h = keyHash (X) generates a uint64 scalar that represents the input X, which may be numeric, logical, or character array or cell array of character vectors. keyHash utilizes the 64-bit FMV-1a variant of the Fowler-Noll-Vo non-cryptographic hash function.

h = keyHash (X), base also generates a 64-bit hash code using base as the offset basis for the FNV-1a hash algorithm. base must be a uint64 integer type scalar. Use this syntax to cascade keyHash on multiple objects for which a single hash code is required.

Note that unlike MATLAB, this implementation does no use any random seed. As a result, keyHash will always generate the exact same hash key for any particular input across different workers and Octave sessions.

Source Code: keyHash