rings.zn.Zp getZp()

Returns the group Zp (where p is the group order of G1, G2, and GT)

getBilinearMap

public org.cryptimeleon.math.structures.groups.elliptic.BilinearMap getBilinearMap()

getGroupElementsYi

public org.cryptimeleon.math.structures.groups.cartesian.GroupElementVector getGroupElementsYi()

getPlaintextGroupGenerator

public org.cryptimeleon.math.structures.groups.GroupElement getPlaintextGroupGenerator()

getOtherGroupGenerator

public org.cryptimeleon.math.structures.groups.GroupElement getOtherGroupGenerator()

getNumberOfMessages

public int getNumberOfMessages()

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object other)

Overrides:

equals in class java.lang.Object