• BlameThePeacock@lemmy.ca
    link
    fedilink
    arrow-up
    1
    ·
    edit-2
    1 year ago

    Even that isn’t possible. While you could confirm it hasn’t been modified via hashing, it can only confirm that after it was created. If you created an entirely new file there’s no way to prove it wasn’t faked and then had a signature applied.

    • Buddahriffic@lemmy.world
      link
      fedilink
      arrow-up
      1
      ·
      1 year ago

      Also, what’s to stop you from generating new hash information that is consistent with the new media if you do modify an existing one?

      • BlameThePeacock@lemmy.ca
        link
        fedilink
        arrow-up
        0
        arrow-down
        1
        ·
        1 year ago

        The timestamp of the original hash being sent to a central server.

        That’s the whole point of sending that hash close to when it happens.