Symbol Technologies AP-5131 - Manual (Page 225)

Configuring Access Point Security 6-39
3. Configure the Manual Key Settings screen to modify the following:
NOTE When entering Inbound or Outbound encryption or authentication keys, an
error message could display stating the keys provided are “weak”. Some
WEP attack tools invoke a dictionary to hack WEP keys based on
commonly used words. To avoid entering a weak key, try to not to produce
a WEP key using commonly used terms and attempt to mix alphabetic and
numerical key attributes when possible.
AH Authentication AH provides data authentication and anti-replay services for the
VPN tunnel. Select the required authentication method from the
drop-down menu:
• None - Disables AH authentication. The rest of the fields are
not active.
• MD5 - Enables the Message Digest 5 algorithm requiring
128-bit (32-character hexadecimal) keys.
• SHA1 - Enables Secure Hash Algorithm 1, requiring 160-bit
(40-character hexadecimal) keys.