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.) is shown.
Check that the header text is Read and that the digital signature icon
Note: 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.
The text may not fit within a single screen. Make sure to scroll through and read
all of the text; then select Sign.
Select the user certificate you want to use. Enter the signing PIN (see "General
information," p. 8), and select OK. The digital signature icon disappears, and the
service may display a confirmation of your purchase.
SIM services
In addition to the functions available on the phone, your
SIM card may provide additional services that you can
access in this menu, which is shown only if it is supported
by your SIM card. The name and contents of the menu depend on the SIM card.
For availability, rates, and information on using SIM services, contact your SIM
card vendor, network operator, service provider, or other vendor.
Depending on the operator, you can set the phone to show you the confirmation
messages sent between your phone and the network when you use the SIM
services. Select Menu > Settings > Phone > Confirm SIM service actions > Yes.
Accessing these services may involve sending messages or making a phone call
for which you may be charged.
M e n u f u n c t i o n s
is shown.
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