CSS/MITM.py at master · yashturkar/CSS · GitHub

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import socket
import time

def AliceMITM():
	# Pretends to be bob
	print "Pretends to be bob"
	s = socket.socket()

	host = socket.gethostname()

	port = 10110

	n = 105
	g = 7
	p = 3

	B = (g**p)%n

	s.bind((host,port))

	s.listen(5)

	conn,addr = s.accept()

	A = conn.recv(1024)
	A = float(A)

	conn.send(str(B))

	Bkey = (A**p)%n

	print "Key between Alice and MITM(bob)"
	print Bkey

def BobMITM():
	# Pretends to be Aice
	print "Pretends to be Alice"
	s = socket.socket()

	host = socket.gethostname()

	port = 10111

	n = 105
	g = 7
	p = 4

	A = (g**p)%n

	s.connect((host,port))

	s.send(str(A))

	B = s.recv(1024)
	B = float(B)

	Akey = (B**p)%n

	print "Key between Bob and MITM(A)"
	print Akey


AliceMITM()
BobMITM()