Nov-12-2017, 07:15 PM
Here is the code I have:
from tkinter import *
import tkinter
#create window
Start = Tk()
Start.title("Enigma Machine")
Start.geometry("400x360+500+200")
Start.resizable(width=False, height=False)
def base():
"""Machine module opening a window with Tk inter to recreate the
Enigma Machine which was used in WWII by the german army."""
global PAD1,PAD2,PAD3,text,counter,ecounter,enclist
Rotors = Frame(bg='dark grey')
Rotors.pack(side=TOP)
#in these Frames we will pack the keys for each key of the Keyboard
Keyrow1 = Frame(pady=5)
Keyrow1.pack(side=TOP)
Keyrow2 = Frame(pady=3)
Keyrow2.pack(side=TOP)
Keyrow3 = Frame()
Keyrow3.pack(side=TOP)
Keyrow4 = Frame(pady=10)
Keyrow4.pack(side=TOP)
#this will be the first text field, containing the entered message
NONEncryptF = Frame()
NONEncryptF.pack(side=TOP)
#This Frame contains the second text field with the encripted message
EncryptF = Frame()
EncryptF.pack(side=TOP)
#First text field, M being Message, T for text and L for label
NONEncryptM = "Inputted Text will be written here."
NONEncryptT = StringVar()
NONEncryptL = Label(NONEncryptF,width=50,height=4,textvariable=NONEncryptT,bg="black",fg="white")
NONEncryptL.pack()
NONEncryptT.set(str(NONEncryptM))
#same is done for the encripted text box
EncryptM = "Encrypted Text will be written here."
EncryptT = StringVar()
EncryptL = Label(EncryptF,width=50,height=4,textvariable=EncryptT,bg="grey55",fg="black")
EncryptL.pack()
EncryptT.set(str(EncryptM))
#these are the three rotors, counters for us
PAD1=1
PAD2=1
PAD3=1
#these btoh counters add a paragraph if the line exceeds 40 characters (see later)
counter = 0
ecounter = 0
#Keyboard
LR1 = ["q","w","e","r","t","z","u","i","o","p"]
LR2 = ["a","s","d","f","g","h","j","k","l"]
LR3 = ["y","x","c","v","b","n","m",".",]
LR4 = ["space"]
#these lists will be the containers for the both texts
text=[]
enclist = []
#First Part: having the GUI of the machine work
def GUI():
def ROTORMOVER():
"""for each pressed key, we will augment the counter,
counter moves back to 0 if it reaches 26,
moving the one to its right"""
global PAD1,PAD2,PAD3,counter,ecounter
if PAD3==26:
PAD3=1
if PAD2==26:
PAD2=1
if PAD1==26:
PAD1=1
PAD2=1
PAD3=1
else:
PAD1+=1
else:
PAD2+=1
else:
PAD3+=1
#increases counters
counter+=1
ecounter+=1
ROTOR3.set(str(PAD3))
ROTOR2.set(str(PAD2))
ROTOR1.set(str(PAD1))
def printer(l):
"""this pastes the normal, inputted text in the Message"""
global text,NONEncryptM,counter
ROTORMOVER()
text+=[l]
if counter==40: # if characters exceed 40, we append a paragraph
text.append("\n")
counter=0
NONEncryptM = "".join(text)
NONEncryptT.set(str(NONEncryptM))
#we launch encrypt() to encript the message that was just given
encrypt()
#We create Labels and Stringvars for each row of keys in the keyboard
ROTOR1 = StringVar()
ROTOR2 = StringVar()
ROTOR3 = StringVar()
LabelPad1 = Label(Rotors, textvariable = ROTOR1 , bg ="grey")
ROTOR1.set(str(PAD1))
LabelPad1.pack(padx=5,pady=10,side=LEFT)
LabelPad2 = Label(Rotors,textvariable = ROTOR2, bg = "grey")
ROTOR2.set(str(PAD2))
LabelPad2.pack(padx=5,pady=10,side=LEFT)
LabelPad3 = Label(Rotors, textvariable = ROTOR3 , bg ="grey")
ROTOR3.set(str(PAD3))
LabelPad3.pack(padx=5,pady=10)
#creating the keyboard
for char in LR1:
Button(Keyrow1,text=char,width=3,pady=5,command=lambda q=char:printer(q)).pack(side=LEFT)
for char in LR2:
Button(Keyrow2,text=char,width=3,pady=5,command=lambda q=char:printer(q)).pack(side=LEFT)
for char in LR3:
Button(Keyrow3,text=char,width=3,pady=5,command=lambda q=char:printer(q)).pack(side=LEFT)
Button(Keyrow4,text="Space",width=3,padx=85,pady=5,command=lambda:printer(" ")).pack()
#Executing code above
GUI()
def encrypt():
# In this second section, we take what was written in the text field and let it "pass through" the rotors
global EncryptM,text,PAD3,PAD2,PAD1,enclist,c,d,e,ENCMESS,x,ecounter,Rotor1,Rotor2,Rotor3,Mirror
char = ["a","b","c","d","e","f","g","h","i","j","k","l","m","n","o","p","q","r","s","t","u","v","w","x","y","z"," "]
#c,d,e are variables that act as counters: for each pressed key they increase, meaning pressing twice 'a' will not exit the same key
c = PAD3-2
if c==-1:c=26
d = PAD2-1
e = PAD1-1
ENCMESS=0
#The modifications for the 3 rotors and mirror, I did not insert a plugboard yet in the program
Rotor1 = [7,13,1,23,6,17,14,10,26,2,5,19,12,18,21,3,25,9,15,24,4,11,20,8,22,16]
Rotor2 = [19,17,6,3,25,16,7,11,23,4,1,20,9,5,26,22,14,2,18,10,24,15,8,12,21,13]
Rotor3 = [24,13,9,21,10,5,17,2,12,25,4,11,15,18,7,20,1,14,23,6,16,19,22,3,26,8]
Mirror = [21,7,17,18,11,3,1,23,15,12,8,25,13,16,9,22,2,26,20,14,6,19,24,4,10,5]
def starter():
"""Converts our last character of the inputted text into a cipher"""
global ENCMESS,c,text,x,Rotor1
x = text[len(text)-1]
for cha in char:
ENCMESS+=1
if x==cha: break
def coder(seq,rev,m):
"""Acts as our rotors"""
global ENCMESS
if rev==0:ENCMESS+=m
while ENCMESS>26:ENCMESS-=26
ENCMESS = seq[ENCMESS-1]
def letters():
"""Converts the ciher back to a letter"""
global ENCMESS
ENCMESS = char[ENCMESS-1]
starter()
coder(Rotor1,0,c)
coder(Rotor2,0,d)
coder(Rotor3,0,e)
coder(Mirror,2,c)
coder(Rotor3,1,e)
coder(Rotor2,1,d)
coder(Rotor1,1,c)
#appends parapgraph if the characters are over 40
for l in enclist:
if ecounter==40:
enclist.append("\n")
ecounter=0
#If the last charcater (a.k.a. inputted charcter is a space or dot, it inserts respectively space or dot)
if x==" ": enclist.append(" ")
elif x==".":enclist.append(".")
elif x=="\n":pass
else: # If not, it appends our encripted character
letters()
enclist.append(ENCMESS)
EncryptM = "".join(enclist)
EncryptT.set(str(EncryptM))
base()
#keeps the window open
Start.mainloop()The code works, no errors are summoned or anything. I'm only 16 years old, found out about programming barely a year ago, and love it. I am trying to recreate the "Enigma machine". IT's a coding/decoding machine used by the germans in WWII. My model does not have the plugboard yet, but it is not necessary. When entering a text, I get my text, and my encripted text, perfect? not quite..My Problem:
The outputted (encripted) text I get, will not retranslate back into to the text if I re-enter it.
What should happen:
The outputted text (for example from hello it is: vepou) will not decode into the text I first entered (if "vepou" is entered, you get "hejjs").
My guess is that one of the counters (probably variable c, defined in encrypt() ) moves my input too far or not far enough..
If anyone has any idea where the problem is and with what to fix it, I would be very grateful.. UNtil then I'm blocked.. (passed the last week trying to figure out what the problem was with 3-4 others simpler programs"..)
I am open to any sort of questions and improvements!
Thank you very very much!