def my__mul__(self, other):
"""Multiply by an int, float, or EncodedNumber.
If `other` is a scalar, it is first encoded to fixed-point precision of `self`"""
if isinstance(other, paillier.EncryptedNumber):
raise NotImplementedError('Good luck with that...')
if isinstance(other, paillier.EncodedNumber):
encoding = other
else:
int_rep = int(other * pow(paillier.EncodedNumber.BASE, -self.exponent))
if abs(int_rep) > self.public_key.max_int:
raise ValueError('Integer needs to be within +/- %d but got %d' %
(self.public_key.max_int, int_rep))
# Wrap negative numbers by adding n
encoding = paillier.EncodedNumber(self.public_key,
int_rep % self.public_key.n,
self.exponent)
product = self._raw_mul(encoding.encoding)
exponent = self.exponent + encoding.exponent
unscaled_result = paillier.EncryptedNumber(self.public_key, product,
exponent)
# moving the decimal point to end up having the same number of digits to its right
scaling_multiplier = invert(paillier.EncodedNumber.BASE**(-self.exponent),
self.public_key.n)
scaled_product = unscaled_result._raw_mul(scaling_multiplier)
return paillier.EncryptedNumber(self.public_key, scaled_product,
self.exponent)
def computeData():
data = getData()
mycoef = LinModel().getCoef()
pk = data['public_key']
pubkey = paillier.PaillierPublicKey(n=int(pk['n']))
enc_nums_rec = [paillier.EncryptedNumber(pubkey, int(x[0], int(x[1]))) for x in data['values']]
results = sum([mycoef[i] * enc_nums_rec[i] for i in range(len(mycoef))])
return results, pubkey
def load_encrypted_number(enc_number_file, pub):
ciphertext_data = json.load(enc_number_file)
assert 'v' in ciphertext_data
assert 'e' in ciphertext_data
enc = phe.EncryptedNumber(pub,
int(ciphertext_data['v']),
exponent=ciphertext_data['e'])
return enc
def loadAnswer():
with open('answer.json', 'r') as file:
ans=json.load(file)
answer=json.loads(ans)
return answer
pub_key, priv_key = getKeys()
data = age, he, al, gen = [24,4,6,1]
serializeData(pub_key, data)
datafile=serializeData(pub_key, data)
with open('data.json', 'w') as file:
json.dump(datafile, file)
answer_file=loadAnswer()
answer_key=paillier.PaillierPublicKey(n=int(answer_file['pubkey']['n']))
answer = paillier.EncryptedNumber(answer_key, int(answer_file['values'][0]), int(answer_file['values'][1]))
if (answer_key==pub_key):
print(priv_key.decrypt(answer))
def main():
linmodel.mainLinModel()
servercalc.mainServerCalc()
print(
"Saisissez les donnees sous la forme a,b,c,d avec a,b,c et d 4 entiers"
)
input1 = input()
pub_key, priv_key = cust.getKeys()
data = []
for i in range(4):
print(
input1.split(',')[i], " est chiffré par ",
servercalc.getData().get('values')[i][0][0:12], '...')
data.append(int(input1.split(',')[i]))
cust.serializeData(pub_key, data)
datafile = cust.serializeData(pub_key, data)
with open('data.json', 'w') as file:
json.dump(datafile, file)
answer_file = cust.loadAnswer()
answer_key = paillier.PaillierPublicKey(n=int(answer_file['pubkey']['n']))
answer = paillier.EncryptedNumber(answer_key,
int(answer_file['values'][0]),
int(answer_file['values'][1]))
print(priv_key.decrypt(answer))
# Affichage
window = Tk()
window.title("Simulation")
window.geometry("1920x1060")
window.iconbitmap("hash.ico")
window.config(background='grey')
# premier texte
label_title = Label(window,
text="Simulation",
font=("Courrier, 30"),
bg='Grey',
fg='white')
label_title.grid(row=0, column=2)
label_title = Label(window,
text="Chiffrement homomorphe",
font=("Courrier, 30"),
bg='Grey',
fg='white')
label_title.grid(row=1, column=2)
# second texte
label_subtitle1 = Label(window,
text="① Utilisateur",
font=("Courrier, 25"),
bg='white',
fg='grey')
label_subtitle1.grid(row=2, column=1)
#troisieme texte
label_subtitle3 = Label(
window,
text="Les données entrées par l'utilisateur sont :",
font=("Courrier,25"),
bg='grey',
fg='white')
label_subtitle3.grid(row=3, column=1)
label_subtitle4 = Label(window,
text=data,
font=("Courrier,500"),
bg='grey',
fg='white')
label_subtitle4.grid(row=4, column=1)
label_subtitle3 = Label(window,
text="et sont chiffrées respectivement par :",
font=("Courrier,25"),
bg='grey',
fg='white')
label_subtitle3.grid(row=5, column=1)
label_subtitle5 = Label(
window,
text=servercalc.getData().get('values')[0][0][0:12] + "...",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=6, column=1)
label_subtitle5 = Label(
window,
text=servercalc.getData().get('values')[1][0][0:12] + "...",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=7, column=1)
label_subtitle5 = Label(
window,
text=servercalc.getData().get('values')[2][0][0:12] + "...",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=8, column=1)
label_subtitle5 = Label(
window,
text=servercalc.getData().get('values')[3][0][0:12] + "...",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=9, column=1)
label_subtitle2 = Label(window,
text="② Serveur externe (cloud)",
font=("Courrier, 25"),
bg='white',
fg='grey')
label_subtitle2.grid(row=10, column=3)
label_subtitle5 = Label(
window,
text=
"Les coefficients donnés par l'algorithme de Machine Learning à appliqués aux données sont :",
font=("Courrier,25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=11, column=3)
label_subtitle5 = Label(window,
text=linmodel.LinModel().getCoef(),
font=("Courrier,25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=12, column=3)
label_subtitle5 = Label(
window,
text=
"L'opération \"coefficient i\" multiplié par l'élément i des données chiffrées donne :",
font=("Courrier,25"),
bg='grey',
fg='white')
label_subtitle5.grid(row=13, column=3)
label_subtitle6 = Label(window,
text=answer_file['values'][0][0:12] + "...",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle6.grid(row=14, column=3)
#computeData()[0].ciphertext()
label_subtitle1 = Label(window,
text="③ Utilisateur",
font=("Courrier, 25"),
bg='white',
fg='grey')
label_subtitle1.grid(row=15, column=1)
label_subtitle1 = Label(window,
text="Récupération du résultat chiffré",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle1.grid(row=16, column=1)
label_subtitle1 = Label(window,
text="Après déchiffrement, on obtient :",
font=("Courrier, 25"),
bg='grey',
fg='white')
label_subtitle1.grid(row=17, column=1)
label_subtitle7 = Label(window,
text=priv_key.decrypt(answer),
font=("Courrier,35"),
bg='grey',
fg='white')
label_subtitle7.grid(row=18, column=1)
# window.grid_rowconfigure(0, minsize=150)
# window.grid_rowconfigure(8, minsize=150)
# window.grid_rowconfigure(5, minsize=150)
# afficher
window.mainloop()
def get_encrypted_number(self, pub_key, value):
ciphertext, exponent = value["ciphertext"], value["exponent"]
return paillier.EncryptedNumber(pub_key, int(ciphertext), int(exponent))
encrypted_data['values'] = [(str(x.ciphertext()), x.exponent)
for x in encrypted_data_list]
serialized = json.dumps(encrypted_data)
return serialized
def loadAnswer():
'''This function is intended to load the encrypted data coming from the server.'''
with open('answer.json', 'r') as file:
ans = json.load(file)
answer = json.loads(ans)
return answer
pub_key, priv_key = getKeys()
data = age, he, al, gen = [24, 4, 6, 1]
serializeData(pub_key, data)
datafile = serializeData(pub_key, data)
with open('data.json', 'w') as file:
json.dump(datafile, file)
answer_file = loadAnswer()
answer_key = paillier.PaillierPublicKey(n=int(answer_file['pubkey']['n']))
answer = paillier.EncryptedNumber(answer_key, int(answer_file['values'][0]),
int(answer_file['values'][1]))
# Decrypted Result
if (answer_key == pub_key):
print(priv_key.decrypt(answer))
def query_pred(feature_vector):
encrypted_vector = encrypt_vector(feature_vector)
response = requests.post('http://hw7prediction:8000/prediction', json={'pub_key_n': pubkey.n, 'enc_feature_vector': encrypted_vector})
prediction = paillier.EncryptedNumber(pubkey, response.json()['enc_prediction'], exponent=-8)
decrypted_prediction = decrypt_value(prediction)
return decrypted_prediction
def get_encrypted_number(self, public_key, value):
ciphertext, exponent = value['ciphertext'], value['exponent']
return paillier.EncryptedNumber(public_key, int(ciphertext),
int(exponent))
