Lexmark MX718 Embedded Web Server--Security: Administrator s Guide - Page 33
Updating firmware, Settings, Submit
View all Lexmark MX718 manuals
Add to My Manuals
Save this manual to your list of manuals |
Page 33 highlights
Managing devices remotely 33 Updating firmware Automated firmware updates can be done simultaneously over a network of devices. For security, the ability to perform this update can be restricted to authorized administrators by using access control. Devices inspect all downloaded firmware packages for a number of required attributes before adopting and executing the packages. The firmware must be packaged in a proprietary format and encrypted with a symmetric encryption algorithm through an embedded key that is known only to Lexmark. However, the strongest security measure comes from requiring all firmware packages to include multiple digital 2048-bit RSA signatures from Lexmark. If these signatures are not valid, or if the message logs indicate a change in firmware after the signatures were applied, then the firmware is discarded. 1 From the Embedded Web Server, click Settings > Update Firmware. 2 Browse to the flash file. 3 Click Submit.