Error: Fernet key must be 32 url-safe base64-encoded bytes. Whenever trying to run the program

KEIKAS 0
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Here's my code, I'm trying to make a Fernet decoder but whenever I try to run the program I get this error:

ValueError: Fernet key must be 32 URL-safe base64-encoded bytes.

import dearpygui.dearpygui as dpg
from cryptography.fernet import Fernet
import base64

def GetCrypto():
   Crypt = dpg.get_value("CG")
   Pass =  dpg.get_value("CP")
   fernet = Fernet(Pass)


   decMessage = fernet.decrypt(Crypt).decode('utf-8')
   print(decMessage)


dpg.create_context()
dpg.create_viewport()
dpg.setup_dearpygui()
dpg.create_viewport(title='Custom Title', width=600, height=200)
with dpg.window(label="KEIKAS", width=600, height=250):
    dpg.add_input_text(tag="CG", label="Cryptografy")
    dpg.add_input_text(tag="CP", label="Cryptografy Password")
    dpg.add_button(label="Decrypt", callback = GetCrypto)
dpg.show_viewport()
dpg.start_dearpygui()
dpg.destroy_context()

key: b'KnX5YN3hvP54jOIMkacWdqxFX1RKk8cjqVZjGJbAscM='

fernet python
1 Answers

I have no idea what values you put in your GUI but this works for me:

Maybe you used wrong values in wrong Input Text.
OR maybe you forgot to enocode string to bytes.

from cryptography.fernet import Fernet

Pass   = b'KnX5YN3hvP54jOIMkacWdqxFX1RKk8cjqVZjGJbAscM='
#Pass   = 'KnX5YN3hvP54jOIMkacWdqxFX1RKk8cjqVZjGJbAscM='.encode('utf-8')
fernet = Fernet(Pass)

text = "Hello World!"

Crypto = fernet.encrypt(text.encode('utf-8')).decode('utf-8')
print('Crypto:', Crypto)

decMessage = fernet.decrypt(Crypto.encode('utf-8')).decode('utf-8')
print('decMessage:', decMessage)

Result:

Crypto: gAAAAABjHPqIoajV-v1V7pginMhkwFBtJfZCLpJjmsT7AxHpc3guBX5otRqJWK5gCWxLh9Iy_9LhoQTzk3en2DDr_OwcWT276A==
decMessage: Hello World!
furas0
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