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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.
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.