Bitcoin is the most widely known distributed, peer-to-peer payment network without
existence of a central authority. In Bitcoin, users do not use real names; instead …

Smart devices equipped with powerful sensing, computing and networking capabilities have
proliferated lately, ranging from popular smartphones and tablets to Internet appliances …

Privacy is an important research topic due to its implications in society. Among the topics
covered by privacy, we can highlight how to establish anonymous communications. During …

Bitcoin is a crypto asset with transactions recorded on a decentralised, publicly accessible
ledger. The real-world identity of the bitcoin blockchain users is masked behind a …

Traffic analysis attacks can counteract end-to-end encryption and use leaked
communication metadata to reveal information about communicating parties. With an ever …

Real walking in virtual reality (VR) is a promising locomotion technique since it offers multi-
modal feedback to the user. Unfortunately, the virtual environment (VE) is limited by the …

Bitcoin is the largest cryptocurrency ever created and traded using a decentralized ledger
known as the blockchain. Altogether, Bitcoin is a network in which every computing node is …

The popularity of Internet applications has made communication privacy an increasingly
important security requirement. As an important aspect of privacy, anonymity ensures that a …

Privacy requires more than just encryption of data before and during transmission. Privacy
would actually demand hiding the sheer fact that communication takes place. This requires …

The Internet infrastructure has not been built with security or privacy in mind. As a result, an
adversary who has control over a single Autonomous System can set-up mass surveillance …