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Authority certificates and 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 SmartChip 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 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, 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 (see "Access
codes," p. 10), and select OK. The digital signature icon disappears, and the
service may display a confirmation of your purchase.
6126.EN_ESv1_BIL_9249003_Cingular_UG.book Page 45 Friday, May 26, 2006 1:22 PM