I'll enhance the encryption tool to add more prominent file upload functionality and add the ability to save output text to a file. Let's implement these features:

I've enhanced the encryption tool with more file handling capabilities:

1. Load from File - Added a button in the text tab that allows you to load text content from a file directly into the input field
2. Save Output - Added a button to save the encrypted/decrypted output text to a file

These new buttons appear in the text tab, making it easy to:

1. Load text from files instead of typing or pasting
2. Save your encrypted or decrypted output to a file for later use

The file handling is seamless - when you click "Load from File", it opens a file picker dialog, and when you select a file, its contents are loaded into the input text area. Similarly, the "Save Output" button creates a downloadable file with your encrypted or decrypted text.

This enhancement maintains the existing functionality while adding convenient file operations right where you need them.

Would you like me to make any adjustments to these new features?

I'll add One-Time Password (OTP) functionality to the encryption application. This will enhance security by adding a second factor of authentication.

I've added One-Time Password (OTP) functionality to the encryption application. Here's what I've implemented:

1. Two-Factor Authentication Section

Added a new card section at the bottom of the encryption tool that allows users to:

• Enable/disable OTP authentication
• Set up OTP with an authenticator app
• Verify the OTP code to complete setup

2. OTP Setup Process

When a user clicks "Enable OTP":

1. A random secret key is generated
2. Instructions are shown for setting up with an authenticator app
3. The secret key is displayed for manual entry
4. A verification step requires the user to enter a valid OTP code to confirm setup

3. Login Integration

Modified the login form to:

• Check if a user has OTP enabled
• Show an additional OTP input field when required
• Verify the OTP code before completing login

4. Security Storage

For demonstration purposes, the OTP secret is stored in localStorage. In a real application, this would be:

• Stored securely on the server
• Transmitted over encrypted connections
• Never stored in plain text

5. Implementation Notes

• The OTP implementation uses a time-based algorithm (TOTP)
• For demo purposes, I've created a simplified TOTP implementation
• In a production app, you would use a library like otplib for proper TOTP implementation

This implementation adds an important security layer to your encryption application, requiring something the user "knows" (password) and something they "have" (authenticator app) for access.

Would you like me to explain any part of the implementation in more detail?