SHA-2(512)热噪声随机数发生器  

Thermal Noise Random Number Generator Based on SHA-2(512)

作　　者：王玉华[1] 牛丽萍[2] 张焕国[1] 沈志东[1] 

机构地区：[1]武汉大学计算机学院,武汉430079 [2]武汉大学遥感信息工程学院,武汉430079

出　　处：《计算机工程》2006年第23期244-246,共3页Computer Engineering

基　　金：国家自然科学基金资助重点项目(60373087;90104005);国家教育部博士点基金资助重点项目(20020486046)

摘　　要：密码学的快速发展,使得安全协议和密码算法的强度越来越依赖于随机数质量。该文提出了一种新的安全随机数发生器结构,该结构是基于SHA-2(512)哈希函数,该函数的强度确保所生成随机数的不可预测性。给出了该函数的FPGA实现结构。考虑到性能、功耗、灵活性、费用和面积等要求,所提出的结构在许多应用中都是一种灵活解决方案。With the rapid development of cryptography, the strength of security protocols and encryption algorithms consumingly relies on the quality of random number. This paper presents a new and security random number generator. The philosophy architecture is based on SHA-2 （512）, whose security strength ensures the unpredictability of the produced random numbers. Furthermore, an FPGA-based implementation of architecture is described. The proposed architecture is a flexible solution in many applications taking into account the performance, power consumption, flexibility, cost and area.

关 键 词：SHA-2(512) 热噪声 随机数 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]