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 …

As we move into a new decade, the global world of Intelligent Infrastructure (II) services
integrated into the Internet of Things (IoT) are at the forefront of technological advancements …

The world has seen an influx of connected devices through both smart devices and smart
cities, paving the path forward for the Internet of Things (IoT). These emerging intelligent …

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 …

Autonomy has been touted to be a major asset of Cyber-Physical Systems (CPS) and its
components. By intertwining non-physical and physical processes they seamlessly integrate …

Abstract We provide a $\Sigma $-protocol for proving that two values committed in different
groups are equal. We study our protocol in Lyubashevsky's framework" Fiat-Shamir with …

Modern attribute-based anonymous credential (ABC) systems benefit from special
encodings that yield expressive and highly efficient show proofs on logical statements. The …

We introduce a new notion called accountable attribute-based authentication with fine-
grained access control (AccABA), which achieves (i) fine-grained access control that …

Mobile tracking has long been a privacy problem, where the geographic data and
timestamps gathered by mobile network operators (MNOs) are used to track the locations …

In a data access control system oriented toward the cloud storage environment, a data
owner defines attribute-based access control policies for data files to realize fine-grained …