public class ECPublicKeySpec
extends Object implements KeySpec



This immutable class specifies an elliptic curve public key with its associated parameters.

Summary

Public constructors

ECPublicKeySpec(ECPoint w, ECParameterSpec params)

Creates a new ECPublicKeySpec with the specified parameter values.

Public methods

ECParameterSpec getParams()

Returns the associated elliptic curve domain parameters.

ECPoint getW()

Returns the public point W.

Inherited methods

From class java.lang.Object

Object clone()

Creates and returns a copy of this object.

boolean equals(Object obj)

Indicates whether some other object is "equal to" this one.

void finalize()

Called by the garbage collector on an object when garbage collection determines that there are no more references to the object.

final Class<?> getClass()

Returns the runtime class of this Object.

int hashCode()

Returns a hash code value for the 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(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.

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()

Causes the current thread to wait until it is awakened, typically by being notified or interrupted.

Public constructors

ECPublicKeySpec

public ECPublicKeySpec (ECPoint w, 
                ECParameterSpec params)

Creates a new ECPublicKeySpec with the specified parameter values.

Parameters
w ECPoint: the public point.
params ECParameterSpec: the associated elliptic curve domain parameters.
Throws
IllegalArgumentException if w is point at infinity, i.e. ECPoint.POINT_INFINITY
NullPointerException if w or params is null.

Public methods

getParams

public ECParameterSpec getParams ()

Returns the associated elliptic curve domain parameters.

Returns
ECParameterSpec the EC domain parameters.

getW

public ECPoint getW ()

Returns the public point W.

Returns
ECPoint the public point W.

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Last updated 2026-02-13 UTC.