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Issue No. 10 - October (2006 vol. 55)
ISSN: 0018-9340
pp: 1217-1229
A new method for digital true random number generation based on asynchronous logic circuits with feedback is introduced. In particular, a concrete technique using the so-called Galois and Fibonacci ring oscillators is developed and analyzed both theoretically and experimentally. The generated random binary sequences may have a very high speed and a higher and more robust entropy rate in comparison with previous proposals for digital random number generators. A new method for digital postprocessing of random data based on irregularly clocked nonautonomous synchronous logic circuits with feedback is also introduced and a concrete technique using a self-clock-controlled linear feedback shift register is proposed. The postprocessing can provide both randomness extraction and computationally secure speed increase of input random data.
Random number generation, special-purpose hardware, integrated circuits, sequential circuits, chaotic systems, ring oscillators, linear feedback shift registers.

J. D. Golic, "New Methods for Digital Generation and Postprocessing of Random Data," in IEEE Transactions on Computers, vol. 55, no. , pp. 1217-1229, 2006.
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