Interesting, I never thought about that before. The "locking" (and corresponding unlocking) could easily be done by xor'ing against some string of pseudo-random characters that only the encryptor knows how to produce.
-- Rod http://www.sunsetsystems.com/ On Thursday 25 April 2002 07:13 pm, Peter Jay Salzman wrote: > begin Chris McKenzie <[EMAIL PROTECTED]> > > > Sure, I wasn't trying to intend a pun, I just mispelled. > > > > Modern encryption, assymetric processes. > > > > Alright, say I had a very rare piece of software, OpenStep 4.2/i386 and I > > wanted to send it to you. However, you live in some remote jungle where > > you can't copy a key. But I don't want the item to be stolen along the > > way. So I put a lock on the box and send it to you. You can't open that > > lock so in a ridiculous notion, you put another lock on it, one that you > > have the key for and send the doubly locked box back to me. I unlock my > > lock but the box is still locked by you. I send it back, and you unlock > > your lock and have the software. > > hi chris, > > cool post. > > this isn't how modern crypto systems work, is it? this assumes that > the "locks" commute. that for a given message A, a chris lock C and > peter lock P: > > chris CA --> peter PCA --> chris C^(-1)PCA --> peter P^(-1)C^(-1)PCA > > but i can't actually unlock the software unless > > P^(-1)C^(-1) = C^(-1)P^(-1) > > i don't know much about modern crypto systems other than RSA type > things. is this how they work? or am i reading too much into an > analogy? > > > also, i could be totally way off base here, but i think you and mike > were talking about different types of "processes". i'm pretty sure mike > is familiar with reversible processes. i'm guessing he thought you meant > something that goes into a process table. (?) > > pete > _______________________________________________ > vox-tech mailing list > [EMAIL PROTECTED] > http://lists.lugod.org/mailman/listinfo/vox-tech _______________________________________________ vox-tech mailing list [EMAIL PROTECTED] http://lists.lugod.org/mailman/listinfo/vox-tech
