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1. a high-level overview of how the protocol would work (e.g. the mobile phone might provide a PIN to the user as opposed to just "clicking" on a button directly on the phone) 2. the description of the protocol using the formal notation

1. a high-level overview of how the protocol would work (e.g. the mobile phone might provide a PIN to the user as opposed to just "clicking" on a button directly on the phone) 2. the description of the protocol using the formal notation

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Exercise 2 ( In module 4 we discussed many examples of security protocols using formal notation. For instance, we studied how a dual-factor authentication works when a password generator is used: S → U : N U → P : N, PIN P → U : {N,PIN}K U → S: {N,PIN}K Can you modify the set of rules outlined above to describe the protocol of dual-factor authentication when a mobile device is involved? To receive full credit, please submit 1. a high-level overview of how the protocol would work (e.g. the mobile phone might provide a PIN to the user as opposed to just "clicking" on a button directly on the phone) 2. the description of the protocol using the formal notation
Transcribed Image Text:Exercise 2 ( In module 4 we discussed many examples of security protocols using formal notation. For instance, we studied how a dual-factor authentication works when a password generator is used: S → U : N U → P : N, PIN P → U : {N,PIN}K U → S: {N,PIN}K Can you modify the set of rules outlined above to describe the protocol of dual-factor authentication when a mobile device is involved? To receive full credit, please submit 1. a high-level overview of how the protocol would work (e.g. the mobile phone might provide a PIN to the user as opposed to just "clicking" on a button directly on the phone) 2. the description of the protocol using the formal notation
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