TY - JOUR
T1 - Applications of high-capacity crossbar memories in cryptography
AU - Rührmair, Ulrich
AU - Jaeger, Christian
AU - Bator, Matthias
AU - Stutzmann, Martin
AU - Lugli, Paolo
AU - Csaba, Gyrgy
PY - 2011/5
Y1 - 2011/5
N2 - This paper proposes a new approach for the construction of highly secure physical unclonable functions (PUFs). Instead of using systems with medium information content and high readout rates, we suggest to maximize the information content of the PUF while strongly reducing its readout frequency. We show that special, passive crossbar arrays with a very large random information content and inherently limited readout speed are suited to implement our approach. They can conceal sensitive information over long time periods and can be made secure against invasive physical attacks. To support our feasibility study, circuit-level simulations and experimental data are presented. Our design allows the first PUFs that are secure against computationally unrestricted adversaries, and which remain so in the face of weeks or even years of uninterrupted adversarial access. We term the new design principle a SHIC PUF, where the acronym SHIC stands for super high information content.
AB - This paper proposes a new approach for the construction of highly secure physical unclonable functions (PUFs). Instead of using systems with medium information content and high readout rates, we suggest to maximize the information content of the PUF while strongly reducing its readout frequency. We show that special, passive crossbar arrays with a very large random information content and inherently limited readout speed are suited to implement our approach. They can conceal sensitive information over long time periods and can be made secure against invasive physical attacks. To support our feasibility study, circuit-level simulations and experimental data are presented. Our design allows the first PUFs that are secure against computationally unrestricted adversaries, and which remain so in the face of weeks or even years of uninterrupted adversarial access. We term the new design principle a SHIC PUF, where the acronym SHIC stands for super high information content.
KW - Crossbar memories
KW - nonvolatile memories
KW - physical cryptography
KW - physical unclonable function (PUF)
UR - http://www.scopus.com/inward/record.url?scp=79955919867&partnerID=8YFLogxK
U2 - 10.1109/TNANO.2010.2049367
DO - 10.1109/TNANO.2010.2049367
M3 - Article
AN - SCOPUS:79955919867
SN - 1536-125X
VL - 10
SP - 489
EP - 498
JO - IEEE Transactions on Nanotechnology
JF - IEEE Transactions on Nanotechnology
IS - 3
M1 - 5458083
ER -