[Resource Topic] 2022/1681: Backdooring Post-Quantum Cryptography: Kleptographic Attacks on Lattice-based KEMs

Welcome to the resource topic for 2022/1681

Title:
Backdooring Post-Quantum Cryptography: Kleptographic Attacks on Lattice-based KEMs

Authors: Prasanna Ravi, Shivam Bhasin, Anupam Chattopadhyay, Aikata Aikata, Sujoy Sinha Roy

Abstract:

Post-quantum Cryptography (PQC) has reached the verge of standardization competition, with Kyber as a winning candidate. In this work, we demonstrate practical backdoor insertion in Kyber through kleptrography. The backdoor can be inserted using classical techniques like ECDH or post-quantum Classic Mceliece. The inserted backdoor targets the key generation procedure where generated output public keys subliminally leak information about the secret key to the owner of the backdoor. We demonstrate first practical instantiations of such attack at the protocol level by validating it on TLS 1.3.

ePrint: https://eprint.iacr.org/2022/1681

See all topics related to this paper.

Feel free to post resources that are related to this paper below.

Example resources include: implementations, explanation materials, talks, slides, links to previous discussions on other websites.

For more information, see the rules for Resource Topics .