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P1.py
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P1.py
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import socket
from threading import Thread
import multiprocessing
from multiprocessing import Process
import gmpy2
import time
from gmpy2 import mpz
from queue import Queue
# P1:server, P2:server/client, P3:client
server_port1 = 9000
server_port2 = 8000
client_port2 = 8001
client_port31 = 7000
client_port32 = 7001
def rec_msg(tcp_socket, port_num, q12, q13):
str_list = []
while True:
s_data = tcp_socket.recv(1024).decode('gb2312')
# if port_num == client_port31:
# print("ssssssssssss_data = ", s_data, "port_num =", port_num)
if len(s_data) != 0:
for item in s_data:
str_list.append(item)
if item == 'x':
str_data = "".join(str_list[0:-1])
str_list.clear()
if port_num == client_port2:
q12.put(int(str_data))
# print("rec_data_12 =", int(str_data), "port_num =", port_num)
# print("q12.qsize() = ", q12.qsize())
elif port_num == client_port31:
q13.put(int(str_data))
# print("rec_data_13 =", int(str_data), "port_num =", port_num)
# print("q13.qsize() = ", q13.qsize())
else:
raise Exception("Port number error!")
def send_msg(tcp_socket, port_num, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue):
while True:
if port_num == client_port2 and flag_send_1_to_2.value:
c_data = str(data_1_to_2_queue.get())+'x'
tcp_socket.send(c_data.encode('gb2312'))
# print("send_data =", data_1_to_2_queue.value, "port_num =", port_num)
flag_send_1_to_2.value = 0
elif port_num == client_port31 and flag_send_1_to_3.value:
c_data = str(data_1_to_3_queue.get())+'x'
tcp_socket.send(c_data.encode('gb2312'))
# print("send_data =", data_1_to_3_queue.value, "port_num =", port_num)
flag_send_1_to_3.value = 0
else:
pass
def worker(new_socket, port_num, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13, connect_flag_12, connect_flag_13):
new_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
new_socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True) # disable Nalge
if port_num == client_port2:
connect_flag_12.value = 1
print("Connected by P2")
elif port_num == client_port31:
connect_flag_13.value = 1
print("Connected by P3")
else:
raise Exception("Connection error!")
t_send = Thread(target=send_msg, args=(new_socket, port_num, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue))
t_rec = Thread(target=rec_msg, args=(new_socket, port_num, q12, q13))
t_send.start()
t_rec.start()
t_send.join()
t_rec.join()
def server(flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13, connect_flag_12, connect_flag_13):
print("server start")
host = socket.gethostname()
server_socket = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_socket.setsockopt(socket.SOL_SOCKET, socket.SO_REUSEADDR, 1)
server_socket.setsockopt(socket.IPPROTO_TCP, socket.TCP_NODELAY, True) # disable Nalge
server_socket.bind((host, server_port1))
# server_socket.bind(('172.21.176.163', 9999))
server_socket.listen(5)
while True:
new_socket, port_num = server_socket.accept()
p = Process(target=worker, args=(new_socket, port_num[1], flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13, connect_flag_12, connect_flag_13))
p.start()
new_socket.close()
class DPaillier:
def __init__(self, party_index):
self.KeyLength = mpz(128)
self.PartyIndex = party_index
self.PartyNumber = 3
self.PP = mpz(0)
self.pi = mpz(0)
self.qi = mpz(0)
self.a1 = mpz(0)
self.aa1 = mpz(0)
self.b1 = mpz(0)
self.bb1 = mpz(0)
self.ppi = mpz(0)
self.qqi = mpz(0)
self.c0 = mpz(0)
self.c1 = mpz(0)
self.c2 = mpz(0)
self.cc0 = mpz(0)
self.cc1 = mpz(0)
self.cc2 = mpz(0)
self.Ni = mpz(0)
self.N = mpz(0)
self.Q = mpz(0)
self.gg = mpz(0)
def gen_coprime(self, x):
while True:
random_state = gmpy2.random_state(int(time.time()*100000))
coprime = gmpy2.mpz_random(random_state, x)
if gmpy2.gcd(coprime, x) == 1:
return coprime
def pick_pq(self):
pq = mpz(2)
random_state = gmpy2.random_state(int(time.time()*100000))
if self.PartyIndex == 1:
while gmpy2.f_mod(pq, 4) != 3 or (pq - pow(2, self.KeyLength - 1) <= 0):
pq = gmpy2.mpz_random(random_state, pow(2, self.KeyLength))
else:
while gmpy2.f_mod(pq, 4) != 0 or (pq - pow(2, self.KeyLength - 1) <= 0):
pq = gmpy2.mpz_random(random_state, pow(2, self.KeyLength))
return pq
def pick_pp(self):
pp = gmpy2.next_prime(pow(gmpy2.mul(self.PartyNumber, gmpy2.mul(3, pow(2, self.KeyLength - 1))), 2))
return pp
def coefficient_generation(self):
random_state = gmpy2.random_state(int(time.time()*100000))
self.a1 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.aa1 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.b1 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.bb1 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.ppi = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.qqi = gmpy2.mpz_random(random_state, self.PP)
self.c0 = mpz(0)
random_state = gmpy2.random_state(int(time.time()*100000))
self.c1 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.c2 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.cc0 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.cc1 = gmpy2.mpz_random(random_state, self.PP)
random_state = gmpy2.random_state(int(time.time()*100000))
self.cc2 = gmpy2.mpz_random(random_state, self.PP)
def compute_tuple(self):
self.PP = self.pick_pp()
# print("pick PP done")
self.coefficient_generation()
# print("coefficient generation done")
pi1 = gmpy2.f_mod((self.pi + self.a1 * 1), self.PP)
ppi1 = gmpy2.f_mod((self.ppi + self.aa1 * 1), self.PP)
qi1 = gmpy2.f_mod((self.qi + self.b1 * 1), self.PP)
qqi1 = gmpy2.f_mod((self.qqi + self.bb1 * 1), self.PP)
hi1 = gmpy2.f_mod((self.c0 + self.c1 * 1 + self.c2 * 1 * 1), self.PP)
hhi1 = gmpy2.f_mod((self.cc0 + self.cc1 * 1 + self.cc2 * 1 * 1), self.PP)
pi2 = gmpy2.f_mod((self.pi + self.a1 * 2), self.PP)
ppi2 = gmpy2.f_mod((self.ppi + self.aa1 * 2), self.PP)
qi2 = gmpy2.f_mod((self.qi + self.b1 * 2), self.PP)
qqi2 = gmpy2.f_mod((self.qqi + self.bb1 * 2), self.PP)
hi2 = gmpy2.f_mod((self.c0 + self.c1 * 2 + self.c2 * 2 * 2), self.PP)
hhi2 = gmpy2.f_mod((self.cc0 + self.cc1 * 2 + self.cc2 * 2 * 2), self.PP)
pi3 = gmpy2.f_mod((self.pi + self.a1 * 3), self.PP)
ppi3 = gmpy2.f_mod((self.ppi + self.aa1 * 3), self.PP)
qi3 = gmpy2.f_mod((self.qi + self.b1 * 3), self.PP)
qqi3 = gmpy2.f_mod((self.qqi + self.bb1 * 3), self.PP)
hi3 = gmpy2.f_mod((self.c0 + self.c1 * 3 + self.c2 * 3 * 3), self.PP)
hhi3 = gmpy2.f_mod((self.cc0 + self.cc1 * 3 + self.cc2 * 3 * 3), self.PP)
return [[pi1, ppi1, qi1, qqi1, hi1, hhi1], [pi2, ppi2, qi2, qqi2, hi2, hhi2], [pi3, ppi3, qi3, qqi3, hi3, hhi3]]
def send_pq_tuple(self, pq_tuple, send_party_index, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue):
for ctuple in pq_tuple:
# print("ctuple =", ctuple, "send_party_index =", send_party_index)
self.send_data(ctuple, send_party_index, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
def send_data(self, data, party_send_index, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue):
while True:
if party_send_index == 2 and flag_send_1_to_2.value == 0:
# print("send_data = ", data)
data_1_to_2_queue.put(data)
flag_send_1_to_2.value = 1
break
elif party_send_index == 3 and flag_send_1_to_3.value == 0:
data_1_to_3_queue.put(data)
flag_send_1_to_3.value = 1
break
else:
pass
def receive_pq_tuple_list(self, self_pq_tuple_list, q12, q13):
# print("receive_pq.q13.qsize() = ", q13.qsize())
q12_list = []
q13_list = []
while True:
while True:
while not q12.empty():
# print("receive_pq.q12.qsize() = ", q12.qsize())
q12_list.append(mpz(q12.get()))
if q12_list:
if q12_list[-1] == mpz(22221111):
break
if q12_list:
if q12_list[-1] == mpz(22221111):
break
while True:
while not q13.empty():
# print("receive_pq.q13.qsize() = ", q13.qsize())
q13_list.append(mpz(q13.get()))
if q13_list:
if q13_list[-1] == mpz(33331111):
break
if q13_list:
if q13_list[-1] == mpz(33331111):
break
break
return [self_pq_tuple_list[0], q12_list[0:-1], q13_list[0:-1]]
def receive_Ni_list(self, self_Ni, q12, q13):
q12_list = []
q13_list = []
while True:
while True:
while not q12.empty():
# print("receive_Ni.q12.qsize() = ", q12.qsize())
temp = mpz(q12.get())
q12_list.append(temp)
# print("temp = ", temp)
# q12_list.append(mpz(q12.get()))
if q12_list:
if q12_list[-1] == mpz(22221111):
break
if q12_list:
if q12_list[-1] == mpz(22221111):
break
# print("q12_list = ", q12_list)
while True:
while not q13.empty():
# print("receive_Ni.q13.qsize() = ", q13.qsize())
q13_list.append(mpz(q13.get()))
if q13_list:
if q13_list[-1] == mpz(33331111):
break
if q13_list:
if q13_list[-1] == mpz(33331111):
break
# print("q13_list = ", q13_list)
break
return [self_Ni, q12_list[0], q13_list[0]]
def send_pq_tuple_list(self, pq_tuple_list, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue):
self.send_pq_tuple(pq_tuple_list[1], 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11112222, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_pq_tuple(pq_tuple_list[2], 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11113333, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
while True:
if flag_send_1_to_3.value == 0:
break
def share_verification(self, received_pq_tuple_list):
check_flag = 0
if check_flag == 1:
raise Exception("Share verification fails!")
def N_verification(self, Ni_list):
check_flag = 0
if check_flag == 1:
raise Exception("Share verification fails!")
def compute_Ni(self, received_pq_tuple_list):
Ni = gmpy2.f_mod(((received_pq_tuple_list[0][0] + received_pq_tuple_list[1][0] + received_pq_tuple_list[2][
0]) * (received_pq_tuple_list[0][2] + received_pq_tuple_list[1][2] + received_pq_tuple_list[2][2]) + (
received_pq_tuple_list[0][4] + received_pq_tuple_list[1][4] +
received_pq_tuple_list[2][4])), self.PP)
# print("Ni = ", Ni)
return Ni
def compute_N(self, Ni_list):
L1 = mpz(int((0 - 2) * (0 - 3) / ((1 - 2) * (1 - 3))))
L2 = mpz(int((0 - 1) * (0 - 3) / ((2 - 1) * (2 - 3))))
L3 = mpz(int((0 - 1) * (0 - 2) / ((3 - 1) * (3 - 2))))
self.N = gmpy2.f_mod(gmpy2.mul(Ni_list[0], L1) + gmpy2.mul(Ni_list[1], L2) + gmpy2.mul(Ni_list[2], L3), self.PP)
# print("Ni_list = ", Ni_list)
print("Candidate modulus = ", self.N)
def send_Ni(self, Ni, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue):
self.send_data(Ni, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11112222, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(Ni, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11113333, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
while True:
if flag_send_1_to_3.value == 0:
break
def receive_gg(self):
ggt = 0
if gmpy2.jacobi(ggt, self.N) == 1:
self.gg = ggt
else:
raise Exception("gg generation Error!")
def receive_Q_list(self, q12, q13):
q12_list = []
q13_list = []
while True:
while not q12.empty():
q12_list.append(mpz(q12.get()))
if q12_list:
if q12_list[-1] == mpz(22221111):
break
if q12_list:
if q12_list[-1] == 22221111:
break
while True:
while not q13.empty():
# print("receive_Q_list.q13.qsize() = ", q13.qsize())
q13_list.append(mpz(q13.get()))
if q13_list:
if q13_list[-1] == mpz(33331111):
break
if q13_list:
if q13_list[-1] == 33331111:
break
return [self.Q, q12_list[0], q13_list[0]]
def biprimality_check(self, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13):
ggt = self.gen_coprime(self.N)
while gmpy2.jacobi(ggt, self.N) != 1:
ggt = self.gen_coprime(self.N)
self.gg = ggt
self.send_data(self.gg, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11112222, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(self.gg, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11113333, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.Q = gmpy2.powmod(self.gg, gmpy2.f_div((self.N + 1 - self.pi - self.qi), 4), self.N)
self.send_data(self.Q, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11112222, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(self.Q, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11113333, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
while True:
if flag_send_1_to_3.value == 0:
break
Q_list = self.receive_Q_list(q12, q13)
# print("Q_list = ", Q_list)
# print("Q_list = ", Q_list)
Q1 = Q_list[0]
Q2 = Q_list[1]
Q3 = Q_list[2]
Q2_inv = gmpy2.invert(Q2, self.N)
Q3_inv = gmpy2.invert(Q3, self.N)
check_data = gmpy2.f_mod((Q1 * Q2_inv * Q3_inv), self.N)
if check_data == gmpy2.f_mod(mpz(1), self.N) or check_data == gmpy2.f_mod(mpz(-1), self.N):
return True
return False
def start_sync(self, q12, q13):
if self.PartyIndex == 1:
self.send_data(99999999, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11112222, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(99999999, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(11113333, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
elif self.PartyIndex == 2:
self.send_data(99999999, 1, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(22221111, 1, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(99999999, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(22223333, 3, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
elif self.PartyIndex == 3:
self.send_data(99999999, 1, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(33331111, 1, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(99999999, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
self.send_data(33332222, 2, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
else:
raise Exception("PartyIndex Error!")
while True:
if flag_send_1_to_3.value == 0:
break
q12_list = []
q13_list = []
while True:
while not q12.empty():
q12_list.append(q12.get())
if q12_list:
if q12_list[-1] == 11112222:
break
while True:
while not q13.empty():
q13_list.append(q13.get())
if q13_list:
if q13_list[-1] == 33332222:
break
while True:
# print("start sync..............")
if q12_list[0] == 99999999 and q13_list[0] == 99999999:
break
def distributed_RSA_modulus_generation(self, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13):
print("Distributed RSA modulus generation start")
while True:
self.pi = self.pick_pq()
self.qi = self.pick_pq()
# print("pick pq done")
pq_tuple_list = self.compute_tuple()
# print("send_pq_tuple_list = ", pq_tuple_list)
# print("compute pq tuple done")
self.send_pq_tuple_list(pq_tuple_list, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
# print("send pq tuple list done")
received_pq_tuple_list = self.receive_pq_tuple_list(pq_tuple_list, q12, q13)
# print("received_pq_tuple_list", received_pq_tuple_list)
# print("receive pq tuple list done")
self.share_verification(received_pq_tuple_list)
Ni = self.compute_Ni(received_pq_tuple_list)
# print("Ni = ", Ni)
# print("compute Ni done")
self.send_Ni(Ni, flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue)
# print("send Ni done")
Ni_list = self.receive_Ni_list(Ni, q12, q13)
# print("receive Ni list done")
# print("Ni_list = ", Ni_list)
self.N_verification(Ni_list)
self.compute_N(Ni_list)
# print("compute N done")
if self.biprimality_check(flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13):
break
# print("biprimality check done")
# print("q12.qsize() = ", q12.qsize())
# print("q13.qsize() = ", q13.qsize())
# self.start_sync(q12, q13)
if __name__ == "__main__":
flag_send_1_to_2 = multiprocessing.Value('l', 0)
flag_send_1_to_3 = multiprocessing.Value('l', 0)
data_1_to_2_queue = multiprocessing.Queue()
data_1_to_3_queue = multiprocessing.Queue()
q12 = multiprocessing.Queue()
q13 = multiprocessing.Queue()
connect_flag_12 = multiprocessing.Value('h', 0)
connect_flag_13 = multiprocessing.Value('h', 0)
server_process = Process(target=server, args=(flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13, connect_flag_12, connect_flag_13))
server_process.start()
# wait for connection
while True:
if connect_flag_12.value and connect_flag_13.value:
break
# distributed Paillier key generation
start = time.time()
d_paillier = DPaillier(1)
d_paillier.distributed_RSA_modulus_generation(flag_send_1_to_2, flag_send_1_to_3, data_1_to_2_queue, data_1_to_3_queue, q12, q13)
stop = time.time()
print("RSA modulus generation success")
print("modulus = ", d_paillier.N)
print("duration = ", stop - start, "seconds")