com.ibm.crypto.pkcs11impl.provider

Class DHPKCS11KeyPairGenerator

java.lang.Object

java.security.KeyPairGeneratorSpi

com.ibm.crypto.pkcs11impl.provider.DHPKCS11KeyPairGenerator

public final class DHPKCS11KeyPairGenerator
extends java.security.KeyPairGeneratorSpi

This class represents the key pair generator for Diffie-Hellman key pairs.

This key pair generator may be initialized in two different ways:

• By providing the size in bits of the prime modulus. This will be used to create a prime modulus and base generator, which will then be used to create the Diffie-Hellman key pair.
• By providing a prime modulus and base generator.

Version:

1.0, 19/1/2005

See Also:

KeyPairGenerator

Constructor Summary

Constructors

Constructor and Description
DHPKCS11KeyPairGenerator(java.security.Provider provider) Creates the Key pair generator for Diffie-Hellman

Method Summary

Modifier and Type	Method and Description
java.security.KeyPair	generateKeyPair() Generates a key pair.
void	initialize(java.security.spec.AlgorithmParameterSpec params, java.security.SecureRandom random) Initializes this key pair generator using Parameter spec and source of randomness.
void	initialize(int keysize, java.security.SecureRandom random) Initializes this key pair generator for a certain keysize and source of randomness.

Methods inherited from class java.lang.Object

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

Constructor Detail

DHPKCS11KeyPairGenerator

public DHPKCS11KeyPairGenerator(java.security.Provider provider)

Creates the Key pair generator for Diffie-Hellman

Parameters:

provider - the provider associated with this object.

Method Detail

initialize

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

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

Specified by:

initialize in class java.security.KeyPairGeneratorSpi

Parameters:

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

random - the source of randomness

generateKeyPair

public java.security.KeyPair generateKeyPair()

Generates a key pair.

Specified by:

generateKeyPair in class java.security.KeyPairGeneratorSpi

Returns:

the new key pair

initialize

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

Initializes this key pair generator using Parameter spec and source of randomness.

Overrides:

initialize in class java.security.KeyPairGeneratorSpi

Parameters:

params - This must be a DHParameterSpec

random - the source of randomness

Throws:

java.security.InvalidAlgorithmParameterException