6. Consider the failed attempt of Alice to get Bob’s public key as shown in the following figure. Suppose that Bob and Alice already share a secret key, but Alice still wants Bob's public key. Is there now a way to get it securely? If so, how? 1. GET Bob's home page 2. Fake home page with ET Alice Trudy Bob 3. ET(Message) 4. Eg(Message) Trudy replaces Eg with ET and acts as a “man in the middle"

6. Consider the failed attempt of Alice to get Bob’s public key as shown in the following figure. Suppose that Bob and Alice already share a secret key, but Alice still wants Bob's public key. Is there now a way to get it securely? If so, how? 1. GET Bob's home page 2. Fake home page with ET Alice Trudy Bob 3. ET(Message) 4. Eg(Message) Trudy replaces Eg with ET and acts as a “man in the middle"

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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