Paper 2015/970

Multilinear Maps over the Integers Using Modulus Switching

Gu Chunsheng

Abstract

After CLT13 of multilinear map over the integers was broken by Cheon, Han, Lee, Ryu and Stehle using zeroizing attack, a new variant CLT15 of CLT13 was proposed by Coron, Lepoint and Tibouchi by constructing new zero-testing parameter. Very recently, CLT15 was broken independently by Cheon, Lee and Ryu, and Minaud and Fouque using an extension of Cheon et al.’s attack. To immune CLT13 against zeroizing attack, we present a new construction of multilinear map over the integers using switching modulus technique. The security of our construction depends upon new hardness assumption.

Metadata
Available format(s)
-- withdrawn --
Publication info
Preprint. MINOR revision.
Keywords
Multilinear mapsswitching moduluszeroizing attackMPKE
Contact author(s)
chunsheng_gu @ 163 com
History
2015-12-12: withdrawn
2015-10-09: received
See all versions
Short URL
https://ia.cr/2015/970
License
Creative Commons Attribution
CC BY
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