Warping it up!

Fini Alring's Glossy Tech Zine

Cracking the Bluetooth PIN

Yaniv Shaked and Avishai Wool have written a report about the security flaws in Bluetooth that they have uncovered (investigated).

This paper describes the implementation of an attack on the Bluetooth security mechanism. Specifically, we describe a passive attack, in which an attacker can find the PIN used during the pairing process. We then describe the cracking speed we can achieve through three optimizations methods. Our fastest optimization employs an algebraic representation of a central cryptographic primitive (SAFER+) used in Bluetooth. Our results show that a 4-digit PIN can be cracked in less than 0.3 sec on an old Pentium III 450MHz computer, and in 0.06 sec on a Pentium IV 3Ghz HT computer.

* Cracking the Bluetooth PIN1

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