Keep in mind that EAP types are often proposed and supported by different vendors. For example, LEAP is backed by Cisco, PEAP is backed by Microsoft, Cisco, and RSA, while TTLS is backed by Funk Software and Certicom. MD5 and TLS, however, are both widely supported. When choosing an EAP method, it is important to consider who is the vendor behind the technology (Table 6.1).
As we have often seen in other areas of computing, market factors often drive the acceptance of technology standards.
|Method||Typical Implementaion||Authentication Direction||WEP Key Generated?||Deployment Difficulty||Wireless Security|
|MD5||Challenge-based password||One-way authentication||No||Easy||Poor|
|TLS||Certificate-based two-way authentication ...|