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.
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
your service provider.
To view the list of the authority or user certificates downloaded to 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.