DHGenParameterSpec (Java SE 15 & JDK 15) (original) (raw)

All Implemented Interfaces:

[AlgorithmParameterSpec](../../../java/security/spec/AlgorithmParameterSpec.html "interface in java.security.spec")

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.

Since:

1.4

See Also:

DHParameterSpec

• Constructor Summary

Constructors

• Method Summary

Methods declared in class java.lang.Object

[clone](../../../java/lang/Object.html#clone%28%29), [equals](../../../java/lang/Object.html#equals%28java.lang.Object%29), [finalize](../../../java/lang/Object.html#finalize%28%29), [getClass](../../../java/lang/Object.html#getClass%28%29), [hashCode](../../../java/lang/Object.html#hashCode%28%29), [notify](../../../java/lang/Object.html#notify%28%29), [notifyAll](../../../java/lang/Object.html#notifyAll%28%29), [toString](../../../java/lang/Object.html#toString%28%29), [wait](../../../java/lang/Object.html#wait%28%29), [wait](../../../java/lang/Object.html#wait%28long%29), [wait](../../../java/lang/Object.html#wait%28long,int%29)

• Constructor Details

  • 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 anAlgorithmParameterGenerator 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.

• Method Details

  • 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)