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The US Federal Aviation Administration (FAA) has recently mandated that small unmanned aerial vehicles (UAVs) be equipped with a transmitter that broadcasts the UAV's serial number, location, and altitude. The inclusion of a unique identifier in the form ...

Attribute-Based Encryption (ABE) provides fine-grained access control to encrypted data and finds applications in various domains. The practicality of ABE schemes hinges on the balance between security and efficiency. The state-of-the-art adaptive secure ...

Communicating about some vital topics---such as sexuality and health---is treated as taboo and subjected to censorship. How can we construct knowledge about these topics? Wikipedia is home to numerous high-quality knowledge artifacts about taboo topics ...

Network-on-chip (NoC) is widely used to facilitate communication between components in sophisticated system-on-chip (SoC) designs. Security of the on-chip communication is crucial because exploiting any vulnerability in shared NoC would be a goldmine for ...

Recently, Google proposed the Topics API framework as a privacy-friendly alternative for behavioural advertising as a possible solution to balance user’s privacy and advertisement effectiveness. Using the Topics API, the browser builds a user profile ...

Current anonymous communication systems either provide strong anonymity with significant delay or low latency with unreliable anonymity. This division leads to smaller user bases and reduced anonymity as users choose systems based on their specific ...

Data processors increasingly rely on external data sources to improve strategic or operational decision taking. Data owners can facilitate this by releasing datasets directly to data processors or doing so indirectly via data spaces. As data processors ...

Threshold ring signatures (TRS) allow several signers to sign the same message on behalf of a group. This scheme is fully anonymity in that a signature reveals the number of signers who created the signature but tells nothing about the identity of ...

Designated Verifier Signature (DVS) is an extension of digital signature that allows the specification of the verifier. This feature is realized by granting the designated verifier the privilege of simulating a valid signature, thereby virtually ...

Digital ticketing systems typically offer ticket purchase, refund, validation, and, optionally, anonymity of users. However, it would be interesting for users to transfer their tickets, as is currently done with physical tickets. We propose Applause, a ...

Mix networks (mixnets) enhance anonymity at the cost of increased end-to-end latency, deterring clients from adopting mixnets for web browsing or instant messaging. This often leads clients to seek alternative anonymous communication systems, potentially ...

Data privacy has become a critical concern in a set of domains, including healthcare, education, traffic monitoring, etc., due to technology's high deployment and massive data collection. In education, academic institutions have started taking several ...

This work studies the urban area location privacy preserving location updates and nearby friends (NF) querying for the centralized proximity based services (PBSs). The urban area constraint forces the user mobility to be on the city road network, ...

Mental health problems are prevalent issues in modern society. While psychological counseling has been a traditional solution, it faces such barriers as negative societal perceptions and limited accessibility. To overcome these, researchers have explored ...

Founded in 2011, Silk Road was the first online anonymous marketplace, in which buyers and sellers could transact with anonymity guarantees far superior to those available in online or offline alternatives, thanks to the innovative use of ...

Metadata-private messaging (MPM) refers to an end-to-end encrypted messaging system that protects not just the payload messages but also the privacy-revealing communication metadata, such as user identities, conversation frequencies, traffic volumes, ...

By definition, people are reticent or even unwilling to talk about taboo subjects. Because subjects like sexuality, health, and violence are taboo in most cultures, important information on each of these subjects can be difficult to obtain. Are peer ...

Employee data can be used to facilitate work, but their misusage may pose risks for individuals. Inverse transparency therefore aims to track all usages of personal data, allowing individuals to monitor them to ensure accountability for potential ...

Bystanders Join in Cyberbullying on Social Networking Sites: The Deindividuation and Moral Disengagement Perspectives

Cyberbullying on social networking sites escalates when bystanders join in the bullying. Bystanders’ joining-in behaviors reinforce the ...

Cyberbullying on social networking sites (SNSs) escalates when bystanders join in the bullying. Although researchers have recognized the harmful consequences of joining in cyberbullying behaviors, little is known about the role of information technology (...

In so-called closed environments, the MIX network can theoretically provide perfect security, i.e. if perfect protection is envisaged, all senders and receivers should be perfectly synchronized and participate equally in each communication round of the ...