org.spongycastle.pqc.crypto.mceliece

Class McEliecePrivateKeyParameters

java.lang.Object

org.spongycastle.crypto.params.AsymmetricKeyParameter

org.spongycastle.pqc.crypto.mceliece.McElieceKeyParameters

org.spongycastle.pqc.crypto.mceliece.McEliecePrivateKeyParameters

All Implemented Interfaces:

CipherParameters

public class McEliecePrivateKeyParameters
extends McElieceKeyParameters

Constructor Summary

Constructors

Constructor and Description
McEliecePrivateKeyParameters(int n, int k, byte[] encField, byte[] encGoppaPoly, byte[] encSInv, byte[] encP1, byte[] encP2, byte[] encH, byte[][] encQInv) Constructor.
McEliecePrivateKeyParameters(int n, int k, GF2mField field, PolynomialGF2mSmallM gp, Permutation p1, Permutation p2, GF2Matrix sInv) Constructor.

Method Summary

Modifier and Type	Method and Description
GF2mField	getField()
PolynomialGF2mSmallM	getGoppaPoly()
GF2Matrix	getH()
int	getK()
int	getN()
Permutation	getP1()
Permutation	getP2()
PolynomialGF2mSmallM[]	getQInv()
GF2Matrix	getSInv()

Methods inherited from class org.spongycastle.pqc.crypto.mceliece.McElieceKeyParameters

getParameters

Methods inherited from class org.spongycastle.crypto.params.AsymmetricKeyParameter

isPrivate

Methods inherited from class java.lang.Object

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

Constructor Detail

McEliecePrivateKeyParameters

public McEliecePrivateKeyParameters(int n,
                                    int k,
                                    GF2mField field,
                                    PolynomialGF2mSmallM gp,
                                    Permutation p1,
                                    Permutation p2,
                                    GF2Matrix sInv)

Constructor.

Parameters:

n - the length of the code

k - the dimension of the code

field - the field polynomial defining the finite field GF(2^m)

gp - the irreducible Goppa polynomial

p1 - the permutation used to generate the systematic check matrix

p2 - the permutation used to compute the public generator matrix

sInv - the matrix S^-1

McEliecePrivateKeyParameters

public McEliecePrivateKeyParameters(int n,
                                    int k,
                                    byte[] encField,
                                    byte[] encGoppaPoly,
                                    byte[] encSInv,
                                    byte[] encP1,
                                    byte[] encP2,
                                    byte[] encH,
                                    byte[][] encQInv)

Constructor.

Parameters:

n - the length of the code

k - the dimension of the code

encField - the encoded field polynomial defining the finite field GF(2^m)

encGoppaPoly - the encoded irreducible Goppa polynomial

encSInv - the encoded matrix S^-1

encP1 - the encoded permutation used to generate the systematic check matrix

encP2 - the encoded permutation used to compute the public generator matrix

encH - the encoded canonical check matrix

encQInv - the encoded matrix used to compute square roots in (GF(2^m))^t

Method Detail

getN

public int getN()

Returns:

the length of the code

getK

public int getK()

Returns:

the dimension of the code

getField

public GF2mField getField()

Returns:

the finite field GF(2^m)

getGoppaPoly

public PolynomialGF2mSmallM getGoppaPoly()

Returns:

the irreducible Goppa polynomial

getSInv

public GF2Matrix getSInv()

Returns:

the k x k random binary non-singular matrix S^-1

getP1

public Permutation getP1()

Returns:

the permutation used to generate the systematic check matrix

getP2

public Permutation getP2()

Returns:

the permutation used to compute the public generator matrix

getH

public GF2Matrix getH()

Returns:

the canonical check matrix H

getQInv

public PolynomialGF2mSmallM[] getQInv()

Returns:

the matrix used to compute square roots in (GF(2^m))^t