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Added in API level 1

Summary: Ctors | Methods | Inherited Methods | [Expand All]

public class ECPrivateKeySpec
extends Object implements KeySpec

java.lang.Object
↳	java.security.spec.ECPrivateKeySpec

这个不可变类指定一个椭圆曲线私钥及其相关参数。

也可以看看：

Public constructors
`ECPrivateKeySpec(BigInteger s, ECParameterSpec params)` 用指定的参数值创建一个新的ECPrivateKeySpec。

Public methods
`ECParameterSpec`	`getParams()` 返回关联的椭圆曲线域参数。
`BigInteger`	`getS()` 返回私有值S.

From class java.lang.Object

Added in API level 1

ECPrivateKeySpec (BigInteger s, 
                ECParameterSpec params)

用指定的参数值创建一个新的ECPrivateKeySpec。

Parameters
`s`	`BigInteger`: the private value.
`params`	`ECParameterSpec`: the associated elliptic curve domain parameters.

Throws
`NullPointerException`	if `s` or `params` is null.

Added in API level 1

ECParameterSpec getParams ()

返回关联的椭圆曲线域参数。

Returns
`ECParameterSpec`	the EC domain parameters.

Added in API level 1

BigInteger getS ()

返回私有值S.

Returns
`BigInteger`	the private value S.