On Error Correction for Physical Unclonable Functions
Conference: SCC 2015 - 10th International ITG Conference on Systems, Communications and Coding
02/02/2015 - 02/05/2015 at Hamburg, Germany
Pages: 6Language: englishTyp: PDFPersonal VDE Members are entitled to a 10% discount on this title
Puchinger, Sven; Mueelich, Sven; Bossert, Martin (Institute of Communications Engineering, University of Ulm, Germany)
Hiller, Matthias; Sigl, Georg (Institute for Security in Information Technology, Technische Universität München, Germany)
Physical Unclonable Functions evaluate manufacturing variations to generate secure cryptographic keys for embedded systems without secure key storage. It is explained how methods from coding theory are applied in order to ensure reliable key reproduction. We show how better results can be obtained using code classes and decoding principles not used for this scenario before. These methods are exemplified by specific code constructions which improve existing codes with respect to error probability, decoding complexity and codeword length.