[lug] deconstructing pdf of voted Boulder ballots

Zan Lynx zlynx at acm.org
Fri Dec 9 13:37:07 MST 2011


On Fri, 2011-12-09 at 13:33 -0700, Bear Giles wrote:
> That reminds of an app I joked about back in the dark ages. I was
> writing DOS code in x86 assembly language and there's an assembler
> command that allows you to specify the offset of the following item. I
> don't recall using it for anything other than setting the starting
> offset in .com files.
> 
> 
> Somehow code obscuration came up. (Undoubtably targeted at the Boss
> From Hell instead of the outside world.) I joked that we could do that
> to our code with the right tool - it would look like:
> 
> 
>   ; mov ax, bx section
>   .off 231
>   mov ax, bx
>   .off 27a
>   mov ax, bx
>   .off 311
>   mov ax, bx

This is why in some cases, it can be more enlightening to read the
disassembly or decompilation of a program than the original.

-- 
Knowledge Is Power
Power Corrupts
Study Hard
Be Evil
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