This hashing algorithm was extracted from the Rustc compiler. This is the same hashing algoirthm used for some internal operations in FireFox. The strength of this algorithm is in hashing 8 bytes at a time on 64-bit platforms, where the FNV algorithm works on one byte at a time.
It is not a cryptographically secure hash, so it is strongly recommended that you do
not use this hash for cryptographic purproses. Furthermore, this hashing algorithm was
not designed to prevent any attacks for determining collisions which could be used to
potentially cause quadratic behavior in
HashMaps. So it is not recommended to expose
this hash in places where collissions or DDOS attacks may be a concern.