1. A Wireless LAN Security Protocol
CTP/CURTIN/2011/GROUP 29

2. Group Members
DCN09C D.M.N.Dissanayake

3. Why WLAN Security? Intruders who try to attack the computers Rogue AP
Soft AP MAC spoofing
Denial of Service
The communication between server and client of a WLAN can be hacked by an intruder.

4. Security Requirments Confidentiality -Messages sent must be encrypted
Authentication
-Origin of message received must be verified
Integrity
-Integrity of messages received must be verified
Access Control
-Access for legitimate entities only

5. Available Protocols WPE (Wired Equivalent Privacy)
WPA (Wi-Fi Protected Access)
WPA2
TKIP (Temporal Key Integrity Protocol)

6. New Protocol Client generate a session key. User Inputs a key
Hashes are generated for both the keys.
The user-input key is encrypted with the time key and the time key is encrypted with a hard-coded key.

7. New Protocol cont…
Client sends the hashes and encrypted passwords to server through an access point
Server decrypts keys
Server generates hashes for the decrypted keys and compares them with the hashes
If all is good, further communication is done using same user key.

8. New Protocol cont… If there is a failure, the session is terminated.
The client sends “exit” command, and the session is terminated.

9. Block Diagram

10. Time Plan

11. Advantages of this protocol…
User may be able use a very interact with other computers more securely.

12. Thank You