Nokia N95 8GB Guia Del Usuario página 137

Digital certificates do not guarantee safety; they are
used to verify the origin of software.
In the certificate management main view, you can see
a list of authority certificates that are stored in your
device. Scroll right to see a list of personal certificates,
if available.
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—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
>
certificate details, the validity of the certificate is
checked, and one of the following notes may be
displayed:
Certificate not trusted
●
application to use the certificate.
Expired certificate — The period of validity has
●
ended for the selected certificate.
Certificate not valid yet
●
has not yet begun for the selected certificate.
Certificate corrupted
●
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.
details. When you open
— You have not set any
— The period of validity
— The certificate cannot be
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