||Djiby Sow (University Cheikh Anta Diop of Dakar)
||A new IND-CCA2 NTRU-like Cryptosystem for post-quantum cryptography with security proof in the standard model
||In this talk, a new IND-CCA2 NTRU-like Cryptosystem is presented.
First, we introduce a new hard problem, namely the Decisional Ring Bounded
Distance Decoding problem (DR-BDD), and after we propose an NTRU-like
encryption scheme over Ideal-lattices (with non-sparse polynomials) which is
IND-CPA secure in the standard model relatively to DR-BDD. This last scheme
is the same as in NTRU Prime, which is known to block the classical attacks that
exploit special structures of the classical rings used in R-LWE based cryptosystems,
namely rings of cyclotomic number fields.
||Djiby SOW is a full professor in the department of Mathematics and Informatics
of the University Cheikh Anta Diop of Dakar. He is one of the co-founder of the
first educational program oriented towards cryptography and cybersecurity in
West Africa. In addition to his duties as a Professor, he is the responsible of the
Master in Data Transmission and Information Security. He is also the president of
the Senegalese Association for Information Security where he is leading the effort
to develop a national cybersecurity strategy by advising the respective state authorities
among other activities. His research interest revolve around all the facets of cryptography.