OSEC

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Subject: Re: reverse engineer c or java
From: AnorEXia (anorexiaTELKOM.NET)
Date: Sat May 20 2000 - 12:13:51 CDT

Hm
Writing a tool for decompiling C or C++ in my fool mind would be done
by turning from hexadecimal code to assembly, then you should create a
"interface" that reverse what most compilers do, that is,
language->assemby, by so, it should be assembly->C

I didn't see any of this tools yet, if someone did, appoint me
----- Original Message -----
From: phazer <phazerTALOCAN.DHS.ORG>
To: <VULN-DEVSECURITYFOCUS.COM>
Sent: Sunday, May 21, 2000 1:47 AM
Subject: Re: reverse engineer c or java

: Check out this nice tool:
: http://www.geocities.com/SiliconValley/Bridge/8617/jad.html
: It will decompile java .class files into java source code.. I don't
know
: if there are similar programs for C, but i believe it's a lot
: harder to decompile than java.
:
: -phazer
:
: On Fri, 19 May 2000, kj wrote:
:
: >> Hey KJ. I don't know if this sounds stupid or not, but this is
: >> basically what I want to know.
: >> Matthew
: >>
: >> Is there any difference in difficulty between reverse engineering
: >> an executable file or a Java Class. If the C or Java program is
: >> written with security in mind by an experienced programmer, how
: >> long would it take to reverse engineer each version of a fairly
: >> simple application?
: >
: >
: >The desired effect is to have a program that a client downloads off
: >the internet, and Matthew wants to know if it should be written in
: >c or java. Though, I take it both can be reversed engineered by
: >talented programmers; but I guess he wants to know which would be
: >harder or more complex to "hack".
: >
: >I am not too sure, thus I am passing it on to you gurus.
: >
: >K.J.
: >
: >"Never argue with an idiot. He will take you down to his level, and
: >beat you with experience."
: >
: