Mehdi Tibouchi
Nippon Telegraph and Telephone
157 Papers
940 Citations
Mehdi Tibouchi is an academic researcher from Nippon Telegraph and Telephone. The author has contributed to research in topics: Computer science & Elliptic curve. The author has an hindex of 30, co-authored 139 publications. Previous affiliations of Mehdi Tibouchi include École Normale Supérieure & Kyoto University.
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Papers
Fully homomorphic encryption over the integers with shorter public keys
Jean-Sébastien Coron,Avradip Mandal,David Naccache,Mehdi Tibouchi +3 more
- 14 Aug 2011
TL;DR: It is shown that fully homomorphic encryption can be implemented using simple arithmetic operations, and some optimizations from the recent Gentry-Halevi implementation of Gentry's scheme are obtained, roughly the same level of efficiency.
Practical Multilinear Maps over the Integers
Jean-Sébastien Coron,Tancrède Lepoint,Mehdi Tibouchi +2 more
- 18 Aug 2013
TL;DR: A different construction that works over the integers instead of ideal lattices, similar to the DGHV fully homomorphic encryption scheme, and a different technique for proving the full randomization of encodings, using the classical leftover hash lemma over a quotient lattice.
Batch Fully Homomorphic Encryption over the Integers
Jung Hee Cheon,Jean-Sébastien Coron,Jinsu Kim,Moon Sung Lee,Tancrède Lepoint,Mehdi Tibouchi,Aaram Yun +6 more
- 26 May 2013
TL;DR: The fully homomorphic encryption scheme over the integers of van Dijk et al.(DGHV) is extended to a scheme that supports encrypting and homomorphically processing a vector of plaintexts as a single ciphertext.
•Posted Content
Public Key Compression and Modulus Switching for Fully Homomorphic Encryption over the Integers
Jean-Sébastien Coron,David Naccache,Mehdi Tibouchi +2 more
- 01 Jan 2012
TL;DR: In this article, van Dijk, Gentry, Halevi and Vaikuntanathan proposed a scheme with a 10.1 MB public key instead of 802 MB using similar parameters as in [8].
Zeroizing Without Low-Level Zeroes: New MMAP Attacks and their Limitations
Jean-Sébastien Coron,Craig Gentry,Shai Halevi,Tancrède Lepoint,Hemanta K. Maji,Hemanta K. Maji,Eric Miles,Mariana Raykova,Amit Sahai,Mehdi Tibouchi +9 more
- 16 Aug 2015
TL;DR: Cheon, Han, Lee, Ryu and Stehle as mentioned in this paper extended the zeroizing attacks of Eurocrypt 2015 on multilinear maps to settings where no encodings of zero below the maximal level are available.