Toshiba Pockey PC e800 User Manual page 124

Example: Obtaining a PEAP certificate from a file (2)
Select a certificate from the file list. The certificate file should be provided
from your network administrator. If you don't have a certificate file, please
contact to your network administrator.
The Toshiba Certificate Import Wizard supports only DER-encoded root
certificates. If you try to import another certificate file format, the Import
Wizard will alert you.
Example: Obtaining a certificate from a file (3)
User's Manual
Wi-Fi Wireless LAN
8-23