Python/ciphers/transposition_cipher_encrypt_decrypt_file.py
2018-10-19 07:48:28 -05:00

37 lines
1.1 KiB
Python

from __future__ import print_function
import time, os, sys
import transposition_cipher as transCipher
def main():
inputFile = 'Prehistoric Men.txt'
outputFile = 'Output.txt'
key = int(raw_input('Enter key: '))
mode = raw_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 = raw_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 )'))
if __name__ == '__main__':
main()