Nokia 6100 User Manual page 87

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Change signing PIN
Key in the current signing PIN code. Press
code twice.
See also Access codes on page 7.
Certificates
There are three kinds of certificates; server certificates, authority
certificates and user certificates. Authority certificates can either be
saved in the security module by the SIM card issuer or service provider,
or they can be downloaded from a WAP page and be saved in the
phone's memory or on the SIM card. User certificates are saved in the
security module by the SIM card issuer or the service provider. Server
certificates are not saved.
• Server certificates
A server certificate is sent from the WAP server to the phone and its
validity is checked using the authority certificates saved in the phone
or the security module. The phone indicates if the identity of the
WAP server or WAP gateway cannot be verified, if the WAP server or
WAP gateway certificate is not authentic or if you do not have the
correct authority certificate in your phone.
The security indicator
data transmission between the phone and the WAP gateway or WAP
server (identified by the
is encrypted.
It is up to the service provider to secure the data transmission
between the gateway and the content server.
• Authority certificates
Authority certificates are used by some WAP services, such as
banking services, for checking signatures of server certificates or
other authority certificates.
• User certificates
User certificates are issued to users by a Certifying Authority. They
associate a user with a specific private key in a security module and
are used for digital signature.
to select the signing PIN you want to change.
is displayed during a WAP connection, if the
IP address
in the
M e n u f u n c t i o n s
Change
and key in the new
Edit active service
settings)
87

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