def decrypt_file(filename):
l = []
key = input("Enter secret key: ")
chunk = 16 * 1024
with open(filename, "r") as r:
while True:
data = r.read(chunk)
if len(data) == 0:
break
with open(filename, "w") as w:
l.append(decrypt(data, key))
w.write(decrypt(data, key))
return l
def get_msg():
print("You entered '2': Get messages\n")
#get messages and display them
session_user.access_tok = refresh_token(constants.url, session_user.access_tok)
messages = get_message(constants.url, session_user.username, session_user.access_tok)
for message in messages:
sender = message["sender"]
json_object = json.loads(message["ciphertext"])
message = decrypt(json_object, session_user.private_keys[sender].encode())
print("Message = {}".format(message))
def display_data(trigger, wname=None):
""" displays the website name, username and password
:param trigger: used to display all passwords or single entry
:param wname: website name
"""
try:
if (trigger == 1):
query = '''SELECT * FROM Password'''
for row in cur.execute(query):
print("Website: ", row[0])
print("Username: "******"Password: "******"'))
else:
query = '''SELECT * FROM Password WHERE website = ?'''
for row in cur.execute(query, (wname, )):
#print("Website: ", row[0])
print("Username: "******"Password: "******"'))
except Exception as e:
print("Website doesn't exist in db")
print(e)
def decryption(self):
# Verify that the input for the key and intended message is correct type
try:
dekey = int(self.dekey_entry.get())
demessage = str(self.retrieve_input(self.deT))
new_message = de.decrypt(demessage, dekey)
self.decrypted_answer.set(new_message)
except TypeError:
# For if the first decryption function does not work
try:
new_message = exception.decrypt(demessage, dekey)
self.decrypted_answer.set(new_message)
except TypeError:
self.decrypted_answer.set("An error has occurred")
def decrypt_file_data(filename):
key = input("enter secret key: ")
filename = filename[:-4] + "e" + filename[-4:]
def read_file():
#chunk = (16 * 1024) / 3 * 4
#chunk -= chunk % 4
chunk = 21868
with open(filename, "r") as r:
while True:
data = r.read(int(chunk))
if len(data) == 0:
break
yield data
outfile = filename[:-5] + filename[-4:]
with open(outfile, "w") as w:
for data in read_file():
w.write(decrypt(data, key))
def verify(transaction_id, file_hash, path_hash):
transaction_data = get_transaction(transaction_id)
if "Error" in transaction_data:
if transaction_data[
"Error"] == f'Transaction {transaction_id} not found.':
return {"Error": 'Transaction ID Not Found'}
else:
return transaction_data
transaction_data = transaction_data["data_string"]
# print(transaction_data)
# print('----1')
final_hash = decrypt(transaction_data)
# print(file_hash)
# print('----2')
calulated_final_hash = hash_path(file_hash, path_hash)
# print(calulated_final_hash)
# print('----3')
check = final_hash == calulated_final_hash
return {"verify": check}
def decrypt_file(filename):
key = input("enter key: ")
with open(filename, "r") as r:
data = r.read()
with open(filename, "w") as w:
w.write(decrypt(data, key))
import encrypt_decrypt
import brute_force_func
alphabet = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
key = input("Enter a number between [1,25]: ")
while int(key) < 1 or int(key) > 25:
print("You have entered a number outside the range. Try again")
offset = input("Input a number between [0,25]: ")
text = input("Enter a word to have it encrypted: ")
text = text.upper()
print("----- Encryption/Decryption -----")
print("Encypted Message : " + encrypt_decrypt.encrypt(key, text))
print("Decrypted Message: " + encrypt_decrypt.decrypt(key, text))
print("----- Brute Force ---------------")
brute_force_func.brute_force()
def Decode(image_path , key): #steganograph the image message = Steganography.decode(image_path) #decrypting the message decrypted = encrypt_decrypt.decrypt(message , key) return decrypted
def test_decrypt(self):
self.assertEqual(decrypt(self.input_message, self.encrypt_codes),
self.output_message, "Decryption failed")
