- Oct 28, 2010
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Just got me a phat PS3 running 3.41 500GB HDD and jailbroke it :P'
Anyone else running a JB PS3?
Bye Bye XBOX :P
Anyone else running a JB PS3?
Bye Bye XBOX :P
Why is it impossible for sony to block or ban jailbroke PS3s? Surely they can freeze your PS3 from going online and playing games online just like XBOX can?
This formerly secret number is used to "sign" all games and software that run on the system, to authenticate that it is genuine and approved by Sony.
However, once the key is known it can be used to sign any software - including unofficial software and games.
"I hate that it enables piracy," said Mr Hotz. "The publication of the key is more academic than anything else."
The number also works for Sony's handheld console the PlayStation Portable, said Mr Hotz.
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"Sony uses a private key, usually stored in a vault at the company's HQ, to mark firmware as valid and unmodified, and the PS3 only needs a public key to verify that the signature came from Sony.
"Applied correctly, it would take billions of years to derive the private key from the public key, or to make a signature without knowing the private key, even when you have all the computational power in the world at your disposal."
But the team found that Sony had made a "critical mistake" in how it implemented the security.
"The signing recipe requires that a random number be used as part of the calculation, with the caveat that that number must be truly random and not predictable in any way," the team said.
"However, Sony wrote their own signing software, which used a constant number for each signature."
This allowed the team to use "simple algebra" to uncover Sony's secret key, without access to it.
"This is supposed to be the most secret of secret of secrets - it's the Crown jewels," said pytey.
With knowledge of the code you can have modified or copied software marked as legitimate by the PS3 using Sony's own signing method so it will be indistinguishable from the legitimate software as far as Sony is concerned.
Time to invest in a PS3 I think.