Mobile augmented reality (MAR) is a portable implementation of augmented reality (AR) that enables real-time interaction between digital content and the actual, physical world. Recently, it has been implemented in mobile applications (i.e., mobile augmented reality applications or MAR-Apps) accessible through smartphones, tablets, etc. However, even...

Background Blockchain is a decentralized, shared system that records every transaction made by participating entities across the network so that any record cannot be altered retroactively. In private and permissioned Blockchain networks, Public Key Infrastructure (PKI) is adopted as a cryptographic key management technique that enables all components...

A lack of a secure caller ID scheme in today's telephone network system leaves users susceptible to voice and voicemail spam used to gain access to sensitive personal information. Additionally, caller ID masking prevents law enforcement agents from tracing a call and tracking down a criminal. Current caller ID authentication systems are computationally-intensive...