Python Crypto.Cipher.Blowfish.MODE_ECB Examples

def triple_des_encrypt(
        self,
        key: str,
        iv: str = "0000000000000000",
        mode: str = "CBC",
        hex_key: bool = False,
        hex_iv: bool = True,
    ):
        """Encrypt raw state with Triple DES

        Triple DES applies DES three times to each block to increase key size. Key: 
        Triple DES uses a key length of 24 bytes (192 bits).<br>DES uses a key length 
        of 8 bytes (64 bits).<br><br>You can generate a password-based key using one 
        of the KDF operations. IV: The Initialization Vector should be 8 bytes long. 
        If not entered, it will default to 8 null bytes. Padding: In CBC and ECB 
        mode, PKCS#7 padding will be used.
        
        Args:
            key (str): Required. The secret key
            iv (str, optional): IV for certain modes only. Defaults to '0000000000000000'.
            mode (str, optional): Encryption mode. Defaults to 'CBC'.
            hex_key (bool, optional): If the secret key is a hex string. Defaults to False.
            hex_iv (bool, optional): If the IV is a hex string. Defaults to True.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> Chepy("some data").triple_des_encrypt("super secret password !!", mode="ECB").o
            b"f8b27a0d8c837edc8fb00ea85f502fb4"
        """

        self.__check_mode(mode)

        key, iv = self._convert_key(key, iv, hex_key, hex_iv)

        if mode == "CBC":
            cipher = DES3.new(key, mode=DES3.MODE_CBC, iv=iv)
            self.state = cipher.encrypt(pad(self._convert_to_bytes(), 8))
            return self
        elif mode == "ECB":
            cipher = DES3.new(key, mode=DES3.MODE_ECB)
            self.state = cipher.encrypt(pad(self._convert_to_bytes(), 8))
            return self
        elif mode == "CTR":
            cipher = DES3.new(key, mode=DES3.MODE_CTR, nonce=b"")
            self.state = cipher.encrypt(self._convert_to_bytes())
            return self
        elif mode == "OFB":
            cipher = DES3.new(key, mode=DES3.MODE_OFB, iv=iv)
            self.state = cipher.encrypt(self._convert_to_bytes())
            return self 

def des_encrypt(
        self,
        key: str,
        iv: str = "0000000000000000",
        mode: str = "CBC",
        hex_key: bool = False,
        hex_iv: bool = True,
    ):
        """Encrypt raw state with DES

        DES is a previously dominant algorithm for encryption, and was published 
        as an official U.S. Federal Information Processing Standard (FIPS). It is 
        now considered to be insecure due to its small key size. DES uses a key 
        length of 8 bytes (64 bits).<br>Triple DES uses a key length of 24 bytes. 
        You can generate a password-based key using one of the KDF operations. 
        The Initialization Vector should be 8 bytes long. If not entered, it will 
        default to 8 null bytes. Padding: In CBC and ECB mode, PKCS#7 padding will be used.
        
        Args:
            key (str): Required. The secret key
            iv (str, optional): IV for certain modes only. Defaults to '0000000000000000'.
            mode (str, optional): Encryption mode. Defaults to 'CBC'.
            hex_key (bool, optional): If the secret key is a hex string. Defaults to False.
            hex_iv (bool, optional): If the IV is a hex string. Defaults to True.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> Chepy("some data").des_encrypt("70617373776f7264", hex_key=True).o
            b"1ee5cb52954b211d1acd6e79c598baac"

            To encrypt using a differnt mode

            >>> Chepy("some data").des_encrypt("password", mode="CTR").o
            b"0b7399049b0267d93d"
        """

        self.__check_mode(mode)

        key, iv = self._convert_key(key, iv, hex_key, hex_iv)

        if mode == "CBC":
            cipher = DES.new(key, mode=DES.MODE_CBC, iv=iv)
            self.state = cipher.encrypt(pad(self._convert_to_bytes(), 8))
            return self
        elif mode == "ECB":
            cipher = DES.new(key, mode=DES.MODE_ECB)
            self.state = cipher.encrypt(pad(self._convert_to_bytes(), 8))
            return self
        elif mode == "CTR":
            cipher = DES.new(key, mode=DES.MODE_CTR, nonce=b"")
            self.state = cipher.encrypt(self._convert_to_bytes())
            return self
        elif mode == "OFB":
            cipher = DES.new(key, mode=DES.MODE_OFB, iv=iv)
            self.state = cipher.encrypt(self._convert_to_bytes())
            return self 

def decrypt(ciphername,password):  
    cipher= open(ciphername, 'r')
    ciphertext= cipher.read()

    crypt_obj = Blowfish.new(password, Blowfish.MODE_ECB)
    pixelstring= crypt_obj.decrypt(ciphertext)

    x= pixelstring.split(',')
    H,W= int(x[-2]),int(x[-1])
    pixelstring= x[0]
    pixelstring= [int(pixelstring[i:i+3])-100 for i in range(0, len(pixelstring), 3)]

    data = np.zeros((H, W, 3), dtype=np.uint8)
    c= 0
    for i in range(H):
        for j in range(W):
            data[i,j]= pixelstring[c], pixelstring[c+1], pixelstring[c+2]
            c=c+3

    img = Image.fromarray(data, 'RGB')
    x= ciphername.split('.')
    img.save(x[0]+'_dec.'+x[-2])
    img.show() 

def encrypt(imagename,password):
    img = Image.open( imagename )
    img.load()
    data = np.asarray( img, dtype="int32" )
    H, W = len(data), len(data[0])
    print(H)
    print(W)
    pixelstring= ""
    for t in data:
        for p in t:
            for i in p:
                pixelstring= pixelstring + str(100+i)
    pixelstring= pixelstring+','+str(H)+','+str(W)
    
    crypt_obj = Blowfish.new(password, Blowfish.MODE_ECB)
    ciphertext = crypt_obj.encrypt(pad_string(pixelstring))

    cipher= open(imagename+'.crypt', 'w')
    cipher.write(ciphertext) 

def triple_des_decrypt(
        self,
        key: str,
        iv: str = "0000000000000000",
        mode: str = "CBC",
        hex_key: bool = False,
        hex_iv: bool = True,
    ):
        """Decrypt raw state encrypted with DES. 

        Triple DES applies DES three times to each block to increase key size. Key: 
        Triple DES uses a key length of 24 bytes (192 bits).<br>DES uses a key length 
        of 8 bytes (64 bits).<br><br>You can generate a password-based key using one 
        of the KDF operations. IV: The Initialization Vector should be 8 bytes long. 
        If not entered, it will default to 8 null bytes. Padding: In CBC and ECB 
        mode, PKCS#7 padding will be used.
        
        Args:
            key (str): Required. The secret key
            iv (str, optional): IV for certain modes only. Defaults to '0000000000000000'.
            mode (str, optional): Encryption mode. Defaults to 'CBC'.
            hex_key (bool, optional): If the secret key is a hex string. Defaults to False.
            hex_iv (bool, optional): If the IV is a hex string. Defaults to True.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> c = Chepy("f8b27a0d8c837edce87dd13a1ab41f96")
            >>> c.hex_to_str()
            >>> c.triple_des_decrypt("super secret password !!")
            >>> c.o
            b"some data"
        """

        self.__check_mode(mode)

        key, iv = self._convert_key(key, iv, hex_key, hex_iv)

        if mode == "CBC":
            cipher = DES3.new(key, mode=DES3.MODE_CBC, iv=iv)
            self.state = unpad(cipher.decrypt(self._convert_to_bytes()), 8)
            return self
        elif mode == "ECB":
            cipher = DES3.new(key, mode=DES3.MODE_ECB)
            self.state = unpad(cipher.decrypt(self._convert_to_bytes()), 8)
            return self
        elif mode == "CTR":
            cipher = DES3.new(key, mode=DES3.MODE_CTR, nonce=b"")
            self.state = cipher.decrypt(self._convert_to_bytes())
            return self
        elif mode == "OFB":
            cipher = DES3.new(key, mode=DES3.MODE_OFB, iv=iv)
            self.state = cipher.decrypt(self._convert_to_bytes())
            return self 

def blowfish_encrypt(
        self,
        key: str,
        iv: str = "0000000000000000",
        mode: str = "CBC",
        hex_key: bool = False,
        hex_iv: bool = True,
    ):
        """Encrypt raw state with Blowfish

        Blowfish is a symmetric-key block cipher designed in 1993 by 
        Bruce Schneier and included in a large number of cipher suites 
        and encryption products. AES now receives more attention.
        IV: The Initialization Vector should be 8 bytes long.

        Args:
            key (str): Required. The secret key
            iv (str, optional): IV for certain modes only. Defaults to '0000000000000000'.
            mode (str, optional): Encryption mode. Defaults to 'CBC'.
            hex_key (bool, optional): If the secret key is a hex string. Defaults to False.
            hex_iv (bool, optional): If the IV is a hex string. Defaults to True.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> Chepy("some data").blowfish_encrypt("password", mode="ECB").o
            b"d9b0a79853f139603951bff96c3d0dd5"
        """

        self.__check_mode(mode)

        key, iv = self._convert_key(key, iv, hex_key, hex_iv)

        if mode == "CBC":
            cipher = Blowfish.new(key, mode=Blowfish.MODE_CBC, iv=iv)
            self.state = cipher.encrypt(pad(self._convert_to_bytes(), 8))
            return self
        elif mode == "ECB":
            cipher = Blowfish.new(key, mode=Blowfish.MODE_ECB)
            self.state = cipher.encrypt(pad(self._convert_to_bytes(), 8))
            return self
        elif mode == "CTR":
            cipher = Blowfish.new(key, mode=Blowfish.MODE_CTR, nonce=b"")
            self.state = cipher.encrypt(self._convert_to_bytes())
            return self
        elif mode == "OFB":
            cipher = Blowfish.new(key, mode=Blowfish.MODE_OFB, iv=iv)
            self.state = cipher.encrypt(self._convert_to_bytes())
            return self 

def encrypt_key(text, salt_key):
    try:
        bs = Blowfish.block_size
        extra_bytes = len(text) % bs
        padding_size = bs - extra_bytes
        padding = chr(padding_size) * padding_size
        padded_text = text + padding

        crypt_obj = Blowfish.new(salt_key, Blowfish.MODE_ECB)

        cipher = crypt_obj.encrypt(padded_text)

        return cipher
    except Exception as ERROR:
        log.error(ERROR) 

def decrypt_key(cipher, salt_key):
    try:
        crypt_obj = Blowfish.new(salt_key, Blowfish.MODE_ECB)
        decrypted_key = crypt_obj.decrypt(cipher)

        padding_size = ord(decrypted_key[-1])

        text = decrypted_key[:-padding_size]

        log.debug("Decrypt key was made successfully")
        return str(text)

    except Exception as ERROR:
        log.error(ERROR) 

def G(message, state=b'\x00\x00', stateLen=3):
	newState = state
	newState = padPKCS7(newState)

	for i in range(GetNumBlocks(message)):
		cipher = Blowfish.new(newState, Blowfish.MODE_ECB)
		newState = cipher.encrypt(GetBlock(message, i))
		newState = padPKCS7(newState[:stateLen])

	return newState[:stateLen] 

def des_decrypt(
        self,
        key: str,
        iv: str = "0000000000000000",
        mode: str = "CBC",
        hex_key: bool = False,
        hex_iv: bool = True,
    ):
        """Decrypt raw state encrypted with DES. 

        DES is a previously dominant algorithm for encryption, and was published 
        as an official U.S. Federal Information Processing Standard (FIPS). It is 
        now considered to be insecure due to its small key size. DES uses a key 
        length of 8 bytes (64 bits).<br>Triple DES uses a key length of 24 bytes. 
        You can generate a password-based key using one of the KDF operations. 
        The Initialization Vector should be 8 bytes long. If not entered, it will 
        default to 8 null bytes. Padding: In CBC and ECB mode, PKCS#7 padding will be used.
        
        Args:
            key (str): Required. The secret key
            iv (str, optional): IV for certain modes only. Defaults to '0000000000000000'.
            mode (str, optional): Encryption mode. Defaults to 'CBC'.
            hex_key (bool, optional): If the secret key is a hex string. Defaults to False.
            hex_iv (bool, optional): If the IV is a hex string. Defaults to True.
        
        Returns:
            Chepy: The Chepy object. 

        Examples:
            >>> Chepy("1ee5cb52954b211d1acd6e79c598baac").hex_to_str().des_decrypt("password").o
            b"some data"
        """

        self.__check_mode(mode)

        key, iv = self._convert_key(key, iv, hex_key, hex_iv)

        if mode == "CBC":
            cipher = DES.new(key, mode=DES.MODE_CBC, iv=iv)
            self.state = unpad(cipher.decrypt(self._convert_to_bytes()), 8)
            return self
        elif mode == "ECB":
            cipher = DES.new(key, mode=DES.MODE_ECB)
            self.state = unpad(cipher.decrypt(self._convert_to_bytes()), 8)
            return self
        elif mode == "CTR":
            cipher = DES.new(key, mode=DES.MODE_CTR, nonce=b"")
            self.state = cipher.decrypt(self._convert_to_bytes())
            return self
        elif mode == "OFB":
            cipher = DES.new(key, mode=DES.MODE_OFB, iv=iv)
            self.state = cipher.decrypt(self._convert_to_bytes())
            return self 

def __init__(self, key, session):
        self.cipher = Blowfish.new(key, Blowfish.MODE_ECB)
        self.session = session 

def populate_transform_menu(menu, obj, action_table):
	aes_menu = menu.addMenu("AES")
	aes_ecb_menu = aes_menu.addMenu("ECB mode")
	aes_cbc_menu = aes_menu.addMenu("CBC mode")
	action_table[aes_ecb_menu.addAction("Encrypt")] = lambda: obj.transform_with_key(lambda data, key: aes_encrypt_transform(data, key, AES.MODE_ECB, ""))
	action_table[aes_ecb_menu.addAction("Decrypt")] = lambda: obj.transform_with_key(lambda data, key: aes_decrypt_transform(data, key, AES.MODE_ECB, ""))
	action_table[aes_cbc_menu.addAction("Encrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: aes_encrypt_transform(data, key, AES.MODE_CBC, iv))
	action_table[aes_cbc_menu.addAction("Decrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: aes_decrypt_transform(data, key, AES.MODE_CBC, iv))

	blowfish_menu = menu.addMenu("Blowfish")
	blowfish_ecb_menu = blowfish_menu.addMenu("ECB mode")
	blowfish_cbc_menu = blowfish_menu.addMenu("CBC mode")
	action_table[blowfish_ecb_menu.addAction("Encrypt")] = lambda: obj.transform_with_key(lambda data, key: blowfish_encrypt_transform(data, key, Blowfish.MODE_ECB, ""))
	action_table[blowfish_ecb_menu.addAction("Decrypt")] = lambda: obj.transform_with_key(lambda data, key: blowfish_decrypt_transform(data, key, Blowfish.MODE_ECB, ""))
	action_table[blowfish_cbc_menu.addAction("Encrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: blowfish_encrypt_transform(data, key, Blowfish.MODE_CBC, iv))
	action_table[blowfish_cbc_menu.addAction("Decrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: blowfish_decrypt_transform(data, key, Blowfish.MODE_CBC, iv))

	cast_menu = menu.addMenu("CAST")
	cast_ecb_menu = cast_menu.addMenu("ECB mode")
	cast_cbc_menu = cast_menu.addMenu("CBC mode")
	action_table[cast_ecb_menu.addAction("Encrypt")] = lambda: obj.transform_with_key(lambda data, key: cast_encrypt_transform(data, key, CAST.MODE_ECB, ""))
	action_table[cast_ecb_menu.addAction("Decrypt")] = lambda: obj.transform_with_key(lambda data, key: cast_decrypt_transform(data, key, CAST.MODE_ECB, ""))
	action_table[cast_cbc_menu.addAction("Encrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: cast_encrypt_transform(data, key, CAST.MODE_CBC, iv))
	action_table[cast_cbc_menu.addAction("Decrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: cast_decrypt_transform(data, key, CAST.MODE_CBC, iv))

	des_menu = menu.addMenu("DES")
	des_ecb_menu = des_menu.addMenu("ECB mode")
	des_cbc_menu = des_menu.addMenu("CBC mode")
	action_table[des_ecb_menu.addAction("Encrypt")] = lambda: obj.transform_with_key(lambda data, key: des_encrypt_transform(data, key, DES.MODE_ECB, ""))
	action_table[des_ecb_menu.addAction("Decrypt")] = lambda: obj.transform_with_key(lambda data, key: des_decrypt_transform(data, key, DES.MODE_ECB, ""))
	action_table[des_cbc_menu.addAction("Encrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: des_encrypt_transform(data, key, DES.MODE_CBC, iv))
	action_table[des_cbc_menu.addAction("Decrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: des_decrypt_transform(data, key, DES.MODE_CBC, iv))

	des3_menu = menu.addMenu("Triple DES")
	des3_ecb_menu = des3_menu.addMenu("ECB mode")
	des3_cbc_menu = des3_menu.addMenu("CBC mode")
	action_table[des3_ecb_menu.addAction("Encrypt")] = lambda: obj.transform_with_key(lambda data, key: des3_encrypt_transform(data, key, DES3.MODE_ECB, ""))
	action_table[des3_ecb_menu.addAction("Decrypt")] = lambda: obj.transform_with_key(lambda data, key: des3_decrypt_transform(data, key, DES3.MODE_ECB, ""))
	action_table[des3_cbc_menu.addAction("Encrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: des3_encrypt_transform(data, key, DES3.MODE_CBC, iv))
	action_table[des3_cbc_menu.addAction("Decrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: des3_decrypt_transform(data, key, DES3.MODE_CBC, iv))

	rc2_menu = menu.addMenu("RC2")
	rc2_ecb_menu = rc2_menu.addMenu("ECB mode")
	rc2_cbc_menu = rc2_menu.addMenu("CBC mode")
	action_table[rc2_ecb_menu.addAction("Encrypt")] = lambda: obj.transform_with_key(lambda data, key: rc2_encrypt_transform(data, key, ARC2.MODE_ECB, ""))
	action_table[rc2_ecb_menu.addAction("Decrypt")] = lambda: obj.transform_with_key(lambda data, key: rc2_decrypt_transform(data, key, ARC2.MODE_ECB, ""))
	action_table[rc2_cbc_menu.addAction("Encrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: rc2_encrypt_transform(data, key, ARC2.MODE_CBC, iv))
	action_table[rc2_cbc_menu.addAction("Decrypt")] = lambda: obj.transform_with_key_and_iv(lambda data, key, iv: rc2_decrypt_transform(data, key, ARC2.MODE_CBC, iv))

	action_table[menu.addAction("RC4")] = lambda: obj.transform_with_key(lambda data, key: rc4_transform(data, key))
	action_table[menu.addAction("XOR")] = lambda: obj.transform_with_key(lambda data, key: xor_transform(data, key)) 

def runTest(self):
        self.assertRaises(ValueError, Blowfish.new, bchr(0) * 3,
                          Blowfish.MODE_ECB)
        self.assertRaises(ValueError, Blowfish.new, bchr(0) * 57,
                          Blowfish.MODE_ECB) 

def runTest(self):
        # Encrypt/Decrypt data and test output parameter

        cipher = Blowfish.new(b'4'*16, Blowfish.MODE_ECB)

        pt = b'5' * 16
        ct = cipher.encrypt(pt)

        output = bytearray(16)
        res = cipher.encrypt(pt, output=output)
        self.assertEqual(ct, output)
        self.assertEqual(res, None)
        
        res = cipher.decrypt(ct, output=output)
        self.assertEqual(pt, output)
        self.assertEqual(res, None)

        import sys
        if sys.version[:3] != '2.6':
            output = memoryview(bytearray(16))
            cipher.encrypt(pt, output=output)
            self.assertEqual(ct, output)
        
            cipher.decrypt(ct, output=output)
            self.assertEqual(pt, output)

        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)

        shorter_output = bytearray(7)
        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output) 

def connect(self):
		self.custom_sessionid = None
		self.logged_in = False

		response = self._request("InitialApp.php", {
			"RegionCode": self.region_code,
			"lg": "en-US",
		})
		ret = CarwingsInitialAppResponse(response)

		c1  = Blowfish.new(ret.baseprm, Blowfish.MODE_ECB)
		packedPassword = _PKCS5Padding(self.password)
		encryptedPassword = c1.encrypt(packedPassword)
		encodedPassword = base64.standard_b64encode(encryptedPassword)

		response = self._request("UserLoginRequest.php", {
			"RegionCode": self.region_code,
			"UserId": self.username,
			"Password": encodedPassword,
		})

		ret = CarwingsLoginResponse(response)

		self.custom_sessionid = ret.custom_sessionid

		self.gdc_user_id = ret.gdc_user_id
		log.debug("gdc_user_id: %s" % self.gdc_user_id)
		self.dcm_id = ret.dcm_id
		log.debug("dcm_id: %s" % self.dcm_id)
		self.tz = ret.tz
		log.debug("tz: %s" % self.tz)
		self.language = ret.language
		log.debug("language: %s" % self.language)
		log.debug("vin: %s" % ret.vin)
		log.debug("nickname: %s" % ret.nickname)

		self.leaf = Leaf(self, ret.leafs[0])

		self.logged_in = True

		return ret 

def CapcomBlowfish(data, key):
    cipher = Blowfish.new(key, Blowfish.MODE_ECB)
    return endianness_reversal(cipher.decrypt(endianness_reversal(data))) 

def runTest(self):
        self.assertRaises(ValueError, Blowfish.new, bchr(0) * 3,
                          Blowfish.MODE_ECB)
        self.assertRaises(ValueError, Blowfish.new, bchr(0) * 57,
                          Blowfish.MODE_ECB) 

def runTest(self):
        # Encrypt/Decrypt data and test output parameter

        cipher = Blowfish.new(b'4'*16, Blowfish.MODE_ECB)

        pt = b'5' * 16
        ct = cipher.encrypt(pt)

        output = bytearray(16)
        res = cipher.encrypt(pt, output=output)
        self.assertEqual(ct, output)
        self.assertEqual(res, None)
        
        res = cipher.decrypt(ct, output=output)
        self.assertEqual(pt, output)
        self.assertEqual(res, None)

        import sys
        if sys.version[:3] != '2.6':
            output = memoryview(bytearray(16))
            cipher.encrypt(pt, output=output)
            self.assertEqual(ct, output)
        
            cipher.decrypt(ct, output=output)
            self.assertEqual(pt, output)

        self.assertRaises(TypeError, cipher.encrypt, pt, output=b'0'*16)
        self.assertRaises(TypeError, cipher.decrypt, ct, output=b'0'*16)

        shorter_output = bytearray(7)
        self.assertRaises(ValueError, cipher.encrypt, pt, output=shorter_output)
        self.assertRaises(ValueError, cipher.decrypt, ct, output=shorter_output)