Intermec 700 User Manual

Page 396

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Configurable Settings

Appendix

A

372

700 Series Color Mobile Computer User’s Manual

S TKIP (Temporal Key Integrity Protocol)

This protocol is part of the IEEE 802.11i encryption standard for wire-
less LANs., which provides per-packet key mixing, a message integrity
check and a re-keying mechanism, thus overcoming most of the weak
points of WEP. This encryption is more difficult to crack than the stan-
dard WEP. Weak points of WEP include:

S No Installation Vector (IV) reuse protection

S Weak keys

S No protection against message replay

S No detection of message tampering

S No key updates

S WEP (Wired Equivalent Privacy) encryption

With preconfigured WEP, both the client 700 Color Computer and
access point are assigned the same key, which can encrypt all data be-
tween the two devices. WEP keys also authenticate the 700 Color Com-
puter to the access point — unless the 700 Color Computer can prove
it knows the WEP key, it is not allowed onto the network.

WEP keys are only needed if they are expected by your clients. There
are two types available: 64-bit (5-character strings, 12345) (default) and
128-bit (13-character strings, 1234567890123). Enter these as either
ASCII (12345) or Hex (0x3132333435).

S WPA (Wi-Fi Protected Access)

This is an enhanced version of WEP that does not rely on a static,
shared key. It encompasses a number of security enhancements over
WEP, including improved data encryption via TKIP and 802.11b or
802.11b/g authentication with EAP.

WiFi Alliance security standard is designed to work with existing
802.11 products and to offer forward compatibility with 802.11i.

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