Nokia 6126 - Manual (Page 68)

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Security module
The security module improves security services for applications requiring a browser
connection, and allows you to use a digital signature. The security module may contain
certificates as well as private and public keys. The certificates are saved in the security
module by the service provider.
To view or change the security module settings, select Menu > Settings > Security >
Security module settings.
Certificates
Important: Even if the use of certificates makes the risks involved in remote
connections and software installation considerably smaller, they must be used
correctly in order to benefit from increased security. The existence of a certificate
does not offer any protection by itself; the certificate manager must contain
correct, authentic, or trusted certificates for increased security to be available.
Certificates have a restricted lifetime. If Expired certificate or Certificate not valid
yet is shown even if the certificate should be valid, check that the current date and
time in your device are correct. Before changing any certificate settings, you must
make sure that you really trust the owner of the certificate and that the certificate
really belongs to the listed owner.
There are three kinds of certificates: server certificates, authority certificates, and user
certificates. You may receive these certificates from your service provider. 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, such as 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. You should not enter
any personal data such as your signing PIN.