6 Points Wep Was The First Security Protocol To Be Used For Wifi Wep Assted That All Devices In The Network Share A Sec 1 (20 KiB) Viewed 41 times
6 Points Wep Was The First Security Protocol To Be Used For Wifi Wep Assted That All Devices In The Network Share A Sec 2 (32.83 KiB) Viewed 41 times
6 points WEP was the first security protocol to be used for WiFi. WEP assted that all devices in the network share a secret key. The purpose of the authentication scenario is for the STA (wireless station to prove that it holds the secret key. Autheatication proceeds as shown in the below figure. The STA sends a message to the AP requesting authentication. The AP issues a challenge, which is a sequence of 128 random bytes sent as plaintext. The STA cncrypts the challenge with the shared key and returns it to the AP The AP decrypts the incoming value and compares it to the challenge that it sent. If there is a match. the AP confirms that autheutication has succeeded. What are the benefits of this authentication scheme? 1. This authentication scheme is not complete. What is missing and why is this important? c. What is a cryptographic weakness of this scheme?
STA AP Station sends a request for authentication. Request Challenge AP sends challenge message containing 128-bit random number. Response Station responds with encrypted version of challenge number. Success AP decrypts challenge response. If match, send authentication success message.
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