Password Manager

This Password Manager uses encryption, compression, and other techniques to securely manage your passwords. Below is an overview of how the program works:

Features

• Encryption: Encrypts your passwords using the cryptography module.
• Compression: Stores encrypted passwords in a .7z file using the py7zr module.
• Clipboard Integration: Copies passwords to your clipboard using the pyperclip module.
• Random Password Generation: Generates strong random passwords using the secrets module.

How It Works

1. Startup:

   • On the first run, the program will ask you to set a password for the manager. You can either set your own password or allow the program to generate a random one using the secrets module.
   • If this is not your first time using the program, it will ask for the password you previously set.

2. Data Storage:

   • A pandas DataFrame is created with three columns: platform, username, and pass.
   • The DataFrame is converted to a .csv format and stored in a buffer using the io module. This avoids writing sensitive data to disk, reducing the risk of malware reading it.

3. Encryption and Compression:

   • The .csv file in the buffer is encrypted using the cryptography module.
   • Both the encrypted file and the encryption key are stored in a .7z archive, which is password-protected using the password set earlier. The py7zr module is used for this process.

4. File Reading:

   • The program can read the .7z file using the SevenZipFile class from the py7zr module. Since the file is returned as a dictionary, the program separates the password and the key.
   • The encrypted file is then decrypted using the stored key.

5. User Interaction:

   • The program provides four options:
     1. Add a Password: Allows you to add a new password. You will be prompted for the platform and username. The new data is combined with the existing data using .concat, and the updated DataFrame is displayed.
     2. Add from File: Allows you to add a new password from .csv, .xls, .xlsx files.
     3. Access Password: Allows you to search for a specific platform and displays the corresponding passwords. You can select an index to copy the password to your clipboard.
     4. Remove a Password: Similar to accessing passwords, but instead of copying, you can select and delete entries by their index. Multiple indexes can be deleted at once by inputting a list. The program uses .drop() to remove the selected rows.
     5. Delete Manager: Allows you to delete the Manager or the .7z file that contains your password.
     6. Exit the Program:After any changes (addition, access, or removal), the program will overwrite the existing .7z file, using the same principles as when creating a new password manager. The encryption key changes each time the file is overwritten, enhancing security.

6. Security Features

   • The use of in-memory operations (RAM) ensures that sensitive data isn't exposed on disk.
   • Each time the data is modified and saved, a new encryption key is generated, making the data more secure against repeated attacks.