Nokia E52

Page 151
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Important: 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. Certificates have a restricted
lifetime. If "Expired certificate" or "Certificate not valid yet" is shown, even if the
certificate should be valid, check that the current date and time in your device are
correct.
Before changing any certificate settings, you must make sure that you really trust the
owner of the certificate and that the certificate really belongs to the listed owner.
To change the trust settings, select a certificate and 
Options
 > 
Trust settings
. Scroll
to an application field, and press the scroll key to select 
Yes
 or 
No
. You cannot change
the trust settings of a personal certificate.
Depending on the certificate, a list of applications that can use the certificate is
displayed:
Symbian installation  — New Symbian operating system application.
Internet  — E-mail and graphics.
App. installation  — New Java application.
Online certif. check  — Online certificate status protocol.
View and edit security modules
Select 
Menu
 > 
Ctrl. panel
 > 
Settings
 and 
General
 > 
Security
 > 
Security module
.
To view or edit a security module, select the module from the list.
To view detailed information about a security module, select 
Options
 > 
Security
details
.
To edit the PIN codes for the security module, open the module, and select 
Module PIN
to edit the PIN code for the security module or 
Signing PIN
 to edit the PIN code for
digital signatures. You may not be able to change these codes for all security modules.
The key store contains the contents of the security module. To delete the key store,
select 
Options
 > 
Delete
. You may not be able to delete the key store of all security
modules.
Remote configuration
Select 
Menu
 > 
Ctrl. panel
 > 
Phone
 > 
Device mgr.
.
Security and data management 151
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