Nokia 6220 User Manual page 111

Jesse draft_07_TA.fm Page 110 Thursday, May 22, 2003 8:22 AM
M e n u f u n c t i o n s
• Security module details
manufacturer and serial number.
• Module PIN request to set the phone to ask for the module PIN when
using services provided by security module. Key in the code and
select On. To disable the module PIN request, select Off.
• Change module PIN to change the module PIN, if allowed by the
security module. Enter the current module PIN code, then enter the
new code twice.
• Change signing PIN. Select the signing PIN you want to change. Enter
the current PIN code, then enter the new code twice.
See also Access codes on page 9.
Certificates
There are three kinds of certificates: server certificates, authority
certificates and user certificates.
• The phone uses a server certificate to improve security in connection
to between the phone and the gateway. The phone receives the
server certificate from the service provider before the connection is
established and its validity is checked using the authority certificates
saved in the phone. Server certificates are not saved.
The security indicator
transmission between the phone and the gateway (identified by the
IP address in the Edit active service
However, the security indicator does not indicate that the data
transmission between the gateway and the content server (place
where the requested resource is saved) is secure. It is up to the
service provider to secure the data transmission between the
gateway and the content server.
• Authority certificates are used by some services, such as banking
services, for checking the validity of other certificates. Authority
certificates can either be saved in the security module by the service
provider, or they can be downloaded from the network, if the service
supports the use of authority certificates.
• User certificates are issued to users by a Certifying Authority. User
certificates are required, for example, to make a digital signature and
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to show the security module title, its status,
is displayed during a connection, if the data
settings) is encrypted.