Digital Signature - Nokia 6170 User Manual

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
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.
Copyright © 2004 Nokia. All rights reserved.
M e n u f u n c t i o n s
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.
To sign the text, read all of the text
first and then you can select Sign.
The text may not fit within a single
screen. Therefore, make sure to scroll
through and read all of the text
before signing.
Select the user certificate you want
to use. Key in the signing PIN (see
"Access codes" on page ix) and press
OK. The digital signature icon will
disappear, and the service may
display a confirmation of your
purchase.
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