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    At this point it's important to mention that the public key is signed by a trusted authority, meaning even if the attacker is a man in the middle, he can't pretend to be the server in an attempt to trick the client into encrypting the shared key using the attacker's public key instead. Commented Aug 15, 2011 at 22:07
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    what would happen had we not invented asymmetric encryption? Commented Aug 16, 2011 at 1:50
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    Without asymmetric encryption, the Internet as we know it would not exist, period. You can't sell stuff to random client systems with symmetric encryption. The Internet would be like TV, where you look at the infomercial but you have to call in on the phone to make the purchase. Asymmetric encryption really, really is fascinating stuff Commented Aug 16, 2011 at 3:44
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    Viola? Don't you mean Voila? :) Commented Aug 16, 2011 at 5:45
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    I'm sorry, the viola-voila thing is such a reflexive in-joke thing with me, I used it without thinking about it, and of course, nobody here could be expected to be in on that joke. So, yes, voila was the intended semantic content, and viola was not a typo but an obscure syntactic joke. Sorry about that. Commented Aug 16, 2011 at 12:22