Answered: Could you define a…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Could you define a challenge-and-response authentication system in your own words?

By asking users to fulfill a task, the CRAS system ascertains if they are real or not. The user's input is then used to construct a response, which is compared to the expected response. The user is assumed to be real if the responses line up.
A challenge-and-response authentication system is a safety precaution that restricts access to the system by requiring the user to submit information that only they and the system should be aware of. Typically, a password or PIN is used as this piece of information.
A security procedure known as a challenge-and-response authentication system uses two factors to confirm the user's identity. Usually, the first factor is something that the user is aware of, like a password or PIN.

The user's possession of something, such as a smart card or a mobile phone, is usually the second criteria. Systems that use challenge-and-response authentication are used to stop unauthorized access to sensitive information.

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