Nokia 9290 - Manual (Page 252)

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Extras
Note however, that even if the use of certificates makes the risks involved in remote
connections and software installation considerably smaller, they must be used
correctly in order to benefit from increased security. The existence of a certificate
does not offer any protection by itself; Certificate manager must contain correct,
authentic, and trusted certificates for increased security to be available.
To open the main view of Certificate manager, press the Extras application button,
select Control panel, and select Certificate manager.
The main view lists the currently available certificates and their validity information.
Note: Certificates have a restricted lifetime. If a certificate is marked Expired
even if it should be Valid, check that the date and time in your communicator
are correct.
Define the usage of the certificate
1 Select the certificate and press View details. A dialog with certificate
details opens.
2 Press Trust settings. A dialog opens.
3 If you want this certificate to be able to certify WWW sites and mail servers,
select Web browser and Mail, press Change, and select Yes.
4 If you want this certificate to be able to certify the origin of a new software,
select Software installation, press Change, and select Yes.
Note: Before changing these settings, you must make sure that you really trust
the owner of the certificate and that the certificate really belongs to the
listed owner.