It can detect passive snooping, not full MITM. - Sent from my tablet Den 18 sep 2012 18:17 skrev "Zack Weinberg" <zack.weinb...@sv.cmu.edu>:
> On Tue, Sep 18, 2012 at 3:30 PM, Natanael <natanae...@gmail.com> wrote: > > Does anybody here take quantum crypto seriously? Just wondering. I do not > > see any benefit over classical methods. If one trusts the entire link and > > knows it's not MitM'd in advance, what advantage if any does quantum key > > distribution have over ordinary methods? And isn't it just as useless > > otherwise as the ordinary methods? > > I've seen claims that quantum key agreement lets both parties detect a > man in the middle with no prior communication and no trusted third > party. If that's true it would obviously be huge. I don't know > enough about the topic to assess whether it's actually true. > > It seems obvious to me that you'd only use quantum crypto to set up > symmetric keys for a secure channel, just like you don't use RSA for > bulk encryption right now. > > zw >
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