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You might wish to physically transport key material for a one-time-pad-based interstellar crypto system.
by jl6 13y ago
You might wish to physically transport key material for a one-time-pad-based interstellar crypto system.
- Houshalter 13y agoCould you direct a signal of some kind in a way that only people in the direction you send it could receive it?
- mtdewcmu 13y agoI believe that's a laser. But you would have to make sure somehow that it wouldn't reflect off of any particles en route. Which would likely be impossible... unless the wavelength was very, very long, I think. Also, the laser would spread out, but it would still be mostly in one direction.
- arethuza 13y agoI seem to remember that the original cargo of the Out of Band II in A Fire Upon the Deep was part of a one time pad - the ship held data that had to be xor-ed with data being carried by other ships (presumably so they couldn't keep a copy and read all of the messages). Wasn't Pham also regarded as terribly naive for believing that public key encyrption would be secure? When they are discussing things in the bar scene where they first meet the skroderiders....