Nokia 6610i ユーザーズマニュアル

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service provider before the connection is established and its validity is 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 gateway (identified by the

IP address

in the

Edit active service settings

Bearer settings

) is encrypted.

• 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 make a digital signature and they associate the
user with a specific private key in a security module.

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.

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.