this post was submitted on 20 Mar 2025
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57
South Africa and China establish record-breaking 12,900 km ultra-secure quantum satellite link. (www.eurekalert.org)
submitted 3 days ago* (last edited 3 days ago) by [email protected] to c/[email protected]
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This milestone marks the first-ever quantum satellite communication link established in the Southern Hemisphere.

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[–] [email protected] 2 points 3 days ago (1 children)

But why

[–] [email protected] 3 points 3 days ago (1 children)

Because you can use one time pad encryption which is theoretically unbreakable. Intercepting the photons used to generate these keys would instantly alter their state thus making them unusable.

[–] [email protected] 0 points 2 days ago

oh right one time pad.

It really does feel like you could do this in a better way, though.