A Blockchain-Based Privacy Preservation Scheme in Mobile Medical

Abstract

With the rapid development of mobile medical, how to establish an effective security mechanism to protect data security and privacy while users enjoy medical services has become an urgent problem to be solved. Aiming at the easy leakage of privacy in mobile medical terminals and untrustworthy data, we make use of a role-separated mechanism to generate trusted anonymous certificates. We propose a lightweight identity authentication scheme and adopt blockchain to protect the security of medical data. Meanwhile, in view of the problems of transparency and visibility of blockchain information, we adapt the searchable encryption algorithm to realize ciphertext processing in the whole life cycle. Experiments show that our scheme can reduce the cost of computation on the basis of ensuring traffic. In the process of dynamic updating of ciphertext keywords, except the keyword identifier, less information is leaked to the server, which protects privacy of users.

A quantum trust and consultative transaction-based blockchain cybersecurity model for healthcare systems

“…Immutability 3. Secrecy 27 , 28 Privacy issues and attacks Data encryption and access control mechanisms 1. Privacy 2.…”

Toward Privacy Preservation Using Clustering Based Anonymization: Recent Advances and Future Research Outlook

“…Li et al [336] discussed a provably secure method for privacy preservation in real-time IoT applications. Wen et al [337] discussed a mobile medical, a system that ensures privacy and security of sensitive data while users can enjoy multiple medical services. Mobile medical makes use of identity authentication and blockchain technology in order to restrict information sharing with the server, and only minimal information is shared with the server.…”

“…Recently, many fog/edge-based applications have been developed to avoid any delay in real-time monitoring applications that collect and process real-time data. Sarrab et al [337] data based on criticality, and only some data is moved to the cloud environments. The h-IoT framework can restrict privacy breaches and can avoid delays in time-critical realtime applications.…”