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.

Before changing any certificate settings, you must make sure that you really trust the owner of the certificate and that the certificate really belongs to the listed owner.

View certificate details—check authenticity

You can only be sure of the correct identity of a server when the signature and the period of validity of a server certificate have been checked.

You are notified if the identity of the server is not authentic or if you do not have the correct security certificate in your device.

To check certificate details, scroll to a certificate, and select Options > Certificate details. When you open 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 any application to use the certificate.

Expired certificate — The period of validity has ended for the selected certificate.

Certificate not valid yet — The period of validity has not yet begun for the selected certificate.

Certificate corrupted — The certificate cannot be used. Contact the certificate issuer.

Change the trust settings

Before changing any certificate settings, you must make sure that you really trust the owner of the certificate and that the certificate really belongs to the listed owner.

Scroll to an authority certificate, and select Options > Trust settings. Depending on the certificate, a list of the applications that can use the selected certificate is shown. For example:

Symbian installation: Yes — The certificate is able to certify the origin of a new Symbian operating system application.

Internet: Yes — The certificate is able to certify servers.

App. installation: Yes — The certificate is able to certify the origin of a new Java™ application.

Settings

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Nokia RM-320 manual View certificate details-check authenticity, Change the trust settings, 151