A privacy-preserving blockchain-based tracing model for virus-infected people in cloud

作者：

Highlights：

• A privacy-preserving tracing scheme of virus-infected people is proposed.

• A double protection mechanism for private data is proposed.

• Different perturbation methods are chosen by trust level to better data availability.

• An outsourcing algorithm is developed to reduce equipment pressure.

• A new type of IoT data management architecture is proposed.

摘要

•A privacy-preserving tracing scheme of virus-infected people is proposed.•A double protection mechanism for private data is proposed.•Different perturbation methods are chosen by trust level to better data availability.•An outsourcing algorithm is developed to reduce equipment pressure.•A new type of IoT data management architecture is proposed.

论文关键词：Blockchain,Smart contract,Local differential privacy,ABE,Outsourcing encryption,Outsourcing decryption

论文评审过程：Received 26 January 2022, Revised 11 August 2022, Accepted 12 August 2022, Available online 18 August 2022, Version of Record 26 August 2022.

论文官网地址：https://doi.org/10.1016/j.eswa.2022.118545