Aspiring polymath. Applied R&D @ Privacy and Scaling Explorations #maker #Ethereum🦇🔊🐼🐍🟨🦀 Trying to make the internet better. Opinions are my own and subject to change

  • 2 Posts
  • 50 Comments
Joined 2 years ago
cake
Cake day: June 20th, 2023

help-circle


  • Just some background on the cryptography going on:

    Its a hash of a fingerprint of your iris that isn’t used for access, it’s used for Sybil resistance, which is a bit different. You wouldn’t use this to prove you are eligible to vote, only that you haven’t voted already for a specific election.

    Under the hood, the iris scanning ball thing is just adding you to a membership registry. When you actually go to use your membership, you are generating a semaphore proof, which is a zero knowledge proof that you are in the registry with some nullification output so you can only participate in certain events some number of times (like voting once). You wouldn’t use this by itself to prove that you are eligible to vote.

    Generating secret keys from public data (iris)

    These aren’t exactly secret keys, but, yes, I agree. Also the Minority Report vibes weird me out.





  • **Get a Bambu printer. Do not get an ender. **

    I own quite a few 3d printers and got into it in the late 2000s with MakerBot. I have learned a lot, and have tried to drag friends into the hobby, and most of them have been highly frustrated until Bambu came along.

    Please, just get a Bambu printer, right now nothing else compares. Bambu isn’t fully FOSS (firmware isn’t) but people are working on open source firmware. Their slicer software is open source.

    For printing anything for a car, don’t use PLA, I’d suggest PETG, ABS, ASA, or Nylon if you get a printer that can handle that (prob more than $300). PLA will warp in a car from heat/sunlight.

    A Bambu A1 is $340 without the AMS lite. If you get that and like it, I’d recommend getting the AMS lite so you can do multi color and multi material prints. It can handle PLA and PETG which should meet most hobby needs. If you want to get into actually doing robotics stuff with it more seriously, sell the A1 and get a P1P.