Re: Figuring out table based encryption in assembly

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Right, they brake all encryptions in garage :-)

Disassembling a copyrighted computer program a copyright infringement!

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jonathon wrote:
> I've been tracing an old (1996) utility that uses a very sophisticated
> encryption algorithm for license info. It generates a table, uses
> constantly changing keys, and does some really bizarre stuff with
> multiplication, shifts, xor, and table lookups.
>
> The crypto group doesn't seem to be very active or very helpful, so I
> thought I'd ask here: is there any way to figure out if this is a
> standard encryption method?
>
> It's so complex, it seems unlikely some guy in his garage made it up.
> But at the same time, I'm not sure how to tell if it is DES, Blowfish,
> or something similar.

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