Mastodon bot h4ckernews@mastodon.social reposts the item
3 Nov 1 6:52 AM · 10d ago · 1 post · 1 source · development 3 of 3
A second Mastodon bot account, h4ckernews, posted the same HN submission with the #HackerNews tag, linking directly to the HN comments thread.
n_plus_1_acc Hacker News submitterhkrn@mstdn.social Mastodon aggregator accounth4ckernews@mastodon.social Mastodon aggregator account
The whole story articlesposts the bright band is this development · numbered dots are the others · click one to jump
What people said 8 voices · best of 9 · verbatim
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Which of course Bruce Schneier predicted in 2000:https://www.schneier.com/crypto-gram/archives/2000/0715.html..."Unicode is just too complex to eve be secure"As to me I'm running my own DNS resolver (I use unbound) and everything goes through port 53 UDP (and AIUI technically 53 TCP should be allowed, but nothing will happen if you just block it)…
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Not sure why so many things use the compatibility form of normalisation.Some older RFCs even recommended using it for passwords, which needlessly reduces entropy (yes we need to normalise passwords because of combining characters, but we don’t need to collapse symbols that a user can choose from, like ſ and s).In my opinion, the compatibility form…
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Note that, in addition to normalizing domain components, the process also maps U+3002 IDEOGRAPHIC FULL STOP (。) to U+002E FULL STOP (.) for use as a separator, a nice touch for domain names encoded in blackboard bold.Also, the author's one-liner, updated for Python 3: python3 -c 'import sys;print(sys.argv[1].encode("idna").decode("ascii"))' "℡"
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Tangentially related - 20+ years ago I managed to register a π domain under one of the primary TLDs.As in, the registration form was accepted and the fee was charged.Then, few days after they emailed to say that "due to technical difficulties" the registration can be registered and they have no choice but to unregister it.I was so close, damn…
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> Is this useful?No, it is not, IMHO. When you create an "alias" you are adding "yet-another-confusion-opportunity" and "yet-another-failure-opportunity".For no actual reason.I for one would aim at lowering the complexity, not at making stuff more fancy.
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My favorite unicode character is zero width space. One of its funniest properties is that it's not a whitespace.Also, some programming languages treat it as a valid identifier.
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That shows up as ₛᵖ.ⓜ, so a bunch of characters are missing.HN seems to encode it as punycode when it shouldn’t; it skipped normalization.
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On Firefox, hover-over of the link doesn't show the URL in the bottom left of the browser.
All 3 developments of 2018 Unicode "domain hack" article resurfaces on Hacker News →
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