Nokia N77 - Certificate Management

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2007 Nokia. All rights reserved.
Settings
100
PIN2 code—This code (4 to 8 digits) is supplied with some
SIM cards, and is required to access some functions in your
device.
Lock code (also known as security code)—This code (5
digits) can be used to lock the device to avoid unauthorized
use. The factory setting for the lock code is 12345. To
avoid unauthorized use of your device, change the lock
code. Keep the new code secret and in a safe place
separate from your device. If you forget the code, contact
your service provider.
Personal unblocking key (PUK) code and PUK2 code—These
codes (8 digits) are required to change a blocked PIN code
or PIN2 code, respectively. If the codes are not supplied
with the SIM card, contact the network service provider.
UPUK code—This code (8 digits) is required to change a
blocked UPIN code. If the code is not supplied with the
USIM card, contact the network service provider.
Certificate management
Digital certificates do not guarantee safety; they are used
to verify the origin of software.
In the certificate management main view, you can see a
list of authority certificates that are stored in your device.
Press to see a list of personal certificates, if available.
Digital certificates should be used if you want to connect
to an online bank or another site or remote server for
actions that involve transferring confidential information.
They should also be used if you want to reduce the risk of
viruses or other malicious software and be sure of the
authenticity of software when downloading and installing
software.
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.