Four years ago I wrote up this: https://github.com/pjlsergeant/multimedia-trust-and-certification https://github.com/pjlsergeant/multimedia-trust-and-certific.

Four years ago I wrote up this: https://github.com/pjlsergeant/multimedia-trust-and-certification https://github.com/pjlsergeant/multimedia-trust-and-certific... which is some thoughts on certifying and signing media