一种基于FPGA的真随机数生成器的设计.pdf

DOI :10.1324 /j.hust.2009.01.011 37　1 　　　　　　　 () Vol.37 No.1 2009　1　 J.Huazhong Univ.of Sci.Tech.(Natural Science Edition) 　Jan.　2009 FPGA 霍文捷　刘政林　陈毅成　邹雪城 (华中科技大学 电子科学与技术系, 湖北武汉430074) :(TRNG)、 , T RNG.TRNG , (LFSR). Xilinx Spartan3 , 、 TRNG .T RNG ., TRNG , . 　　:;;;;; :TP309　　:A 　　:1671-4 12(2009)01-0073-04 Design of a true random number generator using FPGA H uo Wenj ie 　L i u Z heng lin 　Chen Yicheng 　Zou X uecheng (Department of Electronics Science and Technology, Huazhong University of Science and Technology, Wuhan 430074, China) Abstract:Current true random number generators (T RNG )are high in cost and bad in transplanta- tion.A TRNG w as designed by using clock jitter and phase drift .In this T RNG, the random source consists of oscillation rings of inverters, and a linear feedback shift register (LFSR)is utilized to im- plement the post process.In the tests on Xilinx Spartan3 test platform, the effects of the design pa- rameters, such as the number of oscillation rings and sample frequency, are discussed.The result of the random test indicates that the random sequence of the TRNG is safe and reliable.Since the TRNG only uses common logic unites, it can be quickly transplanted to the integrated circuit design process, and shorten the development cycle. Key words:cryptology;true random number generator;field programmable gate array;oscillation ring;clock jitter;phase drift 　　 , [1] .TRNG T RNG, 3 :、 FPGA TRNG [2] . . , , .[3 ～7] 1　T RNG , PLL , FPGA 1.1　 .