[-] knightly@pawb.social 2 points 5 days ago* (last edited 5 days ago)

But can you detect the link being broken by someone other than your intended communication partner?

Yes, because breaking the entanglement destroys the link between the photons received at either end.

Observing an entangled photon requires extremely precise timing, the lightspeed lag on the line has to be known down to the nanosecond to ensure that the photon received is paired with the photon at the other end. Even if a MitM wanted to try retransmitting the quantum states it observes on the line, they wouldn't be able to do so without introducing enough lag to desync the connection.

Alternatively, if M tried sending their own random data in sync with the expected timing, then the bits received by B would only have a 50-50 chance of matching the bits sent from A. Any encryption based on that data would almost immediately begin to suffer a 100% error rate.

[-] knightly@pawb.social 4 points 5 days ago

It's physically impossible to intercept an entangled photon without disrupting the entanglement. The act of observing the photon collapses the quantum uncertainty of it's state, so even the most sophisticated MitM attempt is going to immediately break the link.

[-] knightly@pawb.social 30 points 6 days ago* (last edited 6 days ago)

Nope, quantum entanglement can't enable FTL communication. "Real time" still involves lightspeed lag.

What it does is allows random bits of information to be transmitted in an entangled state. You send an entangled pair of photons, and find out afterwards who got a 1 or a 0 when the photons are observed at either end. They call it 'quantum teleportation' because both ends know what the other got, and the information about who got what can't be intercepted without disrupting the enganglement.

Once they can figure out how to preserve that uncertainty through repeaters, switches, and routers, then we can have a quantum internet that uses encryption based on shared quantum random numbers. It's likely to be necessary soon since quantum computers might only be a few years from breaking current common encryption techniques.

[-] knightly@pawb.social 64 points 1 month ago

Precisely.

Gender isn't binary, there is no such thing as a male or female nipple. That distinction is something that Humans made up.

[-] knightly@pawb.social 64 points 2 months ago
[-] knightly@pawb.social 91 points 2 months ago

Discord sucks and nobody should use it.

[-] knightly@pawb.social 105 points 5 months ago

She's not wrong.

47
submitted 8 months ago* (last edited 8 months ago) by knightly@pawb.social to c/android@lemmy.world

Specifically, ones that aren't chock-full of mobile game enshittification and in-app purchases?

I don't mind paying for games but I'm sick and tired of predatory monetization schemes and will immediately uninstall a game if the tutorial insists on showing me a store page.

[-] knightly@pawb.social 80 points 9 months ago

Conservatives are immune to all forms of shame except the deep-rooted sexual kind.

They'd have to catch him in bed with the basketball team before he'd quit.

[-] knightly@pawb.social 64 points 9 months ago

It's only a matter of time 'til the "AI" bubble really pops and all those tech companies that fired too much of their workforce have to start hiring back like crazy.

[-] knightly@pawb.social 148 points 9 months ago

Software companies don't want you to know this, but the open-source licenses on the internet are free. You can just take them home. I have 458 apps.

[-] knightly@pawb.social 112 points 9 months ago

They won't. The party exists to serve the rich.

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knightly

joined 2 years ago