In recent years, the shuffling model has been garnering attention in the realm of differential
privacy (DP). This study focuses on the fact that the shuffling model follows bounded DP …

We present a novel approach for blockchain asset owners to reclaim their funds in case of
accidental private-key loss or transfer to a mistyped address. Our solution can be deployed …

Anonymous microblogging systems are known to be vulnerable to intersection attacks due
to network churn. An adversary that monitors all communications can leverage the churn to …

Intersection attacks, which are popular traffic analysis attacks, have been extensively studied
in anonymous point-to-point communication scenarios. These attacks are also known to be …

Maintaining privacy on the Internet with the presence of powerful adversaries such as nation-
state attackers is a challenging topic, and the Tor project is currently the most important tool …

Emerging connected devices lead to ubiquitous communication in which anonymity and
efficiency gain additional importance. In this paper, we show that current measures for …

If two parties want to communicate over an insecure channel, they typically execute an
interactive cryptographic handshake to establish a shared secret, before any application …

Traditional VPN-based data transmission schemes are facing the threat of malicious tracking
and blocking. Moreover, most of the anonymous communication networks, such as Tor, can …

Intersection attacks, which are popular traffic analysis attacks, have been extensively studied
in anonymous point-to-point communication scenarios. These attacks are also known to be …

Tor is a well-known routing protocol implementing the Onion multi-layered encryption to
achieve communication anonymity. Among other possible attacks, Tor is vulnerable to …