> But that'd require mandatory authentication on all recording devices, which is rather frightening from a privacy perspective. Yes inherently scary, but is th

> But that'd require mandatory authentication on all recording devices, which is rather frightening from a privacy perspective. Yes inherently scary, but is there a solution to still allow a user to maintain control as to when they give up their privacy? Ex. a 3rd party escrow service that will authenticate a video belongs to a user without revealing who the user is? Or some other key sharing scheme that allows users to decide when they want to take ownership of a whistle-blower video or some other govt corruption video in a repressive country? I'm not a public key crypto expert, but I can't imaging this is the first time user controlled authentication has been investigated. The requirement would be that everything is always signed, but (through key chaining, sharing...) a user gets to decide if they reveal their association to it.