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arXiv · 2411.14025

RISecure-PUF: Multipurpose PUF-Driven Security Extensions with Lookaside Buffer in RISC-V

Chenghao Chen·Xiaolin Zhang·Kailun Qin·Tengfei Wang·Yipeng Shi·Tianyi Huang·Chi Zhang·Dawu Gu
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Abstract

RISC-V's limited security features hinder its use in confidential computing and heterogeneous platforms. This paper introduces RISecure-PUF, a security extension utilizing existing Physical Unclonable Functions for key generation and secure protocol purposes. A one-way hash function is integrated to ensure provable security against modeling attacks, while a lookaside buffer accelerates batch sampling and minimizes reliance on error correction codes. Implemented on the Genesys 2 FPGA, RISecure-PUF improves at least $2.72\times$ in batch scenarios with negligible hardware overhead and a maximum performance reduction of $10.7\%$, enabled by reusing the hash function module in integrated environments such as cryptographic engines.

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Chenghao Chen, Xiaolin Zhang, Kailun Qin, Tengfei Wang, Yipeng Shi, Tianyi Huang, Chi Zhang, Dawu Gu. 2024-11-21. RISecure-PUF: Multipurpose PUF-Driven Security Extensions with Lookaside Buffer in RISC-V. https://arxiv.org/abs/2411.14025

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