A DRAM based physical unclonable function capable of generating >1032 Challenge Response Pairs per 1Kbit array for secure chip authentication

Qianying Tang, Chen Zhou, Woong Choi, Gyuseong Kang, Jongsun Park, Keshab K. Parhi, Chris H. Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

21 Scopus citations

Abstract

A DRAM based Physical Unclonable Function (PUF) utilizing the location of weak retention cells is demonstrated in 65nm CMOS. A new authentication scheme is proposed for the DRAM PUF where a random pattern is written to a small section of the DRAM and then retention failures are induced. To further increase the number of Challenge Response Pairs (CPRs), the data pattern including retention failures is transferred to a different memory location where additional retention failures are induced. This scheme enables more than 1032 unique CRPs from a 1Kbit array. To improve the stability of the PUF response, a zero-overhead repetitive write-back technique along with bit-masking was utilized. Voltage and temperature induced instabilities were mitigated by adjusting the read reference voltage and refresh time before each authentication operation. The proposed DRAM PUF has a bit cell area of 0.68μm2.

Original languageEnglish (US)
Title of host publication38th Annual Custom Integrated Circuits Conference
Subtitle of host publicationA Showcase for Integrated Circuit Design in Silicon Hills, CICC 2017
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781509051915
DOIs
StatePublished - Jul 26 2017
Event38th Annual Custom Integrated Circuits Conference, CICC 2017 - Austin, United States
Duration: Apr 30 2017May 3 2017

Publication series

NameProceedings of the Custom Integrated Circuits Conference
Volume2017-April
ISSN (Print)0886-5930

Other

Other38th Annual Custom Integrated Circuits Conference, CICC 2017
Country/TerritoryUnited States
CityAustin
Period4/30/175/3/17

Bibliographical note

Funding Information:
This work was supported in part by the National Science Foundation under Grant CNS-1441639, and in part by the Semiconductor Research Corporation under Contract 2014-TS-2560.

Publisher Copyright:
© 2017 IEEE.

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