3.1. Study the diagram below showing the steps for Bob to send a digitally signed message to Alice and then answer the questions that follow: 6 / 8168%+ |HashStep 1EncryptionalgorithmStep 2PlaintextalgorithmConfidential MemoHashConfidential MemoLayoffs at the Lakeviewstore will begin...Layoffs at the Lakeviewstore will begin...3&6%43@we DigitalQ[9}[0x872... signature93827653Bob (sender)Bob's private keyStep 3Transmitted toremote userHashEncryptionalgorithmAlice (receiver)algorithmHashConfidential MemoConfidential MemoLayoffs at the Lakeviewstore will begin...Layoffs at the Lakeviewstore will begin...938276533&6%43@we DigitalQ[9}[Ox872... signatureHash93827653Step 4Bob's public keyHashes matchStep 5 You have verified that the correct keys have been used either encrypting and/ordecrypting the digital signatures as well as the correct has algorithm is used to hashthe memo.Che Independent Institute of Education (Pty) Ltd 2021Page19; 20; 21Explain the implications of the following scenarios:Q.3.1.2If Alice could not decrypt the digital signature.Q.3.1.3If, after Alice hashing the memo, the hashes are not equal.63%21°C Mostly cloudy国Delete*-F5F12InsertPriscF6F7F8F9F10F11&Backspace56.78.T Y

Answered: Image /qna-images/answer/ddf32ec0-f4eb-4b0d-8c6f-b0b16e09f604.jpg

Answered: 3.1. Study the diagram below showing…

3.1. Study the diagram below showing the steps for Bob to send a digitally signed message to Alice and then answer the questions that follow:

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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Question

3.1. Study the diagram below showing the steps for Bob to send a digitally signed message to Alice and then answer the questions that follow:

6 / 8
168%
+ |
Hash
Step 1
Encryption
algorithm
Step 2
Plaintext
algorithm
Confidential Memo
Hash
Confidential Memo
Layoffs at the Lakeview
store will begin...
Layoffs at the Lakeview
store will begin...
3&6%43@we Digital
Q[9}[0x872... signature
93827653
Bob (sender)
Bob's private key
Step 3
Transmitted to
remote user
Hash
Encryption
algorithm
Alice (receiver)
algorithm
Hash
Confidential Memo
Confidential Memo
Layoffs at the Lakeview
store will begin...
Layoffs at the Lakeview
store will begin...
93827653
3&6%43@we Digital
Q[9}[Ox872... signature
Hash
93827653
Step 4
Bob's public key
Hashes match
Step 5

You have verified that the correct keys have been used either encrypting and/or
decrypting the digital signatures as well as the correct has algorithm is used to hash
the memo.
Che Independent Institute of Education (Pty) Ltd 2021
Page
19; 20; 21
Explain the implications of the following scenarios:
Q.3.1.2
If Alice could not decrypt the digital signature.
Q.3.1.3
If, after Alice hashing the memo, the hashes are not equal.
63%
21°C Mostly cloudy
国
Delete
*-
F5
F12
Insert
Prisc
F6
F7
F8
F9
F10
F11
&
Backspace
5
6.
7
8.
T Y

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