Nokia 3250 User Manual page 92

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 >
While opening the certificate
details, the phone checks the
validity of the certificate, and one
of the following notes may appear:
Expired certificate
period has ended for the selected
certificate.
Certificate not valid yet
validity period has not yet begun
for the selected certificate.
Certificate corrupted
certificate cannot be used.
Contact the certificate issuer.
Certificate not trusted
have not set any application to use
the certificate.
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.
Copyright © 2006 Nokia. All rights reserved.
T o o l s
Certificate details.
— The validity
— The
— The
— You
91