Returns the given number of seed bytes. This call may be used to seed other random number generators.
Generates a user-specified number of 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.
This class defines the <i>Service Provider Interface</i> (<b>SPI</b>) for the {@code 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.