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How does https prevent man in the middle? (lemmy.world)

submitted 1 year ago by [email protected] to c/programming

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Say Alice wants to open up an HTTPS connection to Bob through a proxy named Earl.

What prevents Earl from reading alices request, opening a connection pretending to be bob, and then opening a https connection with bob pretending to be Alice , and snooping on the traffic as it passes through ?

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

Oooh that makes alot of sense, thanks and thanks everyone. So https cant be used for peer to peer , you need a server with a certificate from a trusted authority...

[–] [email protected] 1 points 1 year ago

Right. You'll get a warning otherwise. If you're setting up a lab for yourself, though, you can set up your own trusted authority and use that to issue certificates and it ends up very much like this within your lab.