@thomasfuchs I read the proposal (FWIW I have significant experience with FIDO and other attestation/signing type things like it).
I can’t see how this could work in reality? Like almost all crypto things, it boils down to key distribution. For the scheme to work, there has to be a private key that signs things, for the server to verify. But where are they going to put the private key that something like an adblocker can’t just steal it?
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@thomasfuchs
Apple+iOS/macOS can do it because they have end to end control of the whole stack, right down to secure hardware key storage *including hardware manufacturing*
Android phones also could, if they were motivated to. But any PC running windows or Linux, and probably also Chromebooks, literally don’t have a way to securely distribute such a private key.
🤷 as such, this doesn’t seem worrisome, rather someone’s academic plaything.