Efficient and Privacy-Preserving of COVID-19 Contact Tracing Scheme

摘要

The world has seen many pandemics in the past. COVID-19, SARS, H1N1, and Ebola are some of them. When these diseases break out, they spread very quickly, and tracing the source becomes a challenge to control the disease. In this paper, under the premise of not divulging the private information for infected persons and their potential contacts, we have proposed a privacy-preserving contact tracking schemes of infectious persons. In these schemes, if a user is diagnosed with COVID-19, potential contacts with the virus can be traced, so that Healthy Authority(HA) can better control the spread of the virus. The process is private and does not disclose any unnecessary information. In addition, we evaluate our schemes and compare them with existing similar schemes. Our scheme achieving all security goals and having lower communication and computation costs.