Slashdot is powered by your submissions, so send in your scoop

 



Forgot your password?
typodupeerror
Check out the new SourceForge HTML5 internet speed test! No Flash necessary and runs on all devices. ×

Comment Re:sigh, the "quantum" buzzword (Score 1) 69

1. If all communication channels are created by an attacker and there is neither pre-shared randomness nor a trusted third party, you cannot guarantee that you're talking to anyone in particular as you have no way of cryptographically verifying their identity. I believe this is unavoidable, quantum crypto or no. 2. However you please. Email, telephone call, in person, etc. Authentication happens during the communication; if the notice of which channel to use were modified, the authentication will fail. 3. I believe the typical approach here is to use a classical authentication scheme (using pre-shared randomness, or some certification system, etc.). All that is needed is to establish the identity of the other entity; encryption is handled using QKD. (Disclaimer: I am not a cryptographer.)

Slashdot Top Deals

Little known fact about Middle Earth: The Hobbits had a very sophisticated computer network! It was a Tolkien Ring...

Working...