Nokia 5800 XpressMusic User Manual

Also see for 5800 - XpressMusic Smartphone - WCDMA: Datasheet User guide Datasheet User guide Quick start guide

Contents

Nokia 5800 XpressMusic User Manual Manual pdf 99 page image

Important: Even if the use of certificates makes therisks involved in remote connections and softwareinstallation considerably smaller, they must be used correctlyin order to benefit from increased security. The existence ofa certificate does not offer any protection by itself; thecertificate manager must contain correct, authentic, ortrusted 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 certificateshould be valid, check that the current date and time in yourdevice are correct.View certificate details — check authenticityYou can only be sure of the correct identity of a server whenthe signature and the validity period of a server certificatehave been checked.You are notified if the identity of the server is not authenticor if you do not have the correct security certificate in yourdevice.To check the details of a certificate, select Options >Certificate details. The validity of the certificate is checked,and one of the following notes may be displayed:● Certificate not trusted — You have not set anyapplication to use the certificate.● Expired certificate — The certificate validity period hasended.● Certificate not valid yet — The certificate validity periodhas not yet begun.● Certificate corrupted — The certificate cannot be used.Contact the certificate issuer.Change the trust settingsBefore changing any certificate settings, you must make surethat you really trust the owner of the certificate and that thecertificate really belongs to the listed owner.To change the settings for an authority certificate, selectOptions > Trust settings. Depending on the certificate, alist of the applications that can use the selected certificate isshown. For example:● Symbian installation: Yes — The certificate is able tocertify the origin of a new Symbian operating systemapplication.● Internet: Yes — The certificate is able to certify servers.● App. installation: Yes — The certificate is able to certifythe origin of a new Java™ application.To change the value, select Options > Change trustsetting.Security moduleSelect Menu > Settings and Phone > Phone mgmt. >Security > Security module.To view or edit a security module (if available), select it fromthe list.To view detailed information about a security module, selectOptions > Security details.Settings© 2008 Nokia. All rights reserved. 99