Table of Contents
Advertisement
Nokia Mobile Phones
1. Introduction
This white paper describes all the various security and authentication methods provided by the Nokia 9290
Communicator. Hardware, software, and other types of security are dealt with in this document. However, the user
should bear in mind that the device itself or even the memory card can be stolen. There are methods that can be
employed to restrict the use of such stolen property.
2. Hardware / SIM security
2.1 SIM Lock
The Nokia 9290 Communicator can be programmed to allow its use only with certain SIM cards. These cards fulfil
certain predefined conditions, such as a predefined operator, or the phone could be programmed to operate with one
SIM card only, for example. The SIM card identification function (SIM lock) can be automatically activated before the
phone is delivered to the end user or at any other suitable time. The activated SIM lock can be disabled by entering
the correct unlocking password. This password is operator and IMEI (International Mobile station Equipment Identity)
specific.
If the SIM lock is activated and an incorrect SIM card is inserted, a note is shown each time the user switches on the
device, or tries to access the SIM card to change the PIN (Personal Identification Number) code. The phone interface
on the display cover displays the message 'SIM card not accepted' if the inserted SIM card is not acceptable.
Emergency calls can be made at any time, however.
2.2 SIM Change Security
If the SIM change security setting is set to 'On' and a new SIM card is inserted (and the IMSI (International Mobile
Subscriber Identification) code of the new SIM card is not in the IMSI list in the phone's memory), the user is
prompted for a lock code. (see section 2.4 below, 'Locking the device').
2.3 PIN Code
The SIM card can be protected from unauthorised use with a PIN code. If the PIN code request is set to 'On', the code
will be requested every time the phone is switched on. If an incorrect PIN code is entered three times, the SIM will
request an eight digit PUK (Personal Unblocking Key) code. If an incorrect PUK code is inserted ten times, then the
SIM card can be used only for emergency calls in which the user must contact the operator.
The PIN2 code is used as an added means of security for some features. For example, the PIN2 code must be entered if
the user wants to reset the accumulated call meter or change the fixed dialling numbers. Incorrectly entering the
PIN2 code three times causes the PUK2 code to be requested. Like the PIN code, the PIN2 code is 8 digits long. If the
PUK2 code is entered incorrectly 10 times, the communicator will display the message 'PIN2 code rejected'.
If the PIN2 code is entered incorrectly three times and the PUK2 code is entered incorrectly 10 times, only those
features that do not depend on the PIN2 code can still be used. It is not possible to disable the PIN2 code.
2.4 Locking The Device
The Nokia 9290 Communicator has a feature that enables the locking of the whole device. In this locked state, the
device and its data can only be accessed by entering the special lock code. Incoming faxes and data calls are accepted,
and voice calls are accepted, and voice calls can be answered when the device cover is closed. The communicator can
be set to be locked automatically within a certain time interval (1-15 minutes), or it can be locked manually,
whenever the user wishes. If the phone's power is off and the communicator interface is locked manually or by time-
Copyright
Nokia Corporation 2001-2002. All rights reserved.
Nokia 9290 Communicator
Security White Paper
3 (9)
Advertisement
Table of Contents
