For billions of users, today’s Internet has become a critical infrastructure for information retrieval, social interaction and online commerce. However, in recent years research has shown that mechanisms to increase security and privacy like HTTPS are seldomly employed by default. With the exception of some notable key players like Google or Facebook, the transition to protecting not only sensi...

With the rapid development of network applications, the issues of Network transmission security become very important. Therefore, SSL protocol is more and more widely used in a variety of network services. But the SSL protocol itself is not perfect, in practice, there are also problems. For the deficiencies of endpoint authentication in the SSL handshake process, the paper analyzes two kinds of...

In this thesis, we apply the pattern recognition and data processing strengths of machine learning to accomplish traffic analysis objectives. Traffic analysis relies on the use of observable features of encrypted traffic in order to infer plaintext contents. We apply a clustering technique to HTTPS encrypted traffic on websites covering medical, legal and financial topics and achieve accuracy r...