oracle.security.crypto.core
Class DHKeyPairGenerator

java.lang.Object
oracle.security.crypto.core.KeyPairGenerator
oracle.security.crypto.core.DHKeyPairGenerator

public final class DHKeyPairGenerator

extends KeyPairGenerator

*** For internal use only *** Generates private/public keypairs, using the given domain parameters and RandomBitsSource, as specified in X9.42.

Status: Provisional (may be changed in future releases.)

See Also:

DHParams, DHPublicKey, DHPrivateKey, DHKeyAgreement

Field Summary

Fields inherited from class oracle.security.crypto.core.KeyPairGenerator

rbs

Constructor Summary

DHKeyPairGenerator()
Constructs a new, uninitialized instance of DHKeyPairGenerator.

Method Summary

KeyPair	generateKeyPair() Generates a public/private key pair.
java.lang.String	getAlgorithm() Simply returns the string "Diffie-Hellman" (provided for compatibility with the contract of the abstract class KeyPairGenerator.)
void	initialize(DHParams params, RandomBitsSource rbs) Initializes the key pair generator with the given parameters and source of randomness.
void	initialize(int L, int m, RandomBitsSource rbs) Initializes the key pair generator with the given source of randomness.
void	initialize(int L, RandomBitsSource rbs) Initializes the key pair generator with the given source of randomness.
void	setAlgID(AlgorithmIdentifier algID) Assigns the given AlgorithmIdentifier to the generator; you would only want to do this use this method as a convience, if your identifier contains a set of domain parameters (for which the call would essentially be equivalent to initialize(params).)

Methods inherited from class oracle.security.crypto.core.KeyPairGenerator

getInstance, getInstance, setRandomBitsSource

Methods inherited from class java.lang.Object

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

Constructor Detail

DHKeyPairGenerator

public DHKeyPairGenerator()

Constructs a new, uninitialized instance of DHKeyPairGenerator.

Method Detail

initialize

public void initialize(DHParams params,
                       RandomBitsSource rbs)

Initializes the key pair generator with the given parameters and source of randomness.

Parameters:

params - The DHParams object to be used to generate key pair

rbs - A secure random bits source.

initialize

public void initialize(int L,
                       int m,
                       RandomBitsSource rbs)

Initializes the key pair generator with the given source of randomness. New domain parameters of the specified size is generated.

Parameters:

L - The size in bits for p

m - The size in bits for q

rbs - A secure random bits source.

initialize

public void initialize(int L,
                       RandomBitsSource rbs)

Initializes the key pair generator with the given source of randomness. New domain parameters of the specified size for p and 160-bits q is generated.

Specified by:

initialize in class KeyPairGenerator

Parameters:

L - The size in bits for p

rbs - A secure random bits source.

getAlgorithm

public java.lang.String getAlgorithm()

Simply returns the string "Diffie-Hellman" (provided for compatibility with the contract of the abstract class KeyPairGenerator.)

Specified by:

getAlgorithm in class KeyPairGenerator

Returns:

"Diffie-Hellman"

setAlgID

public void setAlgID(AlgorithmIdentifier algID)
              throws AlgorithmIdentifierException

Assigns the given AlgorithmIdentifier to the generator; you would only want to do this use this method as a convience, if your identifier contains a set of domain parameters (for which the call would essentially be equivalent to initialize(params).)

Specified by:

setAlgID in class KeyPairGenerator

Throws:

AlgorithmIdentifierException

generateKeyPair

public KeyPair generateKeyPair()

Description copied from class: KeyPairGenerator

Generates a public/private key pair.

Specified by:

generateKeyPair in class KeyPairGenerator