def dataReceived(self, data):
global is_authenticated
if is_authenticated:
print str(datetime.utcnow()) + " -- Decrypting Message:"
print data
mac = data[-64:]
data = data[:-64]
data = aes.decrypt(data, str(k_s))
hmac = aes.hmac(data, str(k_s))
if mac == hmac:
self.factory.app.print_message("Other: " + data)
else:
self.factory.app.print_message("Integrity Check fails")
else:
if mode == "Server":
global is_client_initializing
if is_client_initializing == False:
connection = self.factory.app.connection
rslt = server_reply(conn=connection,recvMsg=data)
is_client_initializing = True;
self.factory.app.print_message(str(datetime.utcnow()) + " -- Received \"ClientInit\",ClientNounce from client")
connection.write(rslt)
else:
self.factory.app.print_message(str(datetime.utcnow()) + " -- Authentication is done")
server_recv(data)
is_authenticated = True
is_client_initializing = False;
else:
connection = self.factory.app.connection
rslt = client_reply(recvMsg=data)
is_authenticated = True
self.factory.app.print_message(str(datetime.utcnow()) + " -- Server Sent Nounce")
self.factory.app.print_message(str(datetime.utcnow()) + " -- Authentication is done")
connection.write(rslt)
def send_message(self):
msg = self.message.text
if True:
#try:
self.connection
self.print_message("Me: " + msg)
if msg and self.connection:
text = aes.encrypt(msg, str(k_s))
hmac = aes.hmac(msg, str(k_s))
print str(datetime.utcnow()) + " -- Encrypthing messsages"
print msg
print ""
self.connection.write(text + hmac)
self.message.text = ""