Lingbo Wei

TL;DR: In this paper, the authors identify fundamental tradeoffs among utility, privacy, and efficiency in mobile crowdsourcing and propose a flexible optimization framework that can be adjusted to any desired tradeoff point with joint efforts of MC platform and workers.

TL;DR: This work proposes a scheme to address the deduplication of encrypted data efficiently and securely with the help of ensuring the ownership of the shared file, encrypting data using keys at user's will and realizing the anonymous store through the digital credential.

TL;DR: The unmodified Bitcoin blockchain is used as the powerful platform to manage and determine ownership of access credentials in a peer-to-peer fashion and a completely decentralized Bitcoin mixing protocol is introduced that allows users to anonymously exchange their access credentials offline.

TL;DR: A scheme to enhance the privacy of the drivers using anonymous credential technique and Trusted Platform Module (TPM) to achieve the anonymity of vehicles such that drivers can anonymously and unlinkably recharge their vehicles.

TL;DR: This paper proposes a secure and privacy-preserving payment system for EVs to charge their batteries with reservation service that can not only protect the privacy of users in order that the charging stations cannot know the identities of users, but also provide a lost-protection service to users so that users can find their stolen vehicles with the help of a trusted authorities.