[feb]

In the PS3 they lacked a real random number in ECSDA computation. That effectively broke the signature and actually made it possible to recover the private key.

For more info see for example:

* https://www.cs.uaf.edu/2012/fall/cs441/students/sc_ps3.pdf

* A presentation at CCC about how hackers broke the different security features or PS3 including ECDSA https://media.ccc.de/v/27c3-4087-en-console_hacking_2010#t=2...