基于混沌的高速真随机数发生器的设计与实现  

Implementation of Chaos-Based High-Speed TrulyRandom Number Generator

作　　者：俞俊[1] 沈海斌[1] 严晓浪[1] 

机构地区：[1]浙江大学超大规模集成电路设计研究所,杭州310027

出　　处：《Journal of Semiconductors》2004年第8期1013-1018,共6页半导体学报（英文版）

基　　金：国家高技术研究发展计划资助项目 (批准号 :2 0 0 1AA14 10 5 0 )~~

摘　　要：选取分段线性的混沌表达式来设计真随机数发生器 ,具体分析了表达式中参数对迭代产生的序列的影响 ,并给出了最佳的参数选择范围 .真随机数发生器由模拟电路实现 ,整个电路由八级结构相同的子电路和一级抗饱和电路构成 .每级子电路都由运算电路和采样 /保持电路两部分组成 ,同时 ,分析了它们的工作过程和仿真结果 .介绍了如何在开关电容电路中消除电荷注入对电路的影响 .所设计的真随机数发生器芯片采用 TSMC的 0 .2 5 μm,mixed signal的工艺进行流片 ,芯片面积为 2 .34m m2 。The piecewise linear chaotic expression is chosen to design random number generator(RNG).The effect of the expression's parameters to the iterative sequence is analyzed,and the optimal scope for choosing the parameters is given.The RNG is realized by an analog circuit.It is composed of eight subcircuits whose structure is identical to each other and an anti saturation circuit.Every subcircuit is composed of an operational circuit and a sample/hold circuit.Their working process is analysed.The way to eliminate the charge injection in the switched capacitor circuit is also discussed.The chip of TRNG is taped out in TSMC with the 0 25μm,mixed signal process.The total area of die is 2 34mm 2.Test of the TRNG chip is also finished.

关 键 词：随机数发生器 混沌 开关电容 电荷注入 

分 类 号：TN918.6[电子电信—通信与信息系统]