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21 February 2011 Super fast physical-random number generation using laser diode frequency noises
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Random numbers can be classified as either pseudo- or physical-random in character. Pseudo-random numbers' periodicity renders them inappropriate for use in cryptographic applications, but naturally-generated physical-random numbers have no calculable periodicity, thereby making them ideally-suited to the task. The laser diode naturally produces a wideband "noise" signal that is believed to have tremendous capacity and great promise, for the rapid generation of physical-random numbers for use in cryptographic applications. We measured a laser diode's output, at a fast photo detector and generated physical-random numbers from frequency noises. We then identified and evaluated the binary-number-line's statistical properties. The result shows that physical-random number generation, at speeds as high as 40Gbps, is obtainable, using the laser diode's frequency noise characteristic.
© (2011) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Tetsuro Ushiki, Kohei Doi, Shinya Maehara, Takashi Sato, Masashi Ohkawa, and Yasuo Ohdaira "Super fast physical-random number generation using laser diode frequency noises", Proc. SPIE 7933, Physics and Simulation of Optoelectronic Devices XIX, 79332F (21 February 2011);

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