© 2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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Data Security Kit
DA-SC06
Security Target
Version 1.01 May 21, 2008
This document is a translation of the evaluated and certified security target
written in Japanese.
Panasonic Communications Co., Ltd.
© 2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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Revision History
Version Date Page Description Revised
By
1.00 2008.1.25 － First version Inohara
1.01 2008.5.21 － Corrections of points to be checked, etc. Inohara
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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Contents
1. ST INTRODUCTION............................................................................................................................5
1.1. ST Identification ........................................................................................................................5
1.1.1. ST Identification and Management ...................................................................................5
1.1.2. TOE Identification and Management.................................................................................5
1.1.3. Used CC Version...............................................................................................................5
1.2. ST Overview .............................................................................................................................5
1.2.1. Function Overview.............................................................................................................5
1.2.2. Evaluation Assurance Level..............................................................................................5
1.2.3. Applicable PP....................................................................................................................5
1.2.4. Related Security Target.....................................................................................................5
1.3. CC Conformance ......................................................................................................................5
1.4. Terminology ..............................................................................................................................6
1.5. Reference..................................................................................................................................7
2. TOE DESCRIPTION............................................................................................................................8
2.1. Type of TOE..............................................................................................................................8
2.2. Usage Environment of TOE......................................................................................................8
2.3. Persons Related to TOE...........................................................................................................9
2.4. Configuration of TOE ................................................................................................................9
2.4.1. Physical Configuration.......................................................................................................9
2.4.2. Functions of Digital Imaging System.................................................................................10
2.4.3. Logical Configuration.........................................................................................................12
2.5. Assets Protected by TOE..........................................................................................................14
3. TOE SECURITY ENVIRONMENT ......................................................................................................15
3.1. Assumptions .............................................................................................................................15
3.2. Threats......................................................................................................................................15
3.3. Organizational Security Policies ...............................................................................................15
4. SECURITY OBJECTIVES ...................................................................................................................16
4.1. Security Objectives of TOE.......................................................................................................16
4.2. Security Objectives for IT Environment ....................................................................................16
5. IT SECURITY REQUIREMENTS ........................................................................................................17
5.1. TOE Security Functional Requirements ...................................................................................17
5.1.1. Class FDP: User Data Protection...................................................................................17
5.1.2. Class FIA: Identification and Authentication...................................................................17
5.1.3. Class FMT: Security Management .................................................................................19
5.1.4. Class FPT: Protection of the TSF...................................................................................21
5.1.5. New Security Functional Requirements............................................................................22
5.2. TOE Security Assurance Requirements...................................................................................23
5.3. Security Functional Requirements for IT Environment.............................................................23
5.4. TOE Security Function Strength ...............................................................................................23
6. TOE SUMMARY SPECIFICATION .....................................................................................................24
6.1. TOE Security Functions............................................................................................................24
6.1.1. Hard Disk Drive Overwriting Function for Residual Data (SF.OVWRT) ...........................24
6.1.2. Key Operator Authentication Function (SF.ADM_IA)........................................................24
6.1.3. Hard Disk Drive Lock Management Function (SF.HDMNG).............................................25
6.1.4. Security Mode Operating Management Function (SF.ADMMNG)....................................25
6.1.5. Service Technician Authentication Function (SF.SE_IA)..................................................25
6.1.6. Security Mode Maintenance Management Function (SF.SEMNG) ..................................26
6.2. Security Function Strength........................................................................................................26
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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6.3. Assurance Measures ................................................................................................................27
7. PP CLAIMS..........................................................................................................................................27
8. RATIONALE ........................................................................................................................................28
8.1. Rationale for Security Objectives..............................................................................................28
8.2. Rationale for Security Requirements........................................................................................29
8.2.1. Rationale for Security Function Requirements .................................................................29
8.2.1.1. Reason to Introduce Security Function Requirement FIT_SOS.1 and FIT_MTD.1.......29
8.2.1.2. Relationship between Security Function Requirements and Security Objectives .........30
8.2.1.3. Appropriateness of Security Requirements by Adding Security Functional Requirement
FIT_SOS.1 and FIT_MTD.1 ........................................................................................................31
8.2.2. Dependencies of Security Functional Requirements........................................................32
8.2.3. Interactions among Security Functional Requirements ....................................................33
8.2.3.1. Circumvention ................................................................................................................33
8.2.3.2. Deactivation....................................................................................................................33
8.2.3.3. Corruption.......................................................................................................................34
8.2.3.4. Detection of Attacks Aiming at Defeasance...................................................................34
8.2.4. Validity of Security Function Strength Level......................................................................34
8.2.5. Rationale for Security Assurance Requirements ..............................................................34
8.3. Rationale for TOE Summary Specification ...............................................................................34
8.3.1. Rationale for Function Summary Specification .................................................................34
8.3.2. Rationale for TOE Security Function Strength..................................................................36
8.3.3. Rationale for Assurance Measures...................................................................................36
8.4. Rationale for PP Claims............................................................................................................38
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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1. ST Introduction
1.1. ST Identification
1.1.1. ST Identification and Management
Title: Data Security Kit DA-SC06
Security Target
Version: 1.01
Date: May 21,2008
Creator: Panasonic Communications Co., Ltd.
1.1.2. TOE Identification and Management
Title: Japan: Data Security Kit DA-SC06 (in Japanese)
Overseas: Data Security Kit DA-SC06
Version: V1.01
Creator: Panasonic Communications Co., Ltd.
The Data Security Kit DA-SC06 (in Japanese) for Japan and the Data Security Kit DA-SC06 for Overseas are the identical
contents, with only different names.
1.1.3. Used CC Version
Common Criteria for Information Technology Security Evaluation,Version2.3,August 2005
Common Criteria for Information Technology Security Evaluation, Version2.3 (Translation Version 1.0)
Interpretation-0512(in Japanese)
1.2. ST Overview
1.2.1. Function Overview
This Security Target describes the security-related specifications of Data Security Kit DA-SC06, which is an optional product of
Digital Imaging System DP-8032P / 8025P, DP-8032V / 8025V, DP-8032VA / 8025VA for Japan, DP-8032 / 8025 for Overseas
manufactured by Panasonic Communications Co., Ltd. All models require the installation of optional hard disk unit.
Data Security Kit DA-SC06 is a software product to protect the used document data which had been already stored on the hard
disk drive after being processed by Digital Imaging System from being disclosed illicitly.
1.2.2. Evaluation Assurance Level
EAL2 conformant
1.2.3. Applicable PP
There is no applicable Protection Profile.
1.2.4. Related Security Target
There is no related Security Target.
1.3. CC Conformance
This TOE conforms to the following CCs.
- CC Version 2.3 Part 2 extension
- CC Version 2.3 Part 3 conformant
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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1.4. Terminology
The terminology used in this document is described in Table 1.
Table 1 Terminology
Terminology Description
Digital Imaging
System
DP-8032/8025
Peripheral which integrates functions such as copy, printer, scanner and facsimile into
one machine. In this ST the term “DP-8032 / 8025” is used to generically refer to the
models DP-8032P / 8025P DP-8032V / 8025V DP-8032VA / 8025VA (for Japan) and
DP-8032 / 8025 (for Overseas) with the optional hard disk unit installed. “DP-8032 /
8025” is manufactured by Panasonic Communications Co., Ltd.
Hard Disk Unit Optional Hard Disk Unit for Digital Imaging Systems manufactured by Panasonic
Communications Co., Ltd.
Internal Network The LAN used in the organization where the Digital Imaging System DP-8032 / 8025 is
introduced.
External Network The networks other than the Internal Network, such as internet.
USB A data transmission standard which connects peripherals to a personal computer.
Tandem Copy A printing function whereby half of the specified number of copies for the data captured
from the scanner are printed by the Digital Imaging System DP-8032 / 8025 that
captured the data, and the other half are printed on the other Digital Imaging System
DP-8032 / 8025 that is connected in the Internal Network.
Remote Copy A printing function whereby all the data captured from the scanner are printed on some
other Digital Imaging System DP-8032 / 8025.
General User One who uses copy, printer, scanner or facsimile functions of Digital Imaging System
DP-8032 / 8025.
Key operator One who manages a Digital Imaging System DP-8032 / 8025.
Service Technician A technician who belongs to the service provider company to provide installation,
maintenance and repair services of Digital Imaging System DP-8032 / 8025.
Service Mode A set of maintenance functions that the service technician uses for installation,
maintenance and repair services of Digital Imaging System DP-8032 / 8025.
Service Mode Setting
Procedure
The setting procedure that a service technician uses to switch the mode to Service
Mode.
Initialization Operation to go back to the initial setting activated by a Maintenance Management
function "System Initialization".
Control Panel Operation Panel with keys, LEDs and a touch panel display required for operating the
functions of Digital Imaging System DP-8032 / 8025.
SPC PCB to control the mechanical function of scanner and printer unit.
FROM Nonvolatile memory allowing electrical block erasure and reprogramming of arbitrary
portion.
Document Data Collective name for all digitized image data handled inside digital imaging system when
copy, print, scanner or facsimile functions are used in Digital Imaging System DP-8032 /
8025.
- Image data captured from scanner unit.
- Image data that can be printed on printer unit.
- Image data that have been transformed from the raw data by image processing
technology.
- Image data received from client PCs or the received data to be transformed to image
data.
Used Document Data Document Data that is stored on the hard disk drive of the Digital Imaging System
DP-8032 / 8025 and had already been used.
Job A unit of operations comprising of a series of functions in copy, printer, scanner or
facsimile functions of Digital Imaging System DP-8032 / 8025.
Job Cancellation Canceling function issued from Control Panel to cancel some of the jobs that have not
been started with printing yet on the printer unit, after multiple jobs have been assigned
to Digital Imaging System DP-8032 / 8025 that is being used for copying or printing.
Accepting Sound Panel touch tone peep sounding notifying that the input characters or operations from
control panel have been accepted correctly in Digital Imaging System DP-8032 / 8025.
Alert Sound Panel touch tone peep sounding three times notifying that the input characters or
operations from control panel of Digital Imaging System DP-8032 / 8025 have been
found to be incorrect.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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1.5. Reference
- Common Criteria for Information Technology Security Evaluation
Part1: Introduction and general model August 2005 Version 2.3 CCMB-2005-08-001
- Common Criteria for Information Technology Security Evaluation
Part2: Security functional requirements August 2005 Version 2.3 CCMB-2005-08-002
- Common Criteria for Information Technology Security Evaluation
Part3: Security assurance requirements August 2005 Version 2.3 CCMB-2005-08-003
- Interpretations-0512 (in Japanese)
- ISO/IEC 15408:2005 Information Technology –Security techniques-Evaluation criteria for IT Security –Part1
- ISO/IEC 15408:2005 Information Technology –Security techniques-Evaluation criteria for IT Security –Part2
- ISO/IEC 15408:2005 Information Technology –Security techniques-Evaluation criteria for IT Security –Part3
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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2. TOE Description
2.1. Type of TOE
TOE is a software product, Data Security Kit DA-SC06 installed in the digital imaging system, to protect the used document
data which had been already stored on the hard disk drive after being processed by the digital imaging system from being
disclosed illicitly.
TOE is offered as an optional product of Panasonic Communications Co., Ltd. for the following Digital Imaging System models,
and provides the security functions by replacing with the standard bundled software of the digital imaging system.
z Japanese domestic model (*): DP-8032P / 8025P, DP-8032V / 8025V, DP-8032VA / 8025VA
z Over seas model(*): DP-8032 / 8025
(*) All models require the installation of the optional Hard Disk Unit.
The following description of the digital imaging system DP-8032 / 8025 will be based on the models DP-8032V / 8025V,
DP-8032VA / 8025VA which has the optional Facsimile Communication Unit installed. (Note that the Facsimile Communication
Unit can not be installed on models DP-8032P / 8025P.)
2.2. Usage Environment of TOE
Digital Imaging System DP-8032 / 8025 is a digital imaging system with network function, offering not only copy, printer,
scanner and facsimile functions, but also the functions to manage the operations as well as the maintenance for the machine.
Digital Imaging System DP-8032 / 8025 is assumed to be used, as shown in the Fig.1 Assumed Usage Environment, in the
condition where the system is connected to internal network of offices or public facilities, public telephone line network, or
locally to the client PC.
Fig. 1 Assumed Usage Environment
Digital Imaging System DP-8032 / 8025 is connected to general user’s client PCs, FTP servers and Mail servers by Internal
Network, and performs such operations as printing the document data received from Client PCs or Mail servers, and sending
the document data captured from scanner to Client PCs, FTP servers and Mail servers.
Digital Imaging System DP-8032 / 8025 can also be connected to other Digital Imaging System DP-8032 / 8025 by Internal
Network, and is used for tandem copy as well as remote copy whereby the document data captured from a scanner of one
digital imaging system is printed by the other digital imaging system.
The system can also be connected locally to a general user’s client PC (through USB) and used as a printer.
When connected to External Network, the connection is done via firewall to protect the various machines connected to
Internal Network.
TOE is a software product installed on the Digital Imaging System DP-8032 / 8025 to protect the used document data which
had been already stored on the hard disk drive after being processed by digital imaging systems from being disclosed illicitly.
Mail Server
Office
Firewall
External Network
Internal Network
Public Telephone Line
Network
FTP Server
Client PC
USB
Digital Imaging System
DP-8032 / 8025
Client PC
ＴＯＥ
ＴＯＥ
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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2.3. Persons Related to TOE
Following are the persons related to Digital Imaging System DP-8032 / 8025 with TOE installed.
(1) General User
General users are the ones who use the general functions of Digital Imaging System DP-8032 / 8025, such as
copy, printer, scanner and facsimile.
(2) Key operator
The machine administrator called key operator is to perform operating management using the operating management
functions offered by Digital Imaging System DP-8032 / 8025.
Key operator is appointed by the person in charge of Digital Imaging System DP-8032 / 8025.
(3) Person in charge
Person in charge is the one who is in charge of introducing Digital Imaging System DP-8032 / 8025, and appoints
and manages the Key operator.
(4) Service technician
The service technician provides installation, maintenance and repair services, using the maintenance and management
functions offered by Digital Imaging System DP-8032 / 8025.
Service technicians belong to the company which undertakes the maintenance of Digital Imaging SystemDP-8032 / 8025.
2.4. Configuration of TOE
2.4.1. Physical Configuration
The physical configuration of Digital Imaging System DP-8032 / 8025 with TOE installed is shown in Fig. 2.
Fig. 2 Physical Configuration of Digital Imaging System DP-8032 / 8025 and TOE
Digital Imaging System DP-8032 / 8025 comprises of four PCBs, which are: 1) Main PCB to control the entire digital imaging
system, 2) Panel control PCB that controls the control panel where all the necessary keys, LEDs and a touch panel for
operations of digital imaging system are laid out, 3) SPC PCB that controls the mechanical operations of scanner unit and
printer unit, and 4) PCB for facsimile communication unit.
1) Main PCB and 2) Panel PCB are connected by Internal Interface for communicating the control data.
1) Main PCB and 3) SPC PCB are connected by Internal Interface for communicating the control data and the document data.
3) SPC PCB performs the communication of control data with scanner unit to control the mechanical motion of scanner. The
document data captured from the scanner are sent directly to 1) Main PCB. Also 3) SPC PCB exchanges the control data and
Scanner Unit
Key LEDs Touch Panel
2)Panel PCB
1)Main PCB
USB
Ethernet
CPU Memory
Printer Unit 3)SPC PCB
4)Facsimile
Communication
Unit
Public Telephone
Line Network
Internal
Network
Hard Disk Drive
Digital Imaging
System
DP-8032 / 8025
Copy
Control
Function
Printer
Control
Function
Scanner
Control
Function
Facsimile
Control
Function
Key Operator
Authentication
Function
Hard Disk Drive Lock
Management Function
Control Panel
ＴＯＥ
Client PC
Operating Management
Function
Hard Disk Drive
Overwriting Function
for Residual Data
FROM
Security Mode
Operating Management
Function
Maintenance
Management Function
Service Technician
Authentication
Function
Security Mode
Maintenance
Management
Function
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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document data with printer unit, and prints document data while executing the mechanical controls of the printer.
1) Main PCB and 4) Facsimile Communication Unit are connected to each other by Internal Interface, and 4) Facsimile
Communication Unit is further connected to Public Telephone Line Network to send/receive facsimile data.
Furthermore, 1) Main PCB has the Ethernet and USB interface to connect to Client PCs and Mail/FTP servers. Also, the hard
disk drive unit to store the document data is connected to 1) Main PCB.
1) Main PCB comprises of CPU, FROM that stores software, Memory that stores data and other electronic circuits to control
the entire digital imaging system.
TOE is a group of software recorded on FROM that is mounted on Main PCB and is shown in the shaded portion of Fig. 2,
namely:
- Key Operator Authentication Function
- Service Technician Authentication Function
- Security Mode Operating Management Function
- Security Mode Maintenance Management Function
- Hard Disk Drive Lock Management Function
- Hard Disk Drive Overwriting Function for Residual Data
TOE is to protect the used document data which had been already stored on the hard disk drive after being processed by copy,
printer, scanner functions, from being disclosed illicitly.
2.4.2. Functions of Digital Imaging System
Digital Imaging System DP-8032 / 8025 provides general users with copy, printer, scanner and facsimile functions.
(1) Copy Function
The function is to capture the document data from scanner and to print the data on printer unit.
There are several copy functions depending upon how the document data are stored temporarily on the hard disk drive,
as shown below.
- Non-sort Copy Function:
Non-sort copy refers to the manner of output of, for example, 2 copies of a 3 page document in the printing order of P1,
P1, P2, P2, P3, P3. The document data captured from the scanner is stored on the hard disk drive, and then read out
from the hard disk to be printed in the non-sort order.
- Sort Copy Function:
Sort copy refers to the manner of output of, for example, 2 copies of a 3 page document in the printing order of P1, P2,
P3, P1, P2, P3. The document data captured from the scanner is stored on the hard disk drive, and then read out from
the hard disk drive to be printed in the sort order.
- Tandem Copy Function:
A printing function whereby document data are captured from the scanner to be stored on the hard disk drive and a half
of the specified number of copies are printed by the Digital Imaging System DP-8032 / 8025 that captured the data, and
the other half are printed on the other Digital Imaging System DP-8032 / 8025 that is connected in the Internal Network.
The document data received from the Internal Network is also stored on the hard disk drive, and then read out from the
hard disk drive to be printed so as to harmonize the printing speed.
- Remote Copy Function:
A printing function whereby the document data are captured from the scanner to be stored on the hard disk drive, and
then all the data are printed on some other Digital Imaging System DP-8032 / 8025 connected in the Internal Network.
The document data received from the Internal Network is also stored on the hard disk drive, and then read out from the
hard disk drive to be printed so as to harmonize the printing speed.
- Overlay Function:
A printing function whereby the first page of the document data captured from the scanner is stored on the hard disk
drive, and is printed with the second page and all other pages captured thereafter from the scanner, as the overlay
manner.
- File Editing Function:
The function allows the document captured from the scanner to be stored on the hard disk drive, registered with a
document name called image title, and the document name be changed or deleted. The function is used when the
registered document data and the document data captured from the scanner are overlay printed.
(2) Printer Function
The function is to print the document data received from a Client PC of a general user, on the printer unit.
On the Client PC of the general user, the dedicated printer driver software for the Digital Imaging System
DP-8032 / 8025 is need to be installed.
Under the printer function, the received document data are temporarily stored on the hard disk drive. While in the usual
printer function, the received document data are printed as soon as the internal processing within the imaging system is
completed, following functions allow the document data to be preserved on the hard disk drive until the printing instructed
from the control panel by the general user is completed.
- Mailbox Function:
The received document data is stored on the hard disk drive, and is printed only when the user ID is input from the
control panel of Digital Imaging System DP-8032 / 8025.
- Securitybox Function:
The received document data is stored on the hard disk drive, and is printed only when the user ID and the correct
password are input from the control panel of Digital Imaging System DP-8032 / 8025.
(3) Scanner Function
The document data captured from the scanner is temporarily stored on the hard disk drive, and then sent to a Client PC
or an FTP server.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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To be able to send the data to a Client PC, the accessory software Panasonic Communication Utility of Panasonic
Document Management System must be installed and running on the Client PC.
(4) Facsimile Function
Facsimile Function is the collective name for the entire G3 communication, Internet FAX and E-mail functions.
G3 communication is to send the document data captured from the scanner unit to facsimile terminals over the public
telephone line network, and receive the document data from facsimile terminals over the public telephone line network
and print on the printer unit.
Internet FAX function is to send the document data captured from the scanner unit to a Mail server to be further sent to
internet FAX terminals connected to internet, and receive the document data from internet FAX terminals via a Mail
server and print it.
E-mail function is to send the document data captured from the scanner to the specified E-mail address with an E-mail
attached, via a Mail server.
With the Facsimile Function, there is no document data temporarily stored on the hard disk drive.
The functions to control Digital Imaging System DP-8032 / 8025 to achieve above copy, printer, scanner and facsimile functions
are called copy control function, printer control function, scanner control function and facsimile control function respectively.
(5)Maintenance Management Function
This function is also called service mode which is only operable by the service technicians, and can direct such works as
installation, maintenance and repair of Digital Imaging System DP-8032 / 8025 from the control panel. The major
functions include self testing function of all LEDs lighting up on the control panel, operating test function such as single
copy and serial copy, parameter setting such as switching of power frequency, and software update function.
Although Maintenance Management Function itself does not have the function to access to the document data stored on
hard disk drive, it has the function called “System initialization” which resets the setting of TOE data described in 2.4.3.
Logical Configuration (6) Security Mode Maintenance Management Function, to the initial values.
(6)Operating Management Function
This function is only operable by the key operator, and can change the setting regarding the operations of Digital Imaging
System DP-8032 / 8025 from the control panel. The major functions include setting of low power mode, date and time
setting, and network settings, and can also set the "Mailbox Data Holding" for the Mailbox and Securitybox described in
(2) Printer Function, or direct "Delete Mailbox Data"
Although the Operating Management Function does not have the function to access to the document data stored on the
hard disk drive, it has the formatting function to create management information to make the hard disk drive usable. The
(3) Hard Disk Drive Lock Management Function and (4) Security Mode Operating Management Function described in
2.4.3. Logical Configuration are also part of the Operating Management Function.
(7) Hard Disk Drive Function
The hard disk drive unit of Digital Imaging System DP-8032 / 8025 has the drive lock function attached whereby the
password can directly be assigned to the hard disk drive so that the hard disk drive cannot be recognized unless the
correct password is entered. Once the hard disk drive receives the setting command of "Hard Disk Drive Lock Password"
using the (3) Hard disk drive lock management function described in 2.4.3. Logical Configuration, it accepts the access
from the Digital Imaging System DP-8032 / 8025 only when the password matches with the one that is retained in the
drive unit. Also the hard disk drive unit has the function to reset the password that was set in the hard disk drive to
"unsetup" condition, when the lock password matches.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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2.4.3. Logical Configuration
The logical configuration of Digital Imaging System DP-8032 / 8025 with TOE installed is shown in Fig. 3.
Fig. 3 Logical Configuration of Digital Imaging System DP-8032 / 8025 and TOE
Digital Imaging System DP-8032 / 8025, with the TOE installed, stores document data temporarily on the hard disk drive to
perform copy, printer or scanner function. This temporary document data becomes a set of used document data as shown in
Table 2 “Patterns of Used Document Data Development”, and will be erased as soon as they are finished with usage.
Usually in the electronic equipments using hard disk drive, the deletion of data in the hard disk drive means to delete the data
management information only, and the entire data area of the corresponding data is not erased.
Therefore when the hard disk drive are stolen, replaced or discarded, the used document data of general users are still
remaining, and it is possible to retrieve the used document data from the hard disk drive using a PC or some other tools.
To deal with this problem, The TOE provides the following security functions to protect the used document data which had been
already stored on the hard disk drive.
(1) Hard Disk Drive Overwriting Function for Residual Data
When the document data is processed by copy control function, printer control function or scanner control function, and
becomes used document data, this function immediately and automatically overwrites and erases the entire area of the
document data.
There are following three overwriting and erasing methods.
- Basic: Only the management information for the document data is deleted.
- Medium: Over the entire area of the document data, the data of all 0's are overwritten three times for erasure.
- High: Over the entire area of the document data, random values are overwritten twice and then all 0's are overwritten
once for erasure.
This overwriting and erasing method is specified in the "Hard Disk Data Erasure Level" described in (4) Security
Mode Operating Management Function.
Since "Basic: Only the management information for the document data is deleted" is the initial setting, the key operator
normally selects Medium or High to operate the Digital Imaging System DP-8032 / 8025.
Note that only the key operator can use the "Hard Disk Initialization" function which is described in (4) Security Mode
Operating Management Function, to overwrite and erase the residual document data on the hard disk drive by either
Medium or High, in such cases as the drives are discarded.
(2) Key Operator Authentication Function
This function is key operator identification and authentication, by means of the input to the control panel and the entered
Copy
Control
Function
Printer
Control
Function
Scanner
Control
Function
Facsimile
Control
Function
Used Document Data
Control Panel
Other Digital
Imaging System
DP-8032 / 8025
Client PC
Client PC
FTP Server
Public Telephone
Line Network
ＴＯＥ
Mail Server
Key Operator
Authentication
Function
Hard Disk Drive
Overwriting Function
for Residual Data
Setup Data
Hard Disk Drive Memory
Maintenance
Management Function
Security Mode Operating
Management Function
Hard Disk Drive Lock
Management Function
Security Mode
Maintenance
Management Function
Service Technician
Authentication Function
Operating Management
Function
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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dedicated password for key operator (hereinafter called key operator password). Only the key operator can perform
operations described in (3) Hard Disk Drive Lock Management Function and (4) Security Mode Operating Management
Function.
(3)Hard Disk Drive Lock Management Function
The hard disk drive unit has the drive lock function attached whereby the password can directly be assigned to the hard
disk drive so that the hard disk drive cannot be recognized unless the correct password is entered. Only the key operator
can set up and change the password for the memory inside the digital imaging system controlling the "Hard Disk Drive
Lock Password" and the hard disk drive, and also reset the drive lock setting the password to "unsetup" condition. At its
startup time, the digital imaging system sends the password stored in the memory inside the system to the hard disk drive,
requesting the data access to it.
(4) Security Mode Operating Management Function
Only the key operator can direct following setup and change of setting data and processing regarding the security.
- "Hard Disk Data Erasure Level"
This function specifies the erasing mode of overwriting data for residual data stored on the hard disk drive, which is
automatically executed at the instant when the copy control function, printer control function or scanner control function
is completed and the used document data develops.
It can set up three types of overwriting and erasing, Basic (initial setting), Medium and High.
- "Hard Disk Initialization"
Upon the direction from key operator, this function overwrites and erases all document data stored on the hard disk
drive. As the ways to overwrite and erase, there are two types, Medium and High.
- "Key Operator Password"
This function is to set up and change the key operator password.
(5) Service Technician Authentication Function
This function is service technician identification and authentication by the operations of service mode setup procedure
from the control panel as well as the entered password. Only the service technician is allowed for operations described
in (6) Security Mode Maintenance Management Function.
(6) Security Mode Maintenance Management Function
Only the service technician can direct the setup, change and initialization (returning to the initial setting) for the
following setup data regarding the security.
- "Service Technician Password"
Sets up and changes the service technician password.
- "System Initialization"
Under the direction from the service technician, this function is to initialize such setup data as "Hard Disk Drive Lock
Password" described in (3) Hard Disk Drive Lock Management Function, "Hard Disk Data Erasure Level" and "Key
Operator Password" described in (4) Security Mode Operating Management Function, "Service Technician Password"
described in (6) Security Mode Maintenance Management Function, to the initial setting.
The security related setting data, "Hard Disk Drive Lock Password", "Hard Disk Data Erasure Level", “Key Operator Password”
and "Service Technician Password" are stored in the memory.
"System Initialization" is to initialize the contents set up in the memory mounted on the Main PCB, which is usable at the time of
repair or disposal of Digital Imaging System DP-8032 / 8025, to the initial setting, the condition of shipment from the factory.
Since the initial setting of "Hard Disk Data Erasure Level" is "Basic", the data area of residual used document data stored on the
hard disk drive cannot be overwritten and erased. Since “System initialization” only initialize the setup data of "Hard Disk Drive
Lock Password", and will not send the setup command to the hard disk drive, "System initialization" only will not allow reading
the residual data stored on the hard disk drive. Since the setup data of "Key Operator Password" and "Service Technician
Password" are also initialized, reconfiguring the setup for these data will be necessary at the time of "System initialization."
At the time of installing a Digital Imaging System DP-8032 / 8025 with TOE installed, when the "System initialization"
Is executed:
A service technician, after entering the initial setting data of service technician Password and being authenticated, will
- change the "Service Technician Password"
A key operator, after entering the initial setting data of key operator Password from the control panel and being
authenticated, will
- set up the "Hard Disk Data Erasure Level" to Medium or High
- at the installation time, set up the "Hard Disk Drive Lock Password"
at the execution time of "System Initialization", set up again the "Hard Disk Drive Lock Password" that was set up in the
hard disk drive
- change "Key Operator Password"
before using TOE and operating it.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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Table 2 Patterns of Used Document Data Development
Function
Name
Development Pattern
When a general user is using the non-sort copy (e.g. printing 2 copies of a 3 page document in the order of P1,
P1, P2, P2, P3, P3) by directing from the control panel, the used document data develops at the point when
each page is finished with printing.
When a general user is using the sort copy (e.g. printing 2 copies of a 3 page document in the order of P1, P2,
P3, P1, P2, P3) by directing from the control panel, the used document data develops at the point when the
entire printing is finished.
When a general user uses the remote copy directing from the control panel, the captured document data
becomes the used document data at the point when all data is finished with being transferred to the other digital
imaging system.
During the above sort copy and non-sort copy operations, the data becomes the used document data at the
point when the general user directs cancel printing from the control panel.
During the above sort copy and non-sort copy operations, the data becomes the used document data at the
point when the general user directs job cancellation from the control panel.
Copy
Function(*)
During file editing, a document data becomes used data at the time when a general user directs erasure of the
registered document data from the control panel.
During the print function being initiated by a general user from a Client PC, the document data becomes used
data when each page is finished with printing for the non-sort copying, and when the entire printing is finished
for the sort copying.
The document data received from a Client PC where a general user directed Mailbox transaction becomes used
data at the point when the receiving user(s) complete all printings after entering the user IDs from the control
panel.
The document data received from a Client PC where a general user directed Securitybox transaction becomes
used data at the point when the receiving user(s) complete all printings after entering the user IDs and
password(s) from the control panel.
During printing operations using printing functions, the data becomes the used document data at the point when
the general user directs cancel printing from the control panel.
During printing operations using printing functions, the data becomes the used document data at the point when
the general user directs job cancellation from the control panel.
The document data preserved in the Mailbox or Securitybox becomes used document data at the point when
the "Mailbox Data Holding" set up by the key operator using Operating Management Function expires.
Printer
Function
The document data preserved in the Mailbox or Securitybox becomes used document data at the point when
the "Delete Mailbox Data" is directed by the key operator using Operating Management Function.
Copy/
Printer
Function
In the copy operation directed from the control panel by a general user, or in the printing operation directed from
a Client PC by a general user, if the printing is suspended by such events as paper jam, the document data
temporarily stored on the hard disk drive becomes used data at the point when each page is finished with
printing for the non-sort mode, and entire printing is finished for the sort mode, after recovering from the
suspension.
When a general user uses the scanner function directing from the control panel, the captured document data
becomes the used document data at the point when all data is finished with being transferred to the Client PC or
FTP server.
When a general user uses the scanner function directing from the control panel, the captured document data
becomes the used document data at the point when the data transfer to the Client PC or FTP server fails by
some error.
Scanner
Function
The document data captured from the scanner becomes used data at the point when the general user directs
canceling from the control panel during the capturing operation.
(*) With regards to the tandem copy, remote copy and overlay copy, the same patterns of used document data development as
non-sort copy and sort copy are included in the non-sort copy and sort copy respectively in this table.
2.5. Assets Protected by TOE
The assets protected by TOE are the used document data which had been already stored on the hard disk drive of Digital
Imaging System DP-8032 / 8025 after being processed by the digital imaging system.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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3. TOE Security Environment
3.1. Assumptions
The assumptions of performance, operations and uses for this TOE are shown in Table 3.
Table 3 Assumptions
Assumptions Description
A.SETSEC - Security Mode setting
Key operator enables following TOE functions before operations.
"Hard Disk Drive Lock Password" is set up.
A.ADMIN - Credibility of key operator
Key operator is a person who commits no illicit acts.
A.SE - Credibility of service technician
Service technician is a person who commits no illicit acts.
3.2. Threats
The threats that this TOE should counter are shown in Table 4.
Attacker is assumed to have general knowledge of IT and Digital Imaging Systems, and have the low level of attacking ability
using the information and tools that are easily available.
Table 4 Threats
Threats Description
T.RECOVER - Illicit recovery of used document data
General users or the non-related persons to TOE having malicious intention may attempt to
recover the used document data by connecting PC or other tools to hard disk drive.
3.3. Organizational Security Policies
The organizational security policies that this TOE is requested to follow are shown in Table 5.
Table 5 Organizational Security Policies
Organizational Security
Policies
Description
P.OWMETHOD - The used document data remaining on the hard disk drive to be overwritten and erased.
The data area of used document data remaining on the hard disk drive must be overwritten and
erased.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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4. Security Objectives
4.1. Security Objectives of TOE
The security objectives of TOE are shown in Table 6.
Table 6 Security Objectives of TOE
Security Objectives Description
O.HDLMNG TOE must disable the recovery of any used document remaining on the hard disk drive, by
allowing only the authenticated key operator to set up the "Hard Disk Drive Lock Password" on the
hard disk drive.
O.RESIDUAL TOE must provide, in addition to the Basic level that has no overwriting and erasing operations,
two types of hard disk drive overwriting function for residual data, the Medium and the High of
"Hard Disk Data Erasure Level".
4.2. Security Objectives for IT Environment
The security objectives for TOE IT Environment are shown in Table 7.
Table 7 Security Objectives of TOE IT Environment
Security Objectives Description
OE.AUTH At all times other than maintenance services, key operator must use the Operating Management
Function of Digital Imaging System DP-8032 / 8025, and set up and use Medium or High of "Hard
Disk Data Erasure Level", and also "Hard Disk Drive Lock Password".
OE.ADMIN To assure that the key operator performs no illicit acts, the person in charge must appoint the right
person for the key operator, and also provide adequate administrations and educations so that the
key operator can execute the required jobs and acquire necessary knowledge.
OE.SE When a service technician is to be engaged with maintenance works for Digital Imaging System
DP-8032 / 8025, person in charge or key operator must confirm that the technician is the
employee of the company which undertakes the maintenance of the Digital Imaging System.
OE.HDD Hard disk drive protects the used residual document data stored on the hard disk drive from illicit
accesses by Hard Disk Drive Lock Password.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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5. IT Security Requirements
5.1. TOE Security Functional Requirements
The requirements here specify the security functional requirements provided by TOE.
5.1.1. Class FDP: User Data Protection
FDP_RIP.1 Subset Residual Information Protection
Hierarchical to: No other components.
FDP_RIP.1.1 The TSF shall ensure that any previous information content of a resource is made unavailable upon
the [selection: allocation of the resource to, deallocation of the resource from] the following
objects:[assignment: list of objects].
[selection: allocation of the resource to, deallocation of the resource from]
-Deallocation of the resource from
[assignment: list of objects]
-Hard disk drive on which used document data are stored
Dependencies: No dependencies.
5.1.2. Class FIA: Identification and Authentication
FIA_AFL.1(1) Authentication failure handling
Hierarchical to: No other components.
FIA_AFL.1.1(1) The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful authentication
attempts occur related to [assignment: list of authentication events]. (Note)
[assignment: list of authentication events]
-Key Operator Authentication Function
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]](Note)
-1
FIA_AFL.1.2(1) When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]
-Withholding authentications for more than one second.
Dependencies: FIA_UAU.1 Timing of authentication
FIA_AFL.1(2) Authentication failure handling
Hierarchical to: No other components.
FIA_AFL.1.1(2) The TSF shall detect when [selection: [assignment: positive integer number], an administrator
configurable positive integer within [assignment: range of acceptable values]] unsuccessful authentication
attempts occur related to [assignment: list of authentication events]. (Note)
[assignment: list of authentication events]
-Service Technician Authentication Function
[selection: [assignment: positive integer number], an administrator configurable positive integer
within [assignment: range of acceptable values]] (Note)
-1
FIA_AFL.1.2(2) When the defined number of unsuccessful authentication attempts has been met or surpassed, the TSF
shall [assignment: list of actions].
[assignment: list of actions]
-Withholding authentications for more than one second.
Dependencies: FIA_UAU.1 Timing of authentication
(Note) The relationship among [, ", "and] is different from the Common Criteria Version 2.3 (Translation Version 1.0) for IT
Security Evaluation.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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FIA_SOS.1(1) Verification of secrets
Hierarchical to: No other components.
FIA_SOS.1.1(1) The TSF shall provide a mechanism to verify that secrets meet[assignment: a defined quality metric] .
Refinement: Secret -> Key operator password
[assignment: a defined quality metric]
The quality metric of key operator password is defined as follows.
- Character length fixed to 8
- Upper case alphabets, lower case alphabets, numerals, symbols
- A string of same 8 characters is prohibited.
Dependencies: No dependencies.
FIA_SOS.1(2) Verification of secrets
Hierarchical to: No other components.
FIA_SOS.1.1(2) The TSF shall provide a mechanism to verify that secrets meet [assignment: a defined quality metric] .
Refinement: Secret -> Service technician password
[assignment: a defined quality metric]
The quality metric of service technician password is defined as follows.
- Character length fixed to 8
- Upper case alphabets, lower case alphabets, numerals, symbols
- A string of same 8 characters is prohibited.
Dependencies: No dependencies.
FIA_UID.2(1) User identification before any action
Hierarchical to: FIA_UID.1
FIA_UID.2.1(1) The TSF shall require each user to identify itself before allowing any other TSF-mediated actions on
behalf of that user.
Refinement: User -> Key operator
Dependencies: No dependencies.
FIA_UID.2(2) User identification before any action
Hierarchical to: FIA_UID.1
FIA_UID.2.1(2) The TSF shall require each user to identify itself before allowing any other TSF-mediated actions on
behalf of that user.
Refinement: User -> Service technician
Dependencies: No dependencies.
FIA_UAU.2(1) User authentication before any action
Hierarchical to: FIA_UAU.1
FIA_UAU.2.1(1) The TSF shall require each user to be successfully authenticated before allowing any other
TSF-mediated actions on behalf of that user.
Refinement: User -> Key operator
Dependencies: FIA_UID.1 Timing of identification
FIA_UAU.2(2) User authentication before any action
Hierachical to： FIA_UAU.1
FIA_UAU.2.1(2) The TSF shall require each user to be successfully authenticated before allowing any other
TSF-mediated actions on behalf of that user.
Refinement: User -> Service technician
Dependencies: FIA_UID.1 Timing of identification
FIA_UAU.7(1) Protected authentication feedback
Hierarchical to: No other components.
FIA_UAU.7.1(1) The TSF shall provide only [assignment: list of feedback] to the user while the authentication is in
progress.
[assignment: list of feedback]
-For every entered character as the key operator password, one * is displayed at a time.
Dependencies: FIA_UAU.1 Timing of authentication
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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FIA_UAU.7(2) Protected authentication feedback
Hierarchical to: No other components.
FIA_UAU.7.1(2) The TSF shall provide only [assignment: list of feedback] to the user while the authentication is in
progress.
[assignment: list of feedback]
-For every entered character as the service technician password, one * is displayed at a time.
Dependencies: FIA_UAU.1 Timing of authentication
5.1.3. Class FMT: Security Management
FMT_MOF.1 Management of security functions behavior
Hierarchical to: No other components.
FMT_MOF.1.1 The TSF shall restrict the ability to [selection: determine the behavior of, disable, enable, modify the
behavior of] the functions [assignment: list of functions] to [assignment: the authorised identified roles].
[assignment: list of functions]
- Hard Disk Drive Overwriting Function for Residual Data
[selection: determine the behavior of, disable, enable, modify the behavior of]
- Determine the behavior of
- Disable
- Enable
[assignment: the authorised identified roles]
-Key operator, Service technician
The relationship between the roles and the selectable abilities of Hard Disk Drive Overwriting Functions
for Residual Data is shown in Table 8.
Table 8 Relationship between the roles and the selectable abilities of Hard Disk Drive Overwriting
Functions for Residual Data
Roles Abilities
Hard Disk Drive Overwriting Function for Residual Data
Key operator
Determines the behavior of the functions
Disables the functions
Enables the functions
Service technician Disables the functions
Dependencies: FMT_SMF.1 Specification of Management Functions
FMT_SMR.1 Security roles
FMT_MTD.1(1) Management of TSF data
Hierarchical to: No other components.
FMT_MTD.1.1(1) The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorised identified roles].
[assignment: list of TSF data]
- "Hard Disk Data Erasure Level"
Basic: Only the management information for the document data is deleted (initial setting).
Medium: Over the entire area of the document data, the data of all 0's are overwritten three times for
erasure.
High: Over the entire area of the document data, random data are overwritten twice and then all 0's are
overwritten once for erasure.
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]
-Query, modify
[assignment: the authorised identified roles]
-Key operator, Service technician
The relationship between the roles and the selectable abilities of "Hard Disk Data Erasure Level" is
shown in Table 9.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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Table 9 Relationship between the roles and the selectable abilities of "Hard Disk Data Erasure Level"
"Hard Disk Data Erasure Level"
Modify
Ability
Role
Query
Basic Medium High
Key operator ○ ○ ○ ○
Service technician × ○ × ×
Dependencies: FMT_SMF.1 Specification of Management Functions
FMT_SMR.1 Security roles
FMT_MTD.1(2) Management of TSF data
Hierarchical to: No other components.
FMT_MTD.1.1(2) The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorised identified roles].
[assignment: list of TSF data]
- "Key Operator Password"
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]
- modify, other operations: initialization (operation to return to the initial setting)
[assignment: the authorised identified roles]
-Key operator, Service technician
The relationship between the roles and the selectable abilities of "Key Operator Password" is shown in
Table 10.
Table 10 Relationship between the roles and the selectable abilities of "Key Operator Password"
"Key Operator Password"
Ability
Role Modify Other operations : Initialization
Key operator ○ ×
Service technician × ○
Dependencies: FMT_SMF.1 Specification of Management Functions
FMT_SMR.1 Security roles
FMT_MTD.1(3) Management of TSF data
Hierarchical to: No other components.
FMT_MTD.1.1(3) The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of TSF data] to [assignment: the authorised identified roles].
[assignment: list of TSF data]
- "Service Technician Password"
[selection: change_default, query, modify, delete, clear, [assignment: other operations]]
- modify, other operations: initialization (operation to return to the initial setting)
[assignment: the authorised identified roles]
-Service technician
Dependencies: FMT_SMF.1 Specification of Management Functions
FMT_SMR.1 Security roles
FMT_SMF.1 Specification of Management Functions
Hierarchical to: No other components.
FMT_SMF.1.1 The TSF shall be capable of performing the following security management functions: [assignment: list of
security management functions to be provided by the TSF].
[assignment: list of security management functions to be provided by the TSF]
Functions to manage the management items described in Table 11.
Dependencies: No dependencies.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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Table 11 Functions to Manage Management Items
Functional
requirement
Management requirement Management item and management function
FDP_RIP.1 Management of when to perform residual information
protection
Since the timing to perform residual information
protection is fixed to deallocation, there is no
management item.
FIA_AFL.1(1) Management of the threshold value for unsuccessful
authentication attempt, and management of actions
to be taken in the event of authentication failure
Since threshold value is fixed, and action is also
fixed, there is no management item.
FIA_AFL.1(2) Management of the threshold value for unsuccessful
authentication attempt, and management of actions to be
taken in the event of authentication failure
Since threshold value is fixed, and action is also
fixed, there is no management item.
FIA_SOS.1(1) Management of the metric used to verify the secrets Since the metric is fixed, there is no
management item.
FIA_SOS.1(2) Management of the metric used to verify the secrets Since the metric is fixed, there is no
management item.
FIA_UID.2(1) Management of user identification information Since the user identification information is fixed,
there is no management item.
FIA_UID.2(2) Management of user identification information Since the user identification information is fixed,
there is no management item.
FIA_UAU.2(1) Management of authentication data by key operator Key operator password
FIA_UAU.2(2) Management of authentication data by service technician Service technician password
FIA_UAU.7(1) No management requirements －
FIA_UAU.7(2) No management requirements －
FMT_MOF.1 Management of the group of roles that can interact with
the functions in the TSF
Since the roles of key operator and service
technician are fixed, there is no management
item.
FMT_MTD.1(1) Management of the group of roles that can interact with
the TSF data
Since the roles of key operator and service
technician are fixed, there is no management
item.
FMT_MTD.1(2) Management of the group of roles that can interact with
the TSF data
Since the roles of key operator and service
technician are fixed, there is no management
item.
FMT_MTD.1(3) Management of the group of roles that can interact with
the TSF data
Since the role of service technician is fixed to
one person, there is no management item
described here.
FMT_SMF.1 No management requirements －
FMT_SMR.1 Management of the user group that is a part of the
roles
Since the roles of key operator and service
technician are fixed, there is no management
item.
FPT_RVM.1 No management requirements －
FIT_SOS.1 Management of the metric used to verify the secrets of IT
environment
Since the metric is fixed, there is no
management item.
FIT_MTD.1 Management of the group of roles that can interact with
the Administrator data
Since the roles of key operator and service
technician are fixed, there is no management
item.
FMT_SMR.1 Security roles
Hierarchical to: No other components.
FMT_SMR.1.1 The TSF shall maintain the roles [assignment: the authorised identified roles].
[assignment: the authorised identified roles]
-Key operator, Service technician
FMT_SMR.1.2 The TSF shall be able to associate users with roles.
Dependencies： FIA_UID.1 Timing of identification
5.1.4. Class FPT: Protection of the TSF
FPT_RVM.1 Non-bypassability of the TSP
Hierarchical to: No other components.
FPT_RVM.1.1 The TSF shall ensure that TSP enforcement functions are invoked and succeed before each function
within the TSC is allowed to proceed.
Dependencies: No dependencies.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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5.1.5. New Security Functional Requirements
In this ST, new TOE Security Functional Requirements (FIT_SOS.1 Verification of secrets of IT Environment, FIT_MTD.1
Management of Administrator Data) are defined and used.
Administrator Data are the control data for IT environment security functions that can be accessed only by the key operator
and the service technician.
FIT_SOS.1 Verification of secrets of IT Environment requires the TSF to verify that secrets of IT environment meet
defined quality metrics.
Management: FIT_SOS.1
The following actions could be considered for the management functions in FMT:
a) the management of the metric used to verify the secrets of IT environment.
Audit: FIT_SOS.1
The following actions should be auditable if FAU_GEN Security audit data generation is included in the PP/ST.
a) Minimal: Rejection by the TSF of any tested secret of IT environment;
b) Basic: Rejection or acceptance by the TSF of any tested secret of IT environment;
c) Detailed: Identification of any changes to the defined quality metrics.
FIT_SOS.1 Verification of secrets of IT Environment
Hierarchical to: No other components.
FIT_SOS.1.1 The TSF shall provide a mechanism to verify that secrets of IT environment meet
[assignment: a defined quality metric].
Refinement: secrets of IT environment -> "Hard Disk Drive Lock Password"
[assignment: a defined quality metric]
The quality metric of "Hard Disk Drive Lock Password" is defined as follows.
- Character string from 8 to 32 characters
- Upper case alphabets, lower case alphabets, numerals, symbols
Dependencies: No dependencies.
FIT_MTD.1 Management of Administrator Data allows authorised users to manage Administrator Data.
Management: FIT_MTD.1
The following actions could be considered for the management functions in FMT:
a) managing the group of roles that can interact with the Administrator Data.
Audit: FIT_MTD.1
The following actions should be auditable if FAU_GEN Security audit data generation is included in the PP/ST.
a) Basic: Basic: All modifications to the values of Administrator Data.
FIT_MTD.1 Management of Administrator Data
Hierarchical to: No other components.
FIT_MTD.1.1 The TSF shall restrict the ability to [selection: change_default, query, modify, delete, clear, [assignment:
other operations]] the [assignment: list of Administrator Data] to [assignment: authorised identified roles].
[assignment: list of Administrator Data]
- "Hard Disk Drive Lock Password"
[selection: change default, query, modify, delete, clear, [assignment: other operations]]
- modify, delete, other operations: initialization (operation to return to the initial setting)
[assignment: authorised identified roles]
-Key operator, Service technician
The relationship between the roles and the selectable abilities of "Hard Disk Drive Lock Password" is
shown in Table 12.
Table 12 Relationship between the roles and the selectable abilities of "Hard Disk Drive Lock
Password"
Roles Abilities "Hard Disk Drive Lock Password"
Key operator modify, delete
Service technician Other operations : Initialization
"delete" refers to releasing the "Hard Disk Drive Lock Password."
Dependencies: FMT_SMF.1 Specification of Management Functions
FMT_SMR.1 Security roles
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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5.2. TOE Security Assurance Requirements
The evaluation assurance level of TOE is EAL2.
The EAL2 assurance requirements are shown in Table 13.
Table 13 EAL2 Assurance Requirements
Assurance class Assurance component
ID
Assurance components Dependencies
Configuration
management
ACM_CAP.2 Configuration items None
ADO_DEL.1 Delivery procedures None
Delivery and
operation ADO_IGS.1 Installation, generation, and start-up
procedures
AGD_ADM.1
ADV_FSP.1 Informal functional specification ADV_RCR.1
ADV_HLD.1 Descriptive high-level design ADV_FSP.1 ADV_RCR.1
Development
ADV_RCR.1 Informal correspondence
demonstration
None
AGD_ADM.1 Administrator guidance ADV_FSP.1
Guidance
documents AGD_USR.1 User guidance ADV_FSP.1
ATE_COV.1 Evidence of coverage ADV_FSP.1 ATE_FUN.1
ATE_FUN.1 Functional testing None
Tests
ATE_IND.2 Independent testing-sample ADV_FSP.1 AGD_ADM.1
AGD_USR.1 ATE_FUN.1
AVA_SOF.1 Strength of TOE security function
evaluation
ADV_FSP.1 ADV_HLD.1
Vulnerability
assessment
AVA_VLA.1 Developer vulnerability analysis ADV_FSP.1 ADV_HLD.1
AGD_ADM.1 AGD_USR.1
5.3. Security Functional Requirements for IT Environment
FIA_UID.2(IT) User identification before any action
Hierarchical to: FIA_UID.1
FIA_UID.2.1(IT) The TSF shall require each user to identify itself before allowing any other TSF-mediated actions on
behalf of that user.
Refinement: TSF -> Hard disk drive
Dependencies: No dependencies.
FIA_UAU.2(IT) User authentication before any action
Hierarchical to : FIA_UAU.1
FIA_UAU.2.1(IT) The TSF shall require each user to be successfully authenticated before allowing any other
TSF-mediated actions on behalf of that user.
Refinement: TSF -> Hard disk drive
Dependencies: FIA_UID.1 Timing of identification
5.4. TOE Security Function Strength
The minimum security functional strength of this TOE is SOF - Basic.
The functional requirements using probabilistic or permutational mechanism are:
- FIA_UID.2(1), FIA_UAU.2(1), FIA_UAU.7(1), FIA_AFL.1(1), FIA_SOS.1(1)
- FIA_UID.2(2), FIA_UAU.2(2), FIA_UAU.7(2), FIA_AFL.1(2), FIA_SOS.1(2)
And the strength of these indicated functional strength is SOF - Basic.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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6. TOE Summary Specification
6.1. TOE Security Functions
TOE has following security functions.
- Hard Disk Drive Overwriting Function for Residual Data (SF.OVWRT)
- Key Operator Authentication Function (SF.ADM_IA)
- Hard Disk Drive Lock Management Function (SF.HDMNG)
- Security Mode Operating Management Function (SF.ADMMNG)
- Service Technician Authentication Function (SF.SE_IA)
- Security Mode Maintenance Management Function (SF.SEMNG)
The relationship between each TOE security and security functional requirements is shown in Table 14.
Table 14 Relationship between TOE Security Functions and Security Functional Requirements
* SF.OVWRT SF.ADM_IA SF.HDMNG SF.ADMMNG SF.SE_IA SF.SEMNG
FDP_RIP.1 ○
FIA_AFL.1(1) ○
FIA_AFL.1(2) ○
FIA_SOS.1(1) ○
FIA_SOS.1(2) ○
FIA_UID.2(1) ○
FIA_UID.2(2) ○
FIA_UAU.2(1) ○
FIA_UAU.2(2) ○
FIA_UAU.7(1) ○
FIA_UAU.7(2) ○
FMT_MOF.1 ○ ○
FMT_MTD.1(1) ○ ○
FMT_MTD.1(2) ○ ○
FMT_MTD.1(3) ○
FMT_SMF.1 ○ ○
FMT_SMR.1 ○ ○
FPT_RVM.1 ○ ○ ○ ○ ○ ○
FIT_SOS.1 ○
FIT_MTD.1 ○ ○
* TOE security functions are shown horizontally, and security functional requirements are shown vertically.
6.1.1. Hard Disk Drive Overwriting Function for Residual Data (SF.OVWRT)
The purpose of this function is to overwrite and erase the data area of the residual document data stored on the hard disk
drive.
There are following methods to overwrite and erase:
- Basic: Only the management information for the document data is deleted.
- Medium: Over the entire area of the document data, the data of all 0's are overwritten three times and erased.
- High: Over the entire area of the document data, random values are overwritten twice and then all 0's are overwritten once
for erasing.
This function is executed in the following cases.
- General users are not required to be aware of this function, and the key operator will overwrite and erase the used document
data that develops at the points shown in Table 2, according to the "Hard Disk Data Erasure Level", Basic, Medium or High
which are set up by the Security Mode Operating Management Function.
- The key operator performs the overwriting and erasing from control panel, according to the method of Medium or High
instructed by "Hard Disk Initialization" in Security Mode Operating Management Function.
6.1.2. Key Operator Authentication Function (SF.ADM_IA)
This function restricts such operations as the setting data of "Hard Disk Drive Lock Password", "Key Operator Password",
"Hard Disk Data Erasure Level" that are provided by Hard Disk Drive Lock Management Function (SF.HDMNG) as well as
Security Mode Operating Management Function (SF.ADMMNG), and also the instruction of "Hard Disk Initialization" to be
performed only by the key operator.
Before allowing any operation or instruction, it checks the key operator password entered from the control panel and identifies
and authenticates that the operator is the key operator.
SF.ADM_IA authorizes no single operation or instruction of above mentioned operating management functions before
identifying and authenticating the key operator. When the key operator enters the password, each entered character is
displayed as the dummy character "*" at a time.
When the key operator enters the password correctly causing the authentication of key operator successful, the operation or
instruction of setting data will be authorized.
When the entered key operator password is incorrect causing the key operator authentication to fail, the result is notified by
the alert sound. When a failure of authentication happens once, the successive authentication will be withheld for one second,
and after the one second the next round of authentication interface will be reopened.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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6.1.3. Hard Disk Drive Lock Management Function (SF.HDMNG)
This function is for the key operator to manage the hard disk drive lock, and it authorizes and executes the setup and
modification of "Hard Disk Drive Lock Password" and the release of drive lock, only when the key operator is identified and
authorized by SF.ADM_IA.
The setup and modification function of "Hard Disk Drive Lock Password" verifies if the "Hard Disk Drive Lock Password"
entered by the key operator is within the limit of following rule.
- Character string from 8 to 32 characters
- Upper case alphabets, lower case alphabets, numerals, symbols
Upon the verification of permissible limit, if the password is conformant to the rule, the drive lock password in the Digital
Imaging System and the hard disk drive will be set up or modified.
If not conformant to the rule, the result is notified by the alert sound and the setup/modification is rejected.
The release of drive lock of "Hard Disk Drive Lock Password" is initiated by the key operator's action from the control panel to
select and instruct the lock release, and if the hard disk drive already had the "Hard Disk Drive Lock Password" set up, the
password in the Digital Imaging System's memory and hard disk drive will be released and take the "unsetup" condition.
At the startup time, Digital Imaging System sends the "Hard Disk Drive Lock Password" to the hard disk drive, requesting to
identify and authenticate itself.
6.1.4. Security Mode Operating Management Function (SF.ADMMNG)
This function is the management function for key operator to conduct operations, and it authorizes and executes the
setup/modification of "Key Operator Password", the setup/modification of "Hard Disk Data Erasure Level" and the instruction
of "Hard Disk Initialization" only when the key operator is identified and authenticated by SF.ADM_IA.
The setup and modification function of "Key Operator Password" verifies if the "Key Operator Password" entered by the key
operator is within the limit of following rule.
- Character length fixed to 8
- Upper case alphabets, lower case alphabets, numerals, symbols
- A string of same 8 characters is prohibited.
Upon the verification of the limit, if the password is conformant to the rule, the key operator password is set up or modified.
If not conformant to the rule, the result is notified by the alert sound and the setup/modification is rejected.
The setup and modification of the "Hard Disk Data Erasure Level" is carried out in such a manner that the currently selected
overwriting and erasing method is shown on the control panel first, the new method is selected from the control panel, and
finally the newly selected overwriting and erasing method is displayed for confirmation.
For the setup and modification of "Hard Disk Data Erasure Level", one from following methods can be selected.
- Basic: Only the management information for the document data is deleted.
- Medium: Over the entire area of the document data, the data of all 0's are overwritten three times for erasure.
- High: Over the entire area of the document data, random values are overwritten twice and then all 0's are overwritten once
for erasure.
The key operator can determine the behavior of Hard Disk Drive Overwriting for Residual Data as mentioned above, and also
stop the Hard Disk Drive Overwriting Function for Residual Data by setting "Hard Disk Data Erasure Level" to Basic.
"Hard Disk Initialization" enables the key operator to select and instruct the overwriting method from the control panel, have
the selected method displayed, initiate the Hard Disk Drive Overwriting Function for Residual Data, and complete the
overwriting for erasure.
To instruct "Hard Disk Initialization", one from following methods can be selected.
- Medium: Over the entire area of the document data, the data of all 0's are overwritten three times for erasure.
- High: Over the entire area of the document data, random values are overwritten twice and then all 0's are overwritten once
for erasure.
6.1.5. Service Technician Authentication Function (SF.SE_IA)
This function enables only the authenticated service technician to manipulate the setup data of "Service Technician
Password" that is offered by Security Mode Maintenance Management Function (SF.SEMNG) and also to instruct "System
Initialization".
Before allowing any operation or instruction, it checks the service mode setup procedure entered from the control panel as
well as the service technician password, and identifies and authenticates that the operator is a service technician.
SF.SE_IA authorizes no single operation or instruction of security mode maintenance management functions (SF.SEMNG)
before identifying and authenticating the service technician.
When the service technician enters the password, each entered character is displayed as the dummy character "*" at a time.
When the service technician enters the password correctly causing the authentication of service technician successful, the
operation or instruction of setting data will be authorized.
When the entered service technician password is incorrect causing the key operator authentication to fail, the result is notified
by the alert sound.
When a failure of authentication happens once, the successive authentication will be withheld for one second, and after the
one second the next round of authentication interface will be reopened.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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6.1.6. Security Mode Maintenance Management Function (SF.SEMNG)
This function is for service technician to carry out the management functions for maintenance works, and it authorizes and
executes the setup/modification of "Service Technician Password" as well as the instruction of "System Initialization" only
when an operator is identified and authenticated as service technician by SF.SE_IA.
The setup and modification function of "Service Technician Password" verifies if the password entered by the service
technician is within the limit of following rule.
- Character length fixed to 8
- Upper case alphabets, lower case alphabets, numerals, symbols
- A string of same 8 characters is prohibited.
Upon the verification of the limit, if the password is conformant to the rule, the service technician password is set up or
modified.
If not conformant to the rule, the result is notified by the alert sound and the setup/modification is rejected.
"System Initialization" is executed by instructing "System Initialization" displayed on the control panel, and initializes such
settings as "Hard Disk Drive Lock Password", "Hard Disk Data Erasure Level", "Key Operator Password" and "Service
Technician Password," returning each setting to the initial setting.
By "System Initialization", "Hard Disk Data Erasure Level" returns to Basic, stopping the Hard Disk Drive Overwriting Function
for Residual Data.
6.2. Security Function Strength
Probabilistic or permutational mechanism is being used in Key Operator Authentication Function (SF.ADM_IA) and Service
Technician Authentication Function (SF.SE_IA).
The security function strength of this TOE claims SOF-basic.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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6.3. Assurance Measures
The documents that give the assurance measures to each component of the security assurance requirements in this ST are
shown in Table 15.
Table 15 Assurance Measures
Assurance
component ID
Assurance components Assurance measures
Data Security Kit DA-SC06 Configuration Management Plan
ACM_CAP.2 Configuration items
Data Security Kit DA-SC06 Configuration List
ADO_DEL.1 Delivery procedure Data Security Kit DA-SC06 Delivery Procedures
ADO_IGS.1 Installation, generation and
start-up procedures
- Operating Instructions Data Security Kit DA-SC06(in Japanese)
- Installation Instructions for service technicians Data Security Kit
DA-SC06(in Japanese)
- Service Manual Digital Imaging Systems DP-8032 / 8025(in
Japanese)
- Operating Instructions Data Security Kit DA-SC06
- Installation Instructions for service technicians Data Security Kit
DA-SC06
- Service Manual Digital Imaging Systems DP-8032 / 8025
ADV_FSP.1 Informal functional specification Data Security Kit DA-SC06 Functional Specification
ADV_HLD.1 Descriptive high-level design Data Security Kit DA-SC06 Design Specification
ADV_RCR.1 Informal correspondence
demonstration
Data Security Kit DA-SC06 Functional Correspondence Description
AGD_ADM.1 Administrator guidance - Operating Instructions(For Basic Operations)
Digital Imaging Systems DP-8032P / 8025P DP-8032V / 8025V
DP-8032VA / 8025VA (in Japanese)
- Operating Instructions Data Security Kit DA-SC06(in Japanese)
- Installation Instructions for Service Technicians
Data Security Kit DA-SC06(in Japanese)
- Service Manual Digital Imaging Systems DP-8032 / 8025 (in
Japanese)
- Operating Instructions(For Copy & Network Scan Functions)
Digital Imaging Systems DP-8032 / 8025
- Operating Instructions Data Security Kit DA-SC06
- Installation Instructions for Service Technicians
Data Security Kit DA-SC06
- Service Manual Digital Imaging Systems DP-8032 / 8025
AGD_USR.1 User guidance - Operating Instructions(For Basic Operations)
Digital Imaging Systems DP-8032P / 8025P DP-8032V / 8025V
DP-8032VA / 8025VA (in Japanese)
- Operating Instructions Data Security Kit DA-SC06(in Japanese)
- Operating Instructions(For Copy & Network Scan Functions)
Digital Imaging Systems DP-8032 / 8025
- Operating Instructions Data Security Kit DA-SC06
ATE_COV.1 Evidence of coverage
ATE_FUN.1 Functional testing
Data Security Kit DA-SC06 Test Plan and Report
ATE_IND.2 Independent testing-sample TOE
AVA_SOF.1 Strength of TOE security function
evaluation
Data Security Kit DA-SC06 Security Function Strength Analysis
AVA_VLA.1 Developer vulnerability analysis Data Security Kit DA-SC06 Vulnerability Analysis
7. PP Claims
This TOE does not conform to PP.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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8. Rationale
8.1. Rationale for Security Objectives
Correspondence between security objectives and threats, organizational security policies and assumptions are described in
Table 16.
Table 16 Correspondence between security objectives and threats, organizational security policies and assumptions
* T.RECOVER P.OWMETHOD A.SETSEC A.ADMIN A.SE
O.HDLMNG ○
O.RESIDUAL ○
OE.AUTH ○ ○
OE.ADMIN ○
OE.SE ○
OE.HDD ○
*: Threats, organizational security policies and assumptions are shown horizontally, and security objectives are shown vertically.
○: Indicates the threats and assumptions that the corresponding security objectives counter or support.
As shown in Table 16, every security objective supports/counters one or more threats, organizational policies and/or
assumptions. Table 16 also shows that all threats, organizational policies and assumptions are supported or countered by
some security objective.
By satisfying the corresponding security objectives, the threats are countered, the organizational security policies are
achieved, and the assumptions are assured.
The rationale showing that the measures against threats, organizational security policies and assumptions are taken is
shown below.
T.RECOVER
To counter the threat T.RECOVER, recovery of the used document data which had been already stored on the hard disk
drive must be made impossible. To achieve this, only the authenticated key operator is allowed to set up the "Hard Disk
Drive Lock Password" on the hard disk drive, and to operate the TOE.
The hard disk drive model must have the function to prohibit any access to the document data inside the drive unless the
correct "Hard Disk Drive Lock Password" is entered using OE.HDD, and only the key operator authenticated by
O.HDLMNG can set up the "Hard Disk Drive Lock Password" on the hard disk drive, the mechanism of which makes the
access to the used document data impossible.
Therefore, any attempt to access to the used document data using PCs or tools will not recover the used document data
unless exactly the same password is entered as the hard disk drive lock password set up on the hard disk drive.
Above counter measures will assure that the residual document data which had been already stored on the hard disk drive
is protected against any illicit attempt to recover it.
P.OWMETHOD
To achieve the organizational security policy P.OWMETHOD, it is necessary to operate the TOE with the "Hard Disk Data
Erasure Level" set at Medium or High, which overwrites and erases the data area of the hard disk drive where the used
document data is stored. Furthermore, O.RESIDUAL provides, not only the Basic level that does not overwrite to erase, but
also Medium and High of "Hard Disk Data Erasure Level" for overwriting and erasing residual document data stored on the
hard disk drive, and by the key operator setting up the "Hard Disk Data Erasure Level" to Medium or High under OE.AUTH
at all times except for maintenance time, the data area of residual document data stored on the hard disk drive is
overwritten and erased always in the operation mode.
By above security objectives, P.OWMETHOD can be realized.
A.SETSEC
The assumption A.SETSEC assumes that key operator enables TOE security functions and sets up "Hard Disk Drive Lock
Password" for operation. Therefore key operator uses operating management function by OE.AUTH and sets up "Hard Disk
Drive Lock Password" to operate, except for maintenance time. By this setup, A.SETSEC can be realized.
A.ADMIN
Assumption A.ADMIN assumes that key operator is a credible person. For this reason, under OE.ADMIN, the person in
charge needs to understand the role of key operator, take prudent step for appointment of the key operator, and provide
adequate education so that the key operator can learn how to manage to execute the tasks and learn the necessary
knowledge. By this setup, A.ADMIN can be realized.
A.SE
The assumption A.SE assumes that the service technician (an employee of the company which undertakes the
maintenance of Digital Imaging System DP-8032 / 8025) is a credible person. Therefore when a service technician
performs the maintenance of Digital Imaging System DP-8032 / 8025, the person in charge or the key operator needs under
OE.SE to confirm the service technician is the employee of the company which undertakes the maintenance of Digital
Imaging System DP-8032 / 8025. By this setup, A.SE can be realized.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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8.2. Rationale for Security Requirements
8.2.1. Rationale for Security Function Requirements
8.2.1.1. Reason to Introduce Security Function Requirement FIT_SOS.1 and FIT_MTD.1
Reason to Introduce FIT_SOS.1: Verification of secrets of IT Environment and FIT_MTD.1: Management of Administrator
Data is shown below.
Administrator Data are the control data for IT environment security functions that can be accessed only by the key operator
and the service technician.
The control for the verification of secrets of IT environment and IT environment security function are performed under the
TOE security function requirements.
In order for OE.HDD to be able to execute authentication correctly, it is necessary to protect Hard Disk Drive Lock
Password from being illicitly modified or erased, which requires TOE security function requirements.
Hard Disk Drive Lock Password is not only the TSF data of hard disk drive in IT environment but also the secret of IT
environment, and is at the same time the user data from the view of TOE. It also has the character of TSF data that only
key operator or service technician can operate.
This kind of data can neither be handled by FIA/FMT class of TOE, nor is the object of access control from the general
users.
Also, since such data would always be authorized by FDP_ACC/FDP_ACF, these cannot handle such data.
Therefore it is necessary to define the new function requirements that have the administrative characteristics.
FIT_SOS.1 and FIT_MTD.1 have been introduced using FIA_SOS.1 and FMT_MTD.1 as the reference respectively.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
- 30 -
8.2.1.2. Relationship between Security Function Requirements and Security Objectives
Table 17 shows the relationship between security function requirements and security objectives.
Table 17 Relationship between Security Function Requirements and Security Objectives
*1 O.HDLMNG O.RESIDUAL OE.HDD
FDP_RIP.1 ○
FIA_AFL.1(1) ○ ○
FIA_AFL.1(2) ○ ○
FIA_SOS.1(1) ○ ○
FIA_SOS.1(2) ○ ○
FIA_UID.2(1) ○ ○
FIA_UID.2(2) ○ ○
FIA_UAU.2(1) ○ ○
FIA_UAU.2(2) ○ ○
FIA_UAU.7(1) ○ ○
FIA_UAU.7(2) ○ ○
FMT_MOF.1 ○
FMT_MTD.1(1) ○
FMT_MTD.1(2) ○ ○
FMT_MTD.1(3) ○ ○
FMT_SMF.1 ○ ○
FMT_SMR.1 ○ ○
FPT_RVM.1 ○ ○
FIT_SOS.1 ○
FIT_MTD.1 ○
FIA_UID.2(IT)*2 ○
FIA_UAU.2(IT)*2 ○
*1: Security objectives are shown horizontally, and security function requirements are shown vertically.
*2: Indicates security function requirements of IT environment, others indicate TOE security function requirements.
○: Indicates the security objective that the corresponding security function requirement supports.
As shown in Table 17, every security function requirement is supported by some security objectives.
Also, as shown in Table 17, every security objective corresponds to some of the security function requirements.
Following shows the rationale that all security objectives are assured for counter measures by functional requirements.
O.HDLMNG
By identifying and authenticating key operator using FIA_UID.2(1) and FIA_UAU.2(1), the operation to follow can be
assured to come from the legitimate key operator. Under FIA_AFL.1(1) when the key operator fails the authentication once,
the consecutive authentication will be withheld for more than one second, which can reduce the possible number of
consecutive attacks. By FIA_UAU.7(1), each time the password is entered, each entered character will be displayed by "*"
to hide the password. By FMT_MTD.1(2), only key operator is allowed to modify "Key Operator Password", reducing the
possibility of matching the password by illicit attacks. Also by FIA_SOS.1(1), when the key operator password is set up or
modified, the entered password is verified if it agrees with the defined rule.
FMT_SMF.1 provides the security management function to manage the key operator password described above.
By FIT_MTD.1, modification and erasure of Hard Disk Drive Lock Password is restricted to key operator, and when the
Hard Disk Drive Lock Password is set up or modified, FIT_SOS.1 verifies if the entered password conforms to the defined
rule of password.
To prohibit the illicit initialization (i.e. returning to the initial setting) of key operator password, service technician password
and Hard Disk Drive Lock Password, the initialization of "key operator password" in FMT_MTD.1(2), the initialization of
"Service Technician Password" in FMT_MTD.1(3), and the initialization of "Hard Disk Drive Lock Password" in FIT_MTD.1
restrict the operations to service technician only.
To ensure the secure initializations above, the service technician at work is identified and authenticated. By identifying and
authenticating the service technician using FIA_UID.2(2) and FIA_UAU.2(2), the operation to follow can be assured to
come from the legitimate service technician. Under FIA_AFL.1(2) when the service technician fails the authentication once,
the consecutive authentication will be withheld for more than one second, which can reduce the possible number of
consecutive attacks.
By FIA_UAU.7(2), each time the password is entered, each entered character will be displayed by "*" to hide the password.
By FMT_MTD.1(3), only service technician is allowed to modify or initialize "Service Technician Password", reducing the
possibility of matching the password by illicit attacks. Also by FIA_SOS.1(2), when the service technician password is set
up or modified, the entered password is verified if it agrees with the defined rule.
FMT_SMF.1 provides the security management function to manage the service technician password described above.
By FMT_SMR.1, the roles of key operator and service technician are maintained.
By FPT_RVM.1, TOE security functions are assuredly invoked, and will never be bypassed.
By above security functional requirements, TOE allows only the key operator to set up the "Hard Disk Drive Lock Password"
on the hard disk drive, realizing the security objective O.HDLMNG to disable the recovery of the used document data which
had been already stored on the hard disk drive.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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O.RESIDUAL
By FMT_MTD.1(1), query and modification of "Hard Disk Data Erasure Level" are restricted to key operator, who is enabled
to set up Basic, Medium and High of "Hard Disk Data Erasure Level."
(Note, however, that modifying "Hard Disk Data Erasure Level" to Basic using "System Initialization" function only can also
be done by service technician.)
To ensure the modification above assuredly, the key operator at work is identified and authenticated. By identifying and
authenticating key operator using FIA_UID.2(1) and FIA_UAU.2(1), the operation to follow can be assured to come from the
legitimate key operator. Under FIA_AFL.1(1) when the key operator fails the authentication once, the consecutive
authentication will be withheld for more than one second, which can reduce the possible number of consecutive attacks. By
FIA_UAU.7(1), each time the password is entered, each entered character will be displayed by "*" to hide the password.
By FMT_MTD.1(2), only key operator is allowed to modify "Key Operator Password", reducing the possibility of matching
the password by illicit attacks. Also by FIA_SOS.1(1), when the key operator password is set up or modified, the entered
password is verified if it agrees with the defined rule.
FMT_SMF.1 provides the security management function to manage the key operator password described above.
To prohibit the illicit initialization of "Key Operator Password", "Service Technician Password" and "Hard Disk Data Erasure
Level", the initialization of "key operator password" in FMT_MTD.1(2), the initialization of "Service Technician Password" in
FMT_MTD.1(3), and the initialization of "Hard Disk Data Erasure Level"(i.e. modification to Basic by "System Initialization")
in FMT_MTD.1(1) restrict the operations to service technician only.
To ensure the secure initializations above, the service technician at work is identified and authenticated. By identifying and
authenticating the service technician using FIA_UID.2(2) and FIA_UAU.2(2), the operation to follow can be assured to
come from the legitimate service technician. Under FIA_AFL.1(2) when the service technician fails the authentication once,
the consecutive authentication will be withheld for more than one second, which can reduce the possible number of
consecutive attacks.
By FIA_UAU.7(2), each time the password is entered, each entered character will be displayed by "*" to hide the password.
By FMT_MTD.1(3), only service technician is allowed to modify or initialize "Service Technician Password", reducing the
possibility of matching the password by illicit attacks. Also by FIA_SOS.1(2), when the service technician password is set
up or modified, the entered password is verified if it agrees with the defined rule.
FMT_SMF.1 provides the security management function to manage the service technician password described above.
Since FMT_MOF.1 restricts the operation of Hard Disk Drive Overwriting Function for Residual Data as it is one of the
security functions to key operator and service technician, only key operator and service technician can set up or instruct the
Hard Disk Drive Overwriting Function for Residual Data.
By FMT_SMR.1, the roles of key operator and service technician are maintained.
By FDP_RIP.1, any contents of information in the residual document data stored on the hard disk drive are made unusable.
By FPT_RVM.1, TOE security functions are assuredly invoked, and will never be bypassed.
By above security functional requirements, TOE provides not only the Basic level that does not overwrite and erase, but
also two types of overwriting and erasing functions, Medium and High, for Hard Disk Drive Overwriting Function for
Residual Data, realizing the security objectives O.RESIDUAL.
OE.HDD
By FIA_UID.2(IT) and FIA_UAU.2(IT), hard disk drive allow the access only from the TOE which succeeds identification and
authentication.
This realizes OE.HDD that prohibits illicit accesses to hard disk drive.
8.2.1.3. Appropriateness of Security Requirements by Adding Security Functional Requirement FIT_SOS.1
and FIT_MTD.1
FIT_SOS.1 has essentially the same meaning as FIA_SOS.1 except that "secrets" of FIA_SOS.1 is changed to "secrets of
IT environment "; likewise FIT_MTD.1 has essentially the same meaning as FMT_MTD.1 except that "TSF data" in
FMT_MTD.1 is changed to "Administrator Data." Therefore adding FIT_SOS.1 and FIT_MTD.1 will not require specific
functional requirements and the same security requirements as FIA_SOS.1 and FMT_MTD.1 can hold.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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8.2.2. Dependencies of Security Functional Requirements
Table 18 shows the dependency relationship of security functional requirements. When the dependency defined by CC Part 2
is not satisfied, the reason is described in the column of "Dependency in this ST."
Table 18 Dependency of Functional Requirements
Functional
requirement
Dependency required by CC Dependency in this ST
FDP_RIP.1 None None
FIA_AFL.1(1) FIA_UAU.1 FIA_UAU.2(1)
Description: Since FIA_UAU.2 is the security functional
requirement that is an upper hierarchy of FIA_UAU.1, the
dependency to FIA_UAU.1 is satisfied.
FIA_AFL.1(2) FIA_UAU.1 FIA_UAU.2(2)
Description: Since FIA_UAU.2 is the security functional
requirement that is an upper hierarchy of FIA_UAU.1, the
dependency to FIA_UAU.1 is satisfied.
FIA_SOS.1(1) None None
FIA_SOS.1(2) None None
FIA_UID.2(1) None None
FIA_UID.2(2) None None
FIA_UAU.2(1) FIA_UID.1 FIA_UID.2(1)
Description: Since FIA_UID.2 is the security functional
requirement that is an upper hierarchy of FIA_UID.1, the
dependency to FIA_UID.1 is satisfied.
FIA_UAU.2(2) FIA_UID.1 FIA_UID.2(2)
Description: Since FIA_UID.2 is the security functional
requirement that is an upper hierarchy of FIA_UID.1, the
dependency to FIA_UID.1 is satisfied.
FIA_UAU.7(1) FIA_UAU.1 FIA_UAU.2(1)
Description: Since FIA_UAU.2 is the security functional
requirement that is an upper hierarchy of FIA_UAU.1, the
dependency to FIA_UAU.1 is satisfied.
FIA_UAU.7(2) FIA_UAU.1 FIA_UAU.2(2)
Description: Since FIA_UAU.2 is the security functional
requirement that is an upper hierarchy of FIA_UAU.1, the
dependency to FIA_UAU.1 is satisfied.
FMT_MOF.1 FMT_SMF.1, FMT_SMR.1 FMT_SMF.1, FMT_SMR.1
FMT_MTD.1(1) FMT_SMF.1, FMT_SMR.1 FMT_SMF.1, FMT_SMR.1
FMT_MTD.1(2) FMT_SMF.1, FMT_SMR.1 FMT_SMF.1, FMT_SMR.1
FMT_MTD.1(3) FMT_SMF.1, FMT_SMR.1 FMT_SMF.1, FMT_SMR.1
FMT_SMF.1 None None
FMT_SMR.1 FIA_UID.1 FIA_UID.2(1), FIA_UID.2(2)
Description: Since FIA_UID.2 is the security functional
requirement that is an upper hierarchy of FIA_UID.1, the
dependency to FIA_UID.1 is satisfied.
FPT_RVM.1 None None
FIT_SOS.1 None None
FIT_MTD.1 FMT_SMF.1, FMT_SMR.1 FMT_SMF.1, FMT_SMR.1
FIA_UID.2(IT) * None None
FIA_UAU.2(IT) * FIA_UID.1(IT) FIA_UID.2(IT)
Description: Since FIA_UID.2 is the security functional
requirement that is an upper hierarchy of FIA_UID.1, the
dependency to FIA_UID.1 is satisfied.
*: Indicates security functional requirements of IT environment, others indicate TOE security functional requirements.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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8.2.3. Interactions among Security Functional Requirements
Table 19 shows the interaction relationship among security functional requirements.
Table 19 Interactions among Security Functional Requirements
Security functional requirements Circumvention Deactivation
FDP_RIP.1 FPT_RVM.1 FMT_MOF.1
FIA_AFL.1(1) FPT_RVM.1 －
FIA_AFL.1(2) FPT_RVM.1 －
FIA_SOS.1(1) FPT_RVM.1 －
FIA_SOS.1(2) FPT_RVM.1 －
FIA_UID.2(1) FPT_RVM.1 －
FIA_UID.2(2) FPT_RVM.1 －
FIA_UAU.2(1) FPT_RVM.1 －
FIA_UAU.2(2) FPT_RVM.1 －
FIA_UAU.7(1) FPT_RVM.1 －
FIA_UAU.7(2) FPT_RVM.1 －
FMT_MOF.1 FPT_RVM.1 －
FMT_MTD.1(1) FPT_RVM.1 －
FMT_MTD.1(2) FPT_RVM.1 －
FMT_MTD.1(3) FPT_RVM.1 －
FMT_SMF.1 － －
FMT_SMR.1 － －
FPT_RVM.1 － －
FIT_SOS.1 FPT_RVM.1 －
FIT_MTD.1 FPT_RVM.1 －
8.2.3.1. Circumvention
FPT_RVM.1
Since FIA_UID.2(1), FIA_UAU.2(1) and FIA_UAU.7(1) controlling key operator identification and authentication mandates
the execution of key operator identification and authentication before key operator uses any security related operating
management function, user identification before action, user authentication before action or protected authentication
feedback can never be circumvented. FIA_AFL.1(1) controlling the handling for failed authentication is always invoked at
such failure, and therefore can never be circumvented.
Since FIA_UID.2(2), FIA_UAU.2(2) and FIA_UAU.7(2) controlling service technician identification and authentication
mandates the execution of service technician identification and authentication before service technician uses any security
related maintenance management function, user identification before action, user authentication before action or
protected authentication feedback can never be circumvented. FIA_AFL.1(2) controlling the handling for failed
authentication is always invoked at such failure, and therefore can never be circumvented.
FDP_RIP.1 controlling residual data protection is invoked every time the used document data develops and "Hard Disk
Initialization" is executed by the instruction from key operator, and can never be circumvented.
FIA_SOS.1(1) and FIA_SOS.1(2) controlling the verification of secrets can never be circumvented because the former is
invoked every time "Key Operator Password" is set up or modified, and the latter is invoked every time "Service
Technician Password" is set up or modified. FMT_MTD.1(1) and FMT_MTD.1(2) can never be circumvented because
they are invoked every time "Hard Disk Data Erasure Level" and "Key Operator Password" are modified or initialized.
Likewise, FMT_MTD.1(3) controlling the management of TSF data can never be circumvented because it is invoked
every time "Service Technician Password" is modified or initialized.
FMT_MOF.1 controlling the security function behavior can never be circumvented because it is invoked every time "Hard
Disk Data Erasure Level" is set up or modified after key operator identification and authentication, "Hard Disk Drive
Initialization" is instructed, and "Hard Disk Data Erasure Level" is initialized by service technician.
FIT_SOS.1 the verification of secrets of IT environment can never be circumvented because it is invoked every time
"Hard Disk Drive Lock Password" is set up or modified after key operator is identified and authenticated. FIT_MTD.1
controlling the management of administrator data also can never be circumvented because it is invoked every time "Hard
Disk Drive Lock Password" is set up or modified after key operator is identified and authenticated, and "Hard Disk Drive
Lock Password" is initialized after service technician is identified and authenticated.
8.2.3.2. Deactivation
FMT_MOF.1
FMT_MOF.1 restricts the deactivation role of Hard Disk Drive Overwriting Function for Residual Data (FDP_RIP.1) to key
operator and service technician.
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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8.2.3.3. Corruption
This TOE authorizes only key operator and service technician to management of security functions behaviors. Therefore there
can be no illicit subjects, and there is no needs to perform the access control either. Accordingly TSF cannot be corrupted by
illicit subjects.
8.2.3.4. Detection of Attacks Aiming at Defeasance
Since this TOE uses FPT_RVM.1 to limit the use of operating management functions to the licit key operator, and the use of
maintenance management functions to the licit service technician, requirements of FAU class concerning audit are not
necessary.
8.2.4. Validity of Security Function Strength Level
Attack capability of the attackers assumed for this TOE is low level. Therefore, "SOF-basic" being the security function
strength level is appropriate.
The security function strength is satisfied because all the probabilistic and permutational mechanisms are SOF-basic.
8.2.5. Rationale for Security Assurance Requirements
This TOE is assumed to be used in offices and public facilities, and used by limited users. Also the capabilities of attackers
are assumed to be low. Therefore evaluation assurance level of EAL2 is appropriate.
8.3. Rationale for TOE Summary Specification
8.3.1. Rationale for Function Summary Specification
Correspondence between TOE security functions and security functional requirements is shown in Table 20.
Table 20 Correspondence between TOE Security Functions and Security Functional Requirements
* SF.OVWRT SF.ADM_IA SF.HDMNG SF.ADMMNG SF.SE_IA SF.SEMNG
FDP_RIP.1 ○
FIA_AFL.1(1) ○
FIA_AFL.1(2) ○
FIA_SOS.1(1) ○
FIA_SOS.1(2) ○
FIA_UID.2(1) ○
FIA_UID.2(2) ○
FIA_UAU.2(1) ○
FIA_UAU.2(2) ○
FIA_UAU.7(1) ○
FIA_UAU.7(2) ○
FMT_MOF.1 ○ ○
FMT_MTD.1(1) ○ ○
FMT_MTD.1(2) ○ ○
FMT_MTD.1(3) ○
FMT_SMF.1 ○ ○
FMT_SMR.1 ○ ○
FPT_RVM.1 ○ ○ ○ ○ ○ ○
FIT_SOS.1 ○
FIT_MTD.1 ○ ○
*: TOE security functions are shown horizontally, and security functional requirements are shown vertically.
○: Indicates the TOE security function that the corresponding security function requirement supports.
Following shows the rationale for correspondences between TOE security functions and security functional requirements.
FDP_RIP.1
At the time when used document data develops as shown in Table 2, SF.OVWRT automatically overwrites and erases the
data area of used document data stored on the hard disk drive three times, and when the key operator instructs "Hard Disk
Initialization" to be executed, it overwrites and erases the entire data area of document data three times.
By above setup, FDP_RIP.1 is satisfied.
FIA_AFL.1(1)
When key operator fails in authentication once, SF.ADM_IA denies the next authentication from the key operator for one
second, which satisfies FIA_AFL.1(1).
FIA_AFL.1(2)
When service technician fails in authentication once, SF.SE_IA denies the next authentication from the service technician
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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for one second, which satisfies FIA_AFL.1(2).
FIA_SOS.1(1)
When key operator sets up or modifies the password, SF.ADMMNG verifies if the operation conforms to the defined rule of
password, which satisfies FIA_SOS.1(1).
FIA_SOS.1(2)
When service technician sets up or modifies the password, SF.SEMNG verifies if the operation conforms to the defined rule
of password, which satisfies FIA_SOS.1(2).
FIA_UID.2(1)
SF.ADM_IA satisfies FIA_UID.2(1) by executing the identification of key operator.
FIA_UID.2(2)
SF.SE_IA satisfies FIA_UID.2(2) by executing the identification of service technician.
FIA_UAU.2(1)
SF.ADM_IA satisfies FIA_UAU.2(1) by executing the authentication of key operator.
FIA_UAU.2(2)
SF.SE_IA satisfies FIA_UAU.2(2) by executing the authentication of service technician.
FIA_UAU.7(1)
SF.ADM_IA satisfies FIA_UAU.7(1) by displaying "*" each time one character of password is entered at the time of key
operator authentication.
FIA_UAU.7(2)
SF.SE_IA satisfies FIA_UAU.7(2) by displaying "*" each time one character of password is entered at the time of service
technician authentication.
FMT_MOF.1
SF.ADMMNG and SF.SEMNG satisfy FMT_MOF.1 by the fact that the former authorizes identified and authenticated key
operator only to determine the behavior, disable and enable of Hard Disk Drive Overwriting Function for Residual Data, and
the latter authorizes identified and authenticated service technician only to disable of Hard Disk Drive Overwriting Function
for Residual Data.
FMT_MTD.1(1)
SF.ADMMNG and SF.SEMNG satisfy FMT_MTD.1(1) by the fact that the former authorizes the identified and authenticated
key operator only to query or modify "Hard Disk Data Erasure Level" and the latter authorizes the identified and
authenticated service technician only to initialize "Hard Disk Data Erasure Level."
FMT_MTD.1(2)
SF.ADMMNG and SF.SEMNG satisfy FMT_MTD.1(2) by the fact that the former authorizes the identified and authenticated
key operator only to modify "Key Operator Password" and the latter authorizes the identified and authenticated service
technician only to initialize "Key Operator Password."
FMT_MTD.1(3)
SF.SEMNG satisfies FMT_MTD.1(3) by authorizing the identified and authenticated service technician only to modify and
initialize "Service Technician Password."
FMT_SMF.1
SF.ADMMNG and SF.SEMNG satisfy FMT_SMF.1 by the fact that the former provides security management function to
manage "Key Operator Password" and the latter provides the security management function to manage "Service
Technician Password."
FMT_SMR.1
SF.ADMMNG and SF.SEMNG satisfy FMT_SMR.1 by the former maintaining the role of key operator and the latter
maintaining the role of service technician.
FPT_RVM.1
SF.OVWRT, SF.ADM_IA, SF.HDMNG, SF.ADMMNG, SF.SE_IA and SF.SEMNG satisfy FPT_RVM.1 by being executed
always without any circumvention.
FIT_SOS.1
SF.HDMNG satisfies FIT_SOS.1 by the fact that when "Hard Disk Drive Lock Password" is set up or modified, it verifies if
the operation conforms to the defined rule of password.
FIT_MTD.1
SF.HDMNG and SF.SEMNG satisfy FIT_MTD.1 by the fact that the former authorizes the identified and authenticated key
operator only to modify or delete "Hard Disk Drive Lock Password" and the latter authorizes the identified and authenticated
service technician only to initialize "Hard Disk Drive Lock Password."
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
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8.3.2. Rationale for TOE Security Function Strength
As described in 6.2. Security Function Strength, probabilistic or permutational mechanism is being used in Key Operator
Authentication Function (SF.ADM_IA) and Service Technician Authentication Function (SF.SE_IA).
The security function strength of this TOE is SOF-basic, and it satisfies SOF-basic claimed in 5.4. TOE Security Function
Strength.
8.3.3. Rationale for Assurance Measures
Correspondences between Assurance Measures and Assurance Components of EAL2 are shown in Table 21.
Table 21 Correspondences between Assurance Measures and Assurance Components of EAL2
Assurance measures
ACM_CAP.2
ADO_DEL.1
ADO_IGS.1
ADV_FSP.1
ADV_HLD.1
ADV_RCR.1
AGD_ADM.1
AGD_USR.1
ATE_COV.1
ATE_FUN.1
ATE_IND.2
AVA_SOF.1
AVA_VLA.1
Data Security Kit DA-SC06 Configuration Management
Plan
○
Data Security Kit DA-SC06 Configuration List ○
Data Security Kit DA-SC06 Delivery Procedures ○
- Operating Instructions Data Security Kit DA-SC06(in
Japanese)
- Installation Instructions for service technicians Data
Security Kit DA-SC06(in Japanese)
- Service Manual Digital Imaging Systems DP-8032 /
8025(in Japanese)
- Operating Instructions Data Security Kit DA-SC06
- Installation Instructions for service technicians Data
Security Kit DA-SC06
- Service Manual Digital Imaging Systems DP-8032 / 8025
○
Data Security Kit DA-SC06 Functional Specification ○
Data Security Kit DA-SC06 Design Specification ○
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
- 37 -
Data Security Kit DA-SC06 Functional Correspondence
Description
○
- Operating Instructions(For Basic Operations)
Digital Imaging Systems DP-8032P / 8025P
DP-8032V / 8025V DP-8032VA / 8025VA (in Japanese)
- Operating Instructions Data Security Kit DA-SC06 (in
Japanese)
- Installation Instructions for Service Technicians
Data Security Kit DA-SC06(in Japanese)
- Service Manual Digital Imaging Systems DP-8032 / 8025
(in Japanese)
- Operating Instructions(For Copy & Network Scan
Functions)
Digital Imaging Systems DP-8032 / 8025
- Operating Instructions Data Security Kit DA-SC06
- Installation Instructions for Service Technicians
Data Security Kit DA-SC06
- Service Manual Digital Imaging Systems DP-8032 / 8025
○
- Operating Instructions(For Basic Operations)
Digital Imaging Systems DP-8032P / 8025P
DP-8032V / 8025V DP-8032VA / 8025VA (in Japanese)
- Operating Instructions Data Security Kit DA-SC06(in
Japanese)
- Operating Instructions(For Copy & Network Scan
Functions)
Digital Imaging Systems DP-8032 / 8025
- Operating Instructions Data Security Kit DA-SC06
○
Data Security Kit DA-SC06 Test Plan and Report ○ ○
TOE ○
Data Security Kit DA-SC06 Security Function Strength
Analysis
○
Data Security Kit DA-SC06 Vulnerability Analysis ○
ACM_CAP.2
Data Security Kit DA-SC06 Configuration Management Plan and Configuration List satisfy the requirements because they
clearly identify the TOE configuration items.
ADO_DEL.1
Data Security Kit DA-SC06 Delivery Procedures satisfies the requirements because they describe the necessary procedures
to maintain the security at delivery of TOE.
ADO_IGS.1
- Operating Instructions Data Security Kit DA-SC06(in Japanese)
- Installation Instructions for service technicians Data Security Kit DA-SC06(in Japanese)
- Service Manual Digital Imaging Systems DP-8032 / 8025(in Japanese)
- Operating Instructions Data Security Kit DA-SC06
- Installation Instructions for service technicians Data Security Kit DA-SC06
-Service Manual Digital Imaging Systems DP-8032 / 8025
All above documents satisfy the requirements because they describe the procedures of secure installation, generation and
start-up of TOE.
ADV_FSP.1
Data Security Kit DA-SC06 Functional Specification satisfies the requirements because it describes the informal functional
specification of TOE.
ADV_HLD.1
Data Security Kit DA-SC06 Design Specification satisfies the requirements because it describes the descriptive high-level
design of TOE.
ADV_RCR.1
Data Security Kit DA-SC06 Functional Correspondence Description satisfies the requirements because it describes the
informal correspondence demonstration of TOE.
AGD_ADM.1
- Operating Instructions(For Basic Operations) Digital Imaging Systems DP-8032P / 8025P DP-8032V / 8025V DP-8032VA /
8025VA (in Japanese)
- Operating Instructions Data Security Kit DA-SC06(in Japanese)
- Installation Instructions for Service Technicians Data Security Kit DA-SC06(in Japanese)
- Service Manual Digital Imaging Systems DP-8032 / 8025 (in Japanese)
©2007 Panasonic Communications Co., Ltd. All Rights Reserved.
- 38 -
- Operating Instructions(For Copy & Network Scan Functions) Digital Imaging Systems DP-8032 / 8025
- Operating Instructions Data Security Kit DA-SC06
- Installation Instructions for Service Technicians Data Security Kit DA-SC06
- Service Manual Digital Imaging Systems DP-8032 / 8025
All above satisfy the requirements because they describe the guidance for TOE administrators.
AGD_USR.1
- Operating Instructions(For Basic Operations) Digital Imaging Systems DP-8032P / 8025P DP-8032V / 8025V DP-8032VA /
8025VA (in Japanese)
- Operating Instructions Data Security Kit DA-SC06(in Japanese)
- Operating Instructions(For Copy & Network Scan Functions) Digital Imaging Systems DP-8032 / 8025
- Operating Instructions Data Security Kit DA-SC06
All above satisfy the requirements because they describe the guidance for TOE users.
ATE_COV
Data Security Kit DA-SC06 Test Plan and Report satisfies the requirements because it describes the correspondence
between the identified tests and TSF described in functional specification.
ATE_FUN.1
Data Security Kit DA-SC06 Test Plan and Report satisfies the requirements because it describes the test plan, test procedure,
anticipated test results and the actual test results.
ATE_IND.2
Assurance Measures TOE satisfies the requirements because it is necessary for the evaluator to execute the independent
tests.
AVA_SOF.1
Data Security Kit DA-SC06 Security Function Strength Analysis satisfies the requirements because it describes the security
function strength of TOE.
AVA_VLA.1
Data Security Kit DA-SC06 Vulnerability Analysis satisfies the requirements because it describes the obvious vulnerabilities
and identified vulnerabilities.
8.4. Rationale for PP Claims
There is no applicable PP.