org.spongycastle.pqc.jcajce.spec

Class McEliecePrivateKeySpec

java.lang.Object

org.spongycastle.pqc.jcajce.spec.McEliecePrivateKeySpec

All Implemented Interfaces:

java.security.spec.KeySpec

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

This class provides a specification for a McEliece private key.

See Also:

org.spongycastle.pqc.ecc.JDKMcEliecePrivateKey.McEliecePrivateKey, KeySpec

Constructor Summary

Constructors

Constructor and Description
McEliecePrivateKeySpec(java.lang.String oid, int n, int k, byte[] encField, byte[] encGoppaPoly, byte[] encSInv, byte[] encP1, byte[] encP2, byte[] encH, byte[][] encQInv) Constructor (used by the McElieceKeyFactory).
McEliecePrivateKeySpec(java.lang.String oid, int n, int k, org.spongycastle.pqc.math.linearalgebra.GF2mField field, org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM goppaPoly, org.spongycastle.pqc.math.linearalgebra.GF2Matrix sInv, org.spongycastle.pqc.math.linearalgebra.Permutation p1, org.spongycastle.pqc.math.linearalgebra.Permutation p2, org.spongycastle.pqc.math.linearalgebra.GF2Matrix h, org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM[] qInv) Constructor.

Method Summary

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	getP1()
org.spongycastle.pqc.math.linearalgebra.Permutation	getP2()
org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM[]	getQInv()
org.spongycastle.pqc.math.linearalgebra.GF2Matrix	getSInv()

Methods inherited from class java.lang.Object

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

Constructor Detail

McEliecePrivateKeySpec

public McEliecePrivateKeySpec(java.lang.String oid,
                              int n,
                              int k,
                              org.spongycastle.pqc.math.linearalgebra.GF2mField field,
                              org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM goppaPoly,
                              org.spongycastle.pqc.math.linearalgebra.GF2Matrix sInv,
                              org.spongycastle.pqc.math.linearalgebra.Permutation p1,
                              org.spongycastle.pqc.math.linearalgebra.Permutation p2,
                              org.spongycastle.pqc.math.linearalgebra.GF2Matrix h,
                              org.spongycastle.pqc.math.linearalgebra.PolynomialGF2mSmallM[] qInv)

Constructor.

Parameters:

oid -

n - the length of the code

k - the dimension of the code

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

goppaPoly - the irreducible Goppa polynomial

sInv - the matrix S^-1

p1 - the permutation used to generate the systematic check matrix

p2 - the permutation used to compute the public generator matrix

h - the canonical check matrix

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

McEliecePrivateKeySpec

public McEliecePrivateKeySpec(java.lang.String oid,
                              int n,
                              int k,
                              byte[] encField,
                              byte[] encGoppaPoly,
                              byte[] encSInv,
                              byte[] encP1,
                              byte[] encP2,
                              byte[] encH,
                              byte[][] encQInv)

Constructor (used by the McElieceKeyFactory).

Parameters:

oid -

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 org.spongycastle.pqc.math.linearalgebra.GF2mField getField()

Returns:

the finite field GF(2^m)

getGoppaPoly

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

Returns:

the irreducible Goppa polynomial

getSInv

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

Returns:

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

getP1

public org.spongycastle.pqc.math.linearalgebra.Permutation getP1()

Returns:

the permutation used to generate the systematic check matrix

getP2

public org.spongycastle.pqc.math.linearalgebra.Permutation getP2()

Returns:

the permutation used to compute the public generator matrix

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()