Nokia 6610i User Guide - Page 130
checking the validity of other certificates. Authority certificates can either
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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. Copyright © 2005 Nokia. All rights reserved. 130