> A ZKP will work as a base, but the proof mechanism will have to be combined with anti-user measures like device attestation to prevent things like me offering an API to continually sign requests for strangers
Spot on! The "technical" proposal from Google of a ZKP system is best seen as technically-disingenuous marketing meant to encourage governments to mandate the use of Google's locked down devices and user-hostile ecosystem.
The only sane way to implement this is to confine the locked-down computing blast radius to the specific devices that need child protection, rather than forcing the restrictions onto everyone.
Spot on! The "technical" proposal from Google of a ZKP system is best seen as technically-disingenuous marketing meant to encourage governments to mandate the use of Google's locked down devices and user-hostile ecosystem.
The only sane way to implement this is to confine the locked-down computing blast radius to the specific devices that need child protection, rather than forcing the restrictions onto everyone.