EBK COMPUTER NETWORKING
EBK COMPUTER NETWORKING
7th Edition
ISBN: 8220102955479
Author: Ross
Publisher: PEARSON
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Chapter 8, Problem R16RQ
Program Plan Intro

Replay Attack:

A type of network attack in which an attacker detects a data transmission and fraudulently has it delayed or repeated is known as replay attack.

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Design a security protocol that will allow a Mutually Agreed Session key (Kabc) to be established between three entities A, B and C. This key can then be used to secure a chat between the three entities. I want you to develop your own design based on the conditions below.Note: The session key should NOT be known to the Chat Server (S) and the Chat Server (S) can only forward the encrypted messages to A, B and C and S cannot read the messages. The secure chat between entities A, B and C must use the Chat Server (S) and session key Kabc as below: (refer image)i.e. A, B and C Do NOT communicate directly. The following conditions apply to your protocol design.1. A, B and C Never communicate directly. 2. Each entity (A, B, C and S) have a Public Key Certificate, ie. CA<<A>>, CA<<B>>, CA<<C>> and CA<<S>>. 3. The Chat Server, S, has access to all Entity Certificates that use its service and can provide these Certificate to its service users if…
Design a key establishment protocol that will allow a Mutually Agreed Session key (Kabc) to be established between three entities A, B and C. This key can then be used to secure a chat between the three entities. I want you to develop your own design based on the conditions below. Note: The session key should NOT be known to the Chat Server (S) and the Chat Server (S) can only forward the encrypted messages to A, B and C and S cannot read the messages,i.e. End to end encryption/privacy is to be used between the chat parties A, B and C. The secure chat between entities A, B and C must use the Chat Server (S) and session key Kabc as below: i.e. A, B and C Do NOT communicate directly and must exchange messages through the Server S. The following conditions apply to your protocol design. 1. A, B and C Never communicate directly. Each entity (A, B, C and S) have a Public Key Certificate, ie. CA<<A>>, CA<<B>>, CA<<C>> and CA<<S>>.…
Explain the significance of a cipher suite in SSL/TLS protocols.
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