An IETF protocol (RFCs 9576-9578) enabling anonymous token-based authentication, used by Apple Private Access Tokens.
Privacy Pass (RFCs 9576-9578) enables anonymous token-based authentication. Already deployed at scale through Apple Private Access Tokens.
Token issuance and redemption are cryptographically unlinkable. Particularly relevant for age verification with double anonymity requirements.
An identity verification approach where a trusted provider issues a cryptographic attestation about a user's attributes without transferring the underlying personal data.
A cryptographic technique allowing users to share specific attributes from a credential without revealing all information it contains.
