Jenkins hash function

[2] It was originally created to fulfill certain requirements described by Colin Plumb, a cryptographer, but was ultimately not put to use.

Standard implementations of the Perl programming language prior to version 5.28 included Jenkins's one-at-a-time hash or a hardened variant of it, which was used by default.

Note, though, that any speed improvement from the use of this hash is only likely to be useful for large keys, and that the increased complexity may also have speed consequences such as preventing an optimizing compiler from inlining the hash function.

The lookup3 function was incorporated into Hierarchical Data Format 5 as a checksum for internal data structures based on its relative strength and speed in comparison to CRC32 and Fletcher32.

[10] In 2011 Jenkins released a new 128-bit hash function called SpookyHash.