A system for multi-level authentication with physically unclonable functions
Konigsmark, Sven Tenzing Choden
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https://hdl.handle.net/2142/46931
Description
Title
A system for multi-level authentication with physically unclonable functions
Author(s)
Konigsmark, Sven Tenzing Choden
Issue Date
2014-01-16T18:26:47Z
Director of Research (if dissertation) or Advisor (if thesis)
Chen, Deming
Wong, Martin D.F.
Department of Study
Electrical & Computer Eng
Discipline
Electrical & Computer Engr
Degree Granting Institution
University of Illinois at Urbana-Champaign
Degree Name
M.S.
Degree Level
Thesis
Keyword(s)
Physically Unclonable Functions
Hardware Security
Abstract
We analyze deficiencies in existing Physically Unclonable Function (PUF)
systems and protocols, and propose a new system of PUFs (SoP) that is numerically
secure under extended attacker privileges and attack scenarios. Our proposed
system uses a multi-level authentication scheme and employs different designs of
PUF to achieve high security with low computational complexity and small
footprint.
By employing role-specific PUF designs, SoP reduces the area over existing
PUF-based authentication solutions by more than 68%. The key principles are: (i)
reduce assumptions required to guarantee numerical security to a minimum set of
practical assumptions; (ii) combine different PUF types to optimize security while
minimizing resource requirements; (iii) provide multiple layers of authentication as
a force-multiplier for the trusted party.
This multi-level protocol resolves security deficiencies with regard to manin-the-middle attacks and challenge-response-pair (CRP) storage issues in
conventional PUF protocols. Furthermore, SoP allows recognition and sealing of
security breaches. A mathematical formulation of the attack complexity and
statistical evaluation based on simulated PUF data show the strength of this new
protocol.
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