Navision Object Metadata Encryption

whitehell

Hi,

I am working on a application which should be able to export navision objects to some kind of repository.
But first thing I need to found out is how to decrypt records form table Object Metadata. Only thing I can see is HEX.
Any advice? Thank you.

Ondrej

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fixed subject to encryption.

ara3n

Create job on NAS that can be scheduled and it can export the blob field to a file.
I don't think it's encrypted. It's compressed.

You can try and changed the Compressed property of the field to false.

whitehell

Thanks for that idea. You are correct, its just a compression.
After some research, I found this thread: http://dynamicsuser.net/forums/t/23178.aspx
It seems that they used some unknown custom algorithm. :x
Is there any way how to get to that algorithm?

Luc_VanDyck

If this algorithm is published on the Internet, then it's not an unknown custom algorithm anymore.
If you don't know someone inside the MDCC dev-team, then forget it.

Or try some disassembler/decompiler to figure out how the NAV client/server works. Depending on your skills, you might also forget this approach.

ara3n

did you try and change the property from compressed to false?

whitehell

to Luc Van Dyck:
As it was already mentioned on this forum somewhere, it wasn't pusblished. And probably never be in a official way.
Looks like i have only reverse engineering option to think about.

to ara3n:
No I didn't, because I am sure it will works like that. Already read about that in other posts. Problem is that I don't want to modify DB in any way.

Thank you for valuable responses.