Question 1 What is the output of $MD5($studybyyourself.com$)$ ? 84e27b774c17cf8c0106f3be5b267c53b92300c86a5b36bb45345695 59c7b0653de9cb65dfdf8386d723092f a3ebeb90c566424697202c7ff2d522db 897d0c7adc678abea694f47bd42a583ab34ec118ada96b8cfb4ef53f
Question 2 Why is the hashing function a so called one-way function ? because the processing for getting the input back is too big from a time perspective because the output is randomized because there is a loss of information because the hashing function ensures the data integrity
Question 3 Why does the digital signature ensure the authentication ? because the hashing function is a one-way function because a hashing function cannot generate two different hashes because the signature can be properly decrypted only with the public key related to the private key which was used for the signature because the private key is secret and is then never revealed