anon.crypto
Class DSAKeyPair

java.lang.Object
  anon.crypto.AsymmetricCryptoKeyPair
      anon.crypto.DSAKeyPair

public class DSAKeyPair
extends AsymmetricCryptoKeyPair

This class creates key pairs for the DSA algorithm.

Author:

Rolf Wendolsky

Field Summary

Fields inherited from class anon.crypto.AsymmetricCryptoKeyPair

KEY_LENGTH_1024, KEY_LENGTH_512

Constructor Summary

DSAKeyPair(MyDSAPrivateKey a_privateKey)
Creates a new DSA key pair.

Method Summary

static DSAKeyPair	getInstance(java.security.SecureRandom a_secureRandom, int a_keyLength, int a_certainty) This creates a new DSA key pair.
private static DSAKeyPair	getInstanceJCE(java.security.SecureRandom a_secureRandom, int a_keyLength, int a_certainty)

Methods inherited from class anon.crypto.AsymmetricCryptoKeyPair

createPublicKey, getPrivate, getPublic, isValidKeyPair

Methods inherited from class java.lang.Object

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

Constructor Detail

DSAKeyPair

public DSAKeyPair(MyDSAPrivateKey a_privateKey)

Creates a new DSA key pair.

Parameters:

a_privateKey - a private key

Method Detail

getInstance

public static DSAKeyPair getInstance(java.security.SecureRandom a_secureRandom,
                                     int a_keyLength,
                                     int a_certainty)

This creates a new DSA key pair.

Parameters:

a_secureRandom - A random number as initialization for the key generator.

a_keyLength - The length of the key in bits. For the current implementation of bouncycastle it must be a number between 256 and 1024 which is a multiple of 64.

a_certainty - Measure of robustness of prime. For FIPS 186-2 compliance this value should be at least 80.

Returns:

a key pair or null if no key pair could be created with these parameters

getInstanceJCE

private static DSAKeyPair getInstanceJCE(java.security.SecureRandom a_secureRandom,
                                         int a_keyLength,
                                         int a_certainty)