A Secret Key Generation Scheme for Internet of Things using Ternary-States ReRAM-based Physical Unclonable Functions

Ashwija Reddy Korenda, Fatemeh Afghah, Bertrand Cambou

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

17 Scopus citations

Abstract

Some of the main challenges towards utilizing conventional cryptographic techniques in Internet of Things (IoT) include the need for generating secret keys for such a large-scale network, distributing the generated keys to all the devices, key storage as well as the vulnerability to security attacks when an adversary gets physical access to the devices. In this paper, a novel secret key generation method is proposed for IoTs that utilize the intrinsic randomness embedded in the devices' memories introduced in the manufacturing process. A fuzzy extractor structure using serially concatenated BCHPolar codes is proposed to generate reproducible keys from a ReRAM-based ternary-state Physical Unclonable Functions (PUFs) for device authentication and secret key generation. The main concern in deploying PUF-based key generation methods is the leakage of information about the secret keys from the publicly available helper data. The fuzzy extractor proposed in this paper ensures much less mutual information between the generated keys and the helper data. The experimental results show that our proposed scheme is capable of generating notably stronger keys compared to existing techniques, while utilizing a significantly lower number of helper data bits. The failure probability when a low complex Successive Cancellation decoder is implemented in the proposed fuzzy extractor structure is 10-8which was further increased to 10-10 when a complex iterative belief propagation decoder was used.1 1This project is partially supported by Arizona Board of Regents under Grant # 1003330.

Original languageEnglish (US)
Title of host publication2018 14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages1261-1266
Number of pages6
ISBN (Print)9781538620700
DOIs
StatePublished - Aug 28 2018
Event14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018 - Limassol, Cyprus
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018

Conference

Conference14th International Wireless Communications and Mobile Computing Conference, IWCMC 2018
Country/TerritoryCyprus
CityLimassol
Period6/25/186/29/18

Keywords

  • Fuzzy Extractor
  • Polar Codes
  • PUFs
  • ReRAM
  • Strong cryptographic key

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Energy Engineering and Power Technology
  • Control and Optimization

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