@inproceedings{4bb8d04bb2914f8bac95639a391feb8a,
title = "COVERT-Blockchain: Privacy-Aware Contact Tracing for COVID-19 on a Distributed Ledger",
abstract = "Privacy preservation in contact tracing for COVID-19 is challenging as such applications tend to reveal users sensitive data which is shared together with their location. This paper proposes COVERT-Blockchain, a novel distributed ledger based platform for contact tracing without revealing users privacy where infected users only share their anonymized location traces on the Blockchain with a sliding window. To further reduce the chances of revealing the corresponding users' trajectories, in COVERT-Blockchain we employ an adaptive logging mechanism to store trajectory data for contact tracing only if the users stayed in a location for longer time duration. COVERT-Blockchain is evaluated for scalability and robustness in terms of overhead and delays in storing and retrieving data, results show it to be efficiently achieving contact tracing without privacy leakage.",
keywords = "Blockchain, Contact tracing, Privacy preservation",
author = "Khan, {Junaid Ahmed} and Bangalore, {Kavyashree Umesh} and Kaan Ozbay",
note = "Publisher Copyright: {\textcopyright} 2021 IEEE.; 3rd Conference on Blockchain Research and Applications for Innovative Networks and Services, BRAINS 2021 ; Conference date: 27-09-2021 Through 30-09-2021",
year = "2021",
month = sep,
day = "27",
doi = "10.1109/BRAINS52497.2021.9569816",
language = "English (US)",
series = "2021 3rd Conference on Blockchain Research and Applications for Innovative Networks and Services, BRAINS 2021",
publisher = "Institute of Electrical and Electronics Engineers Inc.",
pages = "31--32",
booktitle = "2021 3rd Conference on Blockchain Research and Applications for Innovative Networks and Services, BRAINS 2021",
}