Covert channels are used for the secret transfer of information. Encryption only protects
communication from being decoded by unauthorised parties, whereas covert channels aim …

Traffic classification acquired the interest of the Internet community early on. Different
approaches have been proposed to classify Internet traffic to manage both security and …

Software Defined Networking (SDN) is rapidly emerging as a new paradigm for managing
and controlling the operation of networks ranging from the data center to the core …

In response to the growing popularity of Tor and other censorship circumvention systems,
censors in non-democratic countries have increased their technical capabilities and can …

Internet censorship by governments is an increasingly common practice worldwide. Internet
users and censors are locked in an arms race: as users find ways to evade censorship …

Leakage of private information from web applications—even when the traffic is encrypted—
is a major security threat to many applications that use HTTP for data delivery. This paper …

In this paper, we present Telex, a new approach to resisting state-level Internet censorship.
Rather than attempting to win the cat-and-mouse game of finding open proxies, we leverage …

While Internet access to certain sites is blocked in some parts of the world, these restrictions
are often circumvented using proxies outside the censored region. Often these proxies are …

Deep packet inspection (DPI) technologies provide much-needed visibility and control of
network traffic using port-independent protocol identification, where a network flow is …

We present decoy routing, a mechanism capable of circumventing common network filtering
strategies. Unlike other circumvention techniques, decoy routing does not require a client to …