Tancrède Lepoint

applied scientist at AWS

director (2018-2023)
of the IACR

co-editor (since 2016)
of the Cryptology ePrint Archive

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About me

Tancrède Lepoint works as Applied Scientist in the AWS Privacy Engineering team. He is a cryptographer, specialized in privacy-enhancing technologies, lattice-based cryptography, post-quantum cryptography, homomorphic encryption, and differential privacy.

He is a director of the International Association for Cryptologic Research (2018-2023) and co-editor of the Cryptology ePrint Archive since 2016. He worked at Apple (2021-2022), Google (2018-2021), SRI International (2016-2018), and CryptoExperts (2011-2016). He holds a Ph.D. in Computer Science from École Normale Supérieure and University of Luxembourg.

Tancrède co-authored the two post-quantum cryptographic primitives (CRYSTALS-Kyber and CRYSTALS-Dilithium) selected for standardization by NIST. He drove the cryptographic deployment of the Exposure Notifications Privacy-preserving Analytics within Google, a differentially-private multiparty computation system based on the private measurement system Prio. He also designed the multi-server verification flow for Exposure Notifications in the US. He worked on lightweigth anonymous credentials (Privacy-Pass, trust tokens) and specializes in homomorphic encryption.

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