Create Picocrypt.py
This commit is contained in:
Evan Su
GitHub
parent
1da360092a
commit
c101ae822f
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#!/usr/bin/env python3
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"""
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Dependencies: argon2-cffi, pycryptodome, reedsolo
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Copyright (c) Evan Su (https://evansu.cc)
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Released under a GNU GPL v3 License
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https://github.com/HACKERALERT/Picocrypt
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"""
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# Test if libraries are installed
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try:
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from argon2.low_level import hash_secret_raw
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from Crypto.Cipher import ChaCha20_Poly1305
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try:
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from creedsolo import ReedSolomonError
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except:
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from reedsolo import ReedSolomonError
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except:
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# Libraries missing, install them
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from os import system
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try:
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# Debian/Ubuntu based
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system("sudo apt-get install python3-tk")
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except:
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# Fedora
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system("sudo dnf install python3-tkinter")
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system("python3 -m pip install argon2-cffi --no-cache-dir")
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system("python3 -m pip install pycryptodome --no-cache-dir")
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system("python3 -m pip install reedsolo --no-cache-dir")
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# Imports
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from tkinter import filedialog,messagebox
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from threading import Thread
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from datetime import datetime
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from argon2.low_level import hash_secret_raw,Type
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from Crypto.Cipher import ChaCha20_Poly1305
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from Crypto.Hash import SHA3_512 as sha3_512
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from secrets import compare_digest
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from os import urandom,fsync,remove
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from os.path import getsize,expanduser
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import sys
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import tkinter
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import tkinter.ttk
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import tkinter.scrolledtext
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import webbrowser
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try:
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from creedsolo import RSCodec,ReedSolomonError
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except:
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from reedsolo import RSCodec,ReedSolomonError
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# Tk/Tcl is a little barbaric, so I'm disabling
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# high DPI so it doesn't scale bad and look horrible
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try:
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from ctypes import windll
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windll.shcore.SetProcessDpiAwareness(0)
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except:
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pass
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# Global variables and notices
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inputFile = ""
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outputFile = ""
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password = ""
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ad = ""
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kept = False
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working = False
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gMode = None
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headerRsc = None
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adString = "File metadata (used to store some text along with the file):"
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passwordNotice = "Error. The provided password is incorrect."
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corruptedNotice = "Error. The input file is corrupted."
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veryCorruptedNotice = "Error. The input file and header keys are badly corrupted."
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modifiedNotice = "Error. The input file has been intentionally modified."
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kCorruptedNotice = "The input file is corrupted, but the output has been kept."
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kModifiedNotice = "The input file has been intentionally modified, but the output has been kept."
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kVeryCorruptedNotice = "The input file is badly corrupted, but the output has been kept."
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derivingNotice = "Deriving key (takes a few seconds)..."
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keepNotice = "Keep decrypted output even if it's corrupted or modified"
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eraseNotice = "Securely erase and delete original file"
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overwriteNotice = "Output file already exists. Would you like to overwrite it?"
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rsNotice = "Prevent corruption using Reed-Solomon"
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rscNotice = "Creating Reed-Solomon tables..."
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unknownErrorNotice = "Unknown error occured. Please try again."
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# Create root Tk
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tk = tkinter.Tk()
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tk.geometry("480x480")
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tk.title("Picocrypt")
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tk.configure(background="#f5f6f7")
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tk.resizable(0,0)
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# Try setting window icon if included with Picocrypt
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try:
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favicon = tkinter.PhotoImage(file="./key.png")
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tk.iconphoto(False,favicon)
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except:
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pass
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# Some styling
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s = tkinter.ttk.Style()
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s.configure("TCheckbutton",background="#f5f6f7")
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# Event when user selects an input file
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def inputSelected():
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global inputFile,working,headerRsc
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dummy.focus()
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# Try to handle when select file is cancelled
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try:
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# Ask for input file
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suffix = ""
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tmp = filedialog.askopenfilename(
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initialdir=expanduser("~")
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)
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if len(tmp)==0:
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# Exception will be caught by except below
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raise Exception("No file selected.")
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inputFile = tmp
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# Decide if encrypting or decrypting
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if ".pcv" in inputFile.split("/")[-1]:
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suffix = " (will decrypt)"
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fin = open(inputFile,"rb")
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# Read file metadata (a little complex)
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tmp = fin.read(139)
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reedsolo = False
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if tmp[0]==43:
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reedsolo = True
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tmp = tmp[1:]
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else:
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tmp = tmp[:-1]
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tmp = bytes(headerRsc.decode(tmp)[0])
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tmp = tmp.replace(b"+",b"")
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tmp = int(tmp.decode("utf-8"))
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if not reedsolo:
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fin.seek(138)
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ad = fin.read(tmp)
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try:
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ad = bytes(headerRsc.decode(ad)[0])
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except ReedSolomonError:
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ad = b"Error decoding file metadata."
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ad = ad.decode("utf-8")
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fin.close()
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# Insert the metadata into its text box
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adArea["state"] = "normal"
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adArea.delete("1.0",tkinter.END)
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adArea.insert("1.0",ad)
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adArea["state"] = "disabled"
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adLabelString.set("File metadata (read only):")
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keepBtn["state"] = "normal"
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eraseBtn["state"] = "disabled"
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rsBtn["state"] = "disabled"
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cpasswordInput["state"] = "normal"
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cpasswordInput.delete(0,"end")
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cpasswordInput["state"] = "disabled"
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else:
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# Update the UI
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eraseBtn["state"] = "normal"
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keepBtn["state"] = "disabled"
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rsBtn["state"] = "normal"
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adArea["state"] = "normal"
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adArea.delete("1.0",tkinter.END)
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suffix = " (will encrypt)"
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adLabelString.set(adString)
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cpasswordInput["state"] = "normal"
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cpasswordInput.delete(0,"end")
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# Enable password box, etc.
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inputString.set(inputFile.split("/")[-1]+suffix)
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passwordInput["state"] = "normal"
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passwordInput.delete(0,"end")
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startBtn["state"] = "normal"
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statusString.set("Ready.")
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progress["value"] = 0
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# File decode error
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except UnicodeDecodeError:
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statusString.set(corruptedNotice)
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progress["value"] = 100
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# No file selected, do nothing
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except:
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pass
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# Focus the dummy button to remove ugly borders
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finally:
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dummy.focus()
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working = False
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# Button to select input file
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selectFileInput = tkinter.ttk.Button(
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tk,
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text="Select file",
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command=inputSelected,
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)
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selectFileInput.place(x=19,y=20)
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# Label that displays selected input file
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inputString = tkinter.StringVar(tk)
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inputString.set("Please select a file.")
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selectedInput = tkinter.ttk.Label(
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tk,
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textvariable=inputString
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)
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selectedInput.config(background="#f5f6f7")
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selectedInput.place(x=104,y=23)
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# Label that prompts user to enter a password
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passwordString = tkinter.StringVar(tk)
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passwordString.set("Password:")
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passwordLabel = tkinter.ttk.Label(
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tk,
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textvariable=passwordString
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)
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passwordLabel.place(x=17,y=56)
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passwordLabel.config(background="#f5f6f7")
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# A frame to make password input fill width
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passwordFrame = tkinter.Frame(
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tk,
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width=440,
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height=22
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)
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passwordFrame.place(x=20,y=76)
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passwordFrame.columnconfigure(0,weight=10)
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passwordFrame.grid_propagate(False)
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# Password input box
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passwordInput = tkinter.ttk.Entry(
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passwordFrame,
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show="\u2022"
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)
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passwordInput.grid(sticky="nesw")
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passwordInput["state"] = "disabled"
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cpasswordString = tkinter.StringVar(tk)
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cpasswordString.set("Confirm password:")
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cpasswordLabel = tkinter.ttk.Label(
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tk,
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textvariable=cpasswordString
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)
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cpasswordLabel.place(x=17,y=106)
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cpasswordLabel.config(background="#f5f6f7")
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# A frame to make confirm password input fill width
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cpasswordFrame = tkinter.Frame(
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tk,
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width=440,
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height=22
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)
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cpasswordFrame.place(x=20,y=126)
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cpasswordFrame.columnconfigure(0,weight=10)
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cpasswordFrame.grid_propagate(False)
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# Confirm password input box
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cpasswordInput = tkinter.ttk.Entry(
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cpasswordFrame,
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show="\u2022"
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)
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cpasswordInput.grid(sticky="nesw")
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cpasswordInput["state"] = "disabled"
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# Start the encryption/decryption process
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def start():
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global inputFile,outputFile,password,ad,kept,working,gMode,headerRsc
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dummy.focus()
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reedsolo = False
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chunkSize = 2**20
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# Decide if encrypting or decrypting
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if ".pcv" not in inputFile:
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mode = "encrypt"
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gMode = "encrypt"
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outputFile = inputFile+".pcv"
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reedsolo = rs.get()==1
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else:
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mode = "decrypt"
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gMode = "decrypt"
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# Check if Reed-Solomon was enabled by checking for "+"
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test = open(inputFile,"rb")
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decider = test.read(1).decode("utf-8")
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test.close()
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if decider=="+":
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reedsolo = True
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# Decrypted output is just input file without the extension
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outputFile = inputFile[:-4]
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# Check if file already exists (getsize() throws error if file not found)
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try:
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getsize(outputFile)
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force = messagebox.askyesno("Warning",overwriteNotice)
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dummy.focus()
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if force!=1:
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return
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except:
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pass
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# Disable inputs and buttons while encrypting/decrypting
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selectFileInput["state"] = "disabled"
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passwordInput["state"] = "disabled"
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cpasswordInput["state"] = "disabled"
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adArea["state"] = "disabled"
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startBtn["state"] = "disabled"
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eraseBtn["state"] = "disabled"
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keepBtn["state"] = "disabled"
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rsBtn["state"] = "disabled"
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# Make sure passwords match
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if passwordInput.get()!=cpasswordInput.get() and mode=="encrypt":
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selectFileInput["state"] = "normal"
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passwordInput["state"] = "normal"
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cpasswordInput["state"] = "normal"
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adArea["state"] = "normal"
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startBtn["state"] = "normal"
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eraseBtn["state"] = "normal"
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rsBtn["state"] = "normal"
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working = False
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progress["value"] = 100
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statusString.set("Passwords don't match.")
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return
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# Set progress bar indeterminate
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progress.config(mode="indeterminate")
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progress.start(15)
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statusString.set(rscNotice)
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# Create Reed-Solomon object
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if reedsolo:
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# 13 bytes per 128 bytes, ~10% larger output file
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rsc = RSCodec(13)
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# Set and get some variables
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working = True
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headerBroken = False
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reedsoloFixedCount = 0
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reedsoloErrorCount = 0
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dummy.focus()
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password = passwordInput.get().encode("utf-8")
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ad = adArea.get("1.0",tkinter.END).encode("utf-8")
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wipe = erase.get()==1
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# Open files
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fin = open(inputFile,"rb")
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if reedsolo and mode=="decrypt":
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# Move pointer one forward
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fin.read(1)
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fout = open(outputFile,"wb+")
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if reedsolo and mode=="encrypt":
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# Signal that Reed-Solomon was enabled with a "+"
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fout.write(b"+")
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# Generate values for encryption if encrypting
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if mode=="encrypt":
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salt = urandom(16)
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nonce = urandom(24)
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# Reed-Solomon-encode metadata
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ad = bytes(headerRsc.encode(ad))
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# Write the metadata to output
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tmp = str(len(ad)).encode("utf-8")
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# Right-pad with "+"
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while len(tmp)!=10:
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tmp += b"+"
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tmp = bytes(headerRsc.encode(tmp))
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fout.write(tmp) # Length of metadata
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fout.write(ad) # Metadata (associated data)
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# Write zeros as placeholders, come back to write over it later.
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# Note that 128 extra Reed-Solomon bytes are added
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fout.write(b"0"*192) # SHA3-512 of encryption key
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fout.write(b"0"*192) # CRC of file
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fout.write(b"0"*144) # Poly1305 tag
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# Reed-Solomon-encode salt and nonce
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fout.write(bytes(headerRsc.encode(salt))) # Argon2 salt
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fout.write(bytes(headerRsc.encode(nonce))) # ChaCha20 nonce
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# If decrypting, read values from file
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else:
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# Move past metadata into actual data
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tmp = fin.read(138)
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if tmp[0]==43:
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tmp = tmp[1:]+fin.read(1)
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tmp = bytes(headerRsc.decode(tmp)[0])
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tmp = tmp.replace(b"+",b"")
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adlen = int(tmp.decode("utf-8"))
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fin.read(int(adlen))
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# Read the salt, nonce, etc.
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cs = fin.read(192)
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crccs = fin.read(192)
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digest = fin.read(144)
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salt = fin.read(144)
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nonce = fin.read(152)
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# Reed-Solomon-decode each value
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try:
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cs = bytes(headerRsc.decode(cs)[0])
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except:
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headerBroken = True
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cs = cs[:64]
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try:
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crccs = bytes(headerRsc.decode(crccs)[0])
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except:
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headerBroken = True
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crccs = crccs[:64]
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try:
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digest = bytes(headerRsc.decode(digest)[0])
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except:
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headerBroken = True
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digest = digest[:16]
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try:
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salt = bytes(headerRsc.decode(salt)[0])
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except:
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headerBroken = True
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salt = salt[:16]
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try:
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nonce = bytes(headerRsc.decode(nonce)[0])
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except:
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headerBroken = True
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nonce = nonce[:24]
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if headerBroken:
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if keep.get()!=1:
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statusString.set(veryCorruptedNotice)
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fin.close()
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fout.close()
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remove(outputFile)
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# Reset UI
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selectFileInput["state"] = "normal"
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passwordInput["state"] = "normal"
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adArea["state"] = "normal"
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startBtn["state"] = "normal"
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keepBtn["state"] = "normal"
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working = False
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progress.stop()
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progress.config(mode="determinate")
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progress["value"] = 100
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return
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else:
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kept = "badlyCorrupted"
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# Show notice about key derivation
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statusString.set(derivingNotice)
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# Derive argon2id key
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key = hash_secret_raw(
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password,
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salt,
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time_cost=8, # 8 iterations
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memory_cost=2**20, # 2^20 Kibibytes (1GiB)
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parallelism=8, # 8 parallel threads
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hash_len=32,
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type=Type.ID
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)
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# Key deriving done, set progress bar determinate
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progress.stop()
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progress.config(mode="determinate")
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progress["value"] = 0
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# Compute hash of derived key
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check = sha3_512.new()
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check.update(key)
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check = check.digest()
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# If decrypting, check if key is correct
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if mode=="decrypt":
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# If key is incorrect...
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if not compare_digest(check,cs):
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if not headerBroken:
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statusString.set(passwordNotice)
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fin.close()
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fout.close()
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remove(outputFile)
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# Reset UI
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selectFileInput["state"] = "normal"
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passwordInput["state"] = "normal"
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adArea["state"] = "normal"
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startBtn["state"] = "normal"
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keepBtn["state"] = "normal"
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working = False
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progress["value"] = 100
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del key
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return
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# Create XChaCha20-Poly1305 object
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cipher = ChaCha20_Poly1305.new(key=key,nonce=nonce)
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# Cyclic redundancy check for file corruption
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crc = sha3_512.new()
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# Amount of data encrypted/decrypted, total file size, starting time
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done = 0
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total = getsize(inputFile)
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# If secure wipe enabled, create a wiper object
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if wipe:
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wiper = open(inputFile,"r+b")
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wiper.seek(0)
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# Keep track of time because it flies...
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startTime = datetime.now()
|
||||
previousTime = datetime.now()
|
||||
|
||||
# Continously read file in chunks of 1MB
|
||||
while True:
|
||||
if mode=="decrypt" and reedsolo:
|
||||
# Read a chunk plus Reed-Solomon recovery bytes
|
||||
piece = fin.read(1104905)
|
||||
else:
|
||||
piece = fin.read(chunkSize)
|
||||
if wipe:
|
||||
# If securely wipe, write random trash
|
||||
# to original file after reading it
|
||||
trash = urandom(len(piece))
|
||||
wiper.write(trash)
|
||||
# If EOF
|
||||
if not piece:
|
||||
if mode=="encrypt":
|
||||
# Get the cipher MAC tag (Poly1305)
|
||||
digest = cipher.digest()
|
||||
fout.flush()
|
||||
fout.close()
|
||||
fout = open(outputFile,"r+b")
|
||||
# Compute the offset and seek to it (unshift "+")
|
||||
rsOffset = 1 if reedsolo else 0
|
||||
fout.seek(138+len(ad)+rsOffset)
|
||||
# Write hash of key, CRC, and Poly1305 MAC tag
|
||||
fout.write(bytes(headerRsc.encode(check)))
|
||||
fout.write(bytes(headerRsc.encode(crc.digest())))
|
||||
fout.write(bytes(headerRsc.encode(digest)))
|
||||
else:
|
||||
# If decrypting, verify CRC
|
||||
crcdg = crc.digest()
|
||||
if not compare_digest(crccs,crcdg):
|
||||
# File is corrupted
|
||||
statusString.set(corruptedNotice)
|
||||
progress["value"] = 100
|
||||
fin.close()
|
||||
fout.close()
|
||||
# If keep file not checked...
|
||||
if keep.get()!=1:
|
||||
remove(outputFile)
|
||||
# Reset UI
|
||||
selectFileInput["state"] = "normal"
|
||||
passwordInput["state"] = "normal"
|
||||
adArea["state"] = "normal"
|
||||
startBtn["state"] = "normal"
|
||||
keepBtn["state"] = "normal"
|
||||
working = False
|
||||
del fin,fout,cipher,key
|
||||
return
|
||||
else:
|
||||
if not kept:
|
||||
kept = "corrupted"
|
||||
# Next, verify MAC tag (Poly1305)
|
||||
try:
|
||||
# Throws ValueError if incorrect Poly1305
|
||||
cipher.verify(digest)
|
||||
except:
|
||||
if not reedsoloErrorCount and not headerBroken:
|
||||
# File is modified
|
||||
statusString.set(modifiedNotice)
|
||||
progress["value"] = 100
|
||||
fin.close()
|
||||
fout.close()
|
||||
# If keep file not checked...
|
||||
if keep.get()!=1:
|
||||
remove(outputFile)
|
||||
# Reset UI
|
||||
selectFileInput["state"] = "normal"
|
||||
passwordInput["state"] = "normal"
|
||||
adArea["state"] = "normal"
|
||||
startBtn["state"] = "normal"
|
||||
keepBtn["state"] = "normal"
|
||||
working = False
|
||||
del fin,fout,cipher,key
|
||||
return
|
||||
else:
|
||||
if not kept:
|
||||
kept = "modified"
|
||||
break
|
||||
|
||||
# Encrypt/decrypt chunk and update CRC
|
||||
if mode=="encrypt":
|
||||
# Encrypt piece
|
||||
data = cipher.encrypt(piece)
|
||||
# Update checksum
|
||||
crc.update(data)
|
||||
if reedsolo:
|
||||
# Encode using Reed-Solomon if user chooses
|
||||
data = bytes(rsc.encode(data))
|
||||
else:
|
||||
# Basically encrypting but in reverse
|
||||
if reedsolo:
|
||||
try:
|
||||
data,_,fixed = rsc.decode(piece)
|
||||
except ReedSolomonError:
|
||||
# File is really corrupted
|
||||
if not reedsoloErrorCount:
|
||||
if keep.get()!=1:
|
||||
statusString.set(veryCorruptedNotice)
|
||||
progress["value"] = 100
|
||||
# If keep file not checked...
|
||||
if keep.get()!=1:
|
||||
fin.close()
|
||||
fout.close()
|
||||
remove(outputFile)
|
||||
# Reset UI
|
||||
selectFileInput["state"] = "normal"
|
||||
passwordInput["state"] = "normal"
|
||||
adArea["state"] = "normal"
|
||||
startBtn["state"] = "normal"
|
||||
keepBtn["state"] = "normal"
|
||||
working = False
|
||||
progress["value"] = 100
|
||||
del fin,fout,cipher,key
|
||||
return
|
||||
else:
|
||||
kept = "badlyCorrupted"
|
||||
# Attempt to recover badly corrupted data
|
||||
data = b""
|
||||
piece = piece[:-13]
|
||||
counter = 0
|
||||
while True:
|
||||
# Basically just strip the Reed-Solomon bytes
|
||||
# and return the original non-encoded data
|
||||
if counter<1104905:
|
||||
data += piece[counter:counter+242]
|
||||
counter += 255 # 255 bytes, 242 original
|
||||
else:
|
||||
break
|
||||
fixed = bytearray()
|
||||
reedsoloErrorCount += 1
|
||||
data = bytes(data)
|
||||
reedsoloFixedCount += len(fixed)
|
||||
crc.update(data)
|
||||
data = cipher.decrypt(data)
|
||||
else:
|
||||
crc.update(piece)
|
||||
data = cipher.decrypt(piece)
|
||||
|
||||
# Calculate speed, ETA, etc.
|
||||
first = False
|
||||
elapsed = (datetime.now()-previousTime).total_seconds() or 0.0001
|
||||
sinceStart = (datetime.now()-startTime).total_seconds() or 0.0001
|
||||
previousTime = datetime.now()
|
||||
# Prevent divison by zero
|
||||
if not elapsed:
|
||||
elapsed = 0.1**6
|
||||
percent = done*100/total
|
||||
progress["value"] = percent
|
||||
rPercent = round(percent)
|
||||
speed = (done/sinceStart)/10**6
|
||||
# Prevent divison by zero
|
||||
if not speed:
|
||||
first = True
|
||||
speed = 0.1**6
|
||||
rSpeed = str(round(speed,2))
|
||||
# Right-pad with zeros to large prevent layout shifts
|
||||
while len(rSpeed.split(".")[1])!=2:
|
||||
rSpeed += "0"
|
||||
eta = round((total-done)/(speed*10**6))
|
||||
# Seconds to minutes if seconds more than 59
|
||||
if eta>=60:
|
||||
eta = f"{eta//60}m {eta%60}"
|
||||
if isinstance(eta,int) or isinstance(eta,float):
|
||||
if eta<0:
|
||||
eta = 0
|
||||
# If it's the first round and no data/predictions yet...
|
||||
if first:
|
||||
statusString.set("...% at ... MB/s (ETA: ...s)")
|
||||
else:
|
||||
# Update status
|
||||
info = f"{rPercent}% at {rSpeed} MB/s (ETA: {eta}s)"
|
||||
if reedsolo and mode=="decrypt" and reedsoloFixedCount:
|
||||
eng = "s" if reedsoloFixedCount!=1 else ""
|
||||
info += f", fixed {reedsoloFixedCount} corrupted byte{eng}"
|
||||
if reedsolo and mode=="decrypt" and reedsoloErrorCount:
|
||||
info += f", {reedsoloErrorCount} MB unrecoverable"
|
||||
statusString.set(info)
|
||||
|
||||
# Increase done and write to output
|
||||
done += 1104905 if (reedsolo and mode=="decrypt") else chunkSize
|
||||
fout.write(data)
|
||||
|
||||
# Show appropriate notice if file corrupted or modified
|
||||
if not kept:
|
||||
if mode=="encrypt":
|
||||
output = inputFile.split("/")[-1]+".pcv"
|
||||
else:
|
||||
output = inputFile.split("/")[-1].replace(".pcv","")
|
||||
statusString.set(f"Completed. (Output: {output})")
|
||||
# Show Reed-Solomon stats if it fixed corrupted bytes
|
||||
if mode=="decrypt" and reedsolo and reedsoloFixedCount:
|
||||
statusString.set(f"Completed with {reedsoloFixedCount} bytes fixed."+
|
||||
f" (Output: {output})")
|
||||
else:
|
||||
if kept=="modified":
|
||||
statusString.set(kModifiedNotice)
|
||||
elif kept=="corrupted":
|
||||
statusString.set(kCorruptedNotice)
|
||||
else:
|
||||
statusString.set(kVeryCorruptedNotice)
|
||||
|
||||
# Reset variables and UI states
|
||||
selectFileInput["state"] = "normal"
|
||||
adArea["state"] = "normal"
|
||||
adArea.delete("1.0",tkinter.END)
|
||||
adArea["state"] = "disabled"
|
||||
startBtn["state"] = "disabled"
|
||||
passwordInput["state"] = "normal"
|
||||
passwordInput.delete(0,"end")
|
||||
passwordInput["state"] = "disabled"
|
||||
cpasswordInput["state"] = "normal"
|
||||
cpasswordInput.delete(0,"end")
|
||||
cpasswordInput["state"] = "disabled"
|
||||
progress["value"] = 0
|
||||
inputString.set("Please select a file.")
|
||||
keepBtn["state"] = "normal"
|
||||
keep.set(0)
|
||||
keepBtn["state"] = "disabled"
|
||||
eraseBtn["state"] = "normal"
|
||||
erase.set(0)
|
||||
eraseBtn["state"] = "disabled"
|
||||
rs.set(0)
|
||||
rsBtn["state"] = "disabled"
|
||||
if not kept:
|
||||
fout.flush()
|
||||
fsync(fout.fileno())
|
||||
fout.close()
|
||||
fin.close()
|
||||
if wipe:
|
||||
# Make sure to flush file
|
||||
wiper.flush()
|
||||
fsync(wiper.fileno())
|
||||
wiper.close()
|
||||
remove(inputFile)
|
||||
inputFile = ""
|
||||
outputFile = ""
|
||||
password = ""
|
||||
ad = ""
|
||||
kept = False
|
||||
working = False
|
||||
# Wipe keys for safety
|
||||
del fin,fout,cipher,key
|
||||
|
||||
# Wraps the start() function with error handling
|
||||
def wrapper():
|
||||
global working,gMode
|
||||
# Try start() and handle errors
|
||||
try:
|
||||
start()
|
||||
except:
|
||||
# Reset UI accordingly
|
||||
progress.stop()
|
||||
progress.config(mode="determinate")
|
||||
progress["value"] = 100
|
||||
selectFileInput["state"] = "normal"
|
||||
passwordInput["state"] = "normal"
|
||||
startBtn["state"] = "normal"
|
||||
|
||||
if gMode=="decrypt":
|
||||
keepBtn["state"] = "normal"
|
||||
else:
|
||||
adArea["state"] = "normal"
|
||||
cpasswordInput["state"] = "normal"
|
||||
rsBtn["state"] = "normal"
|
||||
eraseBtn["state"] = "normal"
|
||||
|
||||
statusString.set(unknownErrorNotice)
|
||||
dummy.focus()
|
||||
working = False
|
||||
finally:
|
||||
sys.exit(0)
|
||||
|
||||
# Encryption/decrypt is done is a separate thread
|
||||
# so the UI isn't blocked. This is a wrapper
|
||||
# to spawn a thread and start it.
|
||||
def startWorker():
|
||||
thread = Thread(target=wrapper,daemon=True)
|
||||
thread.start()
|
||||
|
||||
# ad stands for "associated data"/metadata
|
||||
adLabelString = tkinter.StringVar(tk)
|
||||
adLabelString.set(adString)
|
||||
adLabel = tkinter.ttk.Label(
|
||||
tk,
|
||||
textvariable=adLabelString
|
||||
)
|
||||
adLabel.place(x=17,y=158)
|
||||
adLabel.config(background="#f5f6f7")
|
||||
|
||||
# Frame so metadata text box can fill width
|
||||
adFrame = tkinter.Frame(
|
||||
tk,
|
||||
width=440,
|
||||
height=100
|
||||
)
|
||||
adFrame.place(x=20,y=178)
|
||||
adFrame.columnconfigure(0,weight=10)
|
||||
adFrame.grid_propagate(False)
|
||||
|
||||
# Metadata text box
|
||||
adArea = tkinter.Text(
|
||||
adFrame,
|
||||
exportselection=0
|
||||
)
|
||||
adArea.config(font=("Consolas",12))
|
||||
adArea.grid(sticky="we")
|
||||
adArea["state"] = "disabled"
|
||||
|
||||
# Check box for keeping corrupted/modified output
|
||||
keep = tkinter.IntVar()
|
||||
keepBtn = tkinter.ttk.Checkbutton(
|
||||
tk,
|
||||
text=keepNotice,
|
||||
variable=keep,
|
||||
onvalue=1,
|
||||
offvalue=0,
|
||||
command=lambda:dummy.focus()
|
||||
)
|
||||
keepBtn.place(x=18,y=290)
|
||||
keepBtn["state"] = "disabled"
|
||||
|
||||
# Check box for securely erasing original file
|
||||
erase = tkinter.IntVar()
|
||||
eraseBtn = tkinter.ttk.Checkbutton(
|
||||
tk,
|
||||
text=eraseNotice,
|
||||
variable=erase,
|
||||
onvalue=1,
|
||||
offvalue=0,
|
||||
command=lambda:dummy.focus()
|
||||
)
|
||||
eraseBtn.place(x=18,y=310)
|
||||
eraseBtn["state"] = "disabled"
|
||||
|
||||
# Check box for Reed Solomon
|
||||
rs = tkinter.IntVar()
|
||||
rsBtn = tkinter.ttk.Checkbutton(
|
||||
tk,
|
||||
text=rsNotice,
|
||||
variable=rs,
|
||||
onvalue=1,
|
||||
offvalue=0,
|
||||
command=lambda:dummy.focus()
|
||||
)
|
||||
rsBtn.place(x=18,y=330)
|
||||
rsBtn["state"] = "disabled"
|
||||
|
||||
# Frame so start button can fill width
|
||||
startFrame = tkinter.Frame(
|
||||
tk,
|
||||
width=442,
|
||||
height=25
|
||||
)
|
||||
startFrame.place(x=19,y=360)
|
||||
startFrame.columnconfigure(0,weight=10)
|
||||
startFrame.grid_propagate(False)
|
||||
# Start button
|
||||
startBtn = tkinter.ttk.Button(
|
||||
startFrame,
|
||||
text="Start",
|
||||
command=startWorker
|
||||
)
|
||||
startBtn.grid(sticky="nesw")
|
||||
startBtn["state"] = "disabled"
|
||||
|
||||
# Progress bar
|
||||
progress = tkinter.ttk.Progressbar(
|
||||
tk,
|
||||
orient=tkinter.HORIZONTAL,
|
||||
length=440,
|
||||
mode="determinate"
|
||||
)
|
||||
progress.place(x=20,y=388)
|
||||
|
||||
# Status label
|
||||
statusString = tkinter.StringVar(tk)
|
||||
statusString.set("Ready.")
|
||||
status = tkinter.ttk.Label(
|
||||
tk,
|
||||
textvariable=statusString
|
||||
)
|
||||
status.place(x=17,y=416)
|
||||
status.config(background="#f5f6f7")
|
||||
|
||||
# Credits :)
|
||||
hint = "Created by Evan Su. Click for details and source."
|
||||
creditsString = tkinter.StringVar(tk)
|
||||
creditsString.set(hint)
|
||||
credits = tkinter.ttk.Label(
|
||||
tk,
|
||||
textvariable=creditsString,
|
||||
cursor="hand2"
|
||||
)
|
||||
credits["state"] = "disabled"
|
||||
credits.config(background="#f5f6f7")
|
||||
credits.place(x=17,y=446)
|
||||
source = "https://github.com/HACKERALERT/Picocrypt"
|
||||
credits.bind("<Button-1>",lambda e:webbrowser.open(source))
|
||||
|
||||
# Version
|
||||
versionString = tkinter.StringVar(tk)
|
||||
versionString.set("v1.10")
|
||||
version = tkinter.ttk.Label(
|
||||
tk,
|
||||
textvariable=versionString
|
||||
)
|
||||
version["state"] = "disabled"
|
||||
version.config(background="#f5f6f7")
|
||||
version.place(x=430,y=446)
|
||||
|
||||
# Dummy button to remove focus from other buttons
|
||||
# and prevent ugly border highlighting
|
||||
dummy = tkinter.ttk.Button(
|
||||
tk
|
||||
)
|
||||
dummy.place(x=480,y=0)
|
||||
|
||||
# Function to create Reed-Solomon header codec
|
||||
def createRsc():
|
||||
global headerRsc
|
||||
headerRsc = RSCodec(128)
|
||||
sys.exit(0)
|
||||
|
||||
# Close window only if not encrypting or decrypting
|
||||
def onClose():
|
||||
if not working:
|
||||
tk.destroy()
|
||||
|
||||
# Main application loop
|
||||
if __name__=="__main__":
|
||||
# Create Reed-Solomon header codec
|
||||
tmp = Thread(target=createRsc,daemon=True)
|
||||
tmp.start()
|
||||
# Start tkinter
|
||||
tk.protocol("WM_DELETE_WINDOW",onClose)
|
||||
tk.mainloop()
|
||||
sys.exit(0)
|
||||
Loading…
Reference in New Issue