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Stream cipher design using cellular automata implemented on FPGAs

机译:使用在FPGA上实现的蜂窝自动机的流密码设计

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Pseudo-random number generators (PRNGs) are a key component of stream ciphers used for encryption purposes. While linear feedback shift registers (LFSRs) combined with nonlinear feedback shift registers (NFSRs) have typically been utilized for PRNGs, the use of cellular automata (CA) is another viable option. This paper explores the combination of LFSRs and CA as the key components of an efficient stream cipher design for implementation on Field Programmable Gate Arrays (FPGAs). The proposed stream cipher design builds upon a recent published design known as A2U2. The suite of statistical tests found in the Diehard program is utilized to evaluate the quality of random numbers from the proposed CA-based stream cipher. Comparisons with the A2U2 design indicate that the use of CA have the potential to improve the quality of the random numbers generated and hence increase the security of the cipher.
机译:伪随机数生成器(PRNG)是用于加密目的的流密码的关键组成部分。虽然PRNG通常使用线性反馈移位寄存器(LFSR)与非线性反馈移位寄存器(NFSR)相结合,但使用元胞自动机(CA)是另一种可行的选择。本文探讨了LFSR和CA的结合,这是在现场可编程门阵列(FPGA)上实现的高效流密码设计的关键组成部分。提议的流密码设计基于最近发布的称为A2U2的设计。在Diehard程序中找到的统计测试套件可用于评估所提出的基于CA的流密码中随机数的质量。与A2U2设计的比较表明,使用CA有潜力提高生成的随机数的质量,从而提高密码的安全性。

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