Nokia 3650 User Manual page 49

• want to minimise the risk of viruses or other malicious software and be sure of the
authenticity of software when downloading and installing software.
Important: Note, however, that 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.
Viewing certificate details - checking authenticity
You can only be sure of the correct identity of a browser gateway or a server when the
signature and the period of validity of a browser gateway or server certificate have been
checked.
You will be notified on the phone's display:
• if the identity of the browser server or gateway is not authentic or
• if you do not have the correct security certificate in your phone.
To check certificate details, scroll to a certificate and select
When you open certificate details, Certificate management checks the validity of the
certificate and one of the following notes may appear:
• Certificate not trusted - You have not set any application to use the certificate. For
more information, see the next section
certificate'.
• Expired certificate - The period of validity has ended for the selected certificate.
• Certificate not valid yet - The period of validity has not yet begun for the selected
certificate.
• Certificate corrupted - The certificate cannot be used. Contact the certificate issuer.
Important: Certificates have a restricted lifetime. If
→
Options Certificate
'Changing the trust settings of an authority
Expired certificate
Glossary:
Authority certificates are
used by some services,
such as banking services,
for checking signatures or
server certificates or other
authority certificates.
Glossary: User
certificates are issued to
users by a Certifying
Authority.
details.
or Certificate