articles



Here are a few articles I wrote in the past, for different purposes. Some were meant for widespread publication, some not. Some are good, some are not. Decide yourself, and let me know your comments, given they are non-harassive. Some of the articles are in german. If you want to know at all costs - including bad translation - what I wrote, then you might want to try Babelfish from Altavista.

DateTopicDescription
December 2001 Armouring the ELF: Binary encryption on the UNIX platform A short introduction into the ELF file format, followed by techniques to protect ELF files against analysis. Published in the Phrack magazine, the article is available from their page. There is some example program released with the article. Its called burneye and available on the TESO release page.
December 2000 Exploiting format string vulnerabilities Article on how to exploit a certain kind of software vulnerability known as "format string vulnerability". The article is available in its latest version from the TESO articles page. There is also a german version, which is older though.
March 2000 Writing MIPS/IRIX shellcode First published in the wonderful Phrack magazine, this article details on how to write shellcode for IRIX systems. It needs an overhaul, and the presented shellcodes are far from being optimal, but all in all it makes a good primer for anyone who wants to get the basics. Get it from the TESO articles page.
December 1998 Zufallszahlen, Vorhersagbarkeit und Entropy Very simple essay about randomness and pseudo random number generators. Used for presentation in my cs course in school, so do not expect much ;)
November 1997 Fraktale und fraktale Geometrie (german) Easy to understand essay about fractals to get a rough understanding what fractals are and what they mean to science. A more in-depth essay in english is available from Paul Bourke's homepage. I used some of his graphics, which I like to thank him for.
November 1997 Das Mandelbrot Fraktal (german) Additional details about the Mandelbrot fractal, to accompany the previous essay.