Based on our discussion of the IKE protocol of IPSec, consider the following threats to VPNs and provide reasoning how a particular feature of IPSec counters each threat. (Short paragraph, about 50-100 words, for each) a. Brute-Force Attack: An exhaustive search of the key space for a conventional encryption algorithm. b. Replay Attack: Earlier IPSec messages are replayed. c. Man-in-the-middle attack: An attacker interposes during key exchange, acting as the client to the server and as the server to the client. d. IP Spoofing: Uses forged IP addresses to fool a host into accepting bogus data. e. SYN Flooding: An attacker sends TCP SYN messages to open half TCP connections.
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Brute-Force Attack: IPSec counters this threat by using strong encryption algorithms and key lengths. It uses algorithms like AES (Advanced Encryption Standard) with key lengths of 128, 192, or 256 bits. These key lengths make it computationally infeasible to Show more…
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