what you hope to achieve by doing so. Compare and contrast the merits lownsides of various verification methods.

In what various forms can information be exchanged? May I request an illustration that elucidates your intended meaning?

Do you think you could explain the idea of a challenge-and-response authentication system in your own words, so that I can have a better grasp on it? (CRAS). What makes this technique of user verification more safe than relying just on passwords?

In what many forms may information be exchanged? Could you give me an example of what you mean?