Class McElieceCCA2KeyGenParameterSpec

  • All Implemented Interfaces:
    AlgorithmParameterSpec

    public class McElieceCCA2KeyGenParameterSpec
    extends Object
    implements AlgorithmParameterSpec
    This class provides a specification for the parameters that are used by the McEliece, McElieceCCA2, and Niederreiter key pair generators.
    • Constructor Detail

      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec()
        Constructor. Set the default parameters: extension degree.
      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec​(int keysize)
        Constructor.
        Parameters:
        keysize - the length of a Goppa code
        Throws:
        IllegalArgumentException - if keysize < 1.
      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec​(int keysize,
                                               String digest)
      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec​(int m,
                                               int t)
        Constructor.
        Parameters:
        m - degree of the finite field GF(2^m)
        t - error correction capability of the code
        Throws:
        InvalidParameterException - if m < 1 or m > 32 or t < 0 or t > n.
      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec​(int m,
                                               int t,
                                               String digest)
      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec​(int m,
                                               int t,
                                               int poly)
        Constructor.
        Parameters:
        m - degree of the finite field GF(2^m)
        t - error correction capability of the code
        poly - the field polynomial
        Throws:
        IllegalArgumentException - if m < 1 or m > 32 or t < 0 or t > n or poly is not an irreducible field polynomial.
      • McElieceCCA2KeyGenParameterSpec

        public McElieceCCA2KeyGenParameterSpec​(int m,
                                               int t,
                                               int poly,
                                               String digest)
    • Method Detail

      • getM

        public int getM()
        Returns:
        the extension degree of the finite field GF(2^m)
      • getN

        public int getN()
        Returns:
        the length of the code
      • getT

        public int getT()
        Returns:
        the error correction capability of the code
      • getFieldPoly

        public int getFieldPoly()
        Returns:
        the field polynomial
      • getDigest

        public String getDigest()
        Return CCA-2 digest.