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PS Vita index.dat decryption keys posted

Open discussions on programming specifically for the PS Vita.
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Hykem
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Posts: 75
Joined: Sat Jan 15, 2011 8:11 pm

Re: PS Vita decryption keys posted

Post by Hykem » Sat Jun 13, 2015 11:30 am

Shaggy wrote:Let's say I had a 1.61 Vita. Would that be useful to devs?
Yes. If there are any good chances of finding a kernel vulnerability, it's in a pre-1.80 Vita.
The reasons for this have been mentioned several times by Yifan Lu (no KASLR and no NID poisoning).
Some developers already have a pre-1.80 Vita (Davee, Proxima, etc.).
iCEQB wrote:I see that some say that the decryption of the file takes place at several points during runtime?
So how was the key gathered? Can you calculate the key once you have the file in plaintext?
Or was it snatched from the place where the vita stores them ?

What I'm trying to ask is, if there were more keys stored where you got this one from?

Or was the key exposed at a point where you had control of certain regions in RAM?
The keys were grabbed from memory and, unfortunately, they are the only ones we currently have access to.
As I stated earlier, they were likely used on low firmware versions when doing the secret combo on the Settings application (the combo was patched later on, but they remained accessible to the application as it needs them to decrypt index.dat for other reasons). It's easy to conclude that they were obtained by exploiting this particular application and looking for the memory region were the keys were temporarily stored.

Anyway, as Yifan Lu just stated, they are pretty much useless since the only thing we could pull off from this would be index.dat spoofing. Regardless, it's an impressive achievement from Proxima considering we have so little data from the Vita.
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psvitamario
Posts: 31
Joined: Mon Mar 19, 2012 8:18 am

Re: PS Vita index.dat decryption keys posted

Post by psvitamario » Tue Sep 29, 2015 11:20 am

Hello,
with e-mail trick recentely discovered, it's possible reactivate the secret combo on the settings application for firmware 3.18+?
And possible to go pstore on 3.18 in editing index.dat?

Thank for your answer.
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Tikiko99
Posts: 155
Joined: Mon Feb 21, 2011 6:45 pm
Location: Somewhere in this planet called Earth

Re: PS Vita index.dat decryption keys posted

Post by Tikiko99 » Tue Sep 29, 2015 11:25 am

no

Edit: it can't be that simple, can it??
Last edited by Tikiko99 on Tue Sep 29, 2015 12:46 pm, edited 1 time in total.
My Systems:

PSP GO OFW 6.60
PS Vita PCH-1004 : 3.60
PS Vita PCH-1101 : 1.50

PS3 OFW 4.25(dead)

psvitamario
Posts: 31
Joined: Mon Mar 19, 2012 8:18 am

Re: PS Vita index.dat decryption keys posted

Post by psvitamario » Tue Sep 29, 2015 12:29 pm

No : it's not reveal
Or no it't no feasible

darkstorm-ud
Posts: 10
Joined: Wed Sep 04, 2013 1:10 pm

Re: PS Vita index.dat decryption keys posted

Post by darkstorm-ud » Tue Sep 29, 2015 2:35 pm

psvitamario wrote:Hello,
with e-mail trick recentely discovered, it's possible reactivate the secret combo on the settings application for firmware 3.18+?
And possible to go pstore on 3.18 in editing index.dat?

Thank for your answer.
– Writing
– Write to ux0
– Write to any partition (except RO partitions, e.g: vs0)

email trick can write to any partition except for vs0,index.dat is in vs0 partitions ,so that's impossible right now?pls let me know if i am wrong

IsshouJuuzou
Posts: 14
Joined: Sun Aug 09, 2015 8:23 pm

Re: PS Vita index.dat decryption keys posted

Post by IsshouJuuzou » Tue Sep 29, 2015 5:04 pm

darkstorm-ud wrote:
psvitamario wrote:Hello,
with e-mail trick recentely discovered, it's possible reactivate the secret combo on the settings application for firmware 3.18+?
And possible to go pstore on 3.18 in editing index.dat?

Thank for your answer.
– Writing
– Write to ux0
– Write to any partition (except RO partitions, e.g: vs0)

email trick can write to any partition except for vs0,index.dat is in vs0 partitions ,so that's impossible right now?pls let me know if i am wrong
I wish you are. I was going to ask the same thing.

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HarmfulMushroom
Posts: 752
Joined: Wed Dec 25, 2013 10:02 pm

Re: PS Vita index.dat decryption keys posted

Post by HarmfulMushroom » Tue Sep 29, 2015 6:55 pm

darkstorm-ud wrote:
psvitamario wrote:Hello,
with e-mail trick recentely discovered, it's possible reactivate the secret combo on the settings application for firmware 3.18+?
And possible to go pstore on 3.18 in editing index.dat?

Thank for your answer.
– Writing
– Write to ux0
– Write to any partition (except RO partitions, e.g: vs0)

email trick can write to any partition except for vs0,index.dat is in vs0 partitions ,so that's impossible right now?pls let me know if i am wrong
Nope you're correct unfortunately about not being able to write to vs0. If that is where index.dat is located it is not possible to modify it and write it back over at this point.

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