摘要
This paper presents a low power,truly random number generator （TRNG） based on a simple chaotic map of the Bernoulli shift,which is extended to remain robustness in implementation. The map is realized by switched-current techniques that can fully integrate it in a cryptosystem on a chip. A pipelined architecture post-processed by a simple XOR circuit is used to improve the entropy. The TRNG is fabricated in an HJTC 0.18μm CMOS mixed signal process,and the statistical properties are investigated by measurement results. The power consumption is only 1.42mW and the truly random output bit rate is 10Mbit/s.
提出了一种低功耗真随机数发生器,它基于简单的伯努利移位混沌映射,并通过对映射进行特殊扩展来保证在实际实现中保持鲁棒性.映射由开关电流技术实现,从而使其可以完全嵌入到片上密码系统中.采用流水线结构并用简单的异或电路来提高信息熵.该随机数发生器采用HJTC的0.18μmCMOSmixedsignal工艺进行流片,并通过测试对其统计特性进行了分析.芯片功耗仅为1.42mW,输出比特率为10Mbit/s.
