/
serv.py
58 lines (52 loc) · 1.73 KB
/
serv.py
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import socket
import sys
import serpent
import time
import random
import string
sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
server_address = ('localhost', 10000)
sock.bind(server_address)
sock.listen(1)
key = "12345678901234561234567890123457"
rsa_key = "rsa_key"
iv = "1234567890123456"
def getText(textName):
data = open('./files/' + textName)
return data.read()
def genKey():
return ''.join(random.choice(string.ascii_uppercase + string.digits) for _ in range(len(key)))
while True:
connection, client_address = sock.accept()
try:
while True:
data = connection.recv(16)
print >>sys.stderr, 'received "%s"' % data
if data:
command = data[:8]
info = data[8:]
print >>sys.stderr, 'command ', command
if command == "exit":
print >>sys.stderr, 'goodbye'
connection.close()
sys.exit()
if command[:7] == "gen_key":
print >>sys.stderr, 'generating key'
key = genKey()
elif command[:7] == "get_key":
print >>sys.stderr, 'sending key'
connection.sendall(key)
elif command[:7] == "rec_key":
rsa_key = info
elif command == "get_file":
print >>sys.stderr, 'sending data'
info = getText(info[1:])
serp = serpent.serpent_cbc(key, iv)
connection.sendall(serp.encrypt(info))
break
else:
rsa_key += data
else:
break
finally:
connection.close()