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6.2 (c) 2002 IAIK, (c) 2003 - 2025 SIC |
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public abstract class FIPS186Random extends SecRandom
This pseudo random works according to FIPS PUB 186-2 with an hash
function as one-way function G(t,c). As this is a
general purpose random generator, the mod q
operation is omitted. As a consequence of omitting this modulo
operation, the changes to the FIPS PUB 186-2 pseudo random generator
need not be considered, because they have no influence in this case.
The concrete classes are derived from this class and provide a raw hash algorithm. The raw hash provides access to the raw compression function. This algorithm requires a raw hash rather than a complete hash, because this FIPS algorithm operates on the compression function part and not on the complete hash function. The complete hash function includes a certain padding, which this algorithm does not; it simply appends zeros up to the required block size.
SHA1FIPS186Random,
SHA256FIPS186Random,
SHA384FIPS186Random,
SHA512FIPS186Random,
RipeMd160FIPS186Random,
SeedGenerator,
Serialized FormgetAlgorithm, getDefault, setDefault, setDefault, setSeedgenerateSeed, getInstance, getInstance, getInstance, getInstanceStrong, getProvider, getSeed, next, nextBytes, setSeed, setSeed