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ENWW HP Jetdirect 802.11b Wireless Print Servers 260

Certificates

Digital certificates are used to validate the identity of network

clients and servers and allow encrypted communications. A digital

certificate is an electronic message typically containing, among

other things, a key (a short string used for encryption and

decryption) and a digital signature. Certificates may be issued and

signed by a trusted third party (commonly called a Certificate

Authority, or CA), which may exist internal or external to the

organization. Or certificates may be “self-signed”, which is similar

to validating your own identity.

To support EAP/PSK and selected EAP/802.1x authentication

methods, an HP Jetdirect print server may need to contain one or

both of the following certificates:

● CA Certificate. A certificate from a trusted Certificate

Authority (CA) is used to validate certificate information

received from an authentication server. The CA must be the

same as that used for the authentication server.

● Jetdirect Certificate. A certificate that validates the Jetdirect

device to the authentication server must be installed. The

Jetdirect certificate may be issued by a trusted Certificate

Authority, or may be self-signed, depending on the

requirements established by the administrator of the

authentication server.

Encryption

HP Jetdirect 802.11b wireless print servers support both static and

dynamic encryption protocols.

Static WEP. The IEEE 802.11b standard includes a WEP (Wired

Equivalent Privacy) protocol for security. Using a secret key, a WEP

algorithm provides data encryption immediately before wireless

transmissions, and data decryption when received. While absolute

security cannot be guaranteed, WEP security is considered the first

significant line of defense against casual eavesdroppers.

For WEP security, the WEP protocols must be implemented on each

wireless device on your network. HP Jetdirect wireless print servers

support WEP protocols.

WEP security uses a secret key for authentication or data

encryption on both the sending and receiving device. If a secret WEP

key (analogous to a password value) is used for authentication, it

HP C8088B Administrator's Guide

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