OpenJDK 27 · javax.crypto.spec.DHGenParameterSpec · APIdia, the JavaDoc alternative

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.

Field Summary

Modifier and Type	Field and Description
private final int	exponentSize
private final int	primeSize

Constructor Summary

Access	Constructor and Description
public	DHGenParameterSpec(int the size (in bits) of the prime modulus. primeSize, int the size (in bits) of the random exponent. exponentSize) Constructs a parameter set for the generation of Diffie-Hellman (system) parameters.

Method Summary

Modifier and Type	Method and Description
public int	Returns: the size in bits of the random exponent (private value) getExponentSize() Returns the size in bits of the random exponent (private value).
public int	Returns: the size in bits of the prime modulus getPrimeSize() Returns the size in bits of the prime modulus.

Inherited from java.lang.Object:: clone equals finalize getClass hashCode notify notifyAll toString wait wait wait

Field Detail

exponentSize	back to summary
private final int exponentSize

primeSize	back to summary
private final int primeSize

Constructor Detail

DHGenParameterSpec back to summary

DHGenParameterSpec	back to summary
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:int the size (in bits) of the prime modulus. exponentSize:int the size (in bits) of the random exponent.

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:int: the size (in bits) of the prime modulus.
exponentSize:int: the size (in bits) of the random exponent.

Method Detail

getExponentSize	back to summary
public int getExponentSize() Returns the size in bits of the random exponent (private value). Returns:int the size in bits of the random exponent (private value)

getExponentSize

back to summary

public int getExponentSize()

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

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

getPrimeSize	back to summary
public int getPrimeSize() Returns the size in bits of the prime modulus. Returns:int the size in bits of the prime modulus

getPrimeSize