def main(): generated_key = key_exchange() key = format_key(generated_key) enc_pass = encrypt(password, key) send(enc_pass) enc = read() flag = decrypt(enc, key)
def user1():
with sock(HOST, PORT) as s:
force_login(s, 'a')
sleep(0.5)
send(s, "challenge", {'other_username': '******'})
sleep(0.5) # wait to accept
recv(s) # recieve begin_match
def key_exchange():
secret = randint(2**1000, 2**1001)
gx = int_from_bytes(read())
gy = pow(dh_g, secret, dh_mod)
send(int_to_bytes(gy))
key = pow(gx, secret, dh_mod)
return key
def send():
data = request.json or request.form
c = clients[data['token']]
msg = data['msg']
to = data['to']
lib.send(c, to, msg)
data = {'status': 'ok'}
return jsonify(data)
def get(self, token):
if not token.lower().startswith('p_'):
raise tornado.web.HTTPError(404)
obj = lib.lookup_token(token)
if not obj or not obj.active:
raise tornado.web.HTTPError(404)
msg = self.render_string(obj.format, post_json=None)
lib.send(obj.jid, msg)
def post(self, token):
if not token.lower().startswith('p_'):
raise tornado.web.HTTPError(404,log_message='Not a post token')
obj = lib.lookup_token(token)
if not obj or not obj.active:
raise tornado.web.HTTPError(404,log_message='Not active or instantiated token')
msg = self.render_string(obj.format, json_decode = tornado.escape.json_decode)
lib.send(obj.jid, msg)
def main():
generated_key = key_exchange()
key = format_key(generated_key)
enc_pass = read()
dec_pass = decrypt(enc_pass, key)
if dec_pass != password:
print("wrong password, terminating")
return
enc = encrypt(flag, key)
send(enc)
def post(self, token):
obj = lib.lookup_token(token, self.current_user)
if not obj:
raise tornado.web.HTTPError(404)
if self.get_argument('action.update_alias', None):
alias = self.get_argument('alias')
if obj.alias != alias and alias:
obj.alias = alias
obj.put()
lib.send(obj, '/alias %s' % alias)
elif self.get_argument('action.partychat_migration', None):
obj.jid = obj.jid.replace('at.partych.at', 'im.partych.at')
obj.put()
elif self.get_argument('action.new_post_hook', None):
t = model.PostHook(
token=lib.get_new_token('post'),
jid=obj
)
t.put()
elif self.get_argument('action.update_post_hook', None):
hook_token = self.get_argument('token')
if hook_token.lower().startswith('p_'):
t = lib.lookup_token(hook_token, self.current_user)
if t:
t.format = self.get_argument('format')
t.put()
elif self.get_argument('action.new_receive_hook', None):
t = model.ReceiveHook(
token=lib.get_new_token('receive'),
jid=obj)
t.put()
elif self.get_argument('action.update_receive_hook', None):
hook_token = self.get_argument('token')
if hook_token.lower().startswith('r_'):
t = lib.lookup_token(hook_token, self.current_user)
if t:
t.endpoint = self.get_argument('endpoint')
t.command = self.get_argument('command') or '*'
t.put()
elif self.get_argument('action.activate', None):
hook_token = self.get_argument('action.activate')
t = lib.lookup_token(hook_token, self.current_user)
if t:
t.active = True
t.put()
elif self.get_argument('action.deactivate', None):
hook_token = self.get_argument('action.deactivate')
t = lib.lookup_token(hook_token, self.current_user)
if t:
t.active = False
t.put()
self.redirect('/edit/' + obj.token)
def user1():
with sock(HOST, PORT) as s:
force_login(s, 'a')
sleep(0.2) # wait for the other user to conect
send(s, "challenge", {'other_username': '******'})
recv(s) # recive fail response
send(s, "challenge", {'other_username': '******'})
recv(s) # challenge refused
send(s, "challenge", {'other_username': '******'})
recv(s) # match_begin
def user2():
with sock(HOST, PORT) as s:
force_login(s, 'b')
r = recv(s) # recieve challenge
send(s, 'accept_challenge', {'id': 10000}) # accept fake challenge
recv(s) # recive fail response
send(s, 'refuse_challenge', {'id': r[1]['challenge_id']}) # refuse real challenge
r = recv(s) # recieve challenge
send(s, 'accept_challenge', {'id': r[1]['challenge_id']}) # refuse real challenge
recv(s) # match_begin
import lib as protocol
#import random
if __name__ == "__main__":
n = 22
g = 42
# x = random.random()
# initKey = (g**x) % n
proto_handler = protocol.socket()
protocol.connect_to(proto_handler, 'localhost', 50)
value = protocol.receive(proto_handler)
# computedKey = (float(protocol.receive(proto_handler))**x) % n
print(value)
value = 'Message №2'
protocol.send(proto_handler, value)
val_new = protocol.receive(proto_handler)
protocol.send(proto_handler, val_new + 'Last message')
print(val_new)
def user2():
with sock(HOST, PORT) as s:
force_login(s, 'b')
r = recv(s) # recieve challenge
send(s, 'accept_challenge', {'id': r[1]['challenge_id']})
recv(s) # recieve begin_match
import lib as protocol
if __name__ == "__main__":
n = 22
g = 42
# x = random.random()
# initKey = (g**x) % n
server_handler = protocol.server_socket("localhost", 50)
# listening for connections
protocol.receive(server_handler)
# computedKey = (float(protocol.receive(proto_handler))**x) % n
value = 'Message №1'
print(value)
protocol.send(server_handler, value)
value = protocol.receive(server_handler)
print(value)
value = 'Message №3'
protocol.send(server_handler, value)
val_new = protocol.receive(server_handler)
print(val_new)