Comment GOVERNMENT! but you have to help! (Score 1) 134
I've talked with officials in the USA for almost 20 years now and their eyes glaze over. They don't understand any of it and won't put in the mental effort unless YOU complain to them! They need to be motivated; even if they like the sound of your ideas it's too much effort to bother. It's complex sounding computer junk and math to them.
Government can easily give you a free online digital ID.
They must also provide a 2nd ID that only verifies your age without your identity. I always suggested a photo of your face with digital signature. Low resolution digital image. Height, eye color... basics; maybe I should have pushed for an abstract like Nintendo Miis... photo ID isn't precise and in this use it can't be otherwise you are too easily identifiable.
This way it could be used on paper or phone; not fool proof but enough for a bar to verify drinking age - they look at your photo and the birthdate already which isn't secure but good enough. Online, it would verify age; it may or may not use the photo. Obviously, this info can be stolen or a similar face or faked face could be used -- making the face check just a tiny hurdle; but the signature information would be like a copy/paste password and works as long as that is kept private. Most children would be stopped and that is the main purpose. Reasonably CHILDPROOF.
Offline use is a must. This means the government has no idea what you are doing either... within reason. rotating keys etc. can make it harder to track.
The government is exactly the perfect place to do all this. They need to verify your gov ID already to issue that; they put all that into computers already. This would be an extension with a system where your authentication and identity are separated by the non-profit entity already required for identity use.
Driving could also be part of this. Citizenship could also be part of this-- including the anonymous one.
Have a key/password? authentication. possession is authentication.
Should you have the key? Identification.
2 different things usually linked. whats your name? if I don't ask for proof, it's just your ID.
This should involve support for USB encryption keys. they don't have your ID. Only hand out credentials to people over 18. The authentication is this is ONLY for the key itself not the ID. Revoking keys should be easy; if your kid gets your authentication key you need to get a new one. The only good solution I have is to make you renew the key every year... DMV is a good place for this.