this post was submitted on 18 May 2024
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Privacy

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[–] hashferret 28 points 7 months ago (2 children)

Respectfully I think this is a minimal attack vector in this case due to the limited character set of urls. But thanks for the callout, I didn't know there was a name for this sort of attack.

[–] [email protected] 22 points 7 months ago* (last edited 7 months ago) (1 children)

Modern browsers happily show you the actual characters, while sending their encoded entities to the server. So, from a user perspective there is no ASCII limitation. Case in point: söhne.at (just some random website, I have no idea what they are or if they are legitimate)

[–] [email protected] 6 points 7 months ago (1 children)

They'd still resolve via DNS to an address in ASCII though, right? Wouldn't that only be an issue if ICANN didn't have a monopoly on DNS registration? i.e what we already depend on for a semblance of convenience without totally compromising opsec

[–] qaz 9 points 7 months ago* (last edited 7 months ago)

It utilizes punycode under the hood. The actual DNS entries still use ASCII.

[–] qaz 13 points 7 months ago

Punycode enables you to encode any Unicode character as ASCII. Almost all browsers support this.