Paper 2015/270 Original: eprint.iacr.org/2015/270 ↗

Fibonacci Ring Oscillators as True Random Number Generators - A Security Risk

Markus Dichtl
Abstract

Fibonacci ring oscillators are shown to have a risk to oscillate periodically instead of chaotically. The security implications of this are discussed. The probability of the occurrence of the periodic oscillations is determined experimentally on an FPGA for Fibonacci ring oscillators of lengths 16 and 32. Means to overcome the problem of the periodic oscillations are also discussed.

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Publication info
Preprint.
History
2015-03-23: last updated
2015-03-23: published
Short URL
https://ia.cr/2015/270
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2015/270,
      author = {Markus Dichtl},
      title = {Fibonacci Ring Oscillators as True Random Number Generators - A Security Risk},
      howpublished = {Cryptology {ePrint} Archive, Paper 2015/270},
      year = {2015},
      url = {https://eprint.iacr.org/2015/270}
}
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