Certificate Manager - Nokia 002F581 User Manual

provider if you do not have the code. To cancel the
service, select Options
Tip: To send text messages to the SIM contacts while
the fixed dialling service is active, you need to add
the text message centre number to the fixed dialling
list.

Certificate manager

Select Menu Tools
> >
Security Certificate management.
>
Digital certificates are used to verify the origins of
software but do not guarantee safety. There are four
different types of certificates: authority certificates,
personal certificates, trusted site certificates, and device
certificates. During a secure connection, a server may send
a server certificate to your device. Upon receipt, it is
checked through an authority certificate stored in your
device. You receive notification if the identity of the server
is not authentic or if you do not have the correct certificate
in your device.
You can download a certificate from a web site, or receive
a certificate as a message. Certificates should be used
when you connect to an online bank or a remote server to
transfer confidential information. They should also be
used if you want to reduce the risk of viruses or other
malicious software, and to check the authenticity of
software when you download and install software to your
device.
Tip: When you add a new certificate, check its
authenticity.
Deactivate fixed dialling.
>
Settings General
> >
View certificate details
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.
To view certificate details, open a certificate folder, and
select a certificate and Options
One of the following notes may appear:
Certificate not trusted
•
application to use the certificate. You may want to
change the trust settings.
Expired certificate — The period of validity has ended
•
for the selected certificate.
Certificate not valid yet
•
not yet begun for the selected certificate.
Certificate corrupted
•
used. Contact the certificate issuer.
Certificate trust settings
Trusting a certificate means that you authorise it to verify
web pages, e-mail servers, software packages, and other
data. Only trusted certificates can be used to verify services
and 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
Certificate details.
>
— You have not set any
— The period of validity has
— The certificate cannot be
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