To view certificate details, open a certificate folder, and selecta certificate and Options > Certificate details.One of the following notes may appear:• Certificate not trusted — You have not set anyapplication to use the certificate. You may want to changethe trust settings.• Expired certificate — The period of validity has endedfor the selected certificate.• Certificate not valid yet — The period of validity has notyet begun for the selected certificate.• Certificate corrupted — The certificate cannot be used.Contact the certificate issuer.Certificate trust settingsSelect Menu > Control panel > Settings and General >Security > Certificate management.Trusting a certificate means that you authorize it to verifyweb pages, e-mail servers, software packages and other data.Only trusted certificates can be used to verify services andsoftware.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.Before 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 trust settings, select a certificate andOptions > Trust settings. Scroll to an application field, andpress the scroll key to select Yes or No. You cannot changethe trust settings of a personal certificate.Depending on the certificate, a list of applications that canuse the certificate is displayed:• Symbian installation — New Symbian operating systemapplication.• Internet — E-mail and graphics.• App. installation — New Java application.• Online certif. check — Online certificate status protocol.View and edit securitymodulesSelect Menu > Control panel > Settings and General >Security > Security module.To view or edit a security module, select the module from thelist.Security and data management© 2008 Nokia. All rights reserved. 137
