This python library is a Cython wrapper for the original C implementation. quickxorhash is a C library (libqxh) implementing Microsoft's QuickXORHash algorithm.
QuickXORHash is a non-cryptographic hash function that XORs the input bytes in a circular shift pattern, then XORs the least significant bits of the hash with the input length. The canonical representation of the resulting hash is a Base64 encoded string, because hexadecimal is too plebeian.
>>> import quickxorhash
>>> h = quickxorhash.quickxorhash()
>>> h.update(b'hello world')
>>> print(h.digest())
b'h(\x03\x1b\xd8\xf0\x06\x10\xdc\xe1\rrk\x03\x19\x00\x00\x00\x00\x00'
>>> import base64
>>> print(base64.b64encode(h.digest()))
b'aCgDG9jwBhDc4Q1yawMZAAAAAAA='for files, you can use below script
import quickxorhash, base64, sys, os
inf = sys.argv[1]
h = quickxorhash.quickxorhash()
with open(inf, 'rb') as f:
bufsize = 64 * 1024
tempsize = os.stat(inf).st_size
tsize = tempsize
while tempsize > 0:
if tempsize < bufsize:
bufsize = tempsize
buf = f.read(bufsize)
tempsize -= bufsize
h.update(buf)
print(f'\r{int(100 - ((100 * tempsize) / tsize))}%', end='')
print(f'\r{base64.b64encode(h.digest()).decode()}')