CryptoCloak application - main idea, an overview and improvement proposal
Dijana Vuković, Zoran I. Djuric, Danilo Gligoroski · 2014
Since July 2013, a lot of effort has been invested into spy-resistant application development. ”Surveillance” and ”privacy” became terms heard more often, both in informal conversations and in security research community. Different initiatives took a place world-wide by Electronic Frontier Foundation and similar organizations to fight for the Internet as it is used to be (e.g. ”The day we fight back”, ”Reset the Net”, etc.). Arms race started in the application development, offering different kind of privacy protection for average end-users: anonymous Internet browsing, secret chats, e-mail encryption, etc. CryptoCloak is an application for privacy protected chat communication. Encrypted communication is masked with dynamic cheap chat conversation. In the current version of the CryptoCloak, Diffie-Hellman key exchange is done in clandestine manner - instead of sending uniform sequence of numbers over the network, sentences are sent. It produces huge overhead. In this paper, CryptoCloak tool is introduced and one proposal for its improvement is given.