Encryption And Decryption Tool

This C++ program provides a simple file encryption and decryption tool using XOR encryption.

Usage

1. Compile the Program:

   g++ EncryptionDecryptionTool.cpp -o EncryptionDecryptionTool

2. Run the Program:

   ./EncryptionDecryptionTool

3. Choose Operation:

   • Enter 1 to encrypt a file.
   • Enter 2 to decrypt a file.

4. Enter File Details:

   • Enter the input file name.
   • Enter the output file name.
   • Enter the encryption/decryption key.

5. Example:

   File Encryption/Decryption Tool
   1. Encrypt
   2. Decrypt
   Enter your choice: 1
   Enter input file name: input.txt
   Enter output file name: encrypted_output.txt
   Enter encryption/decryption key: my_secret_key

6. Output:

   • The program will display a success message after encryption or decryption.

Error Handling

• If there is an error opening the files, an error message will be displayed.
• If an invalid choice is entered, an error message will be shown.

Notes

• The program uses XOR encryption with a provided key for both encryption and decryption.
• Make sure to remember the encryption key for later decryption.

How to Run

To run this program:

1. Make sure you have a C compiler installed on your computer.
2. Copy the code into a file with a .cpp extension, for example, EncryptionDecryptionTool.cpp.
3. Open a terminal or command prompt and navigate to the directory where your file is located.
4. Compile the program by entering: g++ EncryptionDecryptionTool.cpp -o EncryptionDecryptionTool
5. Run the compiled program: ./EncryptionDecryptionTool

Or you can run this program also using:

   make EncryptionDecryptionTool

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