Forked from https://github.com/lukeweber/pyskip32 to be "vendored". The version(s) of skip32 available on PyPi are not compatible with Python3 (the C bindings changed between Python2 and Python3). This version updates the C file with some macros to work in both Python2 and Python3 environments. The original README.txt continues below:
Wraps the original c implementation of skip32 by Greg Rose, QUALCOMM Australia with a thin layer of python.
>>> import random
>>> import skip32
>>> key = ''.join(chr(random.randint(0, 255)) for _ in xrange(10))
>>> encrypted = skip32.encrypt(key, 12345)
>>> encrypted
3798503945L
>>> skip32.decrypt(key, encoded)
12345L