The importance of safeguarding individuals' privacy rights in online activities is unmistakable
in today's anonymity networks. Since the introduction of Mixnet by Chaum, numerous …

After several years of research on onion routing, Camenisch and Lysyanskaya, in an attempt
at rigorous analysis, defined an ideal functionality in the universal composability model …

Anonymous routing is one of the most fundamental online privacy problems and has been
studied extensively for decades. Almost all known approaches for anonymous routing (eg …

Anonymity is an (abstract) security goal that is especially important to threatened user
groups. Therefore, widely deployed communication protocols implement various measures …

Differential obliviousness (DO) is a privacy notion which guarantees that the access patterns
of a program satisfies differential privacy. Differential obliviousness was studied in a …

An anonymous communication network (ACN) is designed to protect the identities of two
parties communicating through it, even if an adversary controls or observes parts of the …

Anonymous routing is an important cryptographic primitive that allows users to communicate
privately on the Internet, without revealing their message contents or their contacts. Until the …

The shuffle model has been extensively investigated in the distributed differential privacy
(DP) literature. For a class of useful computational tasks, the shuffle model allows us to …

With every online action, we leave our digital footprints. These massive amounts of data are
used by companies and governments to derive private information and to manipulate us for …

Protecting users' privacy in digital systems becomes more complex and challenging over
time, as the amount of stored and exchanged data grows steadily and systems become …