Certificates
Important: 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; the certificate manager must contain correct, authentic, or
trusted certificates for increased security to be available. Certificates have a restricted lifetime. If Expired
certificate or Certificate not valid yet is shown even if the certificate should be valid, check that the current date
and time in your device are correct.
Before changing any certificate settings, you must make sure that you really trust the owner of the certificate and
that the certificate really belongs to the listed owner.
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There are three kinds of certificates: server certificates, authority certificates, and user certificates. You may
receive these certificates from your service provider. Authority certificates and user certificates may also be
saved in the security module by the service provider.
To view the list of the authority or user certificates downloaded into your phone, select
Menu
>
Settings
>
Security
>
Authority certificates
or
User certificates
.
is displayed during a connection, if the data transmission between the phone and the content server is
encrypted.
The security icon does not indicate that the data transmission between the gateway and the content server (or place where
the requested resource is stored) is secure. The service provider secures the data transmission between the gateway and the
content server.