This class defines the Service Provider Interface (SPI)
for the SecureRandom class.
This class defines the Service Provider Interface (SPI) for the SecureRandom class. All the abstract methods in this class must be implemented by each service provider who wishes to supply the implementation of a cryptographically strong pseudo-random number generator.
Returns the given number of seed bytes. This call may be used to seed other random number generators.
Returns:
the seed bytes.
Parameters: - numBytes - the number of seed bytes to generate.
Generates a user-specified number of random bytes.
Generates a user-specified number of random bytes.
If a call to engineSetSeed had not occurred previously,
the first call to this method forces this SecureRandom implementation
to seed itself. This self-seeding will not occur if
engineSetSeed was previously called.
Parameters: - bytes - the array to be filled in with random bytes.
Reseeds this random object. The given seed supplements, rather than replaces, the existing seed. Thus, repeated calls are guaranteed never to reduce randomness.
Parameters: - seed - the seed.