this post was submitted on 12 Apr 2024
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[–] chiisana@lemmy.chiisana.net 31 points 7 months ago (9 children)

Security when you’re on untrusted network. I can trust Google to snoop my banking data and update the spending power info on my ad profile, I can’t trust the random dude in trench coat also using the public wifi when I am traveling out of my roaming coverage.

I joke of course, but the security aspect is still valid.

[–] PortugalSpaceMoon@infosec.pub 15 points 7 months ago (7 children)

What is it that you're doing that is still not using some form of authenticated encryption? Almost everything is https, ssh, almost all mailservers have tls support, irc does have tls support.. What's left that needs to be encrypted by a VPN?

[–] Vash63@lemmy.world 5 points 7 months ago (4 children)

The addresses themselves that you're connecting to as one example. Also often DNS.

[–] PortugalSpaceMoon@infosec.pub 3 points 7 months ago (1 children)

What's the threat model here? I can think of no DNS shennanigans that would not be detectable through the authentication mechainsms in TLS (chain-of-trust). Not having to trust network infrastructure is exactly what TLS is for.

[–] chiisana@lemmy.chiisana.net 5 points 7 months ago* (last edited 7 months ago)

Most DNS requests are clear text, which is why DOH was introduced to secure it such that no one can snoop on you looking up something-embarrassing.com. Also, the initial request, before you get the SSL certificate from the web server, you must tell the server at 169.169.169.169 that you’re looking for the certificate for something-embarrassing.com before they can get you the correct certificate. This is why ECH was introduced. Neither of which have became mainstream yet, and so there are still some basic leakage going on.

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