A Closer Look at the Multilinear Cryptography using Nilpotent Groups
This paper is an incremental contribution to the field of cryptography, specifically for researchers and practitioners working with multilinear maps and group-based key-exchange protocols, by correcting misinterpretations of their security.
This paper re-examines two multiparty key-exchange protocols that utilize nilpotent groups, which were previously introduced as a generalization of multilinear maps. The authors address and correct several instances of proposed cryptanalysis against these protocols.
In a previous paper we generalized the definition of a multilinear map to arbitrary groups and introduced two multiparty key-exchange protocols using nilpotent groups. In this paper we have a closer look at the protocols and will address some incorrect cryptanalysis which have been proposed.