Comment on Google Search To Show If An Image Is AI Generated, Edited Or Taken With Camera.

• WolfLink@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

  It’s not that simple. Hash the image, then sign the hash with digital signature key. Anyone will know the image has been tampered with, and you can’t make a new signature without the signing key.

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  • cmnybo@discuss.tchncs.de ⁨1⁩ ⁨month⁩ ago

    Cameras don’t cryptographically sign the images they take. Even if that was added, there are billions of cameras in use that don’t support signing the images. Also, any sort of editing, resizing, or reencoding would make that signature invalid. Almost no one is going to post pictures to the web without any sort of editing. Embedding 10+ MB images in a web page is not practical.

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    • WolfLink@sh.itjust.works ⁨1⁩ ⁨month⁩ ago

      We aren’t talking about current cameras. We are talking about the proposed plan to make cameras that do cryptographically sign the images they take.

      Here’s the link from the start of the thread:

      arstechnica.com/…/google-seeks-authenticity-in-th…

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