To view certificate details, open a certificate folder, andselect a certificate and Options > Certificatedetails.One of the following notes may appear:• Certificate not trusted — You have not set anyapplication to use the certificate. You may want tochange the trust settings.• Expired certificate — The period of validity hasended for the selected certificate.• Certificate not valid yet — The period of validityhas not yet begun for the selected certificate.• Certificate corrupted — The certificate cannot beused. Contact the certificate issuer.Certificate trust settingsSelect Menu > Control panel > Settings andGeneral > Security > Certificate management.Trusting a certificate means that you authorise it toverify web pages, e-mail servers, software packages,and other data. Only trusted certificates can be used toverify services and software.Important: Even if the use of certificates makesthe risks involved in remote connections and softwareinstallation considerably smaller, they must be usedcorrectly in order to benefit from increased security.The existence of a certificate does not offer anyprotection by itself; the certificate manager mustcontain correct, authentic, or trusted certificates forincreased security to be available. Certificates have arestricted lifetime. If "Expired certificate" or "Certificatenot valid yet" is shown, even if the certificate shouldbe valid, check that the current date and time in yourdevice are correct.Before changing any certificate settings, you mustmake sure that you really trust the owner of thecertificate and that the certificate really belongs to thelisted owner.To change the trust settings, select a certificate andOptions > Trust settings. Scroll to an applicationfield, and press the scroll key to select Yes or No. Youcannot change the trust settings of a personalcertificate.Depending on the certificate, a list of applications thatcan use the certificate is displayed:• Symbian installation — New Symbian operatingsystem application.• Internet — E-mail and graphics.• App. installation — New Java application.• Online certif. check — Online certificate statusprotocol.View and edit securitymodulesSelect Menu > Control panel > Settings andGeneral > Security > Security module.To view or edit a security module, select the modulefrom the list.To view detailed information about a security module,select Options > Security details. 139 Security and data management
