[cryptography] Alleged recovery of PS3 ECDSA private key from signatures

Francois Grieu fgrieu at gmail.com
Thu Dec 30 04:16:43 EST 2010


According to a presentation made at the 27th Chaos Communication
Congress, there is a serious bug in the code that was used to
produce ECDSA signatures for the PS3: the same secret random was
reused in several signatures, which allowed the team to recover
the private key from signatures.

The relevant part of the presentation starts at 5'15" in
http://www.youtube.com/watch?v=84WI-jSgNMQ


  Francois Grieu




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