Nokia 6085 - Manual (Page 110)

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To view the list of the authority or user certificates downloaded into your phone,
select
Menu > Settings > Security > Authority certificates or User certificates .
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 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, such as the title of the book
you want to buy and its price. The text to sign is displayed, which may include the
amount and date.
Check that the header text is Read and that the digital signature icon
is displayed.
If the digital signature icon does not appear, there is a security breach. 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 (see “Access
codes,” p. 9) and select
OK . The digital signature icon disappears and the service
may display a confirmation of your purchase.