Background Blockchain has the potential to disrupt the current modes of patient data access,
accumulation, contribution, exchange, and control. Using interoperability standards, smart …

This paper analyzes the secure access delegation problem, which occurs naturally in the
cloud, and postulate that Proxy Re-Encryption is a feasible cryptographic solution, both from …

This paper discusses a Digital Twin demonstrator for privacy enhancement in the automotive
industry. Here, the Digital Twin demonstrator is presented as a method for the design and …

Identity management is an almost indispensable component of today's organizations and
companies, as it plays a key role in authentication and access control; however, at the same …

Cloud computing has become the focus of attention in the computing industry. However,
security concerns still impede the widespread adoption of this technology. Most enterprises …

We introduce the notion of homomorphic proxy re-authenticators, a tool that adds security
and verifiability guarantees to multi-user data aggregation scenarios. It allows distinct …

This paper describes an approach to overcome the interoperability challenges related to
identity management systems supporting cross-collaboration between heterogeneous …

Unique identification and secure authentication are essential processes in various areas of
application, eg in e-Government, e-Health, or e-Business. During the past years several …

The management of identities on the Internet has evolved from the traditional approach
(where each service provider stores and manages identities) to a federated identity …

Cloud computing is a shared pool area of computing resources, which might be accessed
from anywhere and simply by just about anyone. The cloud's invaluable features, such as …