DEF CON 30 - Bill Graydon - Defeating Moving Elements in High Security Keys

A recent trend in high security locks is to add a moving element to the key: this prevents casting, 3D printing and many other forms of unauthorised duplication. Pioneered by the Mul-T-Lock Interactive locks, we see the technique used in recent Mul-T-Lock iterations, the Abloy Protec 2 and most recently, the Medeco M4, which is only rolling out to customers now.

We have identified a major vulnerability in this technology, and have developed a number of techniques to unlock these …

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