Open AccessArea and energy‐efficient physically unclonable function based on k‐winners‐take‐all
Author(s) -
Dhar T.,
Trivedi A.R.
Publication year - 2016
Publication title -
electronics letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.375
H-Index - 146
eISSN - 1350-911X
pISSN - 0013-5194
DOI - 10.1049/el.2016.1991
Subject(s) - physical unclonable function , static random access memory , key generation , key (lock) , transistor , voltage , energy (signal processing) , computer science , function (biology) , electronic engineering , embedded system , electrical engineering , engineering , computer hardware , algorithm , cryptography , physics , computer security , quantum mechanics , evolutionary biology , biology
An area and energy‐efficient physically unclonable function (PUF) based on k‐winners‐take‐all (k‐WTA) is presented. Competitive computing dynamics of k‐WTA reduces key‐generation cell in WTA‐based PUF to a single transistor, necessary for area/energy‐constrained applications. Differential key generation in the PUF generates stable keys at varying temperature and supply voltage variations. Array design considerations for WTA‐PUF are studied. Performance of k‐WTA‐based PUF is compared against the static random access memory (SRAM)‐based PUF.