マス・フォア・インダストリ研究所

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(Batch) Fully Homomorphic Encryption over Integers for Non-Binary Message Spaces, and Related Combinatorial Problem on Polynomials


開催時期 2015-09-14 15:00~2015-09-14 16:30

場所 九州大学 伊都キャンパス 数理学研究教育棟/マス・フォア・インダストリ研究所B1 中会議室(122号)

受講対象  

講師 Koji Nuida (AIST, JST PRESTO Researcher)

Abstract:
Fully homomorphic encryption (FHE) is a special kind of encryption schemes which enable anyone to perform arbitrary operations over plaintexts in an encrypted form, without decrypting them.  In this talk, I present a recent result [EUROCRYPT 2015, with Kaoru Kurosawa (Ibaraki University)] on an extension of plaintext spaces for "FHE over integers" from binary to Q-ary for Q > 2.  Then I present another recent work on combinatorial descriptions of some polynomials closely related to FHE with non-binary plaintext spaces [joint work with Shizuo Kaji (Yamaguchi University), Toshiaki Maeno (Meijo University) and Yasuhide Numata (Shinshu University)]. (This talk will be given in Japanese but with English slides.)