On: A new way to detect ‘deepfake’ picture editing

[rspeele]

What can crypto verify here exactly? What stops me from:

A. Writing my own software "camera" that does the same gyrations a real camera would do to sign its raw image, but applied to an arbitrary unverified image file on my computer?

or

B. Printing out an unverified picture and taking a picture of that picture (with good lighting etc so that it is not obvious), with a camera that makes it verified "real"?

[recursive → rspeele]

A. wouldn't work because there would presumably be a private key or something.

B. seems like it would work.