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Difficulty: MediumWireless Security Standards and Encryption Protocols

Match each wireless security standard to its corresponding cryptographic cipher and integrity mechanism.

  • WEP (Wired Equivalent Privacy)Uses RC4 stream cipher with a 24-bit Initialization Vector (IV) and CRC-32 for integrity checking.
  • WPA (Wi-Fi Protected Access)Uses Temporal Key Integrity Protocol (TKIP) with the Michael algorithm for message integrity.
  • WPA2 (Wi-Fi Protected Access 2)Mandates AES encryption using Counter Mode Cipher Block Chaining Message Authentication Code Protocol (CCMP).
  • WPA3 (Wi-Fi Protected Access 3)Uses Simultaneous Authentication of Equals (SAE) for key exchange and Galois/Counter Mode Protocol (GCMP-256) encryption.

Answer

WEP corresponds to RC4 stream cipher with 24-bit IV and CRC-32. WPA corresponds to TKIP with the Michael algorithm. WPA2 corresponds to AES with CCMP. WPA3 corresponds to SAE key exchange with AES-GCMP encryption.
Each wireless security standard aligns with a specific generation of encryption ciphers and integrity mechanisms: WEP uses basic RC4 with a 24-bit IV, WPA introduced TKIP with the Michael MIC, WPA2 mandated AES-CCMP, and WPA3 upgraded authentication to SAE with modern AES-GCMP ciphers.

Step-by-Step Solution

1
Identify legacy and deprecated legacy standards (WEP and WPA)
WEP uses RC4 with a 24-bit IV and CRC-32. WPA upgrades this by introducing TKIP and the Michael algorithm.
WEP was vulnerable due to small static keying flaws, leading WPA to implement per-packet keying via TKIP while retaining hardware compatibility.
2
Identify modern standards (WPA2 and WPA3)
WPA2 standardizes AES-CCMP encryption. WPA3 advances authentication with SAE and utilizes AES-GCMP.
WPA2 required dedicated hardware upgrades for AES-CCMP processing, while WPA3 enforces protected management frames, SAE, and stronger GCMP ciphers.

Key Concept

Evolution of Wireless Encryption Protocols and Integrity Controls
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Topics

Wireless Security Standards and Encryption Protocols

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