com.ibm.crypto.fips.provider

Class DHParameterGenerator

java.lang.Object

java.security.AlgorithmParameterGeneratorSpi

com.ibm.crypto.fips.provider.DHParameterGenerator

public final class DHParameterGenerator
extends java.security.AlgorithmParameterGeneratorSpi

Constructor Summary

Constructors

Constructor and Description
DHParameterGenerator()

Method Summary

Methods

Modifier and Type	Method and Description
protected java.security.AlgorithmParameters	engineGenerateParameters() Generates the parameters.
protected void	engineInit(java.security.spec.AlgorithmParameterSpec genParamSpec, java.security.SecureRandom random) Initializes this parameter generator with a set of parameter generation values, which specify the size of the prime modulus and the size of the random exponent, both in bits.
protected void	engineInit(int keysize, java.security.SecureRandom random) Initializes this parameter generator for a certain keysize and source of randomness.
protected java.security.AlgorithmParameters	internalGenerateParameters() Generates the parameters.
protected void	internalInit(java.security.spec.AlgorithmParameterSpec genParamSpec, java.security.SecureRandom random) Initializes this parameter generator with a set of parameter generation values, which specify the size of the prime modulus and the size of the random exponent, both in bits.
protected void	internalInit(int keysize, java.security.SecureRandom random) Initializes this parameter generator for a certain keysize and source of randomness.

Methods inherited from class java.lang.Object

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

Constructor Detail

DHParameterGenerator

public DHParameterGenerator()

Method Detail

engineInit

protected void engineInit(int keysize,
              java.security.SecureRandom random)

Initializes this parameter generator for a certain keysize and source of randomness. The keysize is specified as the size in bits of the prime modulus.

Specified by:

engineInit in class java.security.AlgorithmParameterGeneratorSpi

Parameters:

keysize - the keysize (size of prime modulus) in bits

random - the source of randomness

internalInit

protected void internalInit(int keysize,
                java.security.SecureRandom random)

Initializes this parameter generator for a certain keysize and source of randomness. The keysize is specified as the size in bits of the prime modulus.

Parameters:

keysize - the keysize (size of prime modulus) in bits

random - the source of randomness

engineInit

protected void engineInit(java.security.spec.AlgorithmParameterSpec genParamSpec,
              java.security.SecureRandom random)
                   throws java.security.InvalidAlgorithmParameterException

Initializes this parameter generator with a set of parameter generation values, which specify the size of the prime modulus and the size of the random exponent, both in bits.

Specified by:

engineInit in class java.security.AlgorithmParameterGeneratorSpi

Parameters:

params - the set of parameter generation values

random - the source of randomness

Throws:

java.security.InvalidAlgorithmParameterException - if the given parameter generation values are inappropriate for this parameter generator

internalInit

protected void internalInit(java.security.spec.AlgorithmParameterSpec genParamSpec,
                java.security.SecureRandom random)
                     throws java.security.InvalidAlgorithmParameterException

Initializes this parameter generator with a set of parameter generation values, which specify the size of the prime modulus and the size of the random exponent, both in bits.

Parameters:

params - the set of parameter generation values

random - the source of randomness

Throws:

java.security.InvalidAlgorithmParameterException - if the given parameter generation values are inappropriate for this parameter generator

engineGenerateParameters

protected java.security.AlgorithmParameters engineGenerateParameters()

Generates the parameters.

Specified by:

engineGenerateParameters in class java.security.AlgorithmParameterGeneratorSpi

Returns:

the new AlgorithmParameters object

internalGenerateParameters

protected java.security.AlgorithmParameters internalGenerateParameters()

Generates the parameters.

Returns:

the new AlgorithmParameters object