We propose the first verifier-local revocation scheme for privacy-enhancing attribute-based
credentials (PABCs) that is practically usable in large-scale applications, such as national …

We introduce delegatable functional signatures (DFS) which support the delegation of
signing capabilities to another party, called the evaluator, with respect to a functionality F F …

Carpooling, as an effective and eco-friendly travel mode, becomes a kind of public
spontaneous behavior with multiple travellers sharing a vehicle to reduce individuals' travel …

Federated identity providers, eg, Facebook and PayPal, offer a convenient means for
authenticating users to third-party applications. Unfortunately such cross-site authentications …

Security and privacy often seem to be at odds with one another. In this paper, we revisit the
design principle of revocable privacy which guides the creation of systems that offer …

Mobile crowd sensing (MCS) represents one of the most promising approaches for
improving life quality of individuals with sensing and computing devices. MCS is playing a …

Vehicular ad-hoc networks have attracted comprehensive consideration in last few years for
their assurance in enhancing driving safety and revolutionizing the transportation systems …

Decentralization is typically viewed as empowering to users and a cruicial component of one
possible future of the Internet, 1 yet there does not exist a foundational treatment of …

An Anonymizing network provide anonymous access to their participants through hiding
their IP address. In anonymizing network users share their data with another network …

In service providing systems, user authentication is required for different purposes such as
billing, restricting unauthorized access, etc., To protect the privacy of users, their real …