An Encryption Based Privacy Preservation Crowd Sensing Scheme with Result Verified

To solve the privacy violation problem of task servers and workers in the process of crowd sensing, as well as the privacy protection problem in the verification process of sensing feedback results, a result verified privacy preservation crowd sensing scheme was proposed, using edge nodes and encryption technology, based on proxy re-encryption and homomorphic encryption algorithms. This scheme achieved privacy protection transmission and verification of sensing results through two rounds of encrypted transmission of sensing results.Then in this paper, the detailed process of privacy preservation crowd sensing was given, and the security analysis for every entity was also used to discuss the confidentiality of task and results. At last, several groups of experimental results with brief analyses were given, and used to further demonstrate the superiority of the proposed scheme.