There are various wireless security standards available e.g, WEP, WPA and WPA2.
WEP uses RC4 encryption algorithm for the data security. However, WEP is not recommended to use because it is easily breakable due to the use of small size of initial vector (IV).
The replacement of WEP is WPA. It uses temporal key integrity protocol (TKIP) with RC4.
The most secure solution is WPA2. It uses the AES encryption algorithm in CCMP (Counter mode with Cipher Block Chaining Message Authentication Code) mode.
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