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, Tetsuro Ushiki, Kohei Doi, Kohei Doi, Shinya Maehara, Shinya Maehara, Takashi Sato, Takashi Sato, Masashi Ohkawa, Masashi Ohkawa, Yasuo Ohdaira, 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); doi: 10.1117/12.875830; https://doi.org/10.1117/12.875830

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