SipHash | secure hashing in Swift with the SipHash algorithm | Hashing library

I used hash function to generate some partition key value in Python 2. I depended on the built in hash function. I did not know that the implementation is not guaranteed to be the same across versions and I should have used Python hashlib library with specified algorithm like md5 or sha256.

In order to progress in moving to python 3, I need the algorithm to continue to work, I wonder whether there is either python code equivalent of the hash function or utilizing hashlib library to generate the result.

Simple use of hashlib algorithms does not seem to use the same answer python 3 use different algorithm sipHash and random seed for string hashing.

--update I tried to run this code in python 2 but it did not work as it generate different result.

I'm following the guide Building The Library, but I have errors. My steps.

1. Set enviroment for x64 with vcvars64.bat.

When I try to cargo build the 'hello world' of amethyst on Ubuntu 18.04, I get an error about missing libraries from lxbcb. I'm not sure what this error is trying to tell me or how to fix it. It seems like I'm missing libraries -lxcb-render, -lxcb-shap, and -lxcb-xfixes, but I can't seem to find them.

The hello world code of amethyst

Why can I not clone a git project, add a main.rs and import one of the structs? The compiler complains that the import is unknown and if I make it known it complains about the library file can't be compiled.

My files

I am looking for a hashing function that can be used for non cryptographic purposes in Java. The challenge is that most of the hashing functions return signed integer values (-,0,+) that cannot be used as identifier in every context (for example negative integers cannot be used in URLs). One solution to this problem is that I come up with is to use a 32 bit signed int and convert it to a 32 bit unsigned int and store it in a long. This works pretty well. However, 32 bit random information makes hash collisions too frequent in our setup. One way of solving this is to use a 64 bit hashing function (same SipHash works fine) and convert that signed integer to unsigned by shifting one to the right and having 0 in the MSB position. I was trying to achieve that with the Java >> operator but the results does not make sense.

This is a followup to my earlier question here. I've been able to get something working per Reid Barton's answer, but I notice in the core I see __pkg_ccall_GC: