Comment on Commercial Flights Are Experiencing 'Unthinkable' GPS Attacks and Nobody Knows What to Do

• Gormadt@lemmy.blahaj.zone ⁨11⁩ ⁨months⁩ ago

  If their isn’t then there’s a big problem with implementing that now, which would require a retrofit of every single GPS system currently in use and likely a replacement of all GPS satellites

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  • lolcatnip@reddthat.com ⁨11⁩ ⁨months⁩ ago

    I would hope whoever designed the satellites had the foresight to allow remote software updates.

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    • Ilovethebomb@lemm.ee ⁨11⁩ ⁨months⁩ ago

      They’re talking about the millions of receivers around the world, not the satellites.

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    • Restaldt@lemm.ee ⁨11⁩ ⁨months⁩ ago

      Nah we just need a satellite mechanic astronaut

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    • x4740N@lemmy.world ⁨11⁩ ⁨months⁩ ago

      Software updates become useless if you hit hardware limitations

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• Creat@discuss.tchncs.de ⁨11⁩ ⁨months⁩ ago

  you can’t have authentication in a one way system. satellites send days, planes receive it, but never send anything.

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  • nailbar@sopuli.xyz ⁨11⁩ ⁨months⁩ ago

    You can have a digital signature, so the recievers know it’s legit

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    • x4740N@lemmy.world ⁨11⁩ ⁨months⁩ ago

      [deleted]

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      • randombullet@feddit.de ⁨11⁩ ⁨months⁩ ago

        That’s not how PKI works?

        Unless you know how digital signatures work better than me

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      • zalgotext@sh.itjust.works ⁨11⁩ ⁨months⁩ ago

        If you’ve figured out how to do that, a lot of governments would pay you a lot of money for your solution

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      • nailbar@sopuli.xyz ⁨11⁩ ⁨months⁩ ago

        You can’t copy a signature, since it is different every time the signed content is different. You need to have the correct key in order to make a valid signature.

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    • Creat@discuss.tchncs.de ⁨11⁩ ⁨months⁩ ago

      yes of course, but that isn’t authentication.

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      • nailbar@sopuli.xyz ⁨11⁩ ⁨months⁩ ago

        Playing with semantics a little, it can be thought of as the satellite authenticating with the client using the signature as password.

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