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user certificates may also be saved
in the security module by the
service provider.
To view the list of the authority or
user certificates downloaded into
your phone, select Menu >
Settings > Security > Authority
certificates or User certificates.
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 if your SIM card
has a security module. 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 is
shown, which may include the
amount and date.
Check that the header text is Read
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 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. Enter the signing PIN.
The digital signature icon
disappears, and the service may
display a confirmation of your
purchase.
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