Certificate management
Select
Menu
>
Settings
and
Phone
>
Phone mgmt.
>
Security
>
Certificate
management
.
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.
Select from the following:
Authority certificates — View and edit authority certificates.
Trusted site certificates — View and edit trusted site certificates.
Personal certificates — View and edit personal certificates.
Phone certificates — View and edit device certificates.
Digital certificates do not guarantee safety; they are used to verify the origin of
software.
162 Settings
© 2011 Nokia. All rights reserved.
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.
Settings 163
© 2011 Nokia. All rights reserved.
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
.