Nokia 7270 User Manual page 90

Certificates
Important: Note that 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.
There are three kinds of certificates:
server certificates, authority
certificates, and user certificates.
You may receive these certificates
from your service provider. Authority
certificates and user certificates may
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M e n u f u n c t i o n s
also be saved in the security module
by the service provider.
, the security indicator, is
displayed during a connection if the
data transmission between the
phone and the content server is
encrypted.
The security icon does not indicate
that the data transmission between
the gateway and the content server
(or place where the requested
resource is stored) is secure. The
service provider secures the data
transmission between the gateway
and the content server.
Digital signature
You can make digital signatures with
your phone. Using the digital
signature can be the same as signing
your name to a paper bill, contract or
other document.
To make a digital signature, select a
link on a page, for example, the title
of the book that you want to buy and
its price. The text to sign (possibly
including amount, date, etc.) will be
shown.
Check that the header text is
and that the digital signature icon
is shown.
If the digital signature icon does not
appear, there is a security breach,
and you should not enter any
personal data such as your signing
PIN.
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