Common Criteria
Information Technology
Security Evaluation
S3CJ9QD
Security Target Lite
Version 1.0
October 1, 2005
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CONTENTS
1 ST INTRODUCTION........................................................................................................................................ 3
1.1 ST IDENTIFICATION .......................................................................................................................................... 3
1.2 ST OVERVIEW.................................................................................................................................................... 3
2 TOE DESCRIPTION.......................................................................................................................................... 4
2.1 PRODUCT TYPE .............................................................................................................................................. 4
2.2 SMART CARD PRODUCT LIFE-CYCLE ............................................................................................................... 6
2.3 TOE ENVIRONMENT ........................................................................................................................................ 8
2.4 TOE LOGICAL PHASES ...................................................................................................................................... 9
2.5 TOE INTENDED USAGE..................................................................................................................................... 9
2.6 GENERAL IT FEATURES OF THE TOE............................................................................................................ 10
3 TOE SECURITY ENVIRONMENT............................................................................................................... 11
3.1 ASSETS ............................................................................................................................................................ 11
3.2 ASSUMPTIONS................................................................................................................................................. 11
3.3 THREATS ......................................................................................................................................................... 12
3.4 ORGANIZATIONAL SECURITY POLICIES.......................................................................................................... 15
4 SECURITY OBJECTIVES ................................................................................................................................. 16
4.1 SECURITY OBJECTIVES FOR THE TOE.............................................................................................................. 16
4.2 SECURITY OBJECTIVES FOR THE ENVIRONMENT ............................................................................................. 17
5 TOE SECURITY FUNCTIONAL REQUIREMENTS................................................................................. 20
5.1 FUNCTIONAL REQUIREMENTS ENFORCED BY THE TOE ...................................................................... 20
5.2 FUNCTIONAL REQUIREMENTS ENFORCED BY THE IT ENVIRONMENT............................................... 27
6 TOE SECURITY ASSURANCE REQUIREMENTS................................................................................... 28
6.1 ADV_IMP.2 IMPLEMENTATION OF THE TSF................................................................................................ 28
6.2 ALC_DVS.2 SUFFICIENCY OF SECURITY MEASURES ..................................................................................... 28
6.3 AVA_VLA.3 MODERATE RESISTANT ........................................................................................................ 29
7 TOE SUMMARY SPECIFICATION............................................................................................................. 30
7.1 LIST OF SECURITY FUNCTION................................................................................................................ 30
7.2 ASSURANCE MEASURES .................................................................................................................................. 33
8 PP CLAIMS........................................................................................................................................................ 34
ANNEX A..................................................................................................................................................................... 35
GLOSSARY .................................................................................................................................................................. 35
ABBREVIATIONS ......................................................................................................................................................... 37
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1 ST INTRODUCTION
1.1 ST IDENTIFICATION
Title: Security Target Lite of Project Blackfoot (S3CJ9QD)
Version: V1.0, issued on October 1, 2005
Version number Common Criteria
V1.0 version 2.2
1 A glossary of terms used in the ST is given in annex A.
2 This ST has been built with Common Criteria Version 2.2
3 This ST is based on Protection Profile of Smart Card Integrated Circuit, PP/9806(version 2.0,
September 1998).
1.2 ST OVERVIEW
4 This Security Target is the work of the Samsung Electronics Co., Ltd. TOE is smart card
integrated circuit. The ST is “CC part 2 conformant and CC part 3 conformant”. The TOE is to
be evaluated with Common Criteria Version 2.2.
5 The assurance level for this ST is EAL4 augmented by the assurance component ADV_IMP.2
(Implementation representation), ALC_DVS.2 (Sufficiency of security measure) and
AVA_VLA.3 (Moderate resistant) with the dependencies of the chosen hierarchically higher
assurance components are satisfied).
6 The main objectives of this Security Target are:
z To describe the Target of Evaluation (TOE) as a functional product. This ST focuses on the
development and use of integrated circuit.
z To describe the security environment of the TOE including the assets to be protected and
the threats to be countered by the TOE and by the environment during the development
and the operational phases of the card.
z To describe the security objectives of the TOE and its supporting environment in terms of
integrity and confidentiality of application data and programs, protection of the TOE and
associated documentation during the development phase.
z To specify the security requirements that includes the TOE Security functional
requirements and the TOE security assurance requirements.
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2 TOE DESCRIPTION
7 This part of the ST describes the TOE as an aid to the understanding of its security
requirements and addresses the product type, the intended usage and the general features of
the TOE.
2.1 PRODUCT TYPE
8 The Target of Evaluation (TOE) is the single chip microcontroller unit in accordance with the
functional specification, independent of the physical interface, the way it is packaged and any
other security device supported by the micro module and the plastic card. Generally, a Smart
Card product may include other elements (such as specific hardware components, batteries,
capacitors, antenna, holograms, magnetic stripes, and security printing...) but these are not in
the scope of this Security Target.
SC200
32-bit RISC CPU
Memory
Protection Unit
2 I/O
Clock Controller
Security Controller
RAM
10K-Byte
EEPROM
128K-Byte
ROM
256K-Byte
Cryptographic
Coprocessor
32-Bit
Watchdog Timer
32-Bit Timers
Interrupt Controller
Random Number
Generator
AMBA
Bus
DES Accelerator
Jazelle
Figure 2-1. S3CJ9QD Block diagram
9 The typical TOE is composed of a processing unit, security components, I/Os and volatile and
non-volatile memories. The TOE always comprises a smart card embedded software and an IC
dedicated software (Test ROM code and crypto. library). The former is out of scope of the
evaluation, while the latter is within the scope of the evaluation.
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The TOE submitted to the evaluation comprises the following components:
TOE component Reference
S3CJ9QD 40dip S3CJ9QDX01 rev.6
Elements Storage Area Version Comments
Test ROM Code ROM 2.0
Within the
Evaluation perimeter
Standard
Crypto. Library
ROM 3.0N Out of evaluation perimeter
S3CJ9QD
dedicated software
Secure
Crypto. Library
EEPROM 3.2S
Within the
Evaluation perimeter
S3CJ9QD
embedded software
S3CJ9QD User Test code, version 1.0 Out of evaluation perimeter
Table 2-1. TOE hardware and software components
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2.2 SMART CARD PRODUCT LIFE-CYCLE
10 The Smart Card product life-cycle is decomposed into 7 phases, according to the “ Smart Card
Integrated Circuit Protection Profile ”. (PP/9806 version 2.0, issue September 1998)
Phase 1
Smartcard
embedded
software
development
The smart card embedded software developer is in charge of
the smart card embedded software development and the
specification of IC pre-personalisation requirements,
Phase 2 IC development
The IC designer designs the IC, develops IC dedicated
software, provides information, software or tools to the smart
card embedded software developer, and receives the smart
card embedded software from the developer, through trusted
delivery and verification procedures. From the IC design, IC
dedicated software and smart card embedded software, he
constructs the smart card IC database, necessary for the IC
photomask fabrication,
Phase 3
IC manufacturing
and wafer testing
The IC manufacturer is responsible for producing the IC
through three main steps: IC manufacturing, IC wafer testing,
and IC pre-personalisation,
Phase 4
IC packaging and
testing
The IC packaging manufacturer is responsible for the IC
packaging and testing,
Phase 5
Smartcard
product finishing
process
The smart card product manufacturer is responsible for the
smart card product finishing process and testing,
Phase 6
Smartcard
personalisation
The personaliser is responsible for the smart card
personalisation and final tests. Other smart card embedded
software may be loaded onto the chip at the personalisation
process,
Phase 7
Smartcard end
usage
The smart card issuer is responsible for the smart card
product delivery to the smart card end-user, and the end of
life process.
Table 2-2. Smart card product life-cycle phases
11 The limit of this Security Target corresponds to phase 2 and phase3, including the phase 1
delivery and verification procedures and the TOE delivery to the IC packaging manufacturer;
phase 1, 4, 5, 6 and 7 are outside the scope of this ST.
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12 The figure 2-2. describes the Smartcard product life-cycle.
Smartcard IC
database construction
IC Photomask
Fabrication
IC Manufacturing
IC Testing and
Prepersonalisation
IC Packaging
Testing
Smartcard product
Finishing process
Testing
Personalisation
Testing
Smartcard product
End-Usage
End of life process
Phase 1
Phase 2
Phase3
Phase 4
Phase 5
Phase 6
Phase 7
IC Design IC Dedicated software
IC Pre-personalisation
requirements*
Smartcard embedded
software
Embedded software
Pre-personalisation data
IC sensitive information
software, tools
IC Pre-personalisation
requirements*
Legend:
Optional components
Trusted delivery and
verification procedures
*
PRODUCT
CONSTRUCTION
PRODUCT
USAGE
User
phase
Production
phase
Development
phase
Figure 2-2. Smart card product life-cycle
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13 Procedures on the delivery process of the TOE must exist and be applied for every delivery
within this phase or between phases. This includes any kind of delivery performed from phase
2 to 3, including:
z Intermediate delivery of the TOE or the TOE under construction within a phase
z Delivery of the TOE or the TOE under construction from one phase to the next.
14 These procedures shall be compliant with the assumptions [A.DLV].
15 The TOE controls following configurations:
TOE Configuration Product Life Cycle Authorized User (Role)
TEST Configuration Phase 3 Test Administrator
USER Configuration Phase 4 to 7 User
Table 2-3. TOE configurations
2.3 TOE ENVIRONMENT
16 Considering the TOE, the Development environment is defined as follow:
z Design environment corresponding to phase 2
z Production environment corresponding to phase 3 including the test operations
User environment, from phase 4 to phase 7
2.3.1 TOE Design Environment
17 To assure security, the environment in which the development takes place shall be made
secured with controllable accesses having traceability. Furthermore, it is important that all
authorised personnel involved fully understand the importance and the rigid implementation
of defined security procedures.
18 The development begins with the TOE's specification. All parties in contact with sensitive
information are required to abide by Non-Disclosure Agreement's.
19 Design and development of the IC then follows. The engineer uses a secure computer system
(preventing unauthorised access) to make his design simulations, circuit performance
verifications and generation of the TOE's IC photomask databases. Sensitive documents,
databases on tapes, diskettes, and printed circuit layout information are stored in appropriate
locked cupboards/safe. Of paramount importance also is the disposal of unwanted data
(complete electronic erasures) and documents (e.g. shredding).
20 Reticles and photomasks are generated from the verified IC databases; the formers are used in
the silicon Wafer-fab processing. Reticles and photomasks are generated only on-site for
security.
2.3.2 TOE Production environment
21 As high volumes of product commonly go through such environments, adequate control
procedures are necessary to account for all products at all stages of production.
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22 Production starts within the Wafer-fab; here the silicon wafers undergo the diffusion
processing typically in 25-wafer lots. Computer tracking at wafer level throughout the process
is commonplace. The wafers are then taken into the test area. Testing and security
programming (optional) of each TOE occurs. After fabrication, the TOE is tested to assure
conformance with the device specification. The wafers will then be delivered for assembly
onto the smart card.
2.3.3 TOE user environment
23 The TOE user environment is the environment of phases 4 to 7.
24 At phases 4, 5 and 6, the TOE user environment is a controlled environment.
End-user environment (phase 7)
25 Smart cards are used in a wide range of applications to assure authorised conditional access.
Examples of such are Pay-TV, Banking Cards, Portable communication SIM cards, Health
cards, and Transportation cards.
26 The end-user environment therefore covers a wide spectrum of very different functions, thus
making it difficult to avoid and monitor any abuse of the TOE.
2.4 TOE LOGICAL PHASES
27 During its construction usage, the TOE may be under several life logical phases. These phases
are sorted under a logical controlled sequence. The change from one phase to the next shall be
under the TOE control.
2.5 TOE INTENDED USAGE
28 The TOE can be incorporated in several applications such as:
z Banking and finance market for credit / debit cards, electronic purse (stored value cards)
and electronic commerce.
z Network based transaction processing such a mobile phones (GSM SIM cards), pay TV
(subscriber and pay-per-view cards), communication highways (Internet access and
transaction processing).
z Transport and ticketing market (access control cards).
z Governmental cards (ID cards, healthcards, driver license etc.).
z Multimedia commerce and Intellectual Property Rights protection.
29 During the phases 2 and 3, the TOE is being developed. The administrators are the following:
z Design Team (phase 2): Design Manager
z The Photomask Team (phase 2): Photomask Manager
z IC Production Team(phase 3): Production Engineering Manager
z IC Testing Team(phase 3): Test Manager
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2.6 GENERAL IT FEATURES OF THE TOE
2.6.1 TOE Features
30 The TOE IT Security functionalities consist of data storage and processing such as:
- arithmetical functions (e.g. incrementing counters in electronic purse, calculating currency
conversion in electronic purse…),
- data communication,
- cryptographic operations (e.g. date encryption, digital signature)
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3 TOE SECURITY ENVIRONMENT
31 This section describes the security aspects of the environment in which the TOE is intended to
be used and addresses the description of the assumptions, the assets to be protects, the threats
and the organizational security policies.
3.1 ASSETS
32 Assets are security relevant elements of the TOE that include:
z The application data of the TOE (such as IC pre-personalization requirements, IC and
system specific data),
z The smart card embedded software,
z The IC dedicated software,
z The IC specification, design, development tools and technology.
33 The TOE itself is therefore an asset.
34 Assets have to be protected in terms of confidentiality and integrity.
3.2 ASSUMPTIONS
35 It is assumed that this section concerns the following items:
z Due to the definition of the TOE limits, any assumption for the smart card embedded
software development (phase 1 is out side the scope of the TOE),
z Any assumption from phases 4 to 7 for the secure usage of the TOE, including the TOE
delivery procedures.
36 Security is always the matter of the whole system: the weakest element of the chain determines
the total system security. Assumptions described hereafter has to be considered for a secure
system using smart card products:
z Assumptions on phase 1,
z Assumptions on the TOE delivery process (phases 4 to 7),
z Assumptions on phases 4-5-6
z Assumptions on phases 7.
3.2.1 Assumptions on phase 1
A.SOFT_ARCHI The smart card embedded software shall be developed in a secure
manner, which is focusing on integrity of program and data.
A.DEV_ORG Procedures dealing with physical, personnel, organizational, technical
measures for the confidentiality and integrity of smart card embedded
software (e.g. source code and any associated documents) and IC
designer proprietary information (tools, software, documentation...) shall
exist and be applied in software development.
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3.2.2 Assumptions on the TOE delivery process (phases 4 to 7)
37 Procedures shall guarantee the control of the TOE delivery and storage process and
conformance its objectives as described in the following assumptions.
A.DLV_PROTECT Procedures shall ensure protection of TOE material/information under
delivery and storage.
A.DLV_AUDIT Procedures shall ensure that corrective actions are taken in case of
improper operation in the delivery process and storage.
A.DLV_RESP Procedures shall ensure that people dealing with the procedure for
delivery have got the required skill.
3.2.3 Assumptions on phases 4 to 6
A.USE_TEST It is assumed that appropriate functionality testing of the IC is used in
phases 4,5 and 6.
A.USE_PROD It is assumed that security procedures are used during all manufacturing
and test operations through phases 4, 5, 6 to maintain confidentiality and
integrity of the TOE and of its manufacturing and test data (to prevent
any possible copy, modification, retention, theft or unauthorized use).
3.2.4 Assumptions on phase 7
A.USE_DIAG It is assumed that secure communication protocols and procedures are
used between smart card and terminal.
A.USE_SYS It is assumed that the integrity and the confidentiality of sensitive data
stored/handled by the system (terminals, communications...) is
maintained.
A.KEY_DEST It is assumed that the user embedded software implements the
cryptographic key destruction method.
3.3 THREATS
38 The TOE as defined in chapter 2 is required to counter the threats described hereafter; a threat
age t wishes to abuse the assets either by functional attacks, environmental manipulations,
specific hardware manipulation s or by any other types of attacks.
39 Threats have to be split in:
z Threats against which specific protection within the TOE is required (class I),
z Threats against which specific protection within the environment is required (class II).
3.3.1 Unauthorised full or partial cloning of the TOE
T.CLON Functional cloning of the TOE (full or partial) appears to be relevant to
any phases of the TOE life-cycle, from phase 1 to phase 7.
Generally, this threat is derived from specific threats combining
unauthorized disclosure, modification or theft of assets at different phases.
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3.3.2 Threats on phase 1 (delivery and verification procedures)
40 During phase 1, three types of threats have to be considered:
a) Threats on the smart cards embedded software and its environment of development,
such as:
• Unauthorized disclosure, modification or theft of the smart card embedded
software and any additional data at phase 1.
Considering the limits of the TOE, these previous threats are outside the scope of this
security target.
b) Threats on the assets transmitted from the IC designer to the smart card embedded
software developer during the smart card development
c) Threats on the smart card embedded software and any additional application data
transmitted during the delivery process from the smart card embedded software
developer to the IC designer.
41 The previous types b and c threats are described hereafter:
T .DIS_INFO Unauthorized disclosure of the assets delivered by the IC designer to the
smart card embedded software developer such as sensitive information
on IC specification, design and technology, software and tools if
applicable;
T.DIS_DEL Unauthorized disclosure of the smart card embedded software and any
additional application data (such as IC pre-personalisation requirements)
during the delivery process to the IC designer;
T.MOD_DEL Unauthorized modification of the smart card embedded software and any
additional application data (such as IC pre-personalisation requirements)
during the delivery process to the IC designer;
T.T_DEL Theft of the smart card embedded software and any additional
application data such as IC pre- personalisation requirements) during the
delivery process to the IC designer.
3.3.3 Threats on phases 2 to 7
42 During these phases, the assumed threats could be described in three types:
z Unauthorized disclosure of assets,
z Theft or unauthorized use of assets,
z Unauthorized modification of assets.
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Unauthorized disclosure of assets
43 This type of threat covers unauthorized disclosure of assets by attackers who may possess a
wide range of technical skills, resources and motivation. Such attackers may also have
technical awareness of the product.
T.DIS_DESIGN Unauthorized disclosure of IC design. This threat covers the
unauthorized disclosure of proprietary elements such as IC
specification, IC design, IC technology detailed information, IC
hardware security mechanism specifications.
T .DIS_SOFT Unauthorized disclosure of smart card embedded software and data
such as access control, authentication system, data protection system,
memory partitioning, cryptographic programs.
T.DIS_DSOFT Unauthorized disclosure of IC dedicated software. This threat covers
the unauthorized disclosure of IC dedicated software including
security mechanisms specifications and implementation.
T .DIS_TEST Unauthorized disclosure of test information such as full results of IC
testing including interpretations.
T .DIS_TOOLS Unauthorized disclosure of development tools. This threat covers
potential disclosure of IC development tools and testing tools
(analysis tools, micro-probing tools).
T.DIS_PHOTOMASK Unauthorized disclosure of photomask information, used for
photoengraving during the silicon fabrication process.
Theft or unauthorized use of assets
44 Potential attackers may gain access to the TOE and perform operations for which they are not
authorized. For example, such attackers may personalize the TOE in an unauthorized manner,
or try to gain fraudulent access to the smart card system.
T.T_SAMPLE Theft or unauthorized use of TOE silicon samples (e.g. bond out chips,
…).
T.T_PHOTOMASK Theft or unauthorized use of TOE photomasks.
T.T_PRODUCT Theft or unauthorized use of smart card products.
Unauthorized modification of assets
45 The TOE may be subjected to different types of logical or physical attacks, which may
compromise security. Due to the intended usage of the TOE (the TOE environment may be
hostile), the TOE security parts may be bypassed or compromised reducing the integrity of the
TOE security mechanisms and disabling their ability t manage the TOE security. This type of
threats includes the implementation of malicious Trojan horses.
T .MOD_DESIGN Unauthorized modification of IC design. This threat covers the
unauthorized modification of IC specification, IC design including IC
hardware security mechanism specifications and realization...
T .MOD_PHOTOMASK Unauthorized modification of TOE photomasks.
T .MOD_DSOFT Unauthorized modification of IC dedicated software including
modification of security mechanisms.
T.MOD_SOFT Unauthorized modification of smart card embedded software and
data.
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46 The Table 3-1 indicates the relationships between the smart card phases and the threats.
Threats Phase 1 Phase 2 Phase 3 Phase 4 Phase 5 Phase 6 Phase 7
Functional cloning
T.CLON Class II Class II Class Class I Class I Class I Class I
Unauthorized disclosure of assets
T.DIS_INFO Class II
T.DIS_DEL Class II
T.DIS_SOFT Class II Class Class I Class I Class I Class I
T.DIS_DSOFT Class II Class Class I Class I Class I Class I
T.DIS_DESIGN Class II Class Class I Class I Class I Class I
T.DIS_TOOLS Class II Class II
T.DIS_PHOTOMAS Class II Class II
T.DIS_TEST Class
Theft or unauthorized of assets
T.T_DEL Class II
T.T_SAMPLE Class II Class Class I Class I
T.T_PHOTOMASK Class II Class II
T.T_PRODUCT Class Class I Class I Class I Class I
Unauthorized modification threats
T.MOD_DEL Class II
T.MOD_SOFT Class II Class Class I Class I Class I Class I
T.MOD_DSOFT Class II Class Class I Class I Class I Class I
T.MOD_DESIGN Class II Class I Class I Class I Class I Class I
T.MOD_PHOTOMA Class II Class
Table 3-1. Threats and phases
3.4 ORGANIZATIONAL SECURITY POLICIES
47 One organizational security policy is defined in the scope of this ST:
OSP_CRYPTO The TOE shall ensure cryptographic calculations such as generation of
random numbers, CRC, DES and RSA encryption/decryption.
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4 SECURITY OBJECTIVES
48 The security objectives of the TOE cover principally the following aspects:
z Integrity and confidentiality of assets,
z Protection of the TOE and associated documentation during development and production
phases.
4.1 SECURITY OBJECTIVES FOR THE TOE
49 The TOE shall use state of art technology to achieve the following IT security objectives:
O.TAMPER The TOE must prevent physical tampering with its security critical
parts.
O.CLON The TOE functionality needs to be protected from cloning.
O.OPERATE The TOE must ensure the continued correct operation of its security
functions.
O.FLAW The TOE must not contain flaws in design, implementation or
operation.
O.DIS_MECHANISM The TOE shall ensure that the hardware security mechanisms are
protected against unauthorized disclosure.
O.DIS_MEMORY The TOE shall ensure that sensitive information stored in memories is
protected against unauthorized disclosure.
O.MOD_MEMORY The TOE shall ensure that sensitive information stored in memories is
protected against any corruption or unauthorized modification.
O.CRYPTO The TOE shall ensure cryptographic calculations such as generation of
random numbers, on-the-fly CRC, DES and RSA encryption/
decryption.
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4.2 SECURITY OBJECTIVES FOR THE ENVIRONMENT
4.2.1 Objectives on phase 1
O.DEV_DIS The IC designer must have procedures to control the sales, distribution,
storage and usage of the software and hardware development tools and
classified documentation, suitable to maintain the integrity and the
confidentiality of the assets of the TOE. It must be ensured that tools are
only delivered to the parties authorized personnel. It must be ensured that
confidential information such as data sets and general information on defined
assets are only delivered to the parties authorize personnel on the need to
know basis.
O.SOFT_DLV The smart card embedded software must be delivered from the smart card
embedded software developer (Phase 1) to the IC designer through a trusted
delivery and verification procedure that shall be able to maintain the integrity
of the software and its confidentiality, if applicable.
O.SOFT_MECH To achieve the level of security required by a given security target based on
this Security Target, the smart card embedded software shall use IC security
features and security mechanisms as specified in the smart card IC
documentation (e.g. sensors,...).
O.DEV_TOOLS The smart card embedded software shall be designed in a secure
manner, by using exclusively software development tools (compilers,
assemblers, linkers simulators etc...) and software-hardware integration
testing tools (emulators) that will grant the integrity of program and data.
4.2.2 Objectives on phase 2 (development phase)
O.SOFT_ACS Smartcard embedded software shall be accessible only by authorized
personnel within the IC designer on the need to know basis.
O.DESIGN_ACS IC specifications, detailed design, IC databases, schematics/layout or any
further design information shall be accessible only by authorized
personnel within the IC designer on the basis of the need to know
(physical, personnel, organizational, technical procedures).
O.DSOFT_ACS Any IC dedicated software specification, detailed design, source code
or any further information shall be accessible only by authorized
personnel within the IC designer on the need to know basis.
O.MASK_FAB Physical, personnel, organizational, technical procedures during
photomask fabrication (including deliveries between photomasks
manufacturer and IC manufacturer) shall ensure the integrity and
confidentiality of the TOE.
O.MECH_ACS Details of hardware security mechanism specifications shall be accessible
only by authorized personnel within the IC designer on the need to know
basis.
O. TI_ACS Security relevant technology information shall be accessible only by
authorized personnel within the IC designer on the need to know basis.
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4.2.3 Objectives on phase 3 (manufacturing phase)
O.TOE_PRT The manufacturing process shall ensure the protection of the TOE from
any kind of unauthorized use such as tampering or theft.
During the IC manufacturing and test operations, security procedure
shall ensure the confidentiality and integrity of:
z TOE manufacturing data (to prevent any possible copy, modification,
retention, theft or unauthorized use)
z TOE security relevant test programs, test data, databases and specific
analysis methods and tools.
These procedures shall define a security system applicable during the
manufacturing and test operations to maintain confidentiality and
integrity of the TOE by control of:
z packaging and storage,
z traceability,
z storage and protection of manufacturing process specific sets (such as
manufacturing process documentation, further data, or samples),
z access control and audit to tests, analysis tools, laboratories, and
databases,
z change/modification in the manufacturing equipment, management
rejects.
O.IC_DLV The delivery procedures from the IC manufacturer shall maintain the
integrity and confidentiality of the TOE and its assets.
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4.2.4 Objectives on the TOE delivery process (phases 4 to 7)
O.DLV_PROTECT Procedures shall ensure protection of TOE material/information under
delivery including the following objectives:
z non-disclosure of any security relevant information,
z identification of the elements under delivery,
z meet confidentiality rules (confidentiality level, transmittal form,
reception acknowledgement),
z physical protection to prevent external damage.
z secure storage and handling procedures are applicable for all TOEs
(including rejected TOEs)
z traceability of TOE during delivery including the following
parameters :
z origin and shipment details,
z reception, reception acknowledgement,
z location material/information.
O.DLV_AUDIT Procedures shall ensure that corrective actions are taken in case of
improper operation in the delivery process (including if applicable any
non-conformance to the confidentiality convention) and highlight all non-
conformance to this process.
O.DLV_RESP Procedures shall ensure that people (shipping department, carrier,
reception department) dealing with the procedure for delivery have got
the required skill, training and knowledge to meet the procedure
requirements and to act to be fully in accordance with the above
expectations.
4.2.5 Objectives on phases 4 to 6
O.TEST_OPERATE Appropriate functionality testing of the IC shall be used in phases 4 to 6.
During all manufacturing and test operations, security procedures shall
be used through phases 4,5,6 to maintain confidentiality and integrity of
the TOE and its manufacturing and test data.
4.2.6 Objectives on phase 7
O.USE_DIAG Secure communication protocols and procedures shall be used between
smart card and terminal.
O.USE_SYS The integrity and the confidentiality of sensitive data stored/handled by
the system (terminals, communications...) shall be maintained.
O.KEY_DEST The cryptographic key destruction method is implemented by the user
embedded software.
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5 TOE SECURITY FUNCTIONAL REQUIREMENTS
50 The TOE security functional requirements define the functional requirements for the TOE
using only functional requirements components drawn from the Common Criteria part 2.
51 The minimum strength of function level for the TOE security requirements is SOF-high.
5.1 FUNCTIONAL REQUIREMENTS ENFORCED BY THE TOE
5.1.1 Functional requirements applicable to phase 3 only (testing phase)
5.1.1.1 User authentication before any action (FIA_UAU.2)
52 The TOE security functions shall require each user to be successfully authenticated before
allowing any other TOE security functions-mediated actions on behalf of that user.
5.1.1.2 User Identification before any action (FIA_UID.2)
53 The TOE security functions shall require each user to identify itself before allowing any other
TOE security functions-mediated actions on behalf of that user.
5.1.1.3 User Attribute Definition (FIA_ATD.1)
54 The TOE security functions shall maintain the following list of security attributes belonging to
individual users: TOE configuration security attribute.
5.1.1.4 TOE Security Functions Testing (FPT_TST.1)
55 The TOE security functions shall run a suite of self tests at the request of the authorized user,
at the conditions *test specific condition to demonstrate the correct operation of the TOE
security functions.
56 The TOE security functions shall provide authorized users with the capability to verify the
integrity of TOE security functions data.
57 The TOE security functions shall provide authorized users with the capability to verify the
integrity of stored TOE security functions executable code.
58 Note: as mentioned in the PP/9806 (version 2.0, issue September 1998), paragraph 18, the IC
dedicated software may be either IC embedded software or security-relevant parts of tests
programs outside the IC.
59 Note: test specific condition is defined in the test documentation version 1.0
5.1.1.5 Stored Data Integrity Monitoring (FDP_SDI.1)
60 The TOE security functions shall monitor user data stored within the TOE scope of control for
all integrity errors on all objects, based on the following attributes: checksum and ATR.
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5.1.2 Functional requirements applicable to phases 3 to 7
Security Management
Functions Actions to be considered
FIA_UAU.2
• management of the authentication data by an administrator,
• management of the authentication data by the user associated
with this data.
FIA_UID.2 • management of the user identities.
FPT_TST.1
• management of the conditions under which TOE security
functions self-testing occurs, such as during initial start-up,
regular interval, or under specified conditions.
FMT_MOF.1
• managing the group of roles that can interact with the functions
in the TOE security functions.
FMT_MSA.1
• managing the group of roles that can interact with the security
attributes.
FMT_SMR.1 • managing the group of users that are part of a role.
FMT_MSA.3
• managing the group of roles that can specify initial values.
• managing the permissive or restrictive setting of default values
For a given access control Security Functions Policy.
FDP_ACF.1
• managing the attributes used to make explicit access or denial
Based decisions.
FDP_IFF.1
• managing the attributes used to make explicit access based
Decisions.
Table 5-1. Actions to be considered for the management functions in FMT management class
5.1.2.1 Management of security functions behavior (FMT_MOF.1)
61 The TOE security functions shall restrict the ability to enable the functions SF3 to the TEST
administrator.
5.1.2.2 Management of security attributes (FMT_MSA.1)
62 The TOE security functions shall enforce the information flow control to restrict the ability to
change_default the security attributes TOE configuration to the TEST administrator.
5.1.2.3 Security roles (FMT_SMR.1)
63 The TOE security functions shall maintain the roles of TEST administrator and user.
z TEST administrator
z User
64 The TOE security functions shall be able to associate users with roles.
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5.1.2.4 Static Attribute Initialisation (FMT_MSA.3)
65 The TOE security functions shall enforce the information access control to provide restrictive
default values for security attributes that are used to enforce the security functions policy.
66 The TOE security functions shall allow the TEST administrator to specify alternate initial
values to override the default values when an object or information is created.
5.1.2.5 Complete Access Control (FDP_ACC.2)
67 The TOE security functions shall enforce the following access control security policies ACP_1
and ACP_2 on the following list of subjects and objects and all operations among subjects
and objects covered by the security functions policy.
68 The TOE security functions shall ensure that all operations between any subject in the TOE
scope of control and any object within the TOE scope of control are covered by an access
control security functions policy.
69 ACP_1: Access Control Policy for IC in TEST configuration
z Whole EEPROM area programmable and erasable
z TEST ROM accessed (read and executable)
z Whole USER ROM (include Cryptographic ROM ) accessed (read and executable)
z RAM accessed (read, write and executable)
70 ACP_2: Access Control Policy for IC in USER configuration
z Partial EEPROM area (exclude security and non erasable area) read, write and erasable
z EEPROM Security area (read and executable)
z Non erasable EEPROM area (read, write only (non erasable) and executable)
z No access (read and execution) to TEST_ROM
z USER ROM and Cryptographic ROM accessed (read and executable)
z RAM accessed (read, write and executable)
Object Table:
Object Comment
TEST_ROMo TEST ROM area
USER_ROMo USER ROM area
Crypto_ROMo Cryptographic ROM area
SEC_EEo SECURITY EEPROM area
NONERA_EEo NON ERASABLE EEPROM area
USER_EEo USER EEPROM area
USER_RAMo USER RAM area
USER_REGo REGISTER area
Table 5-2. Object table
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Subject Table:
Subject Comment
TEST_ROMs Executable code in TEST ROM area
USER_ROMs Executable code in USER ROM area
Crypto_ROMs Executable code in Cryptographic ROM area
SEC_EEs Executable code in SECURITY EEPROM area
NONERA_EEs Executable code in NON ERASABLE EEPROM area
USER_EEs Executable code in USER EEPROM area
USER_RAMs
Executable code in USER RAM area
(test configuration only)
Table 5-3. Subject table
5.1.2.6 Security Attribute Based Access Control (FDP_ACF.1)
71 The TOE security functions shall enforce the ACP_1 and ACP_2 access control security
functions policies to objects based on access control security attributes.
72 The TOE security functions shall enforce the following rules to determine if an operation
among controlled subjects and controlled objects is allowed :
z Access control attribute has only two values :0 (disable) and 1 (enable)
z If the attribute enabled, access is authorized. (access for all operation)
z If the attribute disabled, access is denied. (access for all operation)
73 The TOE security functions shall explicitly authorise access of subjects to objects based on the
following additional rules :
z (R1) Access attribute can be enabled in TEST_ROMs subject only for ACP_1.
z (R2) Access attribute can be enabled in USER_ROMs subject only for ACP_2.
The TOE security functions shall explicitly deny access of subjects to objects based on the rules
(R1) and (R2).
5.1.2.7 Subset Information Flow Control (FDP_IFC.1)
74 The TOE security functions shall enforce the information flow control security functions
policy : IFC-1 on subject TEST_ROMs for all operations.
Note: IFC_1 : Flow of information stored in objects in Test Configuration only.
Note: This security functional requirement is applicable to the IC dedicated software and IC
embedded software.
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5.1.2.8 Simple Security Attributes (FDP_IFF.1)
75 The TOE security functions shall enforce the IFC_1 information flow control security
functions policy based on the following types of subject and information security attribute:
TOE configuration.
76 The TOE security functions shall permit an information flow between a controlled subject and
controlled information via a controlled operation if the following rules hold TOE
configuration in TEST configuration.
77 The TOE security functions shall enforce the additional information flow control security
functions policy rules: none.
78 The TOE security functions shall provide the following non-reversibility of TOE
configuration.
79 The TOE security functions shall explicitly authorize an information flow based on the
following rules: none.
80 The TOE security functions shall explicitly deny an information flow based on the following
rules: none.
Note: this security functional requirement is applicable to the IC dedicated software and IC
embedded software.
Event
CPU exceptions*
Abnormal voltage occurrence
Abnormal frequency occurrence
Abnormal temperature occurrence
Light exposure occurrence
Inner insulation removal occurrence
Power Glitch Attack occurrence
Active shield removal attack occurrence
Table 5-4. List of event
5.1.2.9 Potential Violation Analysis (FAU_SAA.1)
81 The TOE security functions shall be able to apply a set of rules in monitoring the audited
events and based upon these rules indicate a potential violation of the TOE security policy.
82 The TOE security functions shall enforce the following rules for monitoring audited events:
a) Accumulation or combination of events defined in Table 5-4. known to indicate a potential
security violation;
b) any other rules: none
* CPU exceptions include invalid memory access, invalid instruction and data
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5.1.2.10 Unobservability (FPR_UNO.1)
83 The TOE security functions shall ensure that all users are unable to observe all operations on
all objects by all subjects.
Notes:
z In the context of smart card ICs, “unobservability” is defined as the impossibility to obtain
the address and value of information during an operation on this information.
Identification (by unauthorized user) of the operation itself is not part of the
unobservability.
z It is assumed that all user subjects are compliant with the Guidance Documentation
5.1.2.11 Notification of Physical Attack (FPT_PHP.2)
84 The TOE security functions shall provide unambiguous detection of physical tampering that
might compromise the TOE security functions.
85 The TOE security functions shall provide the capability to determine whether physical
tampering with the TOE security function’s devices or TOE security functions’s elements has
occurred.
Elements for Detection Detection Notification
Voltage Detector Flag setting
Frequency Detector Flag setting
Temperature Detector Flag setting
Light exposure Detector Flag setting
Inner insulation removal Detector Flag setting
Power Glitch Detector Flag setting
Active shield removal Disconnection Detector Flag setting
Table 5-5. List of detector elements and attack notification
5.1.2.12 Resistance to Physical Attack (FPT_PHP.3)
86 The TOE security functions shall resist the physical tampering scenarios given in Table 5-6.
to the list of detector elements and attack notification (Table 5-5) by responding
automatically such that the TOE security policy is not violated.
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Physical Tampering Scenario Reaction Elements
Abnormal Voltage Attack RESET state
Abnormal Frequency Attack RESET state
Abnormal Temperature Attack RESET state
Light exposure Attack RESET state
Inner insulation removal Attack RESET state
Power Glitch Attack RESET state
Active shield removal attack RESET state
Noise introduction attack (on
Clock and Reset interfaces)
Noise removal
Table 5-6. List of physical attack scenarios, functions and responses
Note: As described in the CC part 2 annexes, technology limitations and relative physical
exposure of the TOE must be considered.
5.1.2.13 Cryptographic operation (FCS_COP.1)
87 In order for a cryptographic operation to function correctly, the operation must be performed
in accordance with specified algorithm and with a cryptographic key of specified size. The TSF
shall perform in accordance with specified cryptographic algorithms.
Operation Algorithm Key size Standards
Encryption/Decryptio
n
DES
64 bits FIPS 46-2
Encryption/Decryptio
n
RSA
128 to 2048 bits ANSI X9.31
Random number
generation
Factorization of
Trinomials
16 bits length number FIPS 140-2*
On-the-fly CRC CRC-16 - CCITT V.41
Table 5-7. List of cryptographic operations
* RNG tests as described in FIPS 140-2(1999). These tests were removed from FIPS140-2(2002).
5.1.2.14 Cryptographic key management (FCS_CKM.1)
Cryptographic key generation requires cryptographic keys to be generated in accordance with a
specified algorithm and key size which can be based on an assigned standard. The TSF shall generate
cryptographic key generation with specified cryptographic algorithms.
Cryptography Algorithm Key size Standards
RSA
Encryption/Decryptio
n
Generation of
prime number
128 to 2048 bits
The Rabin-Miller
Probabilistic Primality Test
Table 5-8. List of cryptographic key generations
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5.2 FUNCTIONAL REQUIREMENTS ENFORCED BY THE IT ENVIRONMENT
88 IT environment is the user embedded software.
5.2.1 Functional requirements applicable to phase 7
5.2.1.1 Cryptographic key destruction(FCS_CKM.4)
89 The TSF shall destroy cryptographic key in accordance with a specified cryptographic key
destruction method [assignment: cryptographic key destruction method] that meets the
following: [assignment: list of standards]
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6 TOE SECURITY ASSURANCE REQUIREMENTS
90 The Assurance requirement is EAL 4 augmented of additional assurance components as listed
in the following sections.
91 These components are hierarchical ones to the components specified in EAL 4.
6.1 ADV_IMP.2 IMPLEMENTATION OF THE TSF
Developer actions elements:
92 The developer shall provide the implementation representation for the entire TOE security
functions.
Content and presentation of evidence elements:
93 The implementation representation shall unambiguously define the TOE security functions to
a level of detail such that the TOE security functions can be generated without further design
decisions.
94 The implementation representation shall be internal-consistent.
95 The implementation representation shall describe the relationships between all portions of the
implementation.
Evaluator action elements:
96 The evaluator shall confirm that the information provided meets all requirements for content
and presentation of evidence.
97 The evaluator shall determine mat the implementation representation is an accurate and
complete instantiation of the TOE security functional requirements.
6.2 ALC_DVS.2 SUFFICIENCY OF SECURITY MEASURES
Developer actions elements:
98 The developer shall produce development security documentation.
Content and presentation of evidence elements:
99 The development security documentation shall describe all the physical, procedural, personnel,
and other security measures that are necessary to protect the confidentiality and integrity of
the TOE design and implementation in its development environment.
100 The development security documentation shall provide evidence that these security measures
are followed during the development and maintenance of the TOE.
101 The evidence shall justify that the security measures provide the necessary level of protection
to maintain the confidentiality and integrity of the TOE.
Evaluator action elements:
102 The evaluator shall confirm that the information provided meets all requirements for content
and presentation of evidence
103 The evaluator shall confirm that the security measures are being applied.
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6.3 AVA_VLA.3 MODERATE RESISTANT
Developer actions elements:
104 The developer shall perform vulnerability analysis.
105 The developer shall provide vulnerability analysis document.
Content and presentation of evidence elements:
106 The vulnerability analysis documentation shall describe the analysis of the TOE deliverables
performed to search way in which a user can violate the TSP.
107 The vulnerability analysis documentation shall describe the deposition of identified
vulnerabilities.
108 The vulnerability analysis documentation shall show, for all of identified vulnerabilities, that
the vulnerability cannot be exploited in the intended environment for the TOE.
109 The vulnerability analysis documentation shall justify that the TOE, with the identified
vulnerabilities, is resistant to obvious penetration attacks.
110 The vulnerability analysis documentation shall show that the search for vulnerabilities is
systematic.
Evaluator action elements:
111 The evaluator shall confirm that the information provided meets all requirements for content
and presentation of evidence.
112 The evaluator shall conduct penetration testing, building on the developer vulnerability
analysis, to ensure the identified vulnerabilities have been addressed.
113 The evaluator shall perform an independent vulnerability analysis.
114 The evaluator shall perform independent penetration testing, based on the independent
vulnerability analysis, to determine the exploitability of additional identified vulnerabilities in
the intended environment.
115 The evaluator shall determine that the TOE is resistant to penetration attacks performed by an
attacker possessing a moderate attack potential.
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7 TOE SUMMARY SPECIFICATION
7.1 LIST OF SECURITY FUNCTION
SF1: Environmental Security violation recording and reaction
116 These security function records in register the events notified by the detectors (refer to list
below).
z The TOE is immediately reset when an event is detected.
z And a flag is set
List of detectors:
z Abnormal voltage
z Abnormal frequency
z Abnormal temperature
z Light
z Inner insulation removal
z Power Glitch
z Active shield removal
SF2: Access Control
1) Security registers access control
117 This security function manages access to the security control registers.. This is write-enable bit
for security related registers. If user does not enable this bit in 128 cycles after the reset, user
cannot write security control registers any more.
2) Invalid address access
118 This function detects invalid address access occurrence. When an event is detected, an ABORT
is evoked. The memory access rights are configured in MPU (Memory Protection Unit).
SF3: Non reversibility of test configuration and user configuration
119 This function disables the TEST configuration and enables the USER configuration of the TOE.
This function ensures the non-reversibility of the configuration. This function is used once in
the factory.
SF4: Hardware countermeasures for unobserability
120 This function enforces hardware counter measures to enhance unobservability :
z Scrambling of address and data buses
z Encryption of data stored in ROM, RAM, EEPROM memories (static ROM data
encryption, dynamic RAM/EEPROM encryption)
z Synthesizable processor core (glue logic)
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SF5: Test configuration communication protocol and data commands
121 This function is the proprietary protocol used to operate the chip in TEST configuration. This
function enforces the identification and authentication of the TEST administrator during the
test phase of the manufacturing.
SF6: Test
122 During the manufacturing, the operation of the TOE and the embedded software checksum
are verified. This security function ensures the correct operation of the security functions and
the integrity of the embedded software.
SF7: Preventing Environmental Stress
123 1) High Frequency Filter
z This security function is used to cut off extremely high range of frequencies on
the external clock pin.
124 2) Clock Noise Filter
z This noise filter is used to prevent noise and glitches in the external clock line
from causing undefined or unpredictable behavior of the chip.
125 3) Reset Noise Filter:
z This noise filter is used to prevent noise and glitches in the external reset line from
causing undefined or unpredictable behavior of the chip.
SF8: : Software countermeasures for unobserability
126 This function enforces software counter measures to enhance unobservability :
z polarity swap, conditional instruction execution, uniform branch, dummy branch
insertion, dummy multiplier activity
z internal variable clock
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SF9: Cryptography
127 1) Data Encryption Standard Engine
z This function is used for encrypting and decrypting data using a DES.
128 2) Random Number Generator
z This function is used for generating random numbers for security process in the
smart card application.
129 3) TORNADOTM Cryptography Engine
z This function assists in the acceleration of modulo exponentiations required in the
RSA encryption/decryption algorithm.
130 4) TORNADOTM Cryptography Library
z TORNADOTM Crypto Library is optimized for Samsung chips with TORNADO
cryptographic co-processor. TORNADO is a hardware which operates
Montgomery multiplication. There are two kinds of CPU’s which Samsung crypto
chips use. They are 32-bit ARM and 16-bit Calm. Furthermore, there exist many
chips with TORNADO. Therefore, Samsung RSA Crypto Library is developed to
be applied all these chips. That is, Samsung RSA Crypto Library is developed not
to be dependent on a specific chip.
131 5) On-the-fly CRC
z This function is used for on-the-fly CRC block for error detection during data
access.
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7.2 ASSURANCE MEASURES
Assurance
Class
Assurance
Family
Assurance
Component
Assurance measure(document reference)
ACM_AUT 1
ACM_CAP 4
ACM:
Configuration
Management
ACM_SCP 2
Blackfoot Configuration Management
ADO_DEL 2 Blackfoot Delivery Procedures
ADO:
Delivery and
Operation ADO_IGS 1 Blackfoot Installation, generation and start-up Procedures
ADV_FSP 2 Blackfoot Functional Specification
ADV_HLD 2 Blackfoot High Level Design
ADV_LLD 1 Blackfoot Low Level Design
ADV_IMP 2 Blackfoot Implementation
ADV_RCR 1
All representation correspondence analyses are included in
the relevant TOE representation documentation (FSP, HLD,
LLD, IMP)
ADV:
Development
ADV_SPM 1 Blackfoot Security Policy Model
AGD_ADM 1
AGD:
Guidance
Documents AGD_USR 1
Blackfoot Guidance Documentation
ALC_DVS 2 Blackfoot Development Security Procedures
ALC_FLR 1 Blackfoot Flaw Remediation Procedures
ALC_LCD 1 Blackfoot Life Cycle Definition
ALC:
Life Cycle
Support
ALC_TAT 1 Blackfoot Development Tool
ATE_COV 2
ATE_DPT 1
ATE:
Tests
ATE_FUN 1
Blackfoot ATE Documentation
AVA_MSU 2 Blackfoot Analysis of the Guidance Documentation
AVA_SOF 1 Blackfoot Strength of TOE SF Analysis
AVA:
Vulnerability
Assessment
AVA_VLA 3 Blackfoot Vulnerability Analysis
Table 7-1. Assurance measures table
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8 PP CLAIMS
132 S3CJ9QD based on requirements of PP/9806 (version 2.0, September 1998).
133 There are two additional security objectives with respect to the ST:
O.CRYPTO arising from the organizational security policy OSP_CRYPTO. It is a TOE
objective realized by the additional functional requirements FCS_COP.1 and
FCS_CKM.1
O.KEY_DEST arising from the assumption A.KEY_DEST. It is an IT environment objective
realized by the additional functional requirement FCS_CKM.4.
134 No additional assurance requirement is introduced.
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ANNEX A
GLOSSARY
Application Software (AS)
Is the part of ES in charge of the Application of the Smart Card IC.
Basic Software (BS)
Is the part of ES in charge of the generic functions of the Smart Card IC such as Operating System,
general routines and Interpreters.
DAC
Discretionary Access Control
Dedicated Software (DS)
Is defined as the part of ES provided to test the component and/or to manage specific functions of the
component.
Embedded Software (ES)
Is defined as the software embedded in the Smart Card Integrated Circuit. The ES may be in any part
of the non-volatile memories of the Smart Card IC.
Embedded software developer
Institution (or its agent) responsible for the Smart Card embedded software development and the
specification of pre-personalization requirements.
Initialization
Is the process to write specific information in the NVM during IC manufacturing and testing (phase 3)
as well as to execute security protection procedures by the IC manufacturer. The information could
contain protection codes or cryptographic keys.
Initialization Data
Specific information written during manufacturing or testing of the TOE
Integrated Circuit (IC)
Electronic component(s) designed to perform processing and/or memory functions.
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IC designer
Institution (or its agent) responsible for the IC development.
IC manufacturer
Institution (or its agent) responsible for the IC manufacturing, testing, and pre-personalization.
IC packaging manufacturer
Institution (or its agent) responsible for the IC packaging and testing.
Personaliser
Institution (or its agent) responsible for the Smart Card personalization and final testing.
Personalization data
Specific information in the NVM during personalization phase
RBAC
Role-Based Access Control
Security Information
Secret data, initialization data or control parameters for protection system)
Smart Card
A credit sized plastic card, which has a non-volatile memory and a processing unit embedded within it.
Smart Card Issuer
Institution (or its agent) responsible for the Smart Card product delivery to the Smart Card end-user.
Smart Card product manufacturer
Institution (or its agent) responsible for the Smart Card product finishing process and testing.
Smart Card Application Software (AS)
is the part of ES dedicated to the applications
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ABBREVIATIONS
CC
Common Criteria
EAL
Evaluation Assurance Level
IT
Information Technology
PP
Protection Profile
SF
Security Function
SOF
Strength of Function
ST
Security Target
TOE
Target of Evaluation
TSC
TSF Scope of Control
TSF
TOE Security Functions
TSFI
TSF Interface
TSP
TOE Security Policy