AlgorithmParameterGeneratorSpi JDK 1.6)

Description

publicabstract abstract class AlgorithmParameterGeneratorSpi

This class defines the Service Provider Interface (SPI) for the AlgorithmParameterGenerator class, which is used to generate a set of parameters to be used with a certain algorithm.

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

In case the client does not explicitly initialize the AlgorithmParameterGenerator (via a call to an engineInit method), each provider must supply (and document) a default initialization. For example, the Sun provider uses a default modulus prime size of 1024 bits for the generation of DSA parameters.

See also: AlgorithmParameterGenerator AlgorithmParameters AlgorithmParameterSpec

Methods

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protectedabstract AlgorithmParameters engineGenerateParameters ()

Generates the parameters.

protectedabstract void engineInit (AlgorithmParameterSpec genParamSpec, SecureRandom random) throws InvalidAlgorithmParameterException

Initializes this parameter generator with a set of algorithm-specific parameter generation values.

protectedabstract void engineInit (int size, SecureRandom random)

Initializes this parameter generator for a certain size and source of randomness.