@inproceedings{a01e9d438e694c488fb83d1ea2d3c0a0,
title = "A DRAM based physical unclonable function capable of generating >1032 Challenge Response Pairs per 1Kbit array for secure chip authentication",
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.",
author = "Qianying Tang and Chen Zhou and Woong Choi and Gyuseong Kang and Jongsun Park and Parhi, {Keshab K.} and Kim, {Chris H.}",
year = "2017",
month = jul,
day = "26",
doi = "10.1109/CICC.2017.7993610",
language = "English (US)",
series = "Proceedings of the Custom Integrated Circuits Conference",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
booktitle = "38th Annual Custom Integrated Circuits Conference",
note = "38th Annual Custom Integrated Circuits Conference, CICC 2017 ; Conference date: 30-04-2017 Through 03-05-2017",
}