2 Dan Kaminsky 11-19-2002 10:53 AM ET (US) Justin -- bash-2.05a# phentropy Source of entropy required. phentropy 1.0: Zalewskian Phase Space Entropy Viz for OpenQVIS I take no credit :-) I just wrote a bit of glue for other people to sniff... --Dan 1 Justin Mason 11-19-2002 09:16 AM ET (US) Wotcher, been looking at this stuff myself a little recently for SpamAssassin -- I'm analysing "random" fields in forged spam Message-IDs for characteristic patterns. The technique is not new -- these are the original papers: Strange Attractors and TCP/IP Sequence Number Analysis: http://razor.bindview.com/publish/papers/tcpseq.html Strange Attractors and TCP/IP Sequence Number Analysis - One Year Later: http://lcamtuf.coredump.cx/newtcp/ But Dan's pictures are much, much nicer ;)	Upgrade to PRO Upload pictures, personalize your board, and more! About these ads