16 Apr What does it mean to be “out of band”? Why is it important to exchange keys out of band in symmetric encryption?
What does it mean to be “out of band”? Why is it important to exchange keys out of
band in symmetric encryption?
7. What is the fundamental difference between symmetric and asymmetric encryption?
8. How does public key infrastructure add value to an organization seeking to use cryptography to protect information assets?
9. What are the components of PKI?
10. What is the difference between a digital signature and a digital certificate?
11. What critical issue in symmetric and asymmetric encryption is resolved by using a
hybrid method like Diffie-Hellman?
12. What is steganography, and what can it be used for?
13. Which security protocols are predominantly used in Web-based e-commerce?
14. Which security protocols are used to protect e-mail?
15. IPSec can be implemented using two modes of operation. What are they?
16. Which kind of attack on cryptosystems involves using a collection of pre-identified
terms? Which kind of attack involves sequential guessing of all possible key
combinations?
17. If you were setting up an encryption-based network, what key size would you choose
and why?
18. What is the typical key size of a strong encryption system used on the Web today?
19. What encryption standard is currently recommended by NIST?
20. What are the most popular encryption systems used over the Web?
