Tancrède Lepoint
he/him
cryptographer
at Apple
director (2018-2023)
of the IACR
co-editor (since 2016)
of the Cryptology ePrint
Archive
home • publications & preprints • phd
About me
Tancrède Lepoint is a cryptography engineer at Apple. He is also a director of the International Association for Cryptologic Research (2018-2023) and co-editor of the Cryptology ePrint Archive. Previously, he was a research scientist in the Private Computing team at Google, and a computer scientist at SRI International.
Tancrède drove the cryptographic deployment of the Exposure Notifications Privacy-preserving Analytics within Google, a multiparty computation system based on the private measurement system Prio. He also designed the verification flow for Exposure Notifications in the US. He worked on lightweigth anonymous credentials (trust tokens) and specializes in homomorphic encryption. Tancrède is also a coauthor of two post-quantum cryptographic primitives (CRYSTALS-Kyber and CRYSTALS-Dilithium), which are 2 of the 7 finalists considered for standardization by NIST.
His research interests include cryptography and security, privacy-enhancing technologies, homomorphic encryption, cryptographic protocols and implementation.
He holds a Ph.D. in Computer Science from École Normale Supérieure and University of Luxembourg.
Other news
- Aug. 2021: Our preprint Private Join and Compute from PIR with Default has been accepted for publication at Asiacrypt 2021, and On the (in)security of ROS has received the best paper award at Eurocrypt 2021.
- Jun. 2021: Our preprint Advances and Open Problems in Federated Learning is now published in Foundations and Trends in Machine Learning, Volume 14.
- May 2021: Our preprint Communication-Computation Trade-offs in PIR has been accepted for publication at Usenix 2021.
- Mar. 2021: I am now working at Apple Inc.!
- Feb. 2021: Our paper On the (in)security of ROS has been accepted for publication at Eurocrypt 2021.
- Nov. 2020: Thank you for electing me as Director of the IACR for 2021-2023!
Program committees
- 2022: USENIX SECURITY.
- 2021: CHES, USENIX SECURITY, IEEE S&P, CT-RSA.
- 2020: WAHC (chair), CHES, USENIX SECURITY, EUROCRYPT, CT-RSA.
- 2019: SSR, WAHC (chair), USENIX SECURITY, PKC, CT-RSA.
- 2018: SSR, WAHC, SCN, CHES, CRYPTO, AFRICACRYPT, COSADE, PQCRYPTO, CT-RSA.
- 2017: INDOCRYPT, CANS, CHES, PQCRYPTO, EUROCRYPT, WAHC, CT-RSA.
- 2016: CHES, ICITS, WAHC.
- 2015: CANS, SECICT, ACNS, ACISP, WAHC.