Das deutsche Python-Forum

Code: Alles auswählen

#!/usr/bin/env python

import os
import sys
import base64

from yawPyCrypto.Cipher import DecryptCipher, EncryptCipher
from yawPyCrypto.Cipher import ZipDecryptCipher, ZipEncryptCipher
from yawPyCrypto.Constants import CIPHER_BLOWFISH, MODE_CBC


def doEncrypt(text, passw = None):

    e = EncryptCipher(passw, CIPHER_BLOWFISH, MODE_CBC)
    e.feed(text)
    e.finish()
    encryptedtext = e.data

    if passw != None:
        passwr = passw
    else:
        passwr = e.password

    a = (encryptedtext, passwr)
    return a


def doDecrypt(encryptedtext, passw):
    d = DecryptCipher(passw)
    d.feed(encryptedtext)
    d.finish()
    decoded = (d.data)
    return decoded


# Calling the encryption routine.
# If you just pass the text to encrypt, a password is generated:

a = doEncrypt("For your eyes only !", "Melina")


# Just trying to clean the screen:

if sys.platform == "win32":
    os.system("cls")
else:
    os.system("clear")

print
print "Hello !"
print
print "I just encrypted some text. It looks like this now:"
print

print base64.b64encode(a[0])

print
print 'Please notice, that I just encoded the text once more using "base64.b64encode()" to make it printable.'
print
print "The password for decryption is: "
print
print base64.b64encode(a[1])
print
print "Let's decrypt again (the original password must be passed without b64encoding):"
print
print doDecrypt(a[0], a[1])
print