Create a 2-3 page MS Word document following APA guidelines (first person should not be used). Support your answers.Research and answer the following components:1. Define public-key cryptosystem2. In your own opinion, why do you think it is important to utilize public-key cryptosystem?3. How is it different from symmetric key algorithms?4. What are the 5 main requirements that a public-key cryptosystem must fulfill to be a secured algorithm?