D-Link DSL-2790U User Manual page 86

Section 4 - Configuration
The certificate request needs to be submitted to a certification authority to sign the request.
Once you have a signed request click Load Signed Certificate to bring up the Load
Certificate page.
Paste the signed certificate into the Certificate field.
To create the new signed certificate, click Apply.
D-Link DSL-2790U Wireless N300 ADSL2+ Modem Router User Manual
LOCAL CERTIFICATES
LOAD CERTIFICATE
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