802.11 Wireless Serial Solutions Technical Manual

3.5 Encryption

The WiSER2400 supports Wired Equivalent Privacy (WEP) security

for both 64-bit and 128-bit encryptions. The Encryption page contains

two sections:

3.5.1 Encryption

This section allows the user to choose from three encryption options: 64 bits,

128 bits or none (disabled). The WiSER2400 uses the

shared key scheme

when either 64 or 128-bit key is selected.

Once the type of encryption is selected, use the following section as a

guideline on setting up encryption:

3.5.2 WEP Keys Creation

This section allows the user to generate the WEP encryption keys.

Notes:

There are 24 pre-fixed bits in either 64 or 128-bit encryption key. For 64-bit

encryption, there are 10 hexadecimal characters (40-bits) that need to be

generated by the user

(example: 0A1B2C3D4E); for 128-bit encryption there

are 26 hexadecimal characters (104 bits) to be generated

(example:

12345678901234567890ABCDEF).

There are two ways to generate the encryption key. One is to use Pass

Phrase automatically generate the key. Or, the user can manually input the

keys in the Manual Entry fields.

For automatic key generation, select Pass phrase and enter an arbitrary

combination of continuous alphanumerical characters into the Pass phrase

field. The maximum length allowed for the character string is 64. Click the

Apply button to save the encryption key setting.

To manually generate the key, select Manual Entry and enter the hexadecimal

numbers to the fields for Key 1 to Key 4. Click the Apply button to save the

encryption key setting.

The remaining fields in the Encryption page are described below.

Deny Unencrypted Data Frames: if checked, the WiSER2400 will

block unencrypted data frames from being received.

Transmission key: For selecting a key from Key 1 to Key 4 for

transmission encryption. The default key is set to Key 1. The

WiSER2400 will receive wireless packets encrypted with any key

from Key 1 to Key 4.

WEP key factor: Allows the user to choose how many frames the

Initialize Vector (IV) is reused for. Four options are available:

Every frame, Every 10 frames, Every 50 frames and Every 100

frames. The default is Every 100 frames.

When the Apply button is clicked, the program validates all entered data and

prompts the user to re-enter the data if any of the entries are invalid. If all of

the data is valid, it will be applied to the radio unit.

Fig. 18 WiSER2400 administration software Encryption panel