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Security module
The security module improves security services for applications requiring a
browser connection, and allows you to use a digital signature. The security
module may contain certificates as well as private and public keys.
The certificates are saved in the security module by the service provider.
To view or change the security module settings, select Menu > Settings >
Security > Security module settings.
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.
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.