Blockchain-enabled Privacy-preserving Contact Tracing for COVID-19 Pandemic

Computer Science and Engineering

Abstract— In order to stop the illness from spreading further, the COVID-19 pandemic outbreak has highlighted the critical need for efficient contact tracking technologies using mobile phone applications. However, because of the sensitive nature of contact tracing, privacy concerns raised by the public have created a barrier to the current solutions, which is having a big impact on how widely contact tracing apps are being used. In order to desensitise the user ID and location information, we propose to employ blockchain technology to bridge the gap between the user/patient and authorised solvers in our work, which presents a privacy-preserving contact tracing system enabled by blockchain technology. Our technique exhibits superior security and privacy when compared to recently suggested contract tracing systems. It also has the added benefits of being battery-friendly and internationally accessible. The necessary resource is shown to be viable from both the server and cell phone viewpoints. By addressing public privacy concerns, the suggested approach can offer a timely framework that will enable government agencies, businesses, software developers, and researchers to quickly create and implement efficient digital contact tracking tools in order to quickly contain the COVID-19 epidemic. In the meanwhile, this project's open initiative enables global cooperation and integrates current tracking and location technologies using blockchain technology.

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