Displaying items by tag: Wirless Security

Security is the bane of every network in the world. It is the reason why so many IT technicians end up burnt out or (in the case of men) bald. We all know that the only secure system is one that does not allow anything (and I mean ANYTHING) to connect, or input to the system. As soon as you connect a system to any type of input device or medium (say a network/the Internet) you open up vulnerabilities.

Even the most sophisticated firewall can be gotten around with time, effort and some creativity. This is all just the wired networks; we have not even begun to talk about wireless networks. These handy security holes create a whole new level stress for the IT technician. After all with not much more than a laptop and the right Lunix ISO you can grab packets out of the air and find out the WEP, WPA and if you are patient enough even WPA2 keys. True you can add RADIUS (Remote Authentication Dial In User Service) and certificates into the mix if you have the budget, but what about the home user? Or even better… what about our cellular networks?

For a long time it was thought that wireless could be secured with simple encryption and trusted networks. Then we found that these data packets can be intercepted in route and either spoofed or blocked creating a security breach. This, in extremely simplistic terms, is a Man-in-the-Middle attack and it is a very dangerous one.

Fortunately some researchers at MIT have developed a protocol that can potentially prevent these be encoding a specific transmission sequence in the originating packet. The sequence is a series of ones and zeros (data and silence) that when put together indicate to the receiving party that this is the correct sender.  It does this in multiple ways to prevent, blocking, Collision, and spoofing of packets which are used by the most common Man-in-the-Middle attacks.  The nice thing about this new protocol is that it can be applied to almost any network including both 4G network types.

Source NetworkWorld

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