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checked using the authority certificates saved in the phone. Server certificates
are not saved.
The security indicator 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.
• Authority certificates are used by some services, such as banking services, for
checking the validity of other certificates. Authority certificates can either be
saved in the security module by the service provider, or they can be
downloaded from the network, if the service supports the use of authority
certificates.
• User certificates are issued to users by a Certifying Authority. User certificates
are required, for example, to create a digital signature and they associate the
user with a specific private key in a security module.
Important: Note 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; 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.
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