Python Project | Secret Messaging|Encoding | Decoding

Secret Messaging|Encoding | Decoding

tkinter is most commonly used method  that Python offers multiple options for developing GUI.Python provides the Tkinter toolkit to develop GUI applications.Let’s try to implement a message encryption-decryption application according to the Vigenère cipher, which can encrypt the message using the key and can decrypt the encrypted hash using same key.

#Step1: import tkinter module 
from tkinter import *
  
# import other necessery modules 
import random 
import time 
import datetime 
  
#Step2:- creating root object 
root = Tk() 
  
# defining size of window 
root.geometry("1200x1000") 
  
# setting up the title of window 
root.title("Message Encoding and Decoding") 
root.configure(bg="black")
  
#Step3:setting the frames
Tops = Frame(root, width = 1600, relief = GROOVE ,background="blue") 
Tops.pack(side = TOP) 
  
f1 = Frame(root, width = 800, height = 600, relief = GROOVE)
f1.pack(side = LEFT) 
f1.configure(bg="black")
  
#Step4:setting Labels and their position

lblInfo = Label(Tops, font = ('helvetica', 40, 'bold'), 
          text = "SECRET MESSAGING \n Encoding | Decoding", background="black",
                     fg = "White", bd = 8, anchor='w')
                       
lblInfo.grid(row = 0, column = 0) 
  
 #Step5: Creating 5 variable of StringVar type
rand = StringVar() 
Msg = StringVar() 
key = StringVar() 
mode = StringVar() 
Result = StringVar() 
  
# exit function 
def qExit(): 
    root.destroy() 
  
# Step6:-Function to reset the window 
def Reset(): 
    rand.set("") 
    Msg.set("") 
    key.set("") 
    mode.set("") 
    Result.set("") 
  

  
#Step7:Setting reference 
lblReference = Label(f1, font = ('arial', 14, 'bold'), background="black" ,fg="white",
                text = "Name:", bd = 14, anchor = "w") 
                  
lblReference.grid(row = 0, column = 0) 
  
#input Box
txtReference = Entry(f1, font = ('arial', 14, 'bold'), 
               textvariable = rand, bd = 8, 
                        bg = "LemonChiffon", justify = 'right') 
                          
txtReference.grid(row = 0, column = 1) 
  
# labels 
lblMsg = Label(f1, font = ('arial', 14, 'bold'), bg="black" ,fg="white",
         text = "MESSAGE", bd = 14, anchor = "w") 
           
lblMsg.grid(row = 1, column = 0) 
  
txtMsg = Entry(f1, font = ('arial', 14, 'bold'), 
         textvariable = Msg, bd = 8, 
                bg = "LemonChiffon", justify = 'right') 
                  
txtMsg.grid(row = 1, column = 1) 
  
lblkey = Label(f1, font = ('arial', 14, 'bold'), bg="black" ,fg="white",
            text = "KEY", bd = 14, anchor = "w") 
              
lblkey.grid(row = 2, column = 0) 
  
txtkey = Entry(f1, font = ('arial', 14, 'bold'), 
         textvariable = key, bd = 8, insertwidth = 3, 
                bg = "LemonChiffon", justify = 'right') 
                  
txtkey.grid(row = 2, column = 1) 
  
lblmode = Label(f1, font = ('arial', 14, 'bold'), bg="black" ,fg="white",
          text = "MODE(e for encrypt, d for decrypt)", 
                                bd = 14, anchor = "w") 
                                  
lblmode.grid(row = 3, column = 0) 
  
txtmode = Entry(f1, font = ('arial', 14, 'bold'), 
          textvariable = mode, bd = 8, insertwidth = 3, 
                  bg = "LemonChiffon", justify = 'right') 
                    
txtmode.grid(row = 3, column = 1) 
  
lblService = Label(f1, font = ('arial', 14, 'bold'), bg="black" ,fg="white",
             text = "The Result-", bd = 14, anchor = "w") 
               
lblService.grid(row = 2, column = 2) 
  
txtService = Entry(f1, font = ('arial', 14, 'bold'),  
             textvariable = Result, bd = 8, insertwidth = 4, 
                       bg = "LemonChiffon", justify = 'right') 
                         
txtService.grid(row = 2, column = 3) 
  
#Step8:Working of all the buttons defines here
#  cipher 
import base64 
  
# Function to encode 
def encode(key, clear): 
    enc = [] 
      
    for i in range(len(clear)): 
        key_c = key[i % len(key)] 
        enc_c = chr((ord(clear[i]) +
                     ord(key_c)) % 256) 
                       
        enc.append(enc_c) 
          
    return base64.urlsafe_b64encode("".join(enc).encode()).decode() 
  
# Function to decode 
def decode(key, enc): 
    dec = [] 
      #base64.urlsafe_b64decode() is function in python library (base64)
    enc = base64.urlsafe_b64decode(enc).decode() 
    for i in range(len(enc)): 
        key_c = key[i % len(key)] 
        dec_c = chr((256 + ord(enc[i]) -
                           ord(key_c)) % 256) 
                             
        dec.append(dec_c) 
    return "".join(dec) 
  
  #Step9:Fetching value from input boxes.
def Ref(): 
    print("Message= ", (Msg.get())) 
    clear = Msg.get() 
    k = key.get() 
    m = mode.get() 
  
    if (m == 'e'): 
        Result.set(encode(k, clear)) 
    else: 
        Result.set(decode(k, clear)) 
  
#Step10: Define  Buttons
#Submit button 
btnTotal = Button(f1, padx = 18, pady = 10, bd = 16, fg = "black", 
                        font = ('arial', 16, 'bold'), width = 10, 
                       text = "Submit", bg ="Gold", 
                         command = Ref).grid(row = 12, column = 1) 
  
# Reset button 
btnReset = Button(f1, padx = 18, pady = 10, bd = 16, 
                  fg = "black", font = ('arial', 16, 'bold'), 
                    width = 10, text = "Reset", bg = "DarkSeagreen", 
                   command = Reset).grid(row = 12, column = 2) 
  
# Exit button 
btnExit = Button(f1, padx = 18, pady = 10, bd = 16,  
                 fg = "black", font = ('arial', 16, 'bold'), 
                      width = 10, text = "Exit", bg = "IndianRed", 
                  command = qExit).grid(row = 12, column = 3) 
  
#Step11: keeps window alive 
root.mainloop()


Here the Output:

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