org.spongycastle.crypto.params

Class DSAParameterGenerationParameters

java.lang.Object

org.spongycastle.crypto.params.DSAParameterGenerationParameters

public class DSAParameterGenerationParameters
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field and Description
static int	DIGITAL_SIGNATURE_USAGE
static int	KEY_ESTABLISHMENT_USAGE

Constructor Summary

Constructors

Constructor and Description
DSAParameterGenerationParameters(int L, int N, int certainty, java.security.SecureRandom random) Construct without a usage index, this will do a random construction of G.
DSAParameterGenerationParameters(int L, int N, int certainty, java.security.SecureRandom random, int usageIndex) Construct for a specific usage index - this has the effect of using verifiable canonical generation of G.

Method Summary

Modifier and Type	Method and Description
int	getCertainty()
int	getL()
int	getN()
java.security.SecureRandom	getRandom()
int	getUsageIndex()

Methods inherited from class java.lang.Object

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

Field Detail

DIGITAL_SIGNATURE_USAGE

public static final int DIGITAL_SIGNATURE_USAGE

See Also:

Constant Field Values

KEY_ESTABLISHMENT_USAGE

public static final int KEY_ESTABLISHMENT_USAGE

See Also:

Constant Field Values

Constructor Detail

DSAParameterGenerationParameters

public DSAParameterGenerationParameters(int L,
                                        int N,
                                        int certainty,
                                        java.security.SecureRandom random)

Construct without a usage index, this will do a random construction of G.

Parameters:

L - desired length of prime P in bits (the effective key size).

N - desired length of prime Q in bits.

certainty - certainty level for prime number generation.

random - the source of randomness to use.

DSAParameterGenerationParameters

public DSAParameterGenerationParameters(int L,
                                        int N,
                                        int certainty,
                                        java.security.SecureRandom random,
                                        int usageIndex)

Construct for a specific usage index - this has the effect of using verifiable canonical generation of G.

Parameters:

L - desired length of prime P in bits (the effective key size).

N - desired length of prime Q in bits.

certainty - certainty level for prime number generation.

random - the source of randomness to use.

usageIndex - a valid usage index.

Method Detail

getL

public int getL()

getN

public int getN()

getCertainty

public int getCertainty()

getRandom

public java.security.SecureRandom getRandom()

getUsageIndex

public int getUsageIndex()