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2006 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 the 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 if your SIM card has a
security module. The signature can be traced back to you by 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 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 Read and that the digital signature icon is
shown.
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