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- W4385692020 abstract "FIDO2 is becoming a defacto standard for passwordless authentication. Using FIDO2 and WebAuthn, web applications can enable users to associate cryptographic credentials to their profiles, and then rely on an external authenticator (e.g., a hardware token plugged into the USB port) to perform strong signature-based authentication when accessing their accounts. The security of FIDO2 has been theoretically validated, but these analyses follow the threat model adopted in the FIDO2 design and explicitly exclude some attack vectors as being out of scope. In this paper we show that two of these attacks, which appear to be folklore in the community, are actually straightforward to launch in practice (user PIN extraction, impersonation and rogue key registration). We demonstrate a deployment over vanilla Linux distributions and commercial FIDO2 authenticators. We discuss the potential impact of our results, which we believe will contribute to the improvement of future versions of the protocol." @default.
- W4385692020 created "2023-08-10" @default.
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- W4385692020 date "2023-08-29" @default.
- W4385692020 modified "2023-09-27" @default.
- W4385692020 title "Rogue key and impersonation attacks on FIDO2: From theory to practice" @default.
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- W4385692020 doi "https://doi.org/10.1145/3600160.3600174" @default.
- W4385692020 hasPublicationYear "2023" @default.
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