def main(): random.seed(43) for i in range(19): message = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijk' 'lmnopqrstuvwxyz1234567890 !?.,`~@#$%^&*()_-+=[]{}|;:<>/' message = message * random.randint(2, 23) # convert message str to list message = list(message) random.shuffle(message) #convert back to str message = ''.join(message) # check all possible keys for each message for key in range(2, int(len(message) / 2)): encrypted = transposition_cipher.encryptMessage(key, message, \ len(message)) decrypted = transposition_cipher.decryptMessage(key, encrypted) # if results don't match then display error and quit if message != decrypted: print(f'{key} is not the correct key for message: {message}.') print(f'Decrypted as: {decrypted}') sys.exit() print(f'Test #{i+1} passed on message: "{message[:50]}..."')
def main(): random.seed(42) for i in range(20): message = 'ABCDEFGHIJKLMNOPQRSTUVWXYZ' * random.randint(4, 40) message = list(message) random.shuffle(message) message = ''.join(message) key = 8 print('Test %s: "%s..."' % (i + 1, message[:50])) for key in range(1, int(len(message) / 2)): encrypted = transposition_cipher.decryptMessage(key, message) #print('Encrypted Message: %s' % encrypted) decrypted = transposition_cipher.encryptMessage(key, encrypted) #print('Decrypted Message: %s' % decrypted) if message != decrypted: print('Mismatch with key %s and message %s.' % (key, message)) print('Decrypted as: ' + decrypted) sys.exit() print('Transposition cipher test passed')
def main(): inputFile = 'Prehistoric Men.txt' outputFile = 'Output.txt' key = int(input('Enter key: ')) mode = input('Encrypt/Decrypt [e/d]: ') if not os.path.exists(inputFile): print('File %s does not exist. Quitting...' % inputFile) sys.exit() if os.path.exists(outputFile): print('Overwrite %s? [y/n]' % outputFile) response = input('> ') if not response.lower().startswith('y'): sys.exit() startTime = time.time() if mode.lower().startswith('e'): with open(inputFile) as f: content = f.read() translated = transCipher.encryptMessage(key, content) elif mode.lower().startswith('d'): with open(outputFile) as f: content = f.read() translated = transCipher.decryptMessage(key, content) with open(outputFile, 'w') as outputObj: outputObj.write(translated) totalTime = round(time.time() - startTime, 2) print(('Done (', totalTime, 'seconds )'))
def encrypt(): message, key = file_to_encrypt() print("####Starting to encrypt") startTime = time.time() encrypted_message = cipher.encryptMessage(key, message) print("The time of encryptyng is: {:.3f}".format(time.time() - startTime)) save_encrypted_File(encrypted_message)
def main(): inputFile = 'Prehistoric Men.txt' outputFile = 'Output.txt' key = int(input('Enter key: ')) mode = input('Encrypt/Decrypt [e/d]: ') if not os.path.exists(inputFile): print('File %s does not exist. Quitting...' % inputFile) sys.exit() if os.path.exists(outputFile): print('Overwrite %s? [y/n]' % outputFile) response = input('> ') if not response.lower().startswith('y'): sys.exit() startTime = time.time() if mode.lower().startswith('e'): content = open(inputFile).read() translated = transCipher.encryptMessage(key, content) elif mode.lower().startswith('d'): content = open(outputFile).read() translated =transCipher .decryptMessage(key, content) outputObj = open(outputFile, 'w') outputObj.write(translated) outputObj.close() totalTime = round(time.time() - startTime, 2) print(('Done (', totalTime, 'seconds )'))
def main(): inputFile = "Prehistoric Men.txt" outputFile = "Output.txt" key = int(input("Enter key: ")) mode = input("Encrypt/Decrypt [e/d]: ") if not os.path.exists(inputFile): print("File %s does not exist. Quitting..." % inputFile) sys.exit() if os.path.exists(outputFile): print("Overwrite %s? [y/n]" % outputFile) response = input("> ") if not response.lower().startswith("y"): sys.exit() startTime = time.time() if mode.lower().startswith("e"): with open(inputFile) as f: content = f.read() translated = transCipher.encryptMessage(key, content) elif mode.lower().startswith("d"): with open(outputFile) as f: content = f.read() translated = transCipher.decryptMessage(key, content) with open(outputFile, "w") as outputObj: outputObj.write(translated) totalTime = round(time.time() - startTime, 2) print(("Done (", totalTime, "seconds )"))
def main(): random.seed(43) for i in range(19): message = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz1234567890 !?.,`~@#$%^&*()_-+=[]{}|;:<>/' * random.randint(2, 23) # convert message str to list message = list(message) random.shuffle(message) #convert back to str message = ''.join(message) # check all possible keys for each message for key in range(2, int(len(message) / 2)): encrypted = transposition_cipher.encryptMessage(key, message, len(message)) decrypted = transposition_brute_force.decryptMessage(key, encrypted) # if results don't match then display error and quit if message != decrypted: print('%s is not the correct key for message: %s.' % (key, message)) print('Decrypted as: ' + decrypted) sys.exit() print('Test #%s passed with key %s: "%s..."' % (i+1, key, message[:50]))