Researchers from MIT and the École Polytechnique Fédérale de Lausanne, in Switzerland, have created a new type of anonymity network named RIFFLE , Which they claim fixed some of the Tor’s weak spots.

Riffle is hardened against the Sybil Attack whereas the Tor is vunerable to Sybil Attack. Riffle network works similar to Tor but is hardened against these types of attacks.

Tor’s Onion protocol is used by Riffle:

Riffle uses a unique system for shuffling messages around while transiting through servers. If packet A, B, C enter a Riffle server, they will be delayed and shuffled in a random order, and then sent out in a completely different order (for example, C, A, B).

A Intruder tracking the path of the message will not be able to guess when and which packet that has entered a Riffle node is set to leave.

Riffle does not completely overhaul how Tor works because it still uses the groundbreaking Onion protocol to encrypt its messages with different levels of encryption, which are peeled off by every server through which the message travels. So an attacker will still have to break several layers of encryption to reach Riffle content.

Riffle uses a two-phase authentication system:

Riffle has used a technique called”Verifiable Shuffle” for prevention from the Sybil Attacks and works on top of the TOR browser.

“The encryption can be done in such a way that the server can generate a mathematical proof that the messages it sends are valid manipulations of the ones it receives,” MIT explains.

This is done by sending the first message of a communication channel to all servers on the Riffle network. This message is used to establish secure connections to all servers along a message’s path.
After the first message, the rest of the communication channel uses a less CPU-intensive authentication and encryption system that is still secure enough and also provides better speeds for data transfers, when compared to.

New Riffle network is faster than Tor

Researchers say that file transfers required one-tenth of the time as compared to other anonymity networks.
Previous efforts to create a better anonymity network included projects such as HORNET or MIT’s Vuvuzela. While HORNET was ready for testing and its creators were bragging about being faster and more secure than Tor as well, Vuvuzela was nowhere near a production-ready state.