Re: [cryptography] abstract: Air to Ground Quantum Key Distribution

2012-09-19 Thread James A. Donald
On 9/19/2012 2:17 AM, Zack Weinberg wrote: 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. Whispering in someone's ear, or, equivalently, near field

Re: [cryptography] abstract: Air to Ground Quantum Key Distribution

2012-09-19 Thread Jeffrey Walton
On Wed, Sep 19, 2012 at 4:48 PM, James A. Donald jam...@echeque.com wrote: On 9/19/2012 2:17 AM, Zack Weinberg wrote: 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

Re: [cryptography] abstract: Air to Ground Quantum Key Distribution

2012-09-18 Thread Natanael
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

Re: [cryptography] abstract: Air to Ground Quantum Key Distribution

2012-09-18 Thread Zack Weinberg
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

Re: [cryptography] abstract: Air to Ground Quantum Key Distribution

2012-09-18 Thread Natanael
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

Re: [cryptography] abstract: Air to Ground Quantum Key Distribution

2012-09-18 Thread Nico Williams
On Tue, Sep 18, 2012 at 10:30 AM, 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