Title :
A soft decision helper data algorithm for SRAM PUFs
Author :
Maes, Roel ; Tuyls, Pim ; Verbauwhede, Ingrid
Author_Institution :
ESAT: SCD/COSIC & IBBT, K.U. Leuven, Leuven, Belgium
fDate :
June 28 2009-July 3 2009
Abstract :
In this paper we propose the idea of using soft decision information in helper data algorithms (HDA). We derive and verify a distribution for the responses of SRAM-based physically unclonable functions (PUFs) and show that soft decision information becomes available without loss in min-entropy of the fuzzy secret. This significantly improves the implementation overhead of using an SRAM PUF + HDA for cryptographic key generation compared to previous constructions.
Keywords :
SRAM chips; cryptography; entropy; fuzzy systems; logic design; SRAM; cryptographic key generation; fuzzy secret minentropy; physically unclonable functions; soft decision helper data algorithm; soft decision information; Biometrics; Coatings; Counterfeiting; Cryptography; Data mining; Hardware; Humans; Information security; Manufacturing; Random access memory;
Conference_Titel :
Information Theory, 2009. ISIT 2009. IEEE International Symposium on
Conference_Location :
Seoul
Print_ISBN :
978-1-4244-4312-3
Electronic_ISBN :
978-1-4244-4313-0
DOI :
10.1109/ISIT.2009.5205263
