Module java.base

Package java.security.spec

Class ECPrivateKeySpec

java.lang.Object

java.security.spec.ECPrivateKeySpec

All Implemented Interfaces:

KeySpec

Direct Known Subclasses:

SM2PrivateKeySpec

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

Modifier and Type	Method	Description
ECParameterSpec	getParams()	Returns the associated elliptic curve domain parameters.
BigInteger	getS()	Returns the private value S.

Methods declared in 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.