org.mozilla.jss.netscape.security.provider

Class DSAKeyPairGenerator

java.lang.Object

java.security.KeyPairGeneratorSpi

java.security.KeyPairGenerator

org.mozilla.jss.netscape.security.provider.DSAKeyPairGenerator

All Implemented Interfaces:

java.security.interfaces.DSAKeyPairGenerator

public class DSAKeyPairGenerator
extends java.security.KeyPairGenerator
implements java.security.interfaces.DSAKeyPairGenerator

This class generates DSA key parameters and public/private key pairs according to the DSS standard NIST FIPS 186. It uses the updated version of SHA, SHA-1 as described in FIPS 180-1.

Constructor Summary

Constructors

Constructor and Description
DSAKeyPairGenerator()

Method Summary

Modifier and Type	Method and Description
java.security.KeyPair	generateKeyPair() Generates a pair of keys usable by any JavaSecurity compliant DSA implementation.
java.security.KeyPair	generateKeyPair(java.math.BigInteger p, java.math.BigInteger q, java.math.BigInteger g, java.security.SecureRandom random)
void	initialize(java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) Initializes the DSA object using a parameter object.
void	initialize(java.security.interfaces.DSAParams params, java.security.SecureRandom random) Initializes the DSA object using a DSA parameter object.
void	initialize(int modlen, boolean genParams, java.security.SecureRandom random) Initializes the DSA key pair generator.
void	initialize(int strength, java.security.SecureRandom random)

Methods inherited from class java.security.KeyPairGenerator

genKeyPair, getAlgorithm, getInstance, getInstance, getInstance, getProvider, initialize, initialize

Methods inherited from class java.lang.Object

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

Constructor Detail

DSAKeyPairGenerator

public DSAKeyPairGenerator()

Method Detail

initialize

public void initialize(int strength,
                       java.security.SecureRandom random)

Overrides:

initialize in class java.security.KeyPairGenerator

initialize

public void initialize(int modlen,
                       boolean genParams,
                       java.security.SecureRandom random)
                throws java.security.InvalidParameterException

Initializes the DSA key pair generator. If genParams is false, a set of pre-computed parameters is used. In this case, modelen must be 512, 768, or 1024.

Specified by:

initialize in interface java.security.interfaces.DSAKeyPairGenerator

Throws:

java.security.InvalidParameterException

initialize

public void initialize(java.security.interfaces.DSAParams params,
                       java.security.SecureRandom random)
                throws java.security.InvalidParameterException

Initializes the DSA object using a DSA parameter object.

Specified by:

initialize in interface java.security.interfaces.DSAKeyPairGenerator

Parameters:

params - a fully initialized DSA parameter object.

Throws:

java.security.InvalidParameterException

initialize

public void initialize(java.security.spec.AlgorithmParameterSpec params,
                       java.security.SecureRandom random)
                throws java.security.InvalidAlgorithmParameterException

Initializes the DSA object using a parameter object.

Overrides:

initialize in class java.security.KeyPairGenerator

Parameters:

params - the parameter set to be used to generate the keys.

random - the source of randomness for this generator.

Throws:

java.security.InvalidAlgorithmParameterException - if the given parameters are inappropriate for this key pair generator

generateKeyPair

public java.security.KeyPair generateKeyPair()

Generates a pair of keys usable by any JavaSecurity compliant DSA implementation.

Overrides:

generateKeyPair in class java.security.KeyPairGenerator

Parameters:

rnd - the source of random bits from which the random key generation parameters are drawn. In particular, this includes the XSEED parameter.

Throws:

java.security.InvalidParameterException - if the modulus is not between 512 and 1024.

generateKeyPair

public java.security.KeyPair generateKeyPair(java.math.BigInteger p,
                                             java.math.BigInteger q,
                                             java.math.BigInteger g,
                                             java.security.SecureRandom random)