D-Link Air DWL-520 Manual page 13

Encryption Tab (continued)
Enabling Encryption
To enable encryption, click the down arrow at the right of the Encryption field,
select either 64 bit or 128 bit, and click the Apply button. After enabling an
encryption method, you must then specify encryption keys, as described in
the following sections.
Creating Encryption Keys Using a Passphrase
To create encryption keys using a Passphrase, click the radio button next to
Create Key with Passphrase and type a character string in the Passphrase
field. As you type, the Configuration Utility uses an algorithm to generate
four keys used for encryption.
When you finish typing your character string and click the Apply button, the
Configuration Utility uses asterisks to mask both your Passphrase and the
keys it generates.
Using a Passphrase to generate the four keys makes it easy to set the same
keys for all members of your wireless LAN.
Creating Encryption Keys Manually
If you wish, you can create encryption keys manually by selecting the
Encryption tab. Click on the button next to Manual Entry.
When you click this button, the cursor appears in the field for Key 1. For 64-
bit encryption, you must type exactly 10 hexadecimal digits in each of the
four key fields; for 128-bit encryption, you must type exactly 26 hexadecimal
digits. You then click the Apply button to create your encryption keys. After
you click the Apply button, the Configuration Utility uses asterisks to mask
your keys.