The FNV Non-Cryptographic Hash Algorithm
RFC 9923, “The FNV Non-Cryptographic Hash Algorithm”, is an Informational document published in February 2026 by L. Noll, K. Vo, D. Eastlake 3rd, T. Hansen. The canonical text is published by the RFC Editor.
Abstract
FNV (Fowler/Noll/Vo) is a fast, non-cryptographic hash algorithm with good dispersion that has been widely used and is referenced in a number of standards documents. The purpose of this document is to make information on FNV and open-source code performing all specified sizes of FNV conveniently available to the Internet community.
What “Informational” means
Published for the general information of the community. It does not define an IETF standard and carries no standards-track status.
The canonical text of RFC 9923 is hosted at rfc-editor.org. Available in HTML,TXT,PDF,XML.
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