套件：libghc-tf-random-dev（0.5-13）

high-quality splittable pseudorandom number generator

This package contains an implementation of a high-quality splittable pseudorandom number generator. The generator is based on a cryptographic hash function built on top of the ThreeFish block cipher. See the paper Splittable Pseudorandom Number Generators Using Cryptographic Hashing by Claessen, Pałka for details and the rationale of the design.

The package provides the following:

 * A splittable PRNG that implements the standard System.Random.RandomGen class.

 * The generator also implements an alternative version of the
   System.Random.TF.Gen.RandomGen class (exported from System.Random.TF.Gen),
   which requires the generator to return pseudorandom integers from the full
   32-bit range, and contains an n-way split function.

 * An alternative version of the Random class is provided, which is linked to
   the new RandomGen class, together with Random instances for some integral
   types.

 * Two functions for initialising the generator with a non-deterministic
   seed: one using the system time, and one using the /dev/urandom UNIX
   special file.

Please note that even though the generator provides very high-quality pseudorandom numbers, it has not been designed with cryptographic applications in mind.

This package provides a library for the Haskell programming language. See http://www.haskell.org/ for more information on Haskell.

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