Paper 2024/569 Original: eprint.iacr.org/2024/569 ↗

An overview of symmetric fuzzy PAKE protocols

Johannes Ottenhues
Abstract

Fuzzy password authenticated key exchange (fuzzy PAKE) protocols enable two parties to securely exchange a session-key for further communication. The parties only need to share a low entropy password. The passwords do not even need to be identical, but can contain some errors. This may be due to typos, or because the passwords were created from noisy biometric readings. In this paper we provide an overview and comparison of existing fuzzy PAKE protocols. Furthermore, we analyze certain security properties of these protocols and argue that the protocols can be expected to be slightly more secure in practice than can be inferred from their theoretical guarantees.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2024-04-12: last updated
2024-04-12: published
Short URL
https://ia.cr/2024/569
License
https://creativecommons.org/licenses/by-sa/4.0/

BibTeX

@misc{cryptoeprint:2024/569,
      author = {Johannes Ottenhues},
      title = {An overview of symmetric fuzzy PAKE protocols},
      howpublished = {Cryptology {ePrint} Archive, Paper 2024/569},
      year = {2024},
      url = {https://eprint.iacr.org/2024/569}
}
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