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Web fingerprinting is worse than I thought

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Re: Web fingerprinting is worse than I thought

#511

Earlier quoted context omitted.

Not if you disable JS, cause the website then can't see any of these customizations.

Having JS off probably puts you in the then you are not safe by just turning off JS.

Being in a 0.1% bucket is only ~10 bits of information - much less than what can be gathered with JS on.

And of course its not enough, but the situation is even more hopeless with JS on.

Re: Web fingerprinting is worse than I thought

#512
post #384

Earlier quoted context omitted.

It's not that easy to "present a fingerprint" without compromising the user experience. Sure, you could remove all those PWA and pretend-OS APIs and hardly anyone would notice, but what about things like viewport size and font rendering? You can't exactly hide them from a website.

For viewport, you can limit the size presented to the page to a few sizes with different aspect ratios. Browsers can simply rescale the page to the actual window size for display on the screen. That also works for font rendering. If users decide they want pixel-perfect display, they can either resize the window to one of the allowed sizes or disable this feature for a specific page.

You are describing the "compromising the user experience" alternative.

Re: Web fingerprinting is worse than I thought

#513
post #370

Earlier quoted context omitted.

> It's not that easy to "present a fingerprint" without compromising the user experience. And that's exactly what I'm talking about. > what about things like viewport size and font rendering? Not much can be done about viewport size, but a browser could easily ship with 2 fonts (one serif and one sans serif) and only allow access to those.

“Font rendering” is a different thing than “what fonts you have.” Font rendering is about how fonts are drawn to the screen. The trick is to draw some words to a and then pixel-peep the result. Different OSes and browsers use different font renderers and font hinting logic; fonts will even render differently on a different-DPI screen.

Different browsersare always distinguishable but a single browser could choose to always use the same font rendering code and settings, at least for private browsing.

Re: Web fingerprinting is worse than I thought

#514

Earlier quoted context omitted.

We need 2 classes of web. One for document based that doesn't require JS to run (secure). Insecure, all the SPA and anything that require JS to see the full content.

> We need 2 classes of web. One for document based that doesn't require JS to run (secure). I've wondered for a long time if a sort of posh gopher based on markdown with extensions would be able to make a comeback. Especially if it allowed for CSS.

Why not just good old web 1.0 or even HTML5 without javascript. There are alreay plenty of pages that conform to that, you just need the client enforcement (also already available via extensions) and marketing/lobbying so that big organizations switch to it.

Re: Web fingerprinting is worse than I thought

#515

Earlier quoted context omitted.

> We need 2 classes of web. One for document based that doesn't require JS to run (secure). I've wondered for a long time if a sort of posh gopher based on markdown with extensions would be able to make a comeback. Especially if it allowed for CSS.

You're sort of describing Gemini. https://en.wikipedia.org/wiki/Gemini_(protocol)

Except that is too limited even for a document web.

Re: Web fingerprinting is worse than I thought

#516
post #4

It's important to know that the mentioned "resistFingerprinting" breaks a lot of the web. Examples include the back button, uploading photos on some websites uploads random data instead of the photo, etc.

It also tells websites that you want a light color scheme (instead of not indicating any preference).

Re: Web fingerprinting is worse than I thought

#517
post #148

Earlier quoted context omitted.

"Some site operators can make a believable argument that they use it in ways that are good for society." Example please

My bank phoned me last summer. I'd authenticated with my usual two factors but a new browser fingerprint, then transferred a large sum to a new recipient. The bank blocked the transfers I did thay day, then phoned me to check whether I'd been phished, suffered a keylogger attack or something.

So you were inconvenienced as a result of a false positive derived from tracking. Hardly a great argument.

Re: Web fingerprinting is worse than I thought

#518
post #404

Earlier quoted context omitted.

That is literally what GDPR is. Somehow it got reduced to cookie banners in HN psyche, but the whole idea of GDPR is to make sure that the data can be collected and used for well defined purposes that are either necessary to provide a service (preventing CC fraud would qualify), or are explicitly consented to.

I think the misunderstandings about the GDPR (even many smart people don't get it) prove that designing and writing such a law is difficult and the result has to be complex. IMO the GDPR is good. But… it is poorly understood by many affected people . IMO if a law is poorly understood by the people it affects, then one should assume the law to be at fault, not the people. IMO it's good but I'm not happy. 4×IMO! Wow.

> IMO the GDPR is good. But… it is poorly understood by many affected people . IMO if a law is poorly understood by the people it affects, then one should assume the law to be at fault, not the people.

You are assuming that it has to be either of them who is at fault. In reality there are third-parties who have been spewing FUD in order to confuse people about the law.

Re: Web fingerprinting is worse than I thought

#519
post #123
post #75

Why is this being fought with technical measures (which are ineffective and cripple the web as a platform) instead of legal consumer law where you can easily fine and punish companies that do the fingerprinting? EDIT: Note that you can do BOTH - but one without the other is just a game of whack-a-mole.

Laws only apply in some countries. The internet is global. Technical measures are faster, more effective, and can be applied in all places.

Laws can be as global as those in power want them to be. See e.g. copyright.

Re: Web fingerprinting is worse than I thought

#520

Earlier quoted context omitted.

In fact, the disablement of JavaScript itself is a very identifying characteristic.

Its one added bit versus countless bits that can no longer be probed. Yeah disabling JS alone is not enough but it is not useless either.

Not all bits have an equivalent distribution. If very few people have that bit set then it is very differentiating.
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