Publication
Proof of Concept for IoT Device Authentication based on SRAM PUFs using ATMEGA 2560-MCU
Christoph Lipps; Weinand Andreas; Dennis Krummacker; Christoph Fischer; Hans Dieter Schotten
In: 1st International Conference on Data Intelligence and Security. International Conference on Data Intelligence and Security (ISDIS-2018), South Padre Island, Texas, USA, IEEE, 2018.
Abstract
The continuously rising amount of interconnected
devices leads to many new attack vectors and cyber security
threats. Secure and authentic communication is one of
the fundamental needs of progress and development of new
technologies. Therefore, new methods to prove the identity of
participants in communication processes must be developed.
We suggest different approaches for SRAM-based Physically
Unclonable Functions (PUFs) deployment, such as Internet of
Things (IoT)-device authentication or symmetric key cryptography
(SKC).
To obtain a reliable statement about the quality of the
derived PUF, we applied some commonly used metrics like the
entropy and correlated them with exterior influencing factors
such as the environmental temperature or the supply voltage.
We further show, that our approach and the examined
parameters, provide a secure and reliable communication based
on a confidential, resource efficient and low-cost authentication
method for IoT-devices which is enabled by reusing already
given components, such as ATMEGA 2560 MCU internal
SRAM-cells.