How to import a root certificate on a
My ISP offers an SSL encrypted connection to it's SMTP server but
the signing authority of the SSL certificate was not recogized by my
Nokia 9300i and it was a bit of a hassle to import the root certificate
manually on the device.
You'll need a DER format file, DER format files
are generally offered with a .crt or .der
extention. If you can only get a PEM file (.pem extention) this needs
to be converted. On a Unix/Linux machine with OpenSSL installed this
can be done with a command like:
openssl x509 -outform der -in MYCERT.pem -out MYCERT.der
- Download the root certificate in DER (binary) format to your
Nokia 9300i so that it's available as a file.
- Open the Control panel
(in the Tools folder) on the
- Select the Security
category and then the Certificate
- The Certificate manager
has the following tabs: User,
Other & Password. Select Other.
- Click on the button to the right of the text Add.
- Select the file mentioned at step 1 directly if it's available in
the current folder or click on the button to the right of the text Browse and then make your way to
- If you select the certificate file, you'll get to see the details of the
certificate and you have the option to Add it or Cancel.
- Select the certificate in the list under the Other tab and press on the enter
button or the button to the right of the View details text.
- Press the button to the right of the Trust settings text.
- You can configure the Trust
settings for 4 options. The Secure
networking option should be set to YES.
- Press the button to the right of the Done text and close the screens of
the Control panel.