We are already in the reality in which video evidence has equal weight to witness statements, it just requires one serious deepfake framing attempt (later detected) for everyone to internalize that.
What is the key tied to, the person, the organization, or the device? Where do you obtain the public key? Which certificate authorities will you trust to verify the identify of public figures? Will any of this work under wartime conditions when people are moving around, using random webcams and mobile devices?
I see no particular reason why existing diplomatic courier services, chain of trust, and verification procedures can't be used for key exchange. What are the failure modes you are sceptical about?
>Will any of this work under wartime conditions when people are moving around, using random webcams and mobile devices?
Just follow the procedure to establish trust cryptographically, then arrange the meeting by any channel you like.
Don't be naive. Governments can't solve hard technical and social problems just by throwing in more money. If that was true we would have working fusion power by now.
And in some parts of Ukraine, there is effectively no longer any government at all.
No because they also called Vienna and Madrid ;) Apparently the Vienna Mayor didn't notice a thing and even sent out a tweet afterwards. The other two at least got suspicious when the supposed Klitschko asked them weird questions.
