def init(self):
self.length = <NUM_LIT:0><EOL>self.input = []<EOL>self.H0 = <NUM_LIT><EOL>self.H1 = <NUM_LIT><EOL>self.H2 = <NUM_LIT><EOL>self.H3 = <NUM_LIT><EOL>self.H4 = <NUM_LIT><EOL>
Initialize the message-digest and set all fields to zero.