CISSP-ISSAP: Information Systems Security Architecture Professional

Question

Adam is a Network Administrator. He finds that a wireless AP sends 128 bytes of plaintext and the station replies by encrypting that plaintext. The station then sends the resulting ciphertext using the same key and cipher that WEP uses to encrypt later network traffic. Which type of authentication mechanism is being used?

Explanation

WEP shared-key authentication is a challenge-response method in which the access point sends plaintext challenge text and the station encrypts it with the shared WEP key before returning it for validation.

CISSP-ISSAP: Information Systems Security Architecture Professional

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