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

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.

External IDs:dblp:journals/corr/abs-2411-14025