romeovs

Joined 12 years ago

Karma
136
Submissions
20
Member since
Feb 27
[ my public key: https://keybase.io/romeovs; my proof: https://keybase.io/romeovs/sigs/LRjdZcyZ1KAWisoL4pJem7zwUAGZ3VlGlG6Xulk-8Gk ]
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Recent submissions

Comment · 1 year ago
tesla.sexy contains the following text, which is slightly concerning:

  love your fate
  
  become your own ubermensch
  
  you are the master of your soul
  
  be kind
  
  there is so much to love, so much to live for
  
  follow your heart, ok?
Comment · 2 years ago
Finally we can set up verifiably fair betting!

$10 that the NIST beacon at 1727710980000 will have more than 15 A's in it!

Comment · 3 years ago
Why do you “have to oppose induction” now?
Comment · 3 years ago
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Comment · 4 years ago
My hunch is that it’s not explicitly provided to the website by the browser, but there are ways to measure what the zoom level is using JavaScript on the page.

One could use element.getBoundingClientRect and similar APIs to measure what size certain elements are rendered at and compare that with their default size for instance.

The resulting zoom level can then be used as a signal for fingerprinting.

Comment · 5 years ago
But nothing is stopping the US customs service (or any other service) to store the unencrypted data for later reference right?

I don’t find it farfetched that some big players would have a database that holds basically a huge lookup table that goes from encrypted data to the unencrypted data.

This wouldn’t work on your first visits, but return visitors could have their rfid read like that.

Or do the rfid chips hold some kind of randomness in them so they can do a type of handshake (that is unique every time) where that machine readable password is needed?

Comment · 5 years ago
Oh man, there was a post of a (new?/in preview?) productivity/project planning app on HN recently that I've been looking for in a while since I lost the link.

Hoping that shows up here again. I don't remember the name but the website left an impact. It looked really highly polished (a la Stripe).

Some of the features I remember:

- email integration

- tags and folder for organising projects

- richt text editing

Comment · 5 years ago
That would be more effective! But that's not something Apple is trying to solve here (or could ever solve).

They are trying to prevent CSAM images from being stored and distributed using Apple products. If that goal is easily circumvented, the whole motivation for this (anti-)feature becomes invalid.

I a way, this architecture could potentially even make Apple products more attractive for CSAM distributors, since they now have a known way to fly under the radar (something that is arguably harder/riskier on other image sharing platforms, where the matching happens server-side).

One reasonable strategy Apple could have against that is through constantly finetuning the NeuralHash algorithm to hopefully catch more and more offenders. If that works reasonably well, it might deter criminals from their platform because an image that flies under the radar now might not fly under the radar in the future.

NB. I'm not trying to say Apple is doing the right thing here, especially since the above arguments put the efficacy of this architecture under scrutiny.

Comment · 5 years ago
A lot has been said about using this as an attack vector by possibly poisoning a victims iPhone with an image that matches a CSAM hash.

But could this not also be used to circumvent the CSAM scanning by converting images that are in the CSAM database to visually similar images that won't match the hash anymore? That would effectively defeat the CSAM scanning Apple and others are trying to put into place completely and render the system moot.

One could argue that these spoofed images could also be added to the CSAM database, but what if you spoof them to have hashes of extremely common images (like common memes)? Adding memes to the database would render the whole scheme unmanageable, no?

Or am I missing something here?

So we'd end up with a system that: 1. Can't be reliably used to track actual criminal offenders (they'd just be able to hide) without rendering the whole database useless. 2. Can be used to attack anyone by making it look like they have criminal content on their iPhones.

Comment · 5 years ago
Comment · 5 years ago
Yep! I build this font in FontForge. Such a simple pice of software.
Comment · 5 years ago
Hi everyone, quite unexpected to see this on the frontpage of Hacker News!

I made this so many years ago but I'm not using it myself anymore and I haven't been maintaining it.

I was (and am) also very inexperienced making fonts so the result was "good enough for my own limited use case" but too broken for general use, so it's good to see other people taking it and running with it, fixing my oversights and improving things.

Questions or suggestions are more than welcome.

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