F-Blowfish (Optimized Blowfish with F-Function Modification)

Implementasi Teknik Enkripsi Blowfish yang Dioptimalkan dengan Modifikasi F Function

Overview

F-Blowfish is an implementation of the Blowfish encryption algorithm with an optimized F-function modification. The Blowfish algorithm is a symmetric-key block cipher designed by Bruce Schneier in 1993. This implementation introduces an optimized F-function for improved performance.

Features

• Optimized F-Function: The F-function, responsible for the confusion in Blowfish, has been optimized for efficiency.

• Subkey Generation: The algorithm generates subkeys dynamically based on the provided key.

• Padding: Text input is padded to ensure proper block processing during encryption.

• Encryption: The provided text input is encrypted using the F-Blowfish algorithm.

• Decryption: The encrypted data can be decrypted to retrieve the original text.

How to Use

1. Installation:

   • Clone the repository to your local machine.

2. Dependencies:

   • Ensure that you have the required dependencies installed. (Check the constants module for any specific dependencies)

3. Run the Code:

   • Execute the driver() function in the main script.

4. Input:

   • Enter the text you want to encrypt when prompted.

5. Output:

   • The encrypted data in hexadecimal format will be displayed, along with the encryption time.

   • The decrypted data and decryption time will also be presented.

Sample Usage

# Main
if __name__ == "__main__":
    driver()

Performance

• Encryption Time:

  • The time taken to encrypt the input data is displayed in milliseconds.

• Decryption Time:

  • The time taken to decrypt the encrypted data is displayed in milliseconds.

Contribution

Contributions to optimize the algorithm further or enhance its features are welcome. Please follow the standard GitHub workflow:

1. Fork the repository.
2. Create a new branch.
3. Make changes and commit them.
4. Push the changes to your fork.
5. Create a pull request.

License

This project is licensed under the MIT License.

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Feel free to use and contribute to F-Blowfish! If you have any questions or suggestions, please open an issue.