Revisiting and Evaluating Software Side-channel Vulnerabilities and Countermeasures in Cryptographic Applications

2019/11/21 by Zhang, Tianwei, Jiang, Jun, Zhang, Yinqian
#Cryptography and Security (cs.CR) #FOS: Computer and information sciences

paper · doi:10.48550/arxiv.1911.09312

Abstract

We systematize software side-channel attacks with a focus on vulnerabilities and countermeasures in the cryptographic implementations. Particularly, we survey past research literature to categorize vulnerable implementations, and identify common strategies to eliminate them. We then evaluate popular libraries and applications, quantitatively measuring and comparing the vulnerability severity, response time and coverage. Based on these characterizations and evaluations, we offer some insights for side-channel researchers, cryptographic software developers and users. We hope our study can inspire the side-channel research community to discover new vulnerabilities, and more importantly, to fortify applications against them.

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