Module java.base

Class XECPublicKeySpec

  • All Implemented Interfaces:

    public class XECPublicKeySpec
    extends Object
    implements KeySpec
    A class representing elliptic curve public keys as defined in RFC 7748, including the curve and other algorithm parameters. The public key is a particular point on the curve, which is represented using only its u-coordinate. A u-coordinate is an element of the field of integers modulo some value that is determined by the algorithm parameters. This field element is represented by a BigInteger which may hold any value. That is, the BigInteger is not restricted to the range of canonical field elements.
    • Constructor Detail

      • XECPublicKeySpec

        public XECPublicKeySpec​(AlgorithmParameterSpec params,
                                BigInteger u)
        Construct a public key spec using the supplied parameters and u coordinate.
        params - the algorithm parameters
        u - the u-coordinate of the point, represented using a BigInteger which may hold any value
        NullPointerException - if params or u is null.
    • Method Detail

      • getParams

        public AlgorithmParameterSpec getParams()
        Get the algorithm parameters that define the curve and other settings.
        the parameters
      • getU

        public BigInteger getU()
        Get the u coordinate of the point.
        the u-coordinate, represented using a BigInteger which may hold any value