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Unit 6 - User Authentication and Kerberos 6.1

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Unit 6 - User Authentication and Kerberos 6.1

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Questions and Answers

What is the primary function of the Key Distribution Center (KDC) in a network encryption system?

Assigning secret keys to authorized users (correct)

Encrypting all data transmitted through the network

Generating new biometric data for users

Providing physical access control to the network

In a network encryption system, what does the Key Distribution Center (KDC) do after verifying the user's identity?

Reveals the user's secret encryption key

Creates session keys and securely transmits them (correct)

Sends biometric data for authentication

Shares all network data with the user

Which cryptographic system relies on the Key Distribution Center (KDC) for secure distribution of encryption keys?

MD5

Kerberos (correct)

RSA

AES

What is the primary purpose of the Kerberos protocol?

Provide strong authentication for client/server applications Signup and view all the answers

Why can't a user change their fingerprint or iris if biometric data is hacked?

Biometric data is unique and cannot be modified Signup and view all the answers

What role does the Key Distribution Center (KDC) play in preventing unauthorized access to transmitted data?

Authenticates users in the network Signup and view all the answers

How does the Key Distribution Center (KDC) enhance communication security in a network encryption system?

By securely distributing encryption keys Signup and view all the answers

What differentiates the Key Distribution Center (KDC) in a cryptographic system like Kerberos from a regular server?

KDC authenticates users and distributes keys securely Signup and view all the answers

What makes Kerberos a robust network authentication protocol?

Its provision of strong authentication for client/server applications. Signup and view all the answers

What makes biometric data such as fingerprints or iris patterns difficult for users to change in case of a security breach?

Unique nature of biometric data, making modifications impossible. Signup and view all the answers