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what if the hacker provided the public key for https connection? (www.youtube.com)

submitted 6 months ago by Moxible@monyet.cc to c/technology@lemmy.world

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So this video explains how https works. What I don't get is what if a hacker in the middle pretended to be the server and provided me with the box and the public key. wouldn't he be able to decrypt the message with his private key? I'm not a tech expert, but just curious and trying to learn.

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[–] NeoNachtwaechter@lemmy.world 1 points 6 months ago (8 children)

people will happily click 'continue anyway'

Not possible without a certificate. There will be no TLS connection, only an error message. No 'click continue'.

[–] aBundleOfFerrets@sh.itjust.works 2 points 6 months ago (7 children)

It is trivial for an attacker to make self-signed TLS certs, and you can absolutely just click “continue” on sites that use them when you get a warning from the browser

[–] NeoNachtwaechter@lemmy.world 1 points 6 months ago (6 children)

What browser is that?

[–] Cras@feddit.uk 3 points 6 months ago

Firefox, Chrome, Edge, will all warn you about self-signed certs or cert mismatches but allow you to continue. You're completely correct that SSL/TLS needs a certificate, but it doesn't need to be CA issued or in any way legitimate for the encrypted tunnel to be established

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