Low-cost configurable ring oscillator PUF with improved uniqueness

2016 IEEE International Symposium on Circuits and Systems (ISCAS) Pub Date : 2016-08-11 DOI:10.1109/ISCAS.2016.7527301

Yijun Cui, Chenghua Wang, Weiqiang Liu, Yifei Yu, Máire O’Neill, F. Lombardi

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引用次数: 35

Abstract

The physical unclonable function (PUF) produces die-unique responses and is regarded as an emerging security primitive that can be used for authentication of devices. The complexity of a conventional PUF design based on a ring oscillator (RO) is rather high, so limiting its use in many applications. The configurable ring oscillator (CRO) PUF has been advocated as a possible solution to this issue. In this paper, a low hardware complexity CRO PUF design with an enhanced capability to generate a large number of bit responses is proposed; only an inverter and a multiplexer are used in each delay unit. The responses are generated by considering the variation due to fabrication of the logic gates and wires in the CROs. A novel comparison strategy is proposed for the generation of the responses. The proposed PUF design is implemented on Xilinx Spartan-6 FPGAs. These results show that the proposed CRO PUF design has good uniqueness; moreover, it is also robust in its operation for the temperature range of −25°C∼85°C.

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具有改进唯一性的低成本可配置环振荡器PUF

物理不可克隆函数(PUF)产生模唯一响应，被认为是一种新兴的安全原语，可用于设备的身份验证。基于环形振荡器(RO)的传统PUF设计的复杂性相当高，因此限制了其在许多应用中的使用。可配置环形振荡器(CRO) PUF被认为是解决这个问题的一种可能的方法。本文提出了一种低硬件复杂度的CRO PUF设计，增强了产生大量位响应的能力;在每个延迟单元中只使用一个逆变器和一个多路复用器。通过考虑cro中逻辑门和导线制造引起的变化来产生响应。提出了一种新的比较策略来生成响应。提出的PUF设计在Xilinx Spartan-6 fpga上实现。结果表明，所提出的CRO PUF设计具有良好的唯一性;此外，它在−25°C ~ 85°C的温度范围内工作也很稳定。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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2016 IEEE International Symposium on Circuits and Systems (ISCAS)

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