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.) will be shown.
Check 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.
Read all of the text, then select
Sign
.
The text may not fit within a single screen. 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
General information, 12
) and select
OK
.
The digital signature icon will disappear, and the service may display a confirmation of your purchase.