Kavach: Lightweight masking techniques for polynomial arithmetic in lattice-based cryptography

ePrint Report: Kavach: Lightweight masking techniques for polynomial arithmetic in lattice-based cryptography

Aikata Aikata, Andrea Basso, Gaetan Cassiers, Ahmet Can Mert, Sujoy Sinha Roy

Lattice-based cryptography has laid the foundation of various modern-day cryptosystems that cater to several applications, including post-quantum cryptography. For structured lattice-based schemes, polynomial arithmetic is a fundamental part. In several instances, the performance optimizations come from implementing compact multipliers due to the small range of the secret polynomial coefficients. However, this optimization does not easily translate …

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