程序包 javax.crypto.spec

类 DHGenParameterSpec

java.lang.Object

javax.crypto.spec.DHGenParameterSpec

所有已实现的接口:

AlgorithmParameterSpec

public class DHGenParameterSpec
extends Object
implements AlgorithmParameterSpec

This class specifies the set of parameters used for generating Diffie-Hellman (system) parameters for use in Diffie-Hellman key agreement. This is typically done by a central authority.

The central authority, after computing the parameters, must send this information to the parties looking to agree on a secret key.

从以下版本开始:

1.4

另请参阅:

DHParameterSpec

构造器概要

构造器

构造器	说明
DHGenParameterSpec(int primeSize, int exponentSize)	Constructs a parameter set for the generation of Diffie-Hellman (system) parameters.

方法概要

限定符和类型	方法	说明
int	getExponentSize()	Returns the size in bits of the random exponent (private value).
int	getPrimeSize()	Returns the size in bits of the prime modulus.

从类继承的方法 java.lang.Object

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

构造器详细资料

DHGenParameterSpec

public DHGenParameterSpec(int primeSize,
                          int exponentSize)

Constructs a parameter set for the generation of Diffie-Hellman (system) parameters. The constructed parameter set can be used to initialize an AlgorithmParameterGenerator object for the generation of Diffie-Hellman parameters.

参数:

primeSize - the size (in bits) of the prime modulus.

exponentSize - the size (in bits) of the random exponent.

方法详细资料

getPrimeSize

public int getPrimeSize()

Returns the size in bits of the prime modulus.

返回:

the size in bits of the prime modulus

getExponentSize

public int getExponentSize()

Returns the size in bits of the random exponent (private value).

返回:

the size in bits of the random exponent (private value)