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