KyberSlash: Exploiting secret-dependent division timings in Kyber implementations

KyberSlash: Exploiting secret-dependent division timings in Kyber implementations

This paper presents KyberSlash1 and KyberSlash2 – two timing vulnerabilities in several implementations (including the official reference code) of the Kyber Post-Quantum Key Encapsulation Mechanism, recently standardized as ML-KEM. We demonstrate the exploitability of both KyberSlash1 and KyberSlas...

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Bibliographic Details
Main Authors: Daniel J. Bernstein, Karthikeyan Bhargavan, Shivam Bhasin, Anupam Chattopadhyay, Tee Kiah Chia, Matthias J. Kannwischer, Franziskus Kiefer, Thales B. Paiva, Prasanna Ravi, Goutam Tamvada
Format: Article
Language:English
Published: Ruhr-Universität Bochum 2025-03-01
Series:Transactions on Cryptographic Hardware and Embedded Systems
Subjects:
KyberSlash
PQC
Kyber
ML-KEM
Timing attacks
Division timing
Online Access:https://tches.iacr.org/index.php/TCHES/article/view/12046
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https://tches.iacr.org/index.php/TCHES/article/view/12046

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