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? (CRAS). Why is this authentication method more secure than one that relies on a password?

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

CRAS is a system that determines whether a user is genuine or not by asking them to complete a challenge. A response is then generated based on the information provided by the user, which is then matched against the expected response. If the responses match, the user is considered to be genuine.

A challenge-and-response authentication system is a security measure that requires the user to provide a piece of information that only the user and the system should know in order to gain access to the system. This piece of information is typically a password or a PIN.

A challenge-and-response authentication system is a security process that requires two factors to verify the user's identity. The first factor is typically something the user knows, like a password or PIN.

The second factor is typically something the user has, like a smart card or a mobile phone. Challenge-and-response authentication systems are used to prevent unauthorized access to sensitive data.

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