SHA-2(512)热噪声随机数发生器

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

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.