Nokia 5530 XpressMusic - Manual (Page 95)

Important: Even if the use of certificates makes the risks involved in remote
connections and software installation considerably smaller, they must be used correctly
in order to benefit from 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.
View certificate details — check authenticity
You can only be sure of the correct identity of a server when the signature and the
validity 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 have the
correct security certificate in your device.
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 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 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.
To change the settings for an authority certificate, 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.
To change the value, select Options > Change trust setting.
Security module
Select Menu > Settings and Phone > Phone mgmt. > Security > Security
module.
To view or edit a security module (if available), select it from the list.
To view detailed information about a security module, select Options > Security
details.
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