Class XECPublicKeySpec

java.lang.Object
java.security.spec.XECPublicKeySpec
All Implemented Interfaces:
KeySpec
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.
Since:
11

  • Constructor Summary

    Constructors
    Constructor
    Description
    XECPublicKeySpec(AlgorithmParameterSpec params, BigInteger u)
    Construct a public key spec using the supplied parameters and u coordinate.

  • Method Summary

    Modifier and Type
    Method
    Description
    AlgorithmParameterSpec
    getParams()
    Get the algorithm parameters that define the curve and other settings.
    BigInteger
    getU()
    Get the u coordinate of the point.

    Methods declared in class Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    Modifier and Type
    Method
    Description
    protected Object
    clone()
    Creates and returns a copy of this object.
    boolean
    equals(Object obj)
    Indicates whether some other object is "equal to" this one.
    protected void
    finalize()
    Deprecated, for removal: This API element is subject to removal in a future version.
    Finalization is deprecated and subject to removal in a future release.
    final Class<?>
    getClass()
    Returns the runtime class of this Object.
    int
    hashCode()
    Returns a hash code value for this object.
    final void
    notify()
    Wakes up a single thread that is waiting on this object's monitor.
    final void
    notifyAll()
    Wakes up all threads that are waiting on this object's monitor.
    String
    toString()
    Returns a string representation of the object.
    final void
    wait()
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted.
    final void
    wait(long timeoutMillis)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.
    final void
    wait(long timeoutMillis, int nanos)
    Causes the current thread to wait until it is awakened, typically by being notified or interrupted, or until a certain amount of real time has elapsed.

  • Constructor Details

    • XECPublicKeySpec

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

  • Method Details

    • getParams

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

    • getU

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