Personal data are often collected and processed in a decentralized fashion, within different
contexts. For instance, with the emergence of distributed applications, several providers are …

Anonymous credentials (ACs) are a powerful cryptographic tool for the secure use of digital
services, when simultaneously aiming for strong privacy guarantees of users combined with …

Federated identity management is a method that facilitates management of identity
processes and policies among the collaborating entities without a centralized control …

In this paper we discuss an efficient implementation for selective disclosure of attribute-
based credentials on smart cards. In this context we concentrate on the implementation of …

Digital and paper-based authentication are the two predominant mechanisms that have
been deployed in the real world to authenticate end-users. When verification of a digital …

Cryptographic anonymous credential schemes allow users to prove their personal attributes,
such as age, nationality, or the validity of a ticket or a pre-paid pass, while preserving their …

The Internet of Things (IoT) is a ubiquitous system that incorporates not only the current
Internet of computers, but also smart objects and sensors. IoT technologies often rely on …

Traditionally, a country's electoral system requires the voter to vote at a specific day and
place, which conflicts with the mobility usually seen in modern live styles. Thus, the …

Smart cities involve the provision of advanced services for road traffic users. Vehicular ad
hoc networks (VANETs) are a promising communication technology in this regard …

Identity systems today link users to all of their actions and serve as centralized points of
control and data collection. NEXTLEAP proposes an alternative decentralized and privacy …