Module 17: Public Key Cryptography

Question 1

What are the characteristics of Digital Signatures

Answer 1

Authentic
Unalterable
Not Reusable
No Repudiated

Question 2

What are 3 Digital Signature Algorithms

Answer 2

DSA - Digital Signature Algorithm
RSA - Rivest Shamir Adelman Algorithm
ECDSA Elliptic Curve

Question 3

Example of certificate authorities

Answer 3

Go Daddy

Global Sign

Question 4

What are certificate classes?

Answer 4

Determine how trusted the cert is

Question 5

What does a Root CA do?

Answer 5

Issues the certificates to end users

Question 6

What is Code Signing with DA’s

Answer 6

Used to verify the integrity of executable files

Question 7

What is X.509

Answer 7

a well known standard that provides:
Basic PKI formats such as:
Digital Certificates
Certificate Revocation Lists (CRL)

Question 8

What is a Certificate Revocation List (CRL)

Answer 8

a list of digital certificates that have been revoked by the issuing certificate authority (CA) before their scheduled expiration date and should no longer be trusted