def create(name, description, ends, max_voters, choices):
base = max_voters + int(ceil(max_voters / 10))
pal = Paillier(int(floor(log(base * (base**(len(choices))), 2)) + 4))
pal.generate_keys()
public_key = str(pal.public_key['n']) + "#" + str(pal.public_key['g'])
private_key = str(pal.private_key['n']) + "#" + str(
pal.private_key['g']) + "#" + str(pal.private_key['lam'])
state = Paillier.encrypt(0, pal.public_key)
now = datetime.now()
created = date(now.year, now.month, now.day)
curs.execute("""INSERT INTO poll
(name, description, created, ends, base, choices_num, state, public_key, private_key)
VALUES ('%s', '%s', '%s', '%s', %s, %s, '%s', '%s', '%s')"""
% (name, description, created, ends, base, len(choices),
state, public_key, private_key))
poll_id = curs.lastrowid
i = 1
for choice in choices:
curs.execute("""INSERT INTO choice
(poll_id, choice_id, choice_value)
VALUES ('%s', '%s', '%s')""" %
(poll_id, i, choice))
i += 1
return Poll(poll_id, name, description, created, ends, base, state,
public_key, choices, private_key)
def create(name, description, ends, max_voters, choices):
base = max_voters + int(ceil(max_voters/10))
pal = Paillier(int(floor(log(base*(base**(len(choices))),2))+4))
pal.generate_keys()
public_key = str(pal.public_key['n']) + "#" + str(pal.public_key['g'])
private_key = str(pal.private_key['n']) + "#" + str(pal.private_key['g'])+ "#" + str(pal.private_key['lam'])
state = Paillier.encrypt(0, pal.public_key)
now = datetime.now()
created = date(now.year, now.month, now.day)
curs.execute("""INSERT INTO poll
(name, description, created, ends, base, choices_num, state, public_key, private_key)
VALUES ('%s', '%s', '%s', '%s', %s, %s, '%s', '%s', '%s')"""
% (name, description, created, ends, base, len(choices), state, public_key, private_key))
poll_id = curs.lastrowid
i = 1
for choice in choices:
curs.execute("""INSERT INTO choice
(poll_id, choice_id, choice_value)
VALUES ('%s', '%s', '%s')"""
% (poll_id, i, choice))
i += 1
return Poll(poll_id, name, description, created, ends, base, state, public_key, choices, private_key)
def get_result(self, private_key):
pk = private_key.split("#")
enc_result = Paillier.decrypt(self.state, {
'n': int(pk[0]),
'g': int(pk[1]),
'lam': int(pk[2])
})
return self.update_choices(self.id, self.choices, self.base,
int(enc_result))
def get_result(self, private_key):
pk = private_key.split("#")
enc_result = Paillier.decrypt(self.state, {'n':int(pk[0]), 'g':int(pk[1]), 'lam':int(pk[2])})
return self.update_choices(self.id, self.choices, self.base, int(enc_result))
