Software

Cron-OS: Operating System fingerprinter

• I am a co-author of RING and Cron-OS fingerprinting software, with Olivier Courtay and Franck Veysset. We do not mantain it anymore but all published material is still available here.
• The tool Snacktime by Tod Beardsley is based on RING and is much more usable.
• Also see the tool SinFP by Patrice Auffret.

Other Software Activities

• I'm a co-worker and early user of the SPAN protocol animation tool.
• Fun with Quines and other self-reproducing code. Here is one of my shortest Quine (in Pascal): CONST T=';BEGIN WRITE(#67#79#78#83#84#32#84#61#39,T,#39,T)END.';BEGIN WRITE(#67#79#78#83#84#32#84#61#39,T,#39,T)END.
• Fun with polyglot code (i.e. code that reads in more than one programation language). Here is one of my polyglots (both C and Pascal): begin(exitcode){/*}:=1;writeln('*/}main(){puts("')end.");}
• I'm still trying to find a Polyglot Quine (some already exist here).
• For other stuff like that, check the autozyglots page.
• My favorite page on the Web: www.ioccc.org The International Obfuscated C Code Contest.