Learning Wi-Fi
Wi-Fi Useful Resources
Selected Reading
- Wi-Fi - Summary
- Wi-Fi - Major Issues
- Wi-Fi - Radio Modulation
- Wi-Fi - Network Services
- Wi-Fi - Security
- Wi-Fi - Quality of Service
- Wi-Fi - Access Protocols
- Wi-Fi - IEEE Standards
- Wi-Fi - Working Concepts
- What is Wi-Fi ?
- Wi-Fi - Home
Wi-Fi Useful Resources
Selected Reading
- Who is Who
- Computer Glossary
- HR Interview Questions
- Effective Resume Writing
- Questions and Answers
- UPSC IAS Exams Notes
Wi-Fi - Security
Wi-Fi - Security
Security has been one of the major deficiencies in WiFi, though better encryption systems are now becoming available. Encryption is optional in WiFi, and three different techniques have been defined. These techniques are given here −
Wired Equivalent Privacy (WEP)
An RC4-based 40-or 104-bit encryption with a static key.
WiFi Protected Access (WPA)
This is a new standard from the WiFi Alpance that uses the 40 or 104-bit WEP key, but it changes the key on each packet. That changing key functionapty is called the Temporal Key Integrity Protocol (TKIP).
IEEE 802.11i/WPA2
The IEEE is finapzed the 802.11i standard, which is based on a far more robust encryption technique called the Advanced Encryption Standard. The WiFi Alpance designate products that comply with the 802.11i standard as WPA2.
However, implementing 802.11i requires a hardware upgrade.
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