Journal of information and communication convergence engineering

The Korea Institute of Information and Commucation Engineering (한국정보통신학회)
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Always Metastable State True Random Number Generator

  • Seo, Hwa-Jeong (Department of Computer Engineering, Pusan National University) ;
  • Kim, Ho-Won (Department of Computer Engineering, Pusan National University)
  • Received : 2012.05.11
  • Accepted : 2012.06.18
  • Published : 2012.09.30
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Abstract

This paper presents an efficient filtering system for a metastable state-based true random number generator. To output a result with high randomness, we use loop-storage for storing the value of metastability. During the metastable state, the output value is accumulated to the storage. When the non-metastable state arises, the stored metastable value will be used for output instead of the result of the non-metastable state. As a result, we can maintain high entropy together with the original throughput.

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References

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