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Wi fi security
- 1. IMPACTS OF WIFI SECURITY CASE STUDY OF SOCIAL NETWORKS Assit.Prof. Chirasil Chayawan Communication and Integrated Services Study Center KMUTT
- 2. Main Technologies in Wireless Proximity (Personal) area network  Ad-hoc network  Always connected in personal space WLAN Mobile communication: 3G or beyond WLAN and mobile communication  Interconnection  Decoupling from terminal and applications from the access methods
- 3. Integration of PAN, WLAN and Mobile communication  Extends users connectivity  Complementary and hierarchical manners  Ubiquitous wireless system
- 4. What is the weakest point in Wireless? Wireless magnifies exposure vulnerability  Mobile device is vulnerable to theft and lost.  Transmitted over the unprotected airwaves  Interoperability software: virus, hacking attacks
- 5. Wireless Vulnerability Information going across the wireless link is exposed to anyone within radio range The benefit of traditional wireline is the physical security
- 6. Mobile make it more…? Difficult to establish trust  Due to connection to physically hidden access point  Can service providers be trust in case of foreign networks?
- 7. System design issues Mobile constraints  Desire low power consumption  Minimize computation  Minimize network communication  By low processing capabilities  By limited link capacity What mobile need?  Cryptographic and other security algorithms to be simple  Minimize overhead for security protocol
- 8. Basic security for communication Privacy Authentication Integrity and non-Repudiation Availability and Access Control
- 9. Privacy Confidentially The intended recipients know what was being sent but unintended parties cannot determine what was sent. Required some encryption at the sender and required some decryption at the receiver
- 10. Authentication Confirms the identity of the other party in the communication Assures that  The claimed sender is the actual sender  The claimed receiver is the actual receiver
- 11. Integrity and Non-repudiation Data integrity  Data is transmitted from source to destination without undetected alteration Non- repudiation  Prove that a received message came from a claimed sender
- 12. Availability and Access Control Ensure availability of resources for the intended users Controls access to resource
- 13. Conclusions Integration of three main wireless approaches  PAN  WLAN  Mobile communication Security concepts  Privacy  Authentication  Integrity and Non-repudiation  Availability and Access control
- 14. How to stay safe on public WiFi Networks... Turn off all sharing Computer Network Settings: Enable the Firewall Security Browser Extensions Consider Using a Virtual Private Network Turn It Off When You're Not Using It Keep Updating the Softwares
- 15. How to stay safe on public WiFi Networks... The Risks of Social Networks
- 17. How to stay safe on public WiFi Networks... Social Networking Security Threats
- 20. Assit.Prof. Chirasil Chayawan Director Communication and Integrated Services Study Center (CISS) KMUTT chirasil.cha@kmutt.ac.th