Psion Teklogix 7530 G2 user manual Authentication

Chapter 2: Basic Checkout

Configuring An IEEE 802.11 Radio In The Unit

Note: WEP cannot be disabled if you are using WPA or WPA-PSK authentication.

TKIP (Temporal Key Integrity Protocol) is an encryption protocol included as part of the IEEE 802.11 standard for wireless LANs. Designed to enhance WEP, TKIP uses the original WEP encryption but ‘wraps’ addi- tional code at the beginning and end to encapsulate and modify it, encrypt- ing each data packet with a unique encryption key.

Authentication

802.11supports four subtypes of network authentication services: Open, Shared, WPA, and WPA-PSK. Under Open authentication, any wireless station can request authentication. The station that needs to authenticate with another wireless station sends an authentication management frame that contains the identity of the sending station. The receiving station then sends back a frame that indicates whether it recognizes the identity of the sending station.

Under Shared authentication, each wireless station is assumed to have received a secret shared key over a secure channel that is independent from the 802.11 wireless network communications channel.

Under WPA and WPA-PSKauthentication, the use of 802.1x authentication is required. For wireless networks without a Remote Authentication Dial-In User Service (RADIUS) infrastructure, WPA supports the use of a pre- shared key. For wireless networks with a RADIUS infrastructure, Extensi- ble Authentication Protocol (EAP) and RADIUS is supported.

Network Key:

This text box is used to specify a 5 or 13 ASCII character sequence or an equivalent 10 or 26 Hexadecimal digit sequence that matches the active WEP key on the access point.

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