Define "salt" in the context of cryptography, and explain why it is employed in this context. Learn about how it is used to make password cracking harder and how it is applied before moving further with your project

Describe what is meant by the term "salt" when it is used in relation with cryptography. You should talk about the several methods that may be used to make passwords more secure.

Please explain what a challenge–response system is and how it works so that users can be verified. It's not clear at first glance what about this system makes it safer than an old-fashioned method that uses passwords.

Describe a "authentication challenge-response system" and provide examples of how it could be implemented. What advantages does this method have over others, such as those requiring passwords?