dpaste/iiBdD (Python)

import base64
import hashlib
from Crypto import Random
from Crypto.Cipher import AES
import tkinter as tk
class AESCipher:
def __init__(self, key):
self.bs = AES.block_size
self.key = hashlib.sha256(key.encode()).digest()
def encrypt(self, raw):
raw = self._pad(raw)
iv = Random.new().read(AES.block_size)
cipher = AES.new(self.key, AES.MODE_CBC, iv)
return base64.b64encode(iv + cipher.encrypt(raw.encode()))
def decrypt(self, enc):
enc = base64.b64decode(enc)
iv = enc[:AES.block_size]
cipher = AES.new(self.key, AES.MODE_CBC, iv)
return AESCipher._unpad(cipher.decrypt(enc[AES.block_size:])).decode('utf-8')
def _pad(self, s):
return s + (self.bs - len(s) % self.bs) * chr(self.bs - len(s) % self.bs)
@staticmethod
def _unpad(s):
return s[:-ord(s[len(s)-1:])]
def encrypt_text():
key = key_entry.get()
message = message_entry.get("1.0", tk.END)
cipher = AESCipher(key)
encrypted_message = cipher.encrypt(message)
result_text.delete("1.0", tk.END)
result_text.insert(tk.END, encrypted_message.decode())
def decrypt_text():
key = key_entry.get()
message = message_entry.get("1.0", tk.END)
cipher = AESCipher(key)
decrypted_message = cipher.decrypt(message)
result_text.delete("1.0", tk.END)
result_text.insert(tk.END, decrypted_message)
root = tk.Tk()
root.title("AES-256 Encryption/Decryption")
key_label = tk.Label(root, text="Enter encryption key:")
key_label.pack()
key_entry = tk.Entry(root, width=50)
key_entry.pack()
message_label = tk.Label(root, text="Enter message to encrypt/decrypt:")
message_label.pack()
message_entry = tk.Text(root, height=10, width=50)
message_entry.pack()
encrypt_button = tk.Button(root, text="Encrypt", command=encrypt_text)
encrypt_button.pack()
decrypt_button = tk.Button(root, text="Decrypt", command=decrypt_text)
decrypt_button.pack()
result_label = tk.Label(root, text="Result:")
result_label.pack()
result_text = tk.Text(root, height=10, width=50)
result_text.pack()
root.mainloop()

Edit this Snippet

Syntax

Expires

Right-to-Left

Content import base64 import hashlib from Crypto import Random from Crypto.Cipher import AES import tkinter as tk class AESCipher: def __init__(self, key): self.bs = AES.block_size self.key = hashlib.sha256(key.encode()).digest() def encrypt(self, raw): raw = self._pad(raw) iv = Random.new().read(AES.block_size) cipher = AES.new(self.key, AES.MODE_CBC, iv) return base64.b64encode(iv + cipher.encrypt(raw.encode())) def decrypt(self, enc): enc = base64.b64decode(enc) iv = enc[:AES.block_size] cipher = AES.new(self.key, AES.MODE_CBC, iv) return AESCipher._unpad(cipher.decrypt(enc[AES.block_size:])).decode('utf-8') def _pad(self, s): return s + (self.bs - len(s) % self.bs) * chr(self.bs - len(s) % self.bs) @staticmethod def _unpad(s): return s[:-ord(s[len(s)-1:])] def encrypt_text(): key = key_entry.get() message = message_entry.get("1.0", tk.END) cipher = AESCipher(key) encrypted_message = cipher.encrypt(message) result_text.delete("1.0", tk.END) result_text.insert(tk.END, encrypted_message.decode()) def decrypt_text(): key = key_entry.get() message = message_entry.get("1.0", tk.END) cipher = AESCipher(key) decrypted_message = cipher.decrypt(message) result_text.delete("1.0", tk.END) result_text.insert(tk.END, decrypted_message) root = tk.Tk() root.title("AES-256 Encryption/Decryption") key_label = tk.Label(root, text="Enter encryption key:") key_label.pack() key_entry = tk.Entry(root, width=50) key_entry.pack() message_label = tk.Label(root, text="Enter message to encrypt/decrypt:") message_label.pack() message_entry = tk.Text(root, height=10, width=50) message_entry.pack() encrypt_button = tk.Button(root, text="Encrypt", command=encrypt_text) encrypt_button.pack() decrypt_button = tk.Button(root, text="Decrypt", command=decrypt_text) decrypt_button.pack() result_label = tk.Label(root, text="Result:") result_label.pack() result_text = tk.Text(root, height=10, width=50) result_text.pack() root.mainloop()