Blockchain based searchable encryption for electronic health record sharing

By Lanxiang Chen, Wai-Kong Lee, Chin-chen Chang, Kim-Kwang Raymond Choo, Nan Zhang. Future generations computer systems, 2019

406 citations recorded by the source corpus.

Abstract Data leakage in electronic health records (EHRs) could result in the compromise of patient privacy (e.g. medical conditions). Generally most data in EHRs remain unchanged once they are uploaded to the system; thus, blockchain can be potentially used to facilitate the sharing of such data. Different participating medical organizations and individuals (e.g. medical practitioners, hospitals, medical labs and insurance companies) can then access EHRs stored on the blockchain with a higher level of confidence. In this paper, a blockchain based searchable encryption scheme for EHRs is proposed. The index for EHRs is constructed through complex logic expressions and stored in the blockchain, so that a data user can utilize the expressions to search the index. As only the index is migrated to the blockchain to facilitate propagation, the data owners have full control over who can see their EHRs data. The use of blockchain technology ensures the integrity, anti-tampering, and traceability of EHRs’ index. Finally, the performance of the proposed scheme is evaluated from two aspects, namely in terms of the overhead for extracting the document IDs from EHRs and the overhead associated with conducting transactions on smart contract in Ethereum.

Subfields: Artificial Intelligence, Information Systems

View Paper: https://www.semanticscholar.org/paper/2d9e86d42ec4a56502f8a722a4866b9ea4ecc505

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Artificial Intelligence

In Information Systems

Citations in the corpus

All One Needs to Know about Metaverse: A Complete Survey on Technological Singularity, Virtual Ecosystem, and Research Agenda (2021, background): “Several works [692]–[694] propose the use of blockchain systems to protect the digital twins in the metaverse.”
Evaluating the factors that influence blockchain adoption in the freight logistics industry (2020, background): “…as a shared digital ledger, which is maintained by a group of nodes that are not fully trusted by each other (Huimin et al, 2019) and allows one to build upon cryptographic algorithms to ensure data integrity, standardized auditing, and some formalized contracts for data access (Chen et al, 2019).”
Blockchain Meets Cloud Computing: A Survey (2020, background): “Chen et al. [106] accomplished a study on strengthening encrypted keyword search through blockchain.”
Digital Twin: Values, Challenges and Enablers From a Modeling Perspective (2019, background): “The authors in [109] propose a blockchain based searchable encryption for electronic health record sharing.”