一种基于流水型ADC的高速真随机数发生器  

A Pipeline ADC-Based High-Speed Truly Random Number Generator

作　　者：张勇[1] 王永生[1] 周童[1] 来逢昌[1] 

机构地区：[1]哈尔滨工业大学微电子中心,黑龙江哈尔滨150001

出　　处：《微电子学与计算机》2010年第3期87-92,共6页Microelectronics & Computer

摘　　要：1.5位每级流水型ADC子单元的传输函数满足混沌映射的特性,通过将子单元的两个数字输出进行异或,改变产生序列的分布特性,即可用来产生独立且均匀分布的随机数.根据这个原理设计实现了一种高速真随机数发生器,并引入了一种新型的高速低功耗预放大锁存比较器.仿真结果表明,在未加任何后处理电路修正的情况下,生成的随机序列即可通过NIST标准随机性检测,输出比特率可达200Mb/s.The corresponding analog input to analog output characteristic map derived from the building of one and a half bit per stage pipeline ADC presents chaotic characteristics. We can make the two digital outputs per stage XOR to change the distribution characteristics of sequence for generating independent identically distributed random bits. Employing this method we design a high speed truly random number generator, and introduce a novel high speed low power preamplifierlatch comparator. The simulation result shows that the output can pass standard NIST statistical tests without any post- processed and the output bit rate can reach 200Mb/s.

关 键 词：真随机数发生器 混沌映射 流水型ADC 

分 类 号：TN402[电子电信—微电子学与固体电子学]