[kyledrake]

Update: I just tried to get it to work and surprise! It doesn't work.

Somebody please just give me access to the PhotoDNA code, the hashes, and a little funding. I'll make an API anybody can use for this. It's ridiculous how hard it is to do this. It's still easier for people to get spam IP lists than to see if CP is being uploaded to their servers. You can't just have it available for Facebook and Google or it doesn't work, you need to make it available to everybody in an easy, simple way.

Seriously, if you are connected with this at all or want to fund this work please email me, I am more than happy to work on improving this: [e-mail].

[toomuchtodo]

Contact this person. He manages Microsoft's Safety Services division, which includes PhotoDNA.

https://www.linkedin.com/pub/john-scarrow/6/2b8/354

[UserRights]

Would you like to describe what did not work? What was your experience? Please blog about this!

[contingencies]

On the other hand, if everyone uses the same non-transparent list of magic hashes to ban hosting images then censorship potentially becomes a concern.

[Reef]

If non-CP images start being blocked by this system, some gallery author is going to notice it pretty quickly and report it to the website owner. This censorship problem is remarkably easy to destroy the trust of the CP filter and I doubt people at Microsoft would fail to predict this.