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]))
