'The constructor of the `ProtocolState\' class.
The four class variables are initialised.'

def __init__(self, masterKey, issueDate=int(time.time())):

    self.identifier = const.TICKET_IDENTIFIER
    self.masterKey = masterKey
    self.issueDate = issueDate
    self.pad = '\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'
