Comment on Google will use hashes to find and remove nonconsensual intimate imagery from Search
gian@lemmy.grys.it 5 weeks agoThey 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.
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