Original keystone and languages?

[kilwa]

Curious if/how you can check and determine if a dump contains the original keystone?

Also curious if there are any methods or tools that can determine which languages are included in a game (if it happens to no longer be listed on the PlayStation store)?

 

[godreborn]

don't know about the second one unless you have the pkg, then you can see all files with orbis-pub-chk.

determining if it's the original keystone is fairly simple. all fake pkg keystones, if they're not original, look exactly the same in hex. you can see an example of one on psdevwiki. the keystone is based on the fingerprint, which is created from the passcode. almost all fpkg use the same passcode: 32 0's. some groups originally made up their own passcode, so there's no way to extract the game on the computer without knowing it. those are rare though (only seen one of them).

 

[godreborn]

https://www.psdevwiki.com/ps4/Keystone#Sample_keystone_file

that is what just about all fpkg, without the original, will look like.

 

[godreborn]

btw, you can figure out which ones have a different passcode. the keystone is in the encrypted part of the game, so if all 0s doesn't work for getting it, then you'll know that the keystone is going to be different. there's no way from that to know if it's the legit one unless you know the passcode. if you know the passcode, copy and paste it into the box of orbis-pub-gen. you'll get the fingerprint from that. then, you can hex compare the ascii version iirc to see if they're the same. if they are, then the passcode is unlikely to be legit.

 

[kilwa]

btw, you can figure out which ones have a different passcode. the keystone is in the encrypted part of the game, so if all 0s doesn't work for getting it, then you'll know that the keystone is going to be different. there's no way from that to know if it's the legit one unless you know the passcode. if you know the passcode, copy and paste it into the box of orbis-pub-gen. you'll get the fingerprint from that. then, you can hex compare the ascii version iirc to see if they're the same. if they are, then the passcode is unlikely to be legit.

Let me see if I'm understanding this correctly. If the keystone is original, fingerprint will look exactly like this in a hex editor:

6B657973746F6E650200010000000000
00000000000000000000000000000000

Is that right? Apologies for the late reply btw

 

[godreborn]

Let me see if I'm understanding this correctly. If the keystone is original, fingerprint will look exactly like this in a hex editor:

6B657973746F6E650200010000000000
00000000000000000000000000000000

Is that right? Apologies for the late reply btw

no, the first two lines are constant across all keystones. lines 3 and 4 are the fingerprint:

the fingerprint will be in the ascii/text field, but it will be exactly that above if it's not the real keystone.

 

[kilwa]

no, the first two lines are constant across all keystones. lines 3 and 4 are the fingerprint:

View attachment 308064

the fingerprint will be in the ascii/text field, but it will be exactly that above if it's not the real keystone.

Whats that tool called in the screenshot?

 

[godreborn]

Whats that tool called in the screenshot?

Orbis-pub-gen

 

[kilwa]

Orbis-pub-gen

Can you load the pkg in that specific area to see the fingerprint? I recall having used orbis-pub-gen before to dump some content (if I remember right), and I can't remember seeing an option for that.

I don't mind using a hex editor though. Just more curious than anything I guess

 

[godreborn]

Can you load the pkg in that specific area to see the fingerprint? I recall having used orbis-pub-gen before to dump some content (if I remember right), and I can't remember seeing an option for that.

I don't mind using a hex editor though. Just more curious than anything I guess

Can't. You'd need the passcode. It goes through some algorithm to convert the passcode to the fingerprint. All keys for the game are generated by the passcode. You also can't input anything in the fingerprint field to reverse a fingerprint into its passcode. I think progress has been made reversing the algorithm.