Hi. Being the security freak that I am, even with military grade encryption (for whatever THATS worth) I feel a little insecure, as most routines are, as far as I can tell, still succeptable to at the least brute force attacks. I was wondering: how to cracking programs determine that they have successfully decrypted a file? Does it simply look for english text (or file headers etc)? If so, how about double-encrypting a file with two completely different and very complex programs? Then, even if it did get the first, it couldn't tell because the resulting data would still be largely gobbledegook. Probably a stupid question, but I was curious. Skye -- "Thppt bwach oop ack" - Bill the Cat | -----====> Skye Merlin Poier <====----- PGP Public Key available on request | Undergrad in CMPT/MATH (Virtual Reality) !!!!!!! FIGHT CLIPPER / LEEF !!!!!!! | email: poier@sfu.ca