Comment on Google will use hashes to find and remove nonconsensual intimate imagery from Search

LorIps@lemmy.world ⁨5⁩ ⁨weeks⁩ ago

• gian@lemmy.grys.it ⁨5⁩ ⁨weeks⁩ ago

  They say to use PDQ for images which should output a similar hash for similar images (but why MD5 for video ?). So probably it is only a threshold problem.
  The algorithm is explained here

  https://raw.githubusercontent.com/facebook/ThreatExchange/main/hashing/hashing.pdf

  it is not an hash in the cryptographic sense.

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  • LorIps@lemmy.world ⁨5⁩ ⁨weeks⁩ ago

    There was a github thread about this when it came up for CSAM, they managed to easily circumvent it. I’m rather confident this will end up similarly

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