com.ibm.crypto.pkcs11impl.provider

Class RSAPKCS11KeyPairGenerator

java.lang.Object

java.security.KeyPairGeneratorSpi

com.ibm.crypto.pkcs11impl.provider.RSAPKCS11KeyPairGenerator

public final class RSAPKCS11KeyPairGenerator
extends java.security.KeyPairGeneratorSpi

This class generates RSA public/private key pairs. Note: There is a very small chance that an ArithmeticException being thrown during generateKeyPair().

Constructor Summary

Constructors

Constructor and Description
RSAPKCS11KeyPairGenerator() Creates a new instance of this class.
RSAPKCS11KeyPairGenerator(java.security.Provider provider) Creates a new instance of this class.

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) RSAPKCS11KeyPairGenerator requires Algorithm Parameters of type PKCS11RSAKeyPairParameter
void	initialize(int strength) Initializes this KeyPairGenerator for given modulus.
void	initialize(int strength, java.security.SecureRandom random) Initializes this KeyPairGenerator for given modulus and random source.

Methods inherited from class java.lang.Object

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

Constructor Detail

RSAPKCS11KeyPairGenerator

public RSAPKCS11KeyPairGenerator(java.security.Provider provider)

Creates a new instance of this class.

RSAPKCS11KeyPairGenerator

public RSAPKCS11KeyPairGenerator()

Creates a new instance of this class.

Method Detail

initialize

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

RSAPKCS11KeyPairGenerator requires Algorithm Parameters of type PKCS11RSAKeyPairParameter

Overrides:

initialize in class java.security.KeyPairGeneratorSpi

Parameters:

params - Algorithm Parameters of type PKCS11RSAKeyPairParameter

random - which is not used and can be set to null.

Throws:

java.security.InvalidAlgorithmParameterException - is thrown if params is null or not an instance of PKCS11RSAKeyPairParameter

initialize

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

Initializes this KeyPairGenerator for given modulus and random source.

Specified by:

initialize in class java.security.KeyPairGeneratorSpi

Parameters:

strength - is the size of the modulu.

random - which is not used and can be set to null.

Throws:

java.security.InvalidParameterException - if strength is invalid

initialize

public void initialize(int strength)

Initializes this KeyPairGenerator for given modulus.

Parameters:

strength - is the size of the modulu.

Throws:

java.security.InvalidParameterException - if strength is invalid

generateKeyPair

public java.security.KeyPair generateKeyPair()

Generates a Key Pair

Specified by:

generateKeyPair in class java.security.KeyPairGeneratorSpi

Returns:

a KeyPair contains a pair of generated RSA keys Note: There is a very small chance (1/1000) that an ArithmeticException being thrown during generateKeyPair(). In that case, calling generateKeyPair() again will give a new pair of keys.