WLANs WPANs

Security Policies

2007-07-20T00:00:00+03:00

Security Policies One of the first steps in providing wireless network security is to formulate effective policies and corresponding enforcement processes. Carefully analyze security requirements and invoke an adequate level of protection. For example, encryption should be part of all wireless network implementations. WEP might be fine for home and small ...

Authentication

2007-07-20T00:00:00+03:00

Authentication The use of mutual authentication is important in a wireless network. This will guard against many security issues, such as man-in-the-middle attacks. With mutual authentication, the wireless client and the wireless network must prove their identity to each other. This process uses an authentication server, such as Remote Authentication Dial-In ...

Encryption

2007-07-20T00:00:00+03:00

Encryption Encryption alters the bits of each data packet to guard eavesdroppers from decoding data, such as credit card numbers. Before encryption the data is called plaintext, which is easy to decode by using sniffing tools. The encryption converts the plaintext into ciphertext, which someone can decode only through ...

Security Threats

2007-07-20T00:00:00+03:00

Security Threats As show in Figure 8-1, there are several forms of security threats to wireless networks. For example, hackers can steal information from a company, obtain unauthorized access to applications, and even disrupt operation of the network.

Wireless WAN Technologies

2007-07-20T00:00:00+03:00

Wireless WAN Technologies Wireless WANs make use of technologies that focus on modulation of voice and data. As discussed in Chapter 2, "Wireless System Architecture: How Wireless Works," modulation converts digital signals that represent information inside a computer into either RF or light signals. Wireless WANs exclusively use RF ...