Class ECPublicKeySpec

java.lang.Object

java.security.spec.ECPublicKeySpec

All Implemented Interfaces:: KeySpec

public class ECPublicKeySpec extends Object implements KeySpec

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

Since:

1.5

See Also:

Constructor Summary

Constructor	Description
`ECPublicKeySpec(ECPoint w, ECParameterSpec params)`	Creates a new ECPublicKeySpec with the specified parameter values.

Method Summary

Modifier and Type	Method	Description
`ECParameterSpec`	`getParams()`	Returns the associated elliptic curve domain parameters.
`ECPoint`	`getW()`	Returns the public point W.

Methods declared in class Object

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

Constructor Details

ECPublicKeySpec

public ECPublicKeySpec(ECPoint w, ECParameterSpec params)

Creates a new ECPublicKeySpec with the specified parameter values.

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

Method Details

getW

public ECPoint getW()

Returns the public point W.

Returns:: the public point W.

getParams

public ECParameterSpec getParams()

Returns the associated elliptic curve domain parameters.

Returns:: the EC domain parameters.

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https://docs.oracle.com/en/java/javase/25/docs/api/java.base/java/security/spec/ECPublicKeySpec.html