Current anonymous communication systems make a trade-off between weak anonymity
among many nodes, via onion routing, and strong anonymity among few nodes, via DC …

Ensuring proper privacy and protection of the information stored, communicated, processed,
and disseminated in the cloud as well as of the users accessing such an information is one …

Talek is a private group messaging system that sends messages through potentially
untrustworthy servers, while hiding both data content and the communication patterns …

Censorship circumvention systems such as Tor are highly vulnerable to network-level
filtering. Because the traffic generated by these systems is disjoint from normal network …

Censorship circumvention is often fueled by supporters out of goodwill. However, hosting
circumvention proxies can be costly, especially when they are placed in the cloud. We argue …

The cloud concept promises computing as a utility. More and more functions are moved to
cloud environments. But this transition comes at a cost: security and privacy solutions have …

Recently, there has been a surging interest on anonymizer technologies as a result of
increasing privacy concerns and censorship barriers on the Internet. Tor network has …

Content Delivery Networks (CDNs) are critical Internet infrastructure. Besides high
availability and high performance, CDNs also provide security services such as anti-DoS …

Online services typically collect data that are explicitly provided by users and metadata that
are implicitly inferred from users' activity patterns. The proclaimed goal of metadata …

Cyber anonymity tools have attracted wide attention in resisting network traffic censorship
and surveillance, and have played a crucial role for open communications over the Internet …