Kingadasouth096 wrote First, this has nothing to do with getting jtag's online and I am aware that JRunner and others are capable of doing this.

I have disassembled a couple of programs and searched for the coding but have had no luck. I am trying to right a VB program that verifies a CPU key matches up to its corresponding Nand.bin. Can anybody provide me with the coding needed or explain it better to me? +Rep.

You can't really do it that way. You need to create a program, that reads a file on a server. This file will contain CPU Keys/User Info. Your program will temporarily download the file, read the key, then say whether it is verified or not. PM me for help. I did this exact thing.

ProJimmyRustler wrote

Kingadasouth096 wrote First, this has nothing to do with getting jtag's online and I am aware that JRunner and others are capable of doing this.

I have disassembled a couple of programs and searched for the coding but have had no luck. I am trying to right a VB program that verifies a CPU key matches up to its corresponding Nand.bin. Can anybody provide me with the coding needed or explain it better to me? +Rep.

You can't really do it that way. You need to create a program, that reads a file on a server. This file will contain CPU Keys/User Info. Your program will temporarily download the file, read the key, then say whether it is verified or not. PM me for help. I did this exact thing.

That isn't what he was asking. Also that method isn't very good, as one user could share his/her CPU key with friends to allow access for several people. Also data can be read from a webpage, no need to download it. Also it's relatively easy to find the link to where that data is stored and just use one of the CPU keys listed.

On topic - I'm not sure if there's an easier way of doing this, but you could attempt to decrypt the NAND using the CPU key provided, and search for data that would indicate that it decrypted successfully.

Search Google for 'Xbox 360 NAND Editor' - it's an open source NAND editor (should be 3rd link for download) and I think it demonstrates in the code how the NAND is decrypted (although I have no idea, as it's all way over my head).

It certainly seems like a hell of a lot more trouble than it's worth - but as I said, there could be much easier alternatives.

Thank you both for your input Projimmy I will PM after my reply and vSmithy thanks for the lead. I will also look into this. Sorry if I wasn't perfectly clear about this but just like JRunner, flash tool and others indicate that you have entered a matching cpu and nand is what I am after. (Tried to get it from there but not a seasoned programmer and probably went right passed it in the src) Still open to other approaches tho.

I tried the nand editor, while it is a handy little I cant seem to locate the section I need to verify the cpu matches

Kingadasouth096 wrote I tried the nand editor, while it is a handy little I cant seem to locate the section I need to verify the cpu matches

Like I said, i'm not so sure that you can explicitly check if the CPU key matches the NAND. All data in the NAND beyond the copyright notice is encrypted, and so you'll probably have to decrypt at least some of the data in order to check that the keys match.

I'm really not sure though - and posting here probably isn't your best bet either; most people are just here for elite cod hax and few will have the sort of knowledge that this requires, lol.

vSmithy wrote

Kingadasouth096 wrote I tried the nand editor, while it is a handy little I cant seem to locate the section I need to verify the cpu matches

Like I said, i'm not so sure that you can explicitly check if the CPU key matches the NAND. All data in the NAND beyond the copyright notice is encrypted, and so you'll probably have to decrypt at least some of the data in order to check that the keys match.

I'm really not sure though - and posting here probably isn't your best bet either; most people are just here for elite cod hax and few will have the sort of knowledge that this requires, lol.

That's not what he is trying to do. I have PM'ed him, And what it told him originally was what he is looking for.