Nokia 6610i User Manual page 94

M e n u f u n c t i o n s
• User certificates are issued to users by a Certifying Authority. User
certificates are required, for example, to make a digital signature and
they associate the user with a specific private key in a security
module.
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.
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.
Digital signature
You can make digital signatures with your phone. This feature requires
support from your SIM card. The signature can be traced back to you via
the private key on the security module and the user certificate that was
used to perform the signature. 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 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
is shown.
Note: 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.
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Read and that the digital signature icon