Nokia 6020 - Manual (Page 63)

D e v i c e m e n u
62 Copyright © 2005 Nokia
Digital signature
You can make digital signatures with your device 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. To use the
digital signature, can be the same as signing your name to a paper bill, contract,
or other document. See also "Security module," page 60.
To make a digital signature, select a link on a page, such as the title of the book
that you want to buy and its price. The text to sign (possibly including amount,
date, etc.) will be shown.
Verify that the header text is Read and that the digital signature icon is shown.
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.
To sign the text, read all of the text first; then you can 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, and select OK . The
digital signature icon will disappear, and the service may display a confirmation
of your purchase.
■ SIM services
In addition to the functions available on the device, your SIM
card may provide services that you can access in this menu item,
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, for example, the service provider or other vendor.
Depending on the operator, you can set the device to show you the confirmation
messages sent between your device and the network when you are using the SIM
services. Select
Menu > Settings > Phone settings > Confirm SIM service
actions > Yes .
Accessing these services may involve sending messages or making a call for
which you may be charged.