Keyed Logic BIST for Trojan Detection in SoC
2014 (English)In: 2014 INTERNATIONAL SYMPOSIUM ON SYSTEM-ON-CHIP (SOC)Article in journal (Refereed) Published
As demonstrated by the recent attack on Intel's Ivy Bridge processor, the traditional Logic Built-In Self-Test (LBIST) methods do not provide adequate protection of SoC against malicious modifications known as hardware Trojans. In this paper, we introduce a simple but efficient countermeasure against hardware Trojans which exploits non-zero aliasing probability of LBIST. We propose to generate LBIST test patterns based on a configurable key which is decided and programed into the circuit after the manufacturing stage. Since the key and hence expected LBIST signature are unknown at the manufacturing stage, an attack based on selecting suitable values for the Trojan which result in the same signature as a fault-free circuit signature becomes infeasible.
Place, publisher, year, edition, pages
IEEE Press, 2014.
Electrical Engineering, Electronic Engineering, Information Engineering
IdentifiersURN: urn:nbn:se:kth:diva-171031ISI: 000356507900005ISBN: 978-1-4799-6890-9OAI: oai:DiVA.org:kth-171031DiVA: diva2:841309
16th International Symposium on System-on-Chip (SoC), OCT 28-29, 2014, Tampere, FINLAND
QC 201507132015-07-132015-07-132015-07-13Bibliographically approved