Physically Unclonable Functions

Physical(ly) Unclonable Functions (PUFs) are a promising approach for achieving authentication and identification of individual integrated circuits. The first part of the talk will focus on outlining the core concept of PUFs and describing their desired qualities and also ways in which they can be compromised. Also, various kinds of PUFs (delay-based, arbiter, XOR-arbiter, SRAM and DRAM PUFs) will be presented to better demonstrate the types of variation that can be exploited to construct a PUF. Subsequently, the focus will shift to the adversary's point of view: recent research will be presented, which proves that XOR-arbiter PUFs are not as secure as was hoped. Lastly, we will take a glimpse at a new alternative, using microelectromechanical systems (MEMS) - based gyroscopes as PUFs.

Introductory papers

Silicon Physical Random Functions

Advanced papers

MEMS Gyroscopes as Physical Unclonable Functions

Lattice Basis Reduction Attack against Physically Unclonable Functions