a. Which of the following can be used for both encryption and digital signatures?3DESAESRSAMD5 b. Digital Signatures provide which of the following? ConfidentialityAuthorizationIntegrityAuthenticationAvailability c. The difference between a hash and a digital signature is: Hashes are used to verify message authenticity, digital signatures are used to verify message integrity.Hashes are used to verify message integrity and authenticity, digital signatures are used to verify message authenticity only.Hashes are used to verify the message integrity only, digital signatures are used to verify message authenticity and message integrity.There is no functional difference. d.Which asymmetric algorithm is used for establishing a shared key?A.Elliptic CurveB. PGPC. Diffie-HellmanD. RSAe.What is used to create a message digest that will be attached to data at rest or in transit?Asymmetric algorithmSymmetric algorithmEncryptionHashingNon-repudiation Authenticationf.Which is the most secure method of exchanging secret keys?A.TextB. EmailC. PhoneD. Diplomatic BagsE. Asymmetric Algorithm g.Which of these would be the PRIMARY reason we would choose to use hash functions? AuthorizationIntegrityConfidentialityAvailability

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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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a. Which of the following can be used for both encryption and digital signatures?

3DES
AES
RSA
MD5

b. Digital Signatures provide which of the following?

Confidentiality
Authorization
Integrity
Authentication
Availability

c. The difference between a hash and a digital signature is:

Hashes are used to verify message authenticity, digital signatures are used to verify message integrity.
Hashes are used to verify message integrity and authenticity, digital signatures are used to verify message authenticity only.
Hashes are used to verify the message integrity only, digital signatures are used to verify message authenticity and message integrity.
There is no functional difference.

d.Which asymmetric algorithm is used for establishing a shared key?

A.Elliptic Curve
B. PGP
C. Diffie-Hellman
D. RSA

e.What is used to create a message digest that will be attached to data at rest or in transit?

Asymmetric algorithm
Symmetric algorithm
Encryption
Hashing
Non-repudiation
Authentication

f.Which is the most secure method of exchanging secret keys?

A.Text
B. Email
C. Phone
D. Diplomatic Bags
E. Asymmetric Algorithm

g.Which of these would be the PRIMARY reason we would choose to use hash functions?

Authorization
Integrity
Confidentiality
Availability

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