CONTROLLER
SM 6-49 G108
Detailed
Descriptions
6.11.5 NETWORK DATA PROTECTION UNIT
NDPU and DES
When a networked computer sends a print job to the printer, the information and
data go on the network. The network data protection unit (NDPU) encrypts such
information and data.
The NDPU is based on the Data Encryption Standard (DES), a specification for
encryption of computer data developed by IBM and adopted by the U.S.
government as a standard in 1976. DES uses a 56-bit encryption key.
The NDPU allows for the creation and exchange of an internal CA certificate (via
SSL) or the use of a third-party CA certificate. Secured printing via SSL can only be
utilized when printing via IPP. SmartDeviceMonitor is the recommended utility to
use when printing IPP.
Supported Network Interface
The NDPU supports these network interfaces: Ethernet, IEEE 1394, and IEEE
802.11b.
G108D955.WMF
Encrypted data
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