javax.crypto.spec
Class DHGenParameterSpec
java.lang.Object
|
+--javax.crypto.spec.DHGenParameterSpec
- public class DHGenParameterSpec
- extends java.lang.Object
- implements java.security.spec.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.
- See Also:
DHParameterSpec
Constructor Summary |
DHGenParameterSpec(int primeSize,
int exponentSize)
Constructs a parameter set for the generation of Diffie-Hellman
(system) parameters. |
Method Summary |
int |
getExponentSize()
Returns the size in bits of the random exponent (private value). |
int |
getPrimeSize()
Returns the size in bits of the prime modulus. |
Methods inherited from class java.lang.Object |
clone,
equals,
finalize,
getClass,
hashCode,
notify,
notifyAll,
toString,
wait,
wait,
wait |
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.
- Parameters:
primeSize
- the size (in bits) of the prime modulus.exponentSize
- the size (in bits) of the random exponent.
getPrimeSize
public int getPrimeSize()
- Returns the size in bits of the prime modulus.
- Returns:
- the size in bits of the prime modulus
getExponentSize
public int getExponentSize()
- Returns the size in bits of the random exponent (private value).
- Returns:
- the size in bits of the random exponent (private value)