Auditing Wi-Fi Protected Access (WPA) Pre-Shared Key Mode

Understand the risks of two wireless security technologies by experimenting with cracking tools.
Conclusion

This article examined some of the vulnerabilities within WEP and WPA and provides the tools and method for auditing WPA pre-shared key mode passphrases. To do this, we examined the framework and flaws in WEP and reviewed the risks associated with using WPA-PSK passphrases of less than 20 characters. It has been demonstrated that although the method to crack the WPA-PSK is not trivial, it also is not beyond the reach of an average Linux user. Home users can lessen their security risks by using a passphrase significantly greater than 20 characters or, alternatively, by using WPA-Enterprise and incorporating an authentication server. Corporate users should implement an authentication server, use per-user keying and refrain from implementing WPA in PSK mode.

Resources for this article: /article/8405.

John L. MacMichael (CISSP, GSEC, CWNA) is a Naval Officer and Information Professional who works in the field of Information Assurance. He considers himself a journeyman Linux user and utilizes a variety of distributions both at work and home, including Slackware, Debian, Red Hat and several live distros; he has yet to find his favorite. He invites your comments at johnny@757.org.

______________________

White Paper
Linux Management with Red Hat Satellite: Measuring Business Impact and ROI

Linux has become a key foundation for supporting today's rapidly growing IT environments. Linux is being used to deploy business applications and databases, trading on its reputation as a low-cost operating environment. For many IT organizations, Linux is a mainstay for deploying Web servers and has evolved from handling basic file, print, and utility workloads to running mission-critical applications and databases, physically, virtually, and in the cloud. As Linux grows in importance in terms of value to the business, managing Linux environments to high standards of service quality — availability, security, and performance — becomes an essential requirement for business success.

Learn More

Sponsored by Red Hat

White Paper
Private PaaS for the Agile Enterprise

If you already use virtualized infrastructure, you are well on your way to leveraging the power of the cloud. Virtualization offers the promise of limitless resources, but how do you manage that scalability when your DevOps team doesn’t scale? In today’s hypercompetitive markets, fast results can make a difference between leading the pack vs. obsolescence. Organizations need more benefits from cloud computing than just raw resources. They need agility, flexibility, convenience, ROI, and control.

Stackato private Platform-as-a-Service technology from ActiveState extends your private cloud infrastructure by creating a private PaaS to provide on-demand availability, flexibility, control, and ultimately, faster time-to-market for your enterprise.

Learn More

Sponsored by ActiveState