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New Methods for Digital Generation and Postprocessing of Random Data

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1 Author(s)
Golic, J.D. ; Security Innovation, Telecom Italia, Turin

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

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Computers, IEEE Transactions on  (Volume:55 ,  Issue: 10 )