import zlib
s = b'witch which has which witches wrist watch'
len(s)
t = zlib.compress(s)
len(t)
zlib.decompress(t)
zlib.crc32(s)

cbb4abcedab376b6456b44257c7a8bf3e003a0ca
<mask token>

<mask token>
len(s)
<mask token>
len(t)
zlib.decompress(t)
zlib.crc32(s)

<mask token>
s = b'witch which has which witches wrist watch'
len(s)
t = zlib.compress(s)
len(t)
zlib.decompress(t)
zlib.crc32(s)

import zlib
s = b'witch which has which witches wrist watch'
len(s)
t = zlib.compress(s)
len(t)
zlib.decompress(t)
zlib.crc32(s)
