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Molecular MUX-Based Physical Unclonable Functions
arXiv - CS - Emerging Technologies Pub Date : 2020-05-27 , DOI: arxiv-2005.13610
Lulu Ge and Keshab K. Parhi

Physical unclonable functions (PUFs) are small circuits that are widely used as hardware security primitives for authentication. These circuits can generate unique signatures because of the inherent randomness in manufacturing and process variations. This paper introduces molecular PUFs based on multiplexer (MUX) PUFs using dual-rail representation. It may be noted that molecular PUFs have not been presented before. Each molecular multiplexer is synthesized using 16 molecular reactions. The intrinsic variations of the rate constants of the molecular reactions are assumed to provide inherent randomness necessary for uniqueness of PUFs. Based on Gaussian distribution of the rate constants of the reactions, this paper simulates intra-chip and inter-chip variations of linear molecular MUX PUFs containing 8, 16, 32 and 64 stages. These variations are, respectively, used to compute reliability and uniqueness. It is shown that, for the rate constants used in this paper, although 8-state molecular MUX PUFs are not useful as PUFs, PUFs containing 16 or higher stages are useful as molecular PUFs. Like electronic PUFs, increasing the number of stages increases uniqueness and reliability of the PUFs

中文翻译:

基于分子 MUX 的物理不可克隆函数

物理不可克隆功能 (PUF) 是广泛用作身份验证的硬件安全原语的小型电路。由于制造和工艺变化的固有随机性,这些电路可以产生独特的特征。本文介绍了使用双轨表示的基于多路复用器 (MUX) PUF 的分子 PUF。可能需要注意的是,之前还没有出现过分子 PUF。每个分子多路复用器使用 16 个分子反应合成。假定分子反应速率常数的内在变化提供了 PUF 独特性所需的固有随机性。基于反应速率常数的高斯分布,本文模拟了包含 8、16、32 和 64 级的线性分子 MUX PUF 的芯片内和芯片间变化。这些变化是,分别用于计算可靠性和唯一性。结果表明,对于本文中使用的速率常数,虽然 8 态分子 MUX PUF 不能用作 PUF,但包含 16 级或更高阶段的 PUF 可用作分子 PUF。与电子 PUF 一样,增加级数会增加 PUF 的唯一性和可靠性
更新日期:2020-08-11
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