CYPHER - Python

Will

Will

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This is a very simple program, but one of my first proper programs that actually does something - albeit not that useful... unless you're a spy. I would have to write a security related program ....

CYPHER - Creates a secret "code" using an XOR Cypher. Cypher key is a typed password, which is then used to produce the coded or decoded output.

cypher1.JPG

cypher2.JPG

I've updated the program to display *'s in the Password box, after rummaging through the tkinter references.

Code: 
# Cypher v1.0
# Python version 3.2
#
# Created by Will Watts
# Secret Code generator using a XOR cypher.

from tkinter import *
from itertools import zip_longest

class Application(Frame):
    """ GUI application for XOR Cypher. """
    def __init__(self, master):
        """ Initialize Frame. """
        super(Application, self).__init__(master)
        self.grid()
        self.create_widgets()

    def create_widgets(self):
        """ Create widgets to get password and message and display code. """
        #Instruction label
        Label(self,
              text = "CYPHER"
              ).grid(row = 0, column = 0, sticky = W)

        #password label
        Label(self,
              text = "Password:"
              ).grid(row = 3, column = 0, sticky = W)
        self.password_ent = Entry(self, show="*")
        self.password_ent.grid(row = 3, column = 1, sticky = W)

        #message box
        self.message_txt = Text(self,
                                width = 75,
                                height = 10,
                                wrap = WORD)
        self.message_txt.grid(row = 5, column = 0, columnspan = 4)

        #cypher button

        Button(self,
               text = "Cypher",
               command = self.cypher
               ).grid(row = 8, column = 0, sticky = W)

    def cypher(self):
        key = self.password_ent.get()
        data = self.message_txt.get(0.0, END)

        coded = ''.join(chr(ord(x) ^ ord(y)) for (x,y) in zip_longest(data, key, fillvalue = '-'))

        self.message_txt.delete(0.0, END)
        self.message_txt.insert(0.0, coded)

root = Tk()
root.title("CYPHER")
app = Application(root)
root.mainloop()
 
Good job!

We could use it to post coded messages in an open thread!!!! It will be like writing notes in english runic in Algebra class!!! :lol:
 
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