Spec-Zone .ru
спецификации, руководства, описания, API
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public abstract class AlgorithmParameterGeneratorSpi extends Object
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.
AlgorithmParameterGenerator
,
AlgorithmParameters
,
AlgorithmParameterSpec
Constructor and Description |
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AlgorithmParameterGeneratorSpi() |
Modifier and Type | Method and Description |
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protected abstract AlgorithmParameters |
engineGenerateParameters()
Generates the parameters.
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protected abstract void |
engineInit(AlgorithmParameterSpec genParamSpec,
SecureRandom random)
Initializes this parameter generator with a set of
algorithm-specific parameter generation values.
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protected abstract void |
engineInit(int size,
SecureRandom random)
Initializes this parameter generator for a certain size
and source of randomness.
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protected abstract void engineInit(int size, SecureRandom random)
size
- the size (number of bits).random
- the source of randomness.protected abstract void engineInit(AlgorithmParameterSpec genParamSpec, SecureRandom random) throws InvalidAlgorithmParameterException
genParamSpec
- the set of algorithm-specific parameter generation values.random
- the source of randomness.InvalidAlgorithmParameterException
- if the given parameter
generation values are inappropriate for this parameter generator.protected abstract AlgorithmParameters engineGenerateParameters()
For further API reference and developer documentation, see Java SE Documentation. That documentation contains more detailed, developer-targeted descriptions, with conceptual overviews, definitions of terms, workarounds, and working code examples.
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