PermaLinkSpeedPass Key Tag Vulnerability
02:02:03 PM

The RFID chips used in the Exxon/Mobil SpeedPass as well as in "theft-proof" car keys and various other proximity based security systems turn out to be vulnerable to easy attack via ordinary cryptographic means. The dangerous part of this is that attackers do not have to get physical possession of your SpeedPass tag in order to get the information needed to access your account,. They only need to get close enough to cause the transponder to send out it's coded response. From there, it's just a matter of computations that can be accomplished in 15 minutes -- with affordable equipment.

Bummer. I think I'll be taking my SpeedPass off my key ring for the time being, at least until more info is available to shed light on the seriousness of the vulnerability.

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Comments :v

1. Bruce Perry01/30/2005 02:41:43 PM

You might consider putting it in one of those foil envelopes like the EZ pass transponders come in. It serves as a cheap portable faraday cage. Of course it would still be vulnerable when you took it out to get gas, but the risk would be minimized.

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