| ComScire (Quantum World Corp): Device driver for random number generation using entropy sources within a PC using no additional hardware. On-line purchase, free download of trial version. |
| Hardware Random Number Generators: Report on testing and applications by Robert Davies, October 2000. |
| HotBits: Genuine Random Numbers: HotBits is a service which generates random data from the decay of radioactive material and sends it over the internet. |
| Lavarand: 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. |
| Protego Information AB: Products include the SG100 hardware random number generator that connects to a PC serial port,driver software for Windows 95/Windows NT and example programs in source. Based in Lund, Sweden. |
| Random Number Generator: Orion Products. A parallel port dongle consisting of two independent analogue Zener diode based noise sources, with associated software. (Mac/DOS/Win) |
| Random.org - True Random Number Service: 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. |
| Really Random Numbers: Random number generator software based on white noise from the sound card. Free download of evaluation version, on-line purchase. Windows32. |