Certificates
There are two kinds of certificates: server certificates and authority certificates.
• Server certificates
The phone uses a server certificate to create a connection with improved
security to the 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 if the identity of the Internet server cannot
be verified, if the Internet server certificate is not authentic or if you do not
have the correct authority certificate in your phone.
The security indicator
is displayed during a connection, if the data
transmission between the phone and the Internet server is encrypted.
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However, the security indicator does not indicate that the data transmission
between the Internet server and the content server is secure. It is up to the
service provider to secure the data transmission between the Internet server
and the content server.
• Authority certificates
Authority certificates are used by some browser services, such as banking
services, for checking the validity of other certificates. You may be able to
download authority certificates from a browser service, if the service supports
the use of authority certificates. If you save the certificate, it is added to the
certificate list in the phone.