Physical random number formation method and physical random number formation device

摘要

Physical random number formation method and the physical random number formation device whose it is possible to obtain safe random number in high speed, are offered. The physical random number formation device is formed is output the laser device the frequency discrimination filter the ON OFF detector 32 which converts the analog signal which as the particular detection result from the photodetector 13 which converts strength of 2 which discriminates the frequency of 1 which irradiates laser light L1 and laser light L1 and transmitted light L2 to the electric information and photodetector 13 to the digital data or from A/D transmitter 30. First, it passes through the laser light L1 which was irradiated from laser device 1 to frequency discrimination filter 2. Strength of transmitted light L2 corresponding to the fluctuation of frequency of laser light L1, changes in strength. Next, it converts strength of this transmitted light L2 to the electric information with photodetector, 13 it converts to binary random number ON OFF detector 32 or making use of A/D transmitter 30. And, this binary random number data is taken in to PC31. Selective figure Figure 1