Filencrypt is a cryptography project started in 2021 that encrypts and decrypts your files of all extensions (txt, js, png...) in AES-256 CBC Mode. Filencrypt works with a password chosen by the user and with an initialization vector (IV) generated by the program.
git clone https://github.com/deo7/Filencrypt.git
cd Filencrypt
pip install -r requirements.txtWindows :
python filencrypt.py [-h] [-e] [-d] [-i] [-c]
Linux :
python3 filencrypt.py [-h] [-e] [-d] [-i] [-c]
As you can see above, I encrypt a 'test.txt' file with the password 'Filencrypt'. Thus, the original content of this file become encrypted and unreadable.
The program creates a file 'AES_IV.txt' containing the initialization vector (IV) used for the AES encryption of THIS file (and only this file, a file encryption -> a new IV generated). The IV is a 128 byte block uses by AES-256 CBC Mode for encryption.
AES_IV.txt file :
Finally, I decrypt my file with the password AND initialization vector (see below).
- WARNING : If you decrypt your file with an incorrect password / IV, you will get errors and incorrect decryption.
To conclude, here is a table that resume the encryption and the decryption of 'test.txt' :
| Original file content | Encrypted file content (with my password and my IV) | Decrypted file content |
|---|---|---|
| Hello world ! | ßCå2µ�Ä£Ë�ÅPð | Hello world ! |
