secret_key = b"l-1c4)#-y957*&=v"
iv = 16*b'\x00'

64a003bf0a648a8eec84c924a2f5aa92a4f54fd1
<mask token>

secret_key = b'l-1c4)#-y957*&=v'
iv = 16 * b'\x00'

secret_key = b"l-1c4)#-y957*&=v"
iv = 16*b'\x00'
