CB3000 Client Bridge User Guide
3-10
• WEP Encryption – Select a WEP encryption model:
• 64-bits – Encrypts using a 40-bit key. The keys are 10 hexadecimal characters in length.
• 128 bits – More secure. Encrypts using a 104-bit key. The keys are 26 hexadecimal characters
in length.
• Passphrase Algorithm – Select the passphrase algorithm used for encrypting the passphrase.
• Symbol PassKey – Symbol proprietary algorithm the CB3000 can share with other Symbol
clients capable of decoding it. The CB3000 decodes the PassKey into a set of 4 WEP keys using
MD5 algorithms. The WEP keys display as alphanumeric text in the key fields until saved or the
user navigates away from the WEP screen. Like a passphrase, the PassKey provides an easy to
remember way of entering WEP key data without having to manually enter the keys each time
WEP keys area created.
• Generic PassPhrase – A passphrase used as a standard means of creating WEP keys
between the Symbol CB3000 and non-Symbol clients. The CB3000 decodes the passphrase
into a set of 4 WEP keys, with the length depending on the 64 or 128 bit key length. The WEP
keys display as alphanumeric text in the key fields until saved or the user navigates away from
the WEP screen. The PassKey provides an easy to remember way of entering WEP key data
without having to manually enter the keys each time WEP keys area created.
Note Both the CB3000 and its networked device are required to use the same key
and key length to interoperate.
• Passphrase – Specify a 4 to 32 character passphrase, then click the Generate Keys button.
The CB3000, other proprietary routers and Symbol devices use an algorithm to convert the ASCII
passphrase string to the same hexadecimal number. This conversion is not required for a wireless
connection. Wireless devices without Symbol adapters need to use WEP keys manually configured
as hexadecimal numbers.
4. Click Apply to apply and save the settings, or Cancel to exit the screen without saving your changes.
3.1.3.3 Configuring WPA1 (TKIP) Security Settings
WPA, referred to as WPA1 within the CB3000 console, provides more sophisticated data encryption than WEP.
The CB3000’s WPA encryption scheme uses Temporal Key Integrity Protocol (TKIP). TKIP addresses WEP’s
weaknesses with a re-keying mechanism, a per-packet mixing function, a message integrity check, and an
extended initialization vector with sequencing rules.
Also, WPA provides strong user authentication based on 802.1x EAP. The CB3000 supports three EAP types
suitable for deployments with wireless LANs. They are:
• TLS – Transport Layer Security
• TTLS – Tunneled Transport Layer Security
• PEAP – Protected EAP
For overview information on WPA1, see About WPA1 (TKIP) Security.
For more details on encryption types, pros and cons of different encryption types and required configuration
parameters, see the Wi-Fi Alliance Web site at: http://www.wifialliance.org/OpenSection/index.asp.
To configure WPA1 (TKIP) security settings:
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