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Posted by Security Explorations on May 01
Hello All,
There is yet another attack possible against Protected Media Path
process beyond the one involving two global XOR keys [1]. The new
attack may also result in the extraction of a plaintext content key
value.
The attack has its origin in a white-box crypto [2] implementation.
More specifically, one can devise plaintext content key from white-box
crypto data structures of which goal is to make such a reconstruction
difficult / not…