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java.lang.Object | +----java.security.AlgorithmParameterGeneratorSpi
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.
Method Summary | |
AlgorithmParameters | engineGenerateParameters()
|
void | engineInit(int strength,
SecureRandom random)
|
void | engineInit(AlgorithmParameterSpec genParamSpec,
SecureRandom random)
|
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Method Detail |
protected abstract void engineInit(int strength, SecureRandom random)
strength
- the strength (number of bits).
random
- the source of randomness.
protected abstract void engineInit(AlgorithmParameterSpec genParamSpec, SecureRandom random) throws InvalidAlgorithmParameterException
params
- the set of algorithm-specific parameter generation values.
random
- the source of randomness.
protected abstract AlgorithmParameters engineGenerateParameters()
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