Secure Notepad

This Java application provides a secure notepad using the DES and AES encryption algorithms. The notepad allows users to open, save, encrypt, and decrypt text files.

Features

• File Operations:

  • Open: Load a text file into the notepad.
  • Save: Save the contents of the notepad to a text file.

• Encryption/Decryption:

  • Encrypt (DES): Encrypt the text using the DES algorithm.
  • Decrypt (DES): Decrypt the text previously encrypted with DES.
  • Encrypt (AES): Encrypt the text using the AES algorithm.
  • Decrypt (AES): Decrypt the text previously encrypted with AES.

Usage

1. Open/Save File:

   • Use the "File" menu to open and save text files. The application uses a simple text file format.

2. Encryption/Decryption:

   • Use the "Encryption" menu to perform encryption and decryption operations.
   • Select the desired encryption algorithm (DES or AES) and choose the appropriate option.

3. Viewing Encrypted Text:

   • Encrypted text is displayed in hexadecimal format.

How to Build and Run

1. Clone the repository:

    git clone https://github.com/zeynepssasmaz/secure-notepad.git

2. Compile the Java code:

    javac SecureNotepad.java

3. Run the application:

   java SecureNotepad