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Playstation 5 root keys obtained

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Re: Playstation 5 root keys obtained

#71
post #16

Earlier quoted context omitted.

"I want to play pirated games" is a perfectly legitimate reason

This is the true reason that I feel like everybody are dancing around. Let's not lie to ourselves, hacking consoles in PS1, PS2 and DC era was for pirating games. Running unlicensed apps or linux was just a nice side effect of true goal. This days it's far less popular because of size, connectivity and prices of games.

Hacking them was easy if you wanted to pirate, but during that time I don't think its the only reason. The games were huge DSL wasn't around in the PS1 days, PS2 yeah it was, and so was DC, but PS1 was more for region locked games like imported Japanese games. Running PS2 games off the HDD if you bought that was way faster, it was a legitimate reason to want to hack it even if you bought games. The size doesn't matter if you just used a reader and copied the discs, the PS3 was easier to use the onboard bluray to copy so you could it off the HDD, but I used hacks to use other branded controllers on the PS3 like on the USB ports. PS3 was somewhat piracy related but otherOS and homebrew matters more than you think, being able to run emulators on xbone in developer mode was enough to keep it from being hacked since you can run emulators on it, while the PS4 was hacked. The PS5 hardware is very attractive in the GPU shortage, and has very decent hardware for the price too.

Re: Playstation 5 root keys obtained

#72

Earlier quoted context omitted.

From the thread: > Can these be rotated easily? > No. We might get lucky.

I'd be surprised. The PS3's keys were leaked too (by the same group, in fact), and Sony managed to put the genie back in the bottle in a pretty amazing way.

Efuses

Re: Playstation 5 root keys obtained

#73

As someone who isn't in the jailbreaking space I don't really know what this means. Can you sign your own PS5 code and run it on the hardware?

These keys are symmetric, so they can be used for decryption. With these symmetric keys you might be able to decrypt games, videos, save files etc sitting on the disk. I don't believe signing will be possible, nobody uses symmetric keys for signing games. What this does is increase the possibility of someone finding how to bypass the signature verification check and then running their own code.

Why don't they use asymmetric keys for everything?

Re: Playstation 5 root keys obtained

#74

> Fail0verflow have stated in the past that Jailbroken consoles are not worth it anymore since they are so close to computers in features and functionality They're right, its just a PC now. Its crazy, I can't think of anyone who wants a console that has a rough computer equivalent of a Ryzen 7 3700X, 5700 RT with ray tracing, shares 16GB GDDR6 ram, a blu-ray drive, with a 1GB NVME drive for $500+tax (in store stock a…

A bit confused. Are you saying the hardware is cheap and for the same price, better hardware can be purchased? Been a long while since I built a PC.

Its a bargain, heavily subsidized by Sony who expects to earn it back (and more) on games & subscriptions. You can't put together PC with similar specs for this price, more like for double.

On top of that, you can't get various PC components easily right now due to chip shortage. With PS5, you're getting it all in a 100% working box.

Re: Playstation 5 root keys obtained

#75

Earlier quoted context omitted.

These keys are symmetric, so they can be used for decryption. With these symmetric keys you might be able to decrypt games, videos, save files etc sitting on the disk. I don't believe signing will be possible, nobody uses symmetric keys for signing games. What this does is increase the possibility of someone finding how to bypass the signature verification check and then running their own code.

Why don't they use asymmetric keys for everything?

Symmetric keys means that anyone with the key can do everything the key allows one to do. That's bad if you're building consumer devices that contain the key. Signing with public key cryptography, which allows only verification with the end-user key, is much more secure in this scenario.

Re: Playstation 5 root keys obtained

#76

Earlier quoted context omitted.

These keys are symmetric, so they can be used for decryption. With these symmetric keys you might be able to decrypt games, videos, save files etc sitting on the disk. I don't believe signing will be possible, nobody uses symmetric keys for signing games. What this does is increase the possibility of someone finding how to bypass the signature verification check and then running their own code.

Why don't they use asymmetric keys for everything?

If you need to encrypt and decrypt your data, on the same device, asymmetric is only more complex.

Re: Playstation 5 root keys obtained

#77

Earlier quoted context omitted.

These keys are symmetric, so they can be used for decryption. With these symmetric keys you might be able to decrypt games, videos, save files etc sitting on the disk. I don't believe signing will be possible, nobody uses symmetric keys for signing games. What this does is increase the possibility of someone finding how to bypass the signature verification check and then running their own code.

Why don't they use asymmetric keys for everything?

Because we don't generally use asymmetric keys for much data encryption. The operations are (IIRC) comparatively computationally expensive.

Re: Playstation 5 root keys obtained

#78

Earlier quoted context omitted.

Why don't they use asymmetric keys for everything?

Symmetric keys means that anyone with the key can do everything the key allows one to do. That's bad if you're building consumer devices that contain the key. Signing with public key cryptography, which allows only verification with the end-user key, is much more secure in this scenario.

This isn't a good answer for "Why don't they use asymmetric keys for everything?" as you basically just explained that it would be more secure to use asymmetric keys.

Re: Playstation 5 root keys obtained

#79

If only people could obtain a Playstation 5 to go along with them.

It really varies with markets. In UK it's pretty hard(although over the last year I've managed to help several of my friends buy one, it's just a matter of setting up discord notifications), in Poland they are easily available, you can just walk into a store and buy one no problem. Or several places have stock available for delivery. No big deal. For instance https://m.euro.com.pl/konsole-playstation-5/sony-playstati…

Yes, its available at x2 MSRP

Re: Playstation 5 root keys obtained

#80

Earlier quoted context omitted.

Wait, wasn’t it the other way around? There was that fail0verflow slide about how the PS3 took unusually long to crack if you count from the release, but essentially the same time as other consoles if you count from the moment one couldn’t run other OSes on it.

If it was cracked after Linux was removed, then what was the reason for removing Linux? My recollection was that it was a security vulnerability.

They started out by not including it in the Slim, then removed it for "security reasons" in a firmware update for the original consoles. I imagine they just decided not to bother with the new product, and then wiped it from the existing ones.
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