MFKDF: Multiple Factors Knocked Down Flat

ePrint Report: MFKDF: Multiple Factors Knocked Down Flat

Matteo Scarlata, Matilda Backendal, Miro Haller

Nair and Song (USENIX 2023) introduce the concept of a Multi-Factor Key Derivation Function (MFKDF), along with constructions and a security analysis.
MFKDF integrates dynamic authentication factors, such as HOTP and hardware tokens, into password-based key derivation.
The aim is to improve the security of password-derived keys, which can then be used for encryption or as an alternative to multi-factor authentication.
The authors claim …

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