• devils_advocate@lemmy.ml
    link
    fedilink
    arrow-up
    2
    arrow-down
    1
    ·
    1 year ago

    Zero knowledge proof. Trusted issuer issues proof of birthdays. User submits proof of minimum age without disclosing additional information.

    • argv_minus_one@beehaw.org
      link
      fedilink
      arrow-up
      4
      ·
      1 year ago

      That would require you to disclose proof of your real-life identity to some dubious company for the purpose of unlocking porn. Definitely not privacy-preserving.

      • devils_advocate@lemmy.ml
        link
        fedilink
        arrow-up
        2
        arrow-down
        1
        ·
        1 year ago

        The company you disclose your age and online reference to doesn’t need to know how their confirmation will be used. It could be an entity already knowledgeable (DVLA, IRS).

        But yes, if porn is the only use case then this method is self incriminating.

        • argv_minus_one@beehaw.org
          link
          fedilink
          arrow-up
          4
          ·
          1 year ago

          But yes, if porn is the only use case then this method is self incriminating.

          That is precisely the problem. It will mostly or only be used for porn.

          • MachineFab812
            link
            fedilink
            arrow-up
            1
            ·
            1 year ago

            Not really. Most social media involves some rudimentary age verification, even though their age threshold is lower. Same goes for banking and interacting with government sites. Far from the only ones.