Nokia 6100 User Manual page 80

M e n u f u n c t i o n s
Security module
The security module provides
security services for WAP related
applications, and allows you to use
digital signatures. The security
module can contain user and/or
authority certificates as well as
private and public keys. The
certificates are saved in the security
module by the SIM card issuer or the
service provider.
Press Menu, and select Services,
Settings and Security module
settings. Select
• Security module details
the security module title, its
status, manufacturer and serial
number.
• Change signing PIN
signing PIN you want to change.
Key in the current signing PIN
code. Press Change
the new code twice.
See also "Access codes"
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
66
to show
to select the
and key in
on page xiii.
Copyright © 2004 Nokia. All rights reserved.
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
displayed during a WAP
connection, if the data
transmission between the phone
and the WAP gateway or WAP
server (identified by the
address in the Edit active service
settings) 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.
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