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[REBOL] REBOL encryption?

From: stopm:mediaone at: 15-Feb-2002 2:18

I need some way of encoding text in a way such that for any text <x>, it encodes into a value which no other text (or a very negligible amount) does, and from which it is impossible (or nearly so) to extract the original text except by brute force. It looks like this might do the trick: checksum/method "Test" 'md5 But is this method secure, or only useful to check for corruption in data? I.e., how few values will encode into that? It's for password encryption in a MUD server, so it's pretty important that it be as hard as possible to brute-force passwords. I imagine a standard checksum would yield the same value for many, many different inputs, so it would be much easier to crack by inputing arbitrary values. But is MD5 checksum more secure? Or another method? Or what. Forgive me if this is even more incoherent than usual (I haven't exactly given myself an excellent reputation in terms of comprehensibility of my messages with the few posts I've already made <g>), but it's 2:17 AM. I'm going to sleep now, don't worry. :) 2:18 now.... Alex