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Settings
72
Certificate management
A list of authority certificates that have been stored in
your phone is displayed in Certificate management. To
see a list of personal certificates if available, scroll right.
Digital certificates should be used if you want to connect
to an online bank or another site or remote server for
actions that involve transferring confidential information.
They should also be used if you want to reduce the risk of
viruses or other malicious software and be sure of the
authenticity of software when downloading and installing
software.
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.
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 and 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.
The phone notifies you if the identity of the server is not
authentic or if you do not have the correct security
certificate in your phone.
To check certificate details, scroll to a certificate, and
select Options > Certificate details. While opening the
certificate details, the phone checks the validity of the
certificate and one of the following notes may appear:
Expired certificate — The validity period has ended for the
selected certificate.
Certificate not valid yet — The validity period has not yet
begun for the selected certificate.
Certificate corrupted — The certificate cannot be used.
Contact the certificate issuer.
Certificate not trusted — You have not set any
application to use the certificate.
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