Systems Security Certified Practitioner – SSCP – Question0737

Which of the following protects Kerberos against replay attacks?

A.
Tokens
B. Passwords
C. Cryptography
D. Time stamps

Correct Answer: D

Explanation:

A replay attack refers to the recording and retransmission of packets on the network. Kerberos uses time stamps, which protect against this type of attack.
Source: HARRIS, Shon, All-In-One CISSP Certification Exam Guide, McGraw-Hill/Osborne, 2002, chapter 8: Cryptography (page 581).