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Device driver for random number generation using entropy sources within a PC using no additional hardware. On-line purchase, free download of trial version.

A demonstration of the EntropyPool, entropy filter and gatherer daemon, gathering random noise from a number of sources. Download random bits or the Java source.

A system by which a pseudorandom number generator is seeded by cryptographic hash of the digital output of a photograph of six Lava Lite lamps.

Orion Products. A parallel port dongle consisting of two independent analogue Zener diode based noise sources, with associated software. (Mac/DOS/Win)

True random number generator with CORBA and WWW interfaces. Numbers are generated with atmospheric noise. Source code for many clients (Java, Perl, and C++) online.