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Google implements open source quantum elastic FIDO2 key for the first time

2025-01-27 Update From: SLTechnology News&Howtos shulou NAV: SLTechnology News&Howtos > IT Information >

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CTOnews.com, August 17, Google issued a press release today, working with the Federal Institute of Technology in Zurich to create a unique ECC / Dilithium hybrid signature model and for the first time to implement an open source quantum elastic / anti-quantum (quantum-resistant) FIDO2 security key.

FIDO2 is the second edition of the rapid online authentication framework protocol, which is introduced and maintained by the FIDO Alliance. The specification defines a set of technical architecture of online authentication for password-free authentication and multi-factor authentication (MFA) elements.

Google says quantum resilience is a key step in improving the security of FIDO2, and the team combined ECDSA and Dilithium algorithms to create a new hybrid algorithm.

Dilithium is a digital signature scheme of the cryptographic suite of algebraic lattices (CRYSTAL). It is one of the candidate algorithms for quantum cryptography projects submitted to NIST. It is widely used in various situations because of its strong security and excellent performance.

Google says a hybrid signature approach that combines classical and quantum signatures is not easy, and one of the challenges is to design a sufficiently compact Dilithium implementation for security keys.

Through continuous research, the Google engineering team finally developed an implementation based on the Rust language, which only needs to take up the memory of 20KB and has the potential for high performance.

The original Google report is attached to CTOnews.com, which can be read in depth by interested users.

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