Certificates
There are three kinds of certificates: server certificates, authority certificates and
user certificates.
• Server certificates
The phone uses a server certificate to create a secure connection to the WAP
service provider. 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 phone indicates whethere the identity of the WAP server or WAP gateway
can be verified, whether the WAP server or WAP gateway certificate is
authentic, and whether you have the correct authority certificate on your
phone.
Copyright
2003 Nokia. All rights reserved.
146
The security indicator
is displayed during a WAP connection, if the data
transmission between the phone and the WAP gateway or WAP server
(identified by the
IP address
in the
Edit active service settings
) is encrypted.
However, the security indicator is not an indication 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
For using some WAP services, such as banking services, and for checking the
validity of other certificates, you need an authority certificate. You can
download the certificate from a WAP site, if the WAP service supports the use
of authority certificates. If you save the certificate, it is added to the certificate
list in the phone. Authority certificates may also be available in the security
module.
• User certificates
User certificates are issued to users by a Certifying Authority. User certificates
are required, for example, to create a digital signature and they associate the
user with a specific private key in a security module. User certificates are saved
in the security module by the service provider, or you can download them to
your phone from a WAP site, if supported by the security module of the SIM
card.
Copyright
2003 Nokia. All rights reserved.
147