Device Binding for Anonymous Credentials on Legacy Phones↗ (원문, 새 창)

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Digital identity systems are being deployed worldwide to enable secure, privacy-preserving authentication. In this regards, Europe's EUDI Wallet mandates selective attribute disclosure and unlinkable authentication, effectively requiring anonymous credentials. Yet current proposed solutions omit them because they lack device binding: tying a credential to a secure hardware element on the user's device to prevent cloning or sharing. Device binding encodes a device public key in the credential and