Security Module - Nokia 5300 User Manual

t - z o n e s
security module, which may be available on your SIM card. For more information,
contact your service provider.

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
Security > Security module
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
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.
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> Security > Authority certificates
Menu > Settings >
or User certificates.