Marc Joye

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Functional circuits: A new paradigm for fully homomorphic encryption


Fully Homomorphic Encryption (i.e., the ability to work over encrypted data without ever decrypting) has long been considered as the holy grail of cryptography. First shown to be realisable in 2009 in a breakthrough result by Gentry, fully homomorphic encryption has since been an active research topic. This talk introduces the paradigm of functional circuits as a new way to work over encrypted data. Applications to private machine learning are also discussed.


Marc Joye received his Ph.D. degree in applied sciences (cryptography) from the Université Catholique de Louvain, Belgium, in 1997. In 1998 and 1999, he was a post-doctoral fellow of the National Science Council, Republic of China. From 1999 to 2006, he was with the Card Security Group, Gemplus (now Gemalto), France. From 2006 to 2016, he was with the Security Labs, Technicolor, France (formerly Thomson R&D) and USA. From 2016 o 2018, he was with NXP Semiconductors, USA. He is now with ZAMA. His research interests include cryptography, cryptanalysis, information security, confidentiality, privacy, authentication, and computational number theory. He is a member of the IACR and co-founder of the UCL Crypto Group.