de.flexiprovider.pqc.ecc.mceliece
Class McElieceCCA2PrivateKeySpec

java.lang.Object
  |
  +--de.flexiprovider.pqc.ecc.mceliece.McElieceCCA2PrivateKeySpec

All Implemented Interfaces:

KeySpec, java.security.spec.KeySpec

public class McElieceCCA2PrivateKeySpec

extends java.lang.Object

implements KeySpec

This class provides a specification for a McEliece CCA2 private key.

Author:

Elena Klintsevich, Martin Döring

See Also:

McElieceCCA2PrivateKey

Constructor Summary

protected	McElieceCCA2PrivateKeySpec(int n, int k, byte[] encFieldPoly, byte[] encGoppaPoly, byte[] encP, byte[] encH, byte[][] encQInv) Constructor used by the McElieceKeyFactory.
	McElieceCCA2PrivateKeySpec(int n, int k, GF2mField field, PolynomialGF2mSmallM gp, Permutation p, GF2Matrix h, PolynomialGF2mSmallM[] qInv) Constructor.

Method Summary

GF2mField	getField()
PolynomialGF2mSmallM	getGoppaPoly()
GF2Matrix	getH()
int	getK()
int	getN()
Permutation	getP()
PolynomialGF2mSmallM[]	getQInv()

Methods inherited from class java.lang.Object

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

Constructor Detail

McElieceCCA2PrivateKeySpec

public McElieceCCA2PrivateKeySpec(int n,
                                  int k,
                                  GF2mField field,
                                  PolynomialGF2mSmallM gp,
                                  Permutation p,
                                  GF2Matrix h,
                                  PolynomialGF2mSmallM[] qInv)

Constructor.

Parameters:

n - the length of the code

k - the dimension of the code

field - the finite field GF(2^m)

gp - the irreducible Goppa polynomial

p - the permutation

h - the canonical check matrix

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

McElieceCCA2PrivateKeySpec

protected McElieceCCA2PrivateKeySpec(int n,
                                     int k,
                                     byte[] encFieldPoly,
                                     byte[] encGoppaPoly,
                                     byte[] encP,
                                     byte[] encH,
                                     byte[][] encQInv)

Constructor used by the McElieceKeyFactory.

Parameters:

n - the length of the code

k - the dimension of the code

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

encGoppaPoly - the encoded irreducible Goppa polynomial

encP - the encoded permutation

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

getGoppaPoly

public PolynomialGF2mSmallM getGoppaPoly()

Returns:

the irreducible Goppa polynomial

getP

public Permutation getP()

Returns:

the permutation P

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