Suggested Answer: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).
D. Time stamps
Time stamps are used to protect Kerberos against replay attacks. In the Kerberos authentication protocol, time stamps are included in the tickets to ensure that a ticket is only valid for a specific period of time. This prevents an attacker from intercepting a Kerberos ticket and replaying it at a later time because the time stamp will have expired, rendering the ticket invalid. Time-based validity checks are a crucial part of the security mechanisms in Kerberos authentication.
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