Although TOR is a great anonymous network, it has some limitations that could still allow a motivated hacker to compromise the anonymity of legions of users, including dark web criminals as well as privacy-minded innocents.
Moreover, TOR (The Onion Network) has likely been targeted by the FBI to arrest criminals, including the alleged Silk Road 2 lieutenant Brian Richard Farrell, who was arrested in January 2014.
Even the TOR Project accused the FBI of paying the researchers of Carnegie Mellon University (CMU) at least $1 Million to disclose a technique that could help the agency unmask TOR users and reveal their IP addresses as part of a criminal investigation.
Things being what they are, what's next? Is there an option?
Indeed, most presumably, YES.
RIFFLE – A New Anonymity Network
Scientists from the Massachusetts Institute of Technology (MIT) and the École Polytechnique Fédérale de Lausanne (EPFL) have made another secrecy system, which they guarantee settles some of Tor's frail focuses.
Named Riffle, the secrecy system guarantees to give better security against circumstances when programmers present rebel servers on the system, a method to which TOR is helpless.
Riffle keeps up clients' protection the length of no less than one of its server stays safe.
Here's How Riffle Works:
The mystery behind Riffle is the utilization of a Mixnet or Mix Networks – a framework that courses every client's messages through a chain of intermediary servers known as Mixes with a specific end goal to avoid activity investigation.
The messages are then sent to the destination in a random order, making it harder for any eavesdropper to link the source with its receiver.
Like TOR, Riffle also uses Onion protocol to encrypt its messages with different layers of encryption, which are peeled off as the message passes through every server in the anonymity network.
So a malicious actor will still have to break several layers of encryption in an effort to reach Riffle content.
Riffle's 2-Phase Authentication makes it more Secure than TOR
Any dedicated attacker could easily target Riffle as they target TOR by tampering with some servers in the anonymity network using their own code.
To defend against these types of attacks, Riffle uses a technique known as 'Verifiable Shuffle,' which works on top of Onion protocol.
Verifiable Shuffle is a method that generates a verifiable mathematical proof indicating that the messages it sends are the same as the messages it receives.
Once a secure connection to all servers is established, the system then makes use of 'Authentication Encryption' in order to verify the authenticity of the encrypted messages, using less computation power, but providing better speeds for data transfers compared to TOR.
In this way, even malicious servers can not mess things up – they have to shuffle the messages correctly so that the good servers can accept the incoming data. If server tampered with the messages, it would be spotted at once.
Therefore, as long as one single server on the anonymity network is safe, Riffle is Secure.
Riffle is faster than TOR
More importantly, file transfers in Riffle required one-tenth of the time as compared to TOR and other anonymity networks during experimental tests.
Riffle is a long way from becoming reality, but its tougher security and less overhead could change the way we browse anonymously today. More details on the system will be presented at the Privacy Enhancing Technologies Symposium in July, in Germany.
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