def Exsend_(self):
Send_().send_all()
r_sc = 406572794028345823020817876817526759659544524999
r_sc = (bytes(str(r_sc), 'utf-8'))
localtime = time.asctime( time.localtime(time.time()) )
localtime = (bytes(str(localtime), 'utf-8'))
z_sc = hashlib.sha256()
z_sc.update(r_sc)
z_sc.update(localtime)
z_sc.update(bytes(str(My_ID), 'utf-8'))
z_sc = int(z_sc.hexdigest(), 16)
K_2c = z_sc * p
K_1c = (K_2c.x * d_c) * P_b
X_K1c = (bytes(str(K_1c.x), 'utf-8'))
Y_K2c = (bytes(str(K_2c.y), 'utf-8'))
#encryption
key_c = X_K1c[:16] # Symmetric Key
aese_c = aes.AESModeOfOperationOFB(key_c, iv_c)
text = zipfile.ZipFile(temp_ + "source.zip", mode="w")
n = len(a)
i = 0
while True:
if i < len(a):
text.write(a[i])
i += 1
else:
break
text.close()
text = open(temp_ + "source.zip", "rb")
text = text.read()
h_c = hashlib.sha256()
h_c.update(text)
h_c.update(Y_K2c)
h_c = int(h_c.hexdigest(), 16)
C = aese_c.encrypt(text)
S = (z_sc - (h_c * d_c))%q
R = h_c * P_c
Dict = {'s':S, 'r':str(R), 'c':C}
if self.ids.Steganography.state == "down":
f = open(temp_+ "crytp.txt", "w")
f.write(str(Dict))
f.close()
TextToHide = open(temp_+ "crytp.txt", "r").read()
ImageFile = image_file_path
StegImageFile = (output_file_path + ".bmp")
LSBEncrypter().hide_(TextToHide, ImageFile, StegImageFile)
else:
f = open(output_file_path + ".txt", "w")
f.write(str(Dict))
f.close()
shutil.rmtree(temp_, ignore_errors=True)
self.ids.Steganography.state = "normal"
def Exreceive_(self):
Receive_().receive_all()
# if os.path.exists(temp_) == True:
# pass
# else: temp_
if R_path.endswith('.txt'):
f = open(R_path, "r")
my_dict = eval(f.read())
else:
im1 = Image.open(R_path)
text = stepic.decode(im1)
rec_ = open(temp_ + "crytp.txt", "wb")
rec_.write(bytearray(map(ord, text)))
rec_.close()
f = open(temp_ + "crytp.txt", "r")
my_dict = eval(f.read())
R = my_dict['r']
S = my_dict['s']
Cr = my_dict['c']
f.close()
R = R.split()
r_x = int(R[1], base=16)
r_y = int(R[3], base=16)
R = curves.Point(r_x, r_y, cv)
# Bank
K_2b = (S * p) + R
Y_K2b = (bytes(str(K_2b.y), 'utf-8'))
K_1b = (K_2b.x * d_b) * P_c
X_K1b = (bytes(str(K_1b.x), 'utf-8'))
key_b = X_K1b[:16] # Symmetric Key
iv_b = "9B7D2C34A366BF89"
aesd_b = aes.AESModeOfOperationOFB(key_b, iv_b)
decrypted_b = aesd_b.decrypt(Cr)
plaintext = open(temp_ + "plain.zip", "wb")
plaintext.write(decrypted_b)
plaintext.close()
plaintext = open(temp_ + "plain.zip", "rb")
plaintext = plaintext.read()
h_b = hashlib.sha256()
h_b.update(plaintext)
h_b.update(Y_K2b)
h_b = int(h_b.hexdigest(), 16)
R_b = h_b * P_c
print(temp_)
if R == R_b:
shutil.move(temp_ + "plain.zip", output_file_path + ".zip")
Factory.RWin().open()
else:
Factory.RDefeat().open()
shutil.rmtree(temp_, ignore_errors=True)
def Exreceive_(self):
Receive_().receive_all()
f = open(R_path, "r")
my_dict = eval(f.read())
R = my_dict['r']
S = my_dict['s']
Cr = my_dict['c']
f.close()
print(temp_)
shutil.rmtree(temp_, ignore_errors=True)
R = R.split()
r_x = int(R[1], base=16)
r_y = int(R[3], base=16)
R = curves.Point(r_x, r_y, cv)
# Bank
K_2b = (S * p) + R
Y_K2b = (bytes(str(K_2b.y), 'utf-8'))
K_1b = (K_2b.x * d_b) * P_c
X_K1b = (bytes(str(K_1b.x), 'utf-8'))
key_b = X_K1b[:16] # Symmetric Key
iv_b = "9B7D2C34A366BF89"
aesd_b = aes.AESModeOfOperationOFB(key_b, iv_b)
decrypted_b = aesd_b.decrypt(Cr)
plaintext = open(output_file_path + ".zip", "wb")
plaintext.write(decrypted_b)
plaintext.close()
plaintext = open(output_file_path + ".zip", "rb")
plaintext = plaintext.read()
h_b = hashlib.sha256()
h_b.update(plaintext)
h_b.update(Y_K2b)
h_b = int(h_b.hexdigest(), 16)
R_b = h_b * P_c
if R == R_b:
Factory.RWin().open()
else:
Factory.RDefeat().open()