org.spongycastle.pqc.jcajce.spec

Class McElieceCCA2PrivateKeySpec

java.lang.Object

org.spongycastle.pqc.jcajce.spec.McElieceCCA2PrivateKeySpec

All Implemented Interfaces:

java.security.spec.KeySpec

public class McElieceCCA2PrivateKeySpec
extends java.lang.Object
implements java.security.spec.KeySpec

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

See Also:

JDKMcElieceCCA2PrivateKey

Constructor Summary

Constructors

Constructor and Description
McElieceCCA2PrivateKeySpec(java.lang.String oid, int n, int k, byte[] encFieldPoly, byte[] encGoppaPoly, byte[] encP, byte[] encH, byte[][] encQInv) Constructor used by the McElieceKeyFactory.
McElieceCCA2PrivateKeySpec(java.lang.String oid, int n, int k, org.spongycastle.pqc.math.linearalgebra.GF2mField field, org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM gp, org.spongycastle.pqc.math.linearalgebra.Permutation p, org.spongycastle.pqc.math.linearalgebra.GF2Matrix h, org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM[] qInv) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
org.spongycastle.pqc.math.linearalgebra.GF2mField	getField()
org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM	getGoppaPoly()
org.spongycastle.pqc.math.linearalgebra.GF2Matrix	getH()
int	getK()
int	getN()
java.lang.String	getOIDString()
org.spongycastle.pqc.math.linearalgebra.Permutation	getP()
org.spongycastle.pqc.math.linearalgebra.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(java.lang.String oid,
                          int n,
                          int k,
                          org.spongycastle.pqc.math.linearalgebra.GF2mField field,
                          org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM gp,
                          org.spongycastle.pqc.math.linearalgebra.Permutation p,
                          org.spongycastle.pqc.math.linearalgebra.GF2Matrix h,
                          org.spongycastle.pqc.math.linearalgebra.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

public McElieceCCA2PrivateKeySpec(java.lang.String oid,
                          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 org.spongycastle.pqc.math.linearalgebra.GF2mField getField()

Returns:

the finite field

getGoppaPoly

public org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM getGoppaPoly()

Returns:

the irreducible Goppa polynomial

getP

public org.spongycastle.pqc.math.linearalgebra.Permutation getP()

Returns:

the permutation P

getH

public org.spongycastle.pqc.math.linearalgebra.GF2Matrix getH()

Returns:

the canonical check matrix H

getQInv

public org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM[] getQInv()

Returns:

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

getOIDString

public java.lang.String getOIDString()