Package org.bouncycastle.jce.spec

Class ECParameterSpec

  • All Implemented Interfaces:
    java.security.spec.AlgorithmParameterSpec
    Direct Known Subclasses:
    ECNamedCurveParameterSpec
    public class ECParameterSpec
extends java.lang.Object
implements java.security.spec.AlgorithmParameterSpec
    basic domain parameters for an Elliptic Curve public or private key.

    • Method Summary

      All Methods Instance Methods Concrete Methods 
      Modifier and Type Method Description
      boolean equals​(java.lang.Object o)  
      ECCurve getCurve()
      return the curve along which the base point lies.
      ECPoint getG()
      return the base point we are using for these domain parameters.
      java.math.BigInteger getH()
      return the cofactor H to the order of G.
      java.math.BigInteger getN()
      return the order N of G
      byte[] getSeed()
      return the seed used to generate this curve (if available).
      int hashCode()  

      • Methods inherited from class java.lang.Object

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

    • Constructor Detail

      • ECParameterSpec

        public ECParameterSpec​(ECCurve curve,
                       ECPoint G,
                       java.math.BigInteger n)

      • ECParameterSpec

        public ECParameterSpec​(ECCurve curve,
                       ECPoint G,
                       java.math.BigInteger n,
                       java.math.BigInteger h)

      • ECParameterSpec

        public ECParameterSpec​(ECCurve curve,
                       ECPoint G,
                       java.math.BigInteger n,
                       java.math.BigInteger h,
                       byte[] seed)

    • Method Detail

      • getCurve

        public ECCurve getCurve()
        return the curve along which the base point lies.
        Returns:
        the curve

      • getG

        public ECPoint getG()
        return the base point we are using for these domain parameters.
        Returns:
        the base point.

      • getN

        public java.math.BigInteger getN()
        return the order N of G
        Returns:
        the order

      • getH

        public java.math.BigInteger getH()
        return the cofactor H to the order of G.
        Returns:
        the cofactor

      • getSeed

        public byte[] getSeed()
        return the seed used to generate this curve (if available).
        Returns:
        the random seed

      • equals

        public boolean equals​(java.lang.Object o)
        Overrides:
        equals in class java.lang.Object

      • hashCode

        public int hashCode()
        Overrides:
        hashCode in class java.lang.Object