ECPrivateKeySpec (Java SE 9 & JDK 9 )

java.lang.Object
- java.security.spec.ECPrivateKeySpec

All Implemented Interfaces:

KeySpec
```
public class ECPrivateKeySpec
extends Object
implements KeySpec
```
This immutable class specifies an elliptic curve private key with its associated parameters.

Since:

1.5

See Also:

KeySpec, ECParameterSpec

Constructor Summary

Constructors
Constructor Description

ECPrivateKeySpec(BigInteger s, ECParameterSpec params)
Creates a new ECPrivateKeySpec 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.
`BigInteger`	`getS()`	Returns the private value S.

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

- Constructor Detail
  - ECPrivateKeySpec
```
public ECPrivateKeySpec(BigInteger s,
                        ECParameterSpec params)
```
    Creates a new ECPrivateKeySpec with the specified parameter values.
    
    Parameters:
    
    s - the private value.
    
    params - the associated elliptic curve domain parameters.
    
    Throws:
    
    NullPointerException - if s or params is null.
- Method Detail
  - getS
```
public BigInteger getS()
```
    Returns the private value S.
    
    Returns:
    
    the private value S.
  - getParams
```
public ECParameterSpec getParams()
```
    Returns the associated elliptic curve domain parameters.
    
    Returns:
    
    the EC domain parameters.