ECPublicKeySpec (Java SE 9 & JDK 9 )

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:

KeySpec, ECPoint, ECParameterSpec

Constructor Summary

Constructors
Constructor Description

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

Method Summary

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

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - 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 Detail
  - 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.