com.motorola.iden.security
Class KeyPairGeneratorSpi

java.lang.Object
  |
  +--com.motorola.iden.security.KeyPairGeneratorSpi

Direct Known Subclasses:

DHKeyPairGen, ECCKeyPairGen

public abstract class KeyPairGeneratorSpi

extends java.lang.Object

This class defines the Service Provider Interface (SPI) for the KeyPairGenerator class, which is used to generate pairs of public and private keys.

All the abstract methods in this class must be implemented by each cryptographic service provider who wishes to supply the implementation of a key pair generator for a particular algorithm.

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Constructor Summary

KeyPairGeneratorSpi()

Method Summary

protected abstract KeyPair	engineGenerateKeyPair() Generates a key pair.
protected abstract void	engineInitialize(AlgorithmParameterSpec params) Initializes the key pair generator using the specified parameter set.
protected abstract void	engineInitialize(int keysize) Initializes the key pair generator for a certain keysize, using the default parameter set.Method/Constructor description

Methods inherited from class java.lang.Object

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

Constructor Detail

KeyPairGeneratorSpi

public KeyPairGeneratorSpi()

Method Detail

engineInitialize

protected abstract void engineInitialize(int keysize)
                                  throws InvalidAlgorithmParameterException

Initializes the key pair generator for a certain keysize, using the default parameter set.Method/Constructor description

Parameters:

keysize - the keysize. This is an algorithm-specific metric, such as modulus length, specified in number of bits.

Throws:

InvalidAlgorithmParameterException - if the keysize is not supported by this KeyPairGeneratorSpi object.

engineInitialize

protected abstract void engineInitialize(AlgorithmParameterSpec params)
                                  throws InvalidAlgorithmParameterException

Initializes the key pair generator using the specified parameter set.

Parameters:

params - the parameter set used to generate the keys.

Throws:

InvalidAlgorithmParameterException - if the given parameters are inappropriate for this key pair generator.

engineGenerateKeyPair

protected abstract KeyPair engineGenerateKeyPair()

Generates a key pair.

Returns:

the newly generated KeyPair