Need a hash function to create 32 bit value out of ipv6 16 Byte address and TCP 2 Byte port numbers

Question

I want to create a hash value of 32 bit. I have 16 byte source and destination ipv6 addresses and 2 byte source and destination port numbers.

32 bit Output = (Src IP,Dst Ip,Src Port,Dest Port)

It would be better if the hash function distribute the entities well along the 32 bit space. I want to use the result as an index.

Resit

Answer 1

Another, may be useful references:

General Purpose Hash Function Algorithms

CityHash by Google

Note that, it is very hard to make a no collision guaranteed hash function (no different input result in the same hash code). There are many solutions to this problem, most simple one is the open addressing.

Open Addressing