A 562F2 Physically Unclonable Function with a Zero-Overhead Stabilization Scheme

📋 论文概要

该论文提出了一种面积为562F2的物理不可克隆函数（PUF），并采用零开销稳定方案来提升PUF响应在PVT变化下的稳定性，解决了传统PUF需要额外纠错电路或辅助存储的问题，适用于低成本低功耗的物联网设备密钥存储。

💡 主要创新点

• 实现了仅562F2的超小面积PUF单元，显著降低芯片面积开销。
• 提出零开销稳定方案，无需额外纠错电路或辅助存储即可提高PUF响应稳定性。

🏷 关键词

📄 原文摘要

Internet of Things (IoT) devices bring a growing demand for secure, low-power, and low-cost secret key and ID storage solutions. Physically unclonable functions (PUFs) are one of the most promising alternatives to conventional non-volatile memory (NVM) solutions, which usually incur extra cost and are vulnerable to physical attackers. In recent years, significant research efforts have been devoted to improving the stability of PUF responses/keys across PVT variations, while maintaining the low-cost and lowpower benefits. PUF design involves circuit topologies, stabilization methods, and error correction schemes. While redundancy-based stabilizing methods, such as extensive unstable bit masking and error correction codes (ECCs), are powerful to achieve 100% reliable keys [1,2,7], the on-chip area cost for redundancy, energy and latency during key extraction, and testing cost grow super linearly with the percentage

👥 作者与机构

Dai Li, Kaiyuan Yang

Rice University, Houston, TX