Sunday, 17 July 2016

On 04:25 by admin   No comments
A group of researchers has developed Riffle, a new anonymity scheme that provides better security and performance than others, including Tor.
Tor is probably the most popular anonymizing network, million of users leveraged on it to protect their privacy and online anonymity.

Now Massachusetts Institute of Technology researchers revealed a new anonymity architecture that could rival Tor.

The MIT researchers alongside with peers from the École Polytechnique Fédérale de Lausanne (EPFL) have created the Riffle anonymity network, which promises to solve the weaknesses of the most popular Tor architecture.Researchers claim Riffle is more secure of Tor, it is able to ensure users’ privacy as long as at least one of its server remains safe.

How does the Riffle architecture work?

The Riffle architecture implements a Mixnet (Mix Networks), a series of servers that allows routing by permuting the order of messages they receive before passing them to the next hop.

“The heart of the system is a series of servers called a mixnet. Each server permutes the order in which it receives messages before passing them on to the next. If,for instance, messages from senders Alice, Bob, and Carol reach the first server in the order A, B, C, that server would send them to the second server in a different order — say, C, B, A. The second server would permute them before sending them to the third, and so on.” states the blog post on the MIT.

“An adversary that had tracked the messages’ points of origin would have no idea which was which by the time they exited the last server. It’s this reshuffling of the messages that gives the new system its name: Riffle.”

An attacker is not able to track messages because the paths of each message are random, the Riffle anonymizing scheme also protect traffic by using an Onion protocol leveraging on multi-layered encryption mechanism. Messages are encrypted hop by hop while travelling from source to the final recipient.


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