• IntroductionHardware random number generator
  • UsesCryptography
  • Early work
  • Physical phenomena with random propertiesQuantum random propertiesClassical random propertiesClock drift
  • Dealing with biasSoftware whiteningPRNG with periodically refreshed random key
  • Using observed events
  • Online systems
  • ProblemsAttacksEstimating entropyPerformance test
  • See also
  • ReferencesGeneral references
  • External links
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