The growth of content delivery networks (CDNs) has engendered centralized control over
the serving of internet content. An unwanted by-product of this growth is that CDNs are fast …

Insufficient parking space and traffic congestion are important usual suspects in our urban
life. Organisation and managing available parking spaces have raised a lot of awareness …

Current day software development relies heavily on the use of service architectures and on
agile iterative development methods to design, implement, and deploy systems. These …

Digital Payments are growing by leaps and bounds across the world, owing to the large
scale adoption of smart phones that are replacing the traditional wallets. As a technology in …

Modern public transportation companies often record large amounts of information. Privacy
can be safeguarded by discarding nominal tickets, or introducing anonymization techniques …

Users accessing services are often required to provide personal information, for example,
age, profession and location, in order to satisfy access polices. This personal information is …

Modern trains rely on balises (communication beacons) located on the track to provide
location information as they traverse a rail network. Balises, such as those conforming to the …

A number of mobile payment studies have been proposed in recently years. Most of the
schemes are largely focused on transaction security, not on users' privacy. In this paper, we …

The public transport ticketing systems are undergoing significant changes in recent years.
The tickets can now be issued and presented in digital form, significantly improving the user …

We propose a new lightweight cryptographic payment scheme for transit systems, called
P4R (Privacy-Preserving Pre-Payments with Refunds), which is suitable for low-cost user …