Fast IDentity Online with Anonymous Credentials (FIDO-AC). (arXiv:2305.16758v1 [cs.CR])

Web authentication is a critical component of today's Internet and the
digital world we interact with. The FIDO2 protocol enables users to leverage
common devices to easily authenticate to online services in both mobile and
desktop environments following the passwordless authentication approach based
on cryptography and biometric verification. However, there is little to no
connection between the authentication process and users' attributes. More
specifically, the FIDO protocol does not specify methods that could be used to
combine trusted attributes with …

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