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

Constructors

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

Method Summary

Modifier and Type	Method and Description
static DSAKeyPair	getInstance(java.security.SecureRandom a_secureRandom, int a_keyLength, int a_certainty) This creates a new DSA key pair.

Methods inherited from class anon.crypto.AsymmetricCryptoKeyPair

createPublicKey, getPrivate, getPublic

Methods inherited from class java.lang.Object

equals, 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