def test_generation_perf(n=100):
results = OrderedDict()
for bits in (192, 224, 256, 384, 521):
t = time.time()
for i in xrange(n):
k = Key.generate(bits)
t = time.time() - t
results[bits] = t
return results
def test_signing_perf(n=100):
results = OrderedDict()
for bits in (192, 224, 256, 384, 521):
k = Key.generate(bits)
t = time.time()
for i in xrange(n):
k.sign('random string')
t = time.time() - t
results[bits] = t
return results
idB = '00000002'
token = 0
# TCP connection to responder B
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
sock.setblocking(1)
print('begin connection')
sock.connect((server_ip, server_port))
try:
while (token == 0):
print('connection up')
print('connected')
# 1. A send M1=(PKax,PKay) to B
time1 = time.time()
keypair = Key.generate(192)
PKax = keypair._pub[1][0]
PKay = keypair._pub[1][1]
PKa = (PKax, PKay)
SKa = keypair._priv[1]
time2 = time.time()
M1 = str(PKax) + ',' + str(PKay)
sock.send(M1.encode())
# 3. A receive M2, send Na
M2 = sock.recv(1024).decode()
PKbx = M2.split(',')[0]
PKby = M2.split(',')[1]
cb = M2.split(',')[2]
PKb = (int(PKbx), int(PKby))
print('Listen to the connection from client...')
sock.listen(5)
try:
while (token == 0):
connection, address = sock.accept()
print('Connected. Got connection from ', address)
# 2. B side: 1)receive M1 from A, 2)generate my keypair 3) send M2
# 2.1) receive M1=(helloA,PKax,PKay) from A
M1 = connection.recv(1024).decode()
helloA = M1.split(',')[0]
PKax = M1.split(',')[1]
PKay = M1.split(',')[2]
PKa = (int(PKax), int(PKay))
# 2.2) generate my keypair
keypair = Key.generate(256)
PKbx = keypair._pub[1][0]
PKby = keypair._pub[1][1]
SKb = keypair._priv[1]
# 2.3) B->A: M2=(helloB,PKbx,PKby)
M2 = 'helloB' + ',' + str(PKbx) + ',' + str(PKby)
connection.send(M2.encode())
# 4. B side: 1) receive M3 from A 2) verify ecdsa signature sa 3) compute ecdsa signature sb 4)send M4
# 4.1) receive M3=sa from A
M3 = connection.recv(1024).decode()
sa_0 = M3.split(',')[0]
sa_1 = M3.split(',')[1]
sa = (int(sa_0), int(sa_1))
# 4.2) verify sa
hstringa = helloA + str(PKax) + str(PKay)
print('Listen to the connection from client...')
sock.listen(5)
try:
while (token==0):
connection, address = sock.accept()
print('Connected. Got connection from ', address)
# 2. B receive M1 from A,generate my keypair, generate Nb, compute Cb, send M2
M1 = connection.recv(1024).decode()
PKax= M1.split(',')[0]
PKay = M1.split(',')[1]
PKa = (int(PKax), int(PKay))
time1 = time.time()
keypair = Key.generate(521)
PKbx = keypair._pub[1][0]
PKby = keypair._pub[1][1]
SKb = keypair._priv[1]
# generate random number Rb1
Rb1 = random.randint(10000000, 999999999)
# calculate random number Rb2
Rb2 = SKb - Rb1
# calculate the same shared key
Kb1 = mul(c_p, c_q, c_n, PKa, Rb1)
Kb2 = mul(c_p, c_q, c_n, PKa, Rb2)
Kb = add(c_p, c_q, c_n, Kb1, Kb2)
Nb = random.randint(000000,999999)