Any government who wants to bring 2FA to its citizens.

Shipping a national backdoor is an entirely different topic. Please focus on the use case at hands.

I think that issue is central. You're describing a scheme with a central, trusted authority distributing keys. The question is, what's a central authority we can all trust? I think many people wouldn't trust any government. At that point, the design crumbles.

Well. You trust your government to issue national ID card and e-passports already.

I'm guessing you are from Europe because the idea of distrusting your government appears to be really foreign to you. According to Wikipedia, "The passport possession rate of the U.S. was approximately 39% of the population in 2015."

Yeah I am.

I guess that makes sense. People in the UK don't have any "national ID card". Must be a culture thing.

I guess that makes sense. That's why I have to go through fucking stupid private background check agencies for everything in the UK.

Do you think only 39% of Americans because the other 61% are all terrified of their government? Or might it be because international travel is a luxury not everyone can afford?

> distrusting your government appears to be really foreign to you.

That "U.S. Government" collecting, indexing and analyzing all data of any citizen must be an entirely different entity from the "United States Government" after all.

The US has strange hangups about national IDs.

Those are identification. Carrying a passport doesn't let anyone listen in on my inane banter with my friends.

Just because I have and use such passport does not mean I think its a good idea or trust it completly.