HP Deskjet 6840 Color Inkjet Printer - Manual (Page 30)

Encryption type Description Benefits Limitations
AES
Advanced
Encryption Standard
(AES) is a U.S.
government
sponsored
encryption method
that uses a complex
algorithm called
“Rijndael.”
AES uses
encryption keys to
encode data. AES
automatically
changes the
encryption keys
after a certain time
interval, thus making
the wireless network
less vulnerable to
eavesdropping.
Since the
encryption key
changes
automatically, the
data is more difficult
for eavesdroppers
to decode.
All devices must
have the key.
TKIP
Temporal Key
Integrity Protocol
(TKIP) uses
encryption keys to
encode data. TKIP
automatically
changes the
encryption keys
after a certain time
interval, thus making
the wireless network
less vulnerable to
eavesdropping.
Since the
encryption key
changes
automatically, the
data is more difficult
for eavesdroppers
to decode.
All devices must
have the key.
5.3.7 Wi-Fi Protected Access (WPA)
Wi-Fi Protected Access (WPA) provides security by doing the following:
• Encrypting data sent over radio waves from one wireless device to another
wireless device
• Controlling access to network resources through authentication protocols
Only devices that share the same WPA settings as the printer will be able to
communicate with the printer.
HP Deskjet 6800 series printer User's Guide
30