A Novel CCA Attack for NTRU+ KEM

ePrint Report: A Novel CCA Attack for NTRU+ KEM

Joohee Lee, Minju Lee, Jaehui Park

The KpqC competition has begun in 2022, that aims to standardize Post-Quantum Cryptography (PQC) in the Republic of Korea. Among the 16 submissions of the KpqC competition, the lattice-based schemes exhibit the most promising and balanced features in performance. In this paper, we propose an effective classical CCA attack to recover the transmitted session key for NTRU+, one of the lattice-based Key Encapsulation Mechanisms (KEM) …

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