We describe two simple, efficient and effective credential pseudonymous certificate systems, which also support anonymity without the need for a trusted third party. The second system provides cryptographic protection against the forgery and transfer of credentials. Both systems are based on a new paradigm, called self-blindable certificates. Such certificates can be constructed using the Weil ...

Purpose – As a value-added service to deliver important data over the internet with guaranteed receipt for each successful delivery, certified email has been discussed for years and a number of research papers appeared in the literature. This paper aims to present two optimized multi-party certified email protocols. Design/methodology/approach – Reviews two existing email protocols and provides...

We empirically analyze the competitive benefits of sharing economy services to understand why people participate in the sharing economy. We employ the social exchange theory to examine the participation intention in sharing over owning. We emphasize on the importance of service platform as a trusted third party and its influence on reducing the perceived risk of sharing economy. The research mo...

Because of the properties such as transparency, decentralization, irreversibility, nonrepudiation, etc., blockchain is not only a fundamental technology of great interest in its own right, but also has large potential when integrated into many other areas. In this paper, based on the blockchain technology, we propose a decentralized e-voting protocol, without the existence of a trusted third pa...

This paper develops solutions for efficient transfer of sporadic (event-triggered) data over a time-triggered communication channel. We present novel and efficient techniques for composite provisioning of the event triggered (ET) and time triggered (TT) paradigms to achieve both the predictability and flexibility inherent in TT and ET systems respectively. As a tangible demonstration of the tec...

A nonrepudiation protocol from party S to party R performs two tasks. First, the protocol enables party S to send to party R some text x along with sufficient evidence (that can convince a judge) that x was indeed sent by S. Second, the protocol enables party R to receive text x from S and to send to S sufficient evidence (that can convince a judge) that x was indeed received by R. Almost every...

Both B2B bartering as well as bartering between individuals is increasingly facilitated through online platforms. However, typically these platforms lack automation and tend to neglect the privacy of their users by leaking crucial information about trades. It is in this context that we devise the first privacypreserving protocol for automatically determining an actual trade between multiple par...

Logistics has been an important part of every economy and every business entity. The worldwide trend in globalization has led to many companies outsourcing their logistics function to Third-Party Logistics (3PL) companies, so as to focus on their core competencies. This paper attempts to broadly identify and categorize the challenges faced by 3PL companies and discover potential gaps for future...