correctly in order to benefit from increased security. The existence of a certificatedoes not offer any protection by itself; the certificate manager must contain correct,authentic, or trusted certificates for increased security to be available. Certificateshave a restricted lifetime. If "Expired certificate" or "Certificate not valid yet" isshown, even if the certificate should be valid, check that the current date and timein your device are correct.View certificate details — check authenticityYou can only be sure of the correct identity of a server when the signature and thevalidity period of a server certificate have been checked.You are notified if the identity of the server is not authentic or if you do not havethe correct security certificate in your device.To check the details of a certificate, select Options > Certificate details. Thevalidity of the certificate is checked, and one of the following notes may bedisplayed:Certificate not trusted — You have not set any application to use the certificate.Expired certificate — The certificate validity period has ended.Certificate not valid yet — The certificate validity period has not yet begun.Certificate corrupted — The certificate cannot be used. Contact the certificateissuer.Change the trust settingsBefore changing any certificate settings, you must make sure that you really trustthe owner of the certificate and that the certificate really belongs to the listedowner.Settings 187© 2009 Nokia. All rights reserved. 187
