Athena IDPass ICAO BAC - Athena IDProtect/OS755 Java Card on STMicroelectronics ST23YR48/80 Microcontroller embedding IDPass applet Security Target Lite Version 2.3 October 27, 2011 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 2 of 68 Contents 1. ST INTRODUCTION .........................................................................................................................................4 1.1. ST IDENTIFICATION........................................................................................................................................4 1.2. COMPOSITE TOE ...........................................................................................................................................5 1.3. TOE OVERVIEW.............................................................................................................................................6 1.4. TOE DESCRIPTION.........................................................................................................................................7 1.5. TOE LIMITS.................................................................................................................................................11 1.6. TOE GUIDANCE...........................................................................................................................................12 1.7. TOE LIFECYCLE...........................................................................................................................................12 1.8. FEATURES OF IDPROTECT – INFORMATIONAL..............................................................................................15 2. CONFORMANCE CLAIMS............................................................................................................................17 2.1. CC CONFORMANCE CLAIM..........................................................................................................................17 2.2. PP CLAIM ....................................................................................................................................................17 3. SECURITY PROBLEM DEFINITION ..........................................................................................................18 3.1. ASSETS ........................................................................................................................................................18 3.2. SUBJECTS.....................................................................................................................................................19 3.3. ASSUMPTIONS..............................................................................................................................................20 3.4. THREAT AGENT ............................................................................................................................................21 3.5. THREATS......................................................................................................................................................22 3.6. ORGANISATIONAL SECURITY POLICIES ........................................................................................................24 4. SECURITY OBJECTIVES ..............................................................................................................................25 4.1. SOS FOR THE TOE .......................................................................................................................................25 4.2. SOS FOR THE ENVIRONMENT .......................................................................................................................28 4.3. SECURITY OBJECTIVES RATIONALE ..............................................................................................................30 5. EXTENDED COMPONENTS DEFINITION ................................................................................................33 5.1. AUDIT DATA STORAGE (FAU_SAS) .............................................................................................................33 5.2. GENERATION OF RANDOM NUMBERS (FCS_RND).......................................................................................34 5.3. AUTHENTICATION PROOF OF IDENTITY (FIA_API)......................................................................................35 5.4. LIMITED CAPABILITIES AND AVAILABILITY (FMT_LIM) ..............................................................................36 5.5. TOE EMANATION (FPT_EMSEC.1).............................................................................................................38 6. SECURITY REQUIREMENTS.......................................................................................................................39 6.1. TOE SECURITY FUNCTIONAL REQUIREMENTS.............................................................................................40 6.2. TOE SECURITY ASSURANCE REQUIREMENTS ..............................................................................................49 6.3. SECURITY REQUIREMENTS RATIONALE .......................................................................................................51 7. TOE SUMMARY SPECIFICATION ..............................................................................................................55 7.1. SF.ACCESS CONTROL ..................................................................................................................................55 7.2. SF.CARD PERSONALIZATION........................................................................................................................55 7.3. SF.MANUFACTURER AUTHENTICATION........................................................................................................56 7.4. SF.PERSONALIZER AUTHENTICATION ..........................................................................................................56 7.5. SF.BAC AUTHENTICATION ..........................................................................................................................56 7.6. SF.ACTIVE AUTHENTICATION ......................................................................................................................57 7.7. SF.CRYPTO ..................................................................................................................................................57 7.8. SF.SECURE MESSAGING...............................................................................................................................58 7.9. SF.PROTECTION ...........................................................................................................................................58 8. ADDITIONAL RATIONALE ..........................................................................................................................59 8.1. RATIONAL FOR ASSURANCE MEASURES........................................................................................................59 8.2. RATIONALE FOR EXTENSIONS ......................................................................................................................59 8.3. PP CLAIM RATIONALE .................................................................................................................................59 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 3 of 68 9. TERMINOLOGY..............................................................................................................................................62 10. REFERENCES..............................................................................................................................................68 List of Tables TABLE 1 – SECURITY ENVIRONMENT TO SECURITY OBJECTIVES MAPPING ..................................................................30 TABLE 2 – ASSURANCE REQUIREMENTS: EAL4 AUGMENTED.......................................................................................49 TABLE 3 – FUNCTIONAL REQUIREMENT TO TOE SECURITY OBJECTIVE MAPPING........................................................51 TABLE 4 – MAPPING ASSURANCE REQUIREMENTS TO ASSURANCE MEASURES............................................................59 List of Figures FIGURE 1 – TOE LOGICAL REPRESENTATION..................................................................................................................7 FIGURE 2 - TYPICAL BAC LDS FOR IDPASS...................................................................................................................9 FIGURE 3 – TOE DESCRIPTION .....................................................................................................................................11 FIGURE 4 – TOE LIFECYCLE .........................................................................................................................................12 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 4 of 68 1. ST Introduction 1.1. ST Identification ST title - Athena IDPass ICAO BAC - Athena IDProtect/OS755 Java Card on STMicroelectronics ST23YR48/80 Microcontroller embedding IDPass applet Authors Athena Smartcard, Inc. General Status Final ST Version Number 2.3 Date of production October 27, 2011 TOE Reference Mask Reference: ―Cassiope_ST23YR80_102‖ IDPass Applet Athena Smartcard Solutions, Inc. Version F103 Build 0002 ROM Code reference: ―v0003 b0002‖ EEPROM Code Reference: ―vF103 b0002‖ IDProtect Athena Smartcard Solutions, Inc. Release Date 0355 Release Level 0402 ROM Code reference: ―Cassiope_ST23YR80_002‖ EEPROM Code Reference: ―Cassiope_ST23YR80_002_P4‖ ST23YR48/80 STMicroelectronics Revision G Configuration SB Maskset K2M0A Certificate ANSSI-CC-2010/02 [9] NesLib STMicroelectronics Version 3.0 Certificate ANSSI-CC-2010/02 [9] Common Criteria CC version 3.1 Part 1: CCMB 2009-07-001 revision 3 [1] Part 2: CCMB 2009-07-002 revision 3 [2] Part 3: CCMB 2009-07-003 revision 3 [3] PP Claim Protection Profile [4] Machine Readable Travel Document with ―ICAO Application‖, Basic Access Control Version 1.10 Assurance level CC 3.1 (Revision 2) EAL 4 augmented Prepared By BSI, Germany Identification BSI-CC-PP-0055 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 5 of 68 1.2. Composite TOE In this Security Target, the name of the composite TOE developer (Athena Smartcard Solutions, Inc.) will be referenced as ‗Athena‘. IDProtect with associated ICAO applet are embedded on STMicroelectronics ST23YR48/80 IC. The composition analysis conducted in this section will use the words Platform to designate the STMicroelectronics ST23YR48/80 IC [6, 7], Application to designate the two software components Athena IDProtect/OS755 and Athena ICAO Applet, and Composite Product to designate the TOE. According to the Composite product documentation [14], the different roles considered in the composition activities are associated as follows: Platform Developer STMicroelectronics Platform Evaluator Serma Technologies Platform Certification Body ANSSI Application Developer Athena Composite Product Integrator STMicroelectronics Composite Product Evaluator Serma Technologies Composite Product Certification Body ANSSI Composite Product evaluation Sponsor Athena See composition requirements coverage: [R1] Platform was evaluated to CC EAL 6+ according to BSI-PP-0035-2007 [8] and Composite Product ST relies on this claim. [R2] Platform Security Target [10] is available. [R3] Evaluated versions of the Platform and Application are exposed here in section 1.1. [R4] Integration evidences are provided as part of the process. [R5] Integration is guided by delivery procedures enforced by Athena and STMicroelectronics. [R6] Integration process involves all configuration parameters provided by Athena. [R7] Integration data and processing are tracked by Athena. [R8] Application development process incorporates the Platform User Guide as technical input. [R9] EAL 6+ certification of the Platform provides: - List of applicable Technical Guides, Application Notes and Errata Sheets - Certified Platform ETR - Platform Certification Report [9] [R10] TOE Test Plan describes validation of the Application on Platform dedicated emulator. [R11] TOE Test Plan describes validation of the Application on the Platform. [R12] Platform certification includes testing evaluation. [R13] Platform samples are delivered by STMicroelectronics to TOE‘s evaluator for testing purpose. [R14] Composite Product samples are delivered by STMicroelectronics to TOE‘s evaluator for penetration testing purpose. [R15] Platform open samples are delivered by STMicroelectronics to TOE‘s evaluator for testing purpose. [R16] EAL 6+ certification of the Platform provides Certified Platform ETR and Certification Report. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 6 of 68 1.3. TOE Overview The protection profile [5] defines the security objectives and requirements for the contactless chip of machine readable travel documents (MRTD) based on the requirements and recommendations of the International Civil Aviation Organization (ICAO). It addresses the advanced security methods Basic Access Control (BAC) and Extended Access Control (EAC) and Chip Authentication similar to the Active Authentication in the Technical reports of ‗ICAO Doc 9303‘ [15]. Athena ePassport is configurable in BAC or EAC chip authentication modes, with or without Active Authentication [15]. Also, it supports contact and contactless communication. This ST applies to the EAC configuration with or without Active Authentication. 1.3.1. TOE Definition The Target of Evaluation (TOE) is the integrated circuit chip of machine readable travel documents (MRTD‘s chip) programmed according to the Logical Data Structure (LDS) [15] and providing the BAC and EAC according to the ‗ICAO Doc 9303‘ [15] and BSI TR-03110 [16], respectively. The TOE comprises at least: - the circuitry of the MRTD‘s chip (ST23YR48/80 IC [6, 7]) - the IC Dedicated Software with the parts IC Dedicated Test and Support Software - the IC Embedded Software (IDProtect Operating System) - the MRTD application (ICAO applet) - the associated guidance documentation 1.3.2. TOE usage and security features for operational use A State or Organization issues MRTDs to be used by the holder for international travel. The traveler presents a MRTD to the inspection system to prove his or her identity. The MRTD in context of this TOE contains (i) visual (eye readable) biographical data and portrait of the holder, (ii) a separate data summary (MRZ data) for visual and machine reading using OCR methods in the Machine readable zone (MRZ) and (iii) data elements on the MRTD‘s chip according to LDS for contactless machine reading. The authentication of the traveler is based on (i) the possession of a valid MRTD personalized for a holder with the claimed identity as given on the biographical data page and (ii) optional biometrics using the reference data stored in the MRTD. The issuing State or Organization ensures the authenticity of the data of genuine MRTD‘s. The receiving State trusts a genuine MRTD of an issuing State or Organization. The issuing State or Organization implements security features of the MRTD to maintain the authenticity and integrity of the MRTD and their data. The MRTD as the passport book and the MRTD‘s chip is uniquely identified by the Document Number. The physical MRTD is protected by physical security measures (e.g. watermark on paper, security printing), logical (e.g. authentication keys of the MRTD‘s chip) and organizational security measures (e.g. control of materials, personalization procedures) [15]. These security measures include the binding of the MRTD‘s chip to the passport book. The logical MRTD is protected in authenticity and integrity by a digital signature created by the document signer acting for the issuing State or Organization and the security features of the MRTD‘s chip. The ICAO defines the baseline security methods (Passive Authentication) and the optional advanced security methods (BAC to the logical MRTD, Active Authentication of the MRTD‘s chip, EAC to the logical MRTD and the Data Encryption of additional sensitive biometrics) as optional security measure in the ‗ICAO Doc 9303‘ [15]. The Passive Authentication Mechanism and the Data Encryption are performed completely and independently on the TOE by the TOE environment. This TOE addresses the protection of the logical MRTD (i) in integrity by write only- once access control and by physical means, and (ii) in confidentiality by the BAC Mechanism. This TOE does not address EAC (Extended Access Control), and this TOE addresses the AA as an optional security mechanism. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 7 of 68 1.4. TOE Description 1.4.1. General The TOE is an MRTD IC where application software is masked in ROM and that can be assembled in a variety of form factors. The main form factor is the electronic passport, a paper book passport embedding a contactless module. The scope of this TOE is covered in section 1.3.1 above. The followings are an informal and non-exhaustive list of example logical and physical representations of possible end products embedding the TOE: - Contactless interface cards and modules - Dual interface cards and modules - Contact only cards and modules - SOIC8 package - QFN44 package - Chip on Board (PCB) Figure 1 – TOE Logical Representation Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 8 of 68 The TOE is linked to a MRTD reader via its HW and physical interfaces.  The contactless type interface of the TOE smartcard is ISO/IEC 14443 compliant.  The optional contact type interface of the TOE smartcard is ISO/IEC 7816 compliant.  The optional interfaces of the TOE SOIC-8 are ISO 9141 compliant.  The optional interfaces of the TOE QNF-44 are JEDEC compliant. There are no other external interfaces of the TOE except the ones described above. The antenna and the packaging, including their external interfaces, are out of the scope of this TOE. The TOE may be applied to a contact reader or to a contactless reader, depending on the external interface type(s) available in its form factor. The readers are connected to a computer and allow application programs (APs) to use the TOE. 1.4.2. MRTD’s chip For this TOE the MRTD is viewed as unit of (1) The physical MRTD as travel document in form of paper, plastic and chip. It presents visual readable data including (but not limited to) personal data of the MRTD holder a. the biographical data on the biographical data page of the passport book, b. the printed data in the Machine Readable Zone (MRZ) and c. the printed portrait. (2) The logical MRTD as data of the MRTD holder stored according to the Logical Data Structure [15] as specified by ICAO on the contactless integrated circuit. It presents contactless readable data including (but not limited to) personal data of the MRTD holder a. the digital Machine Readable Zone Data (digital MRZ data, EF.DG1), b. the digitized portraits (EF.DG2), c. the biometric reference data of finger(s) (EF.DG3) or iris image(s) (EF.DG4) or both, d. the other data according to LDS (EF.DG5 to EF.DG16) and e. the Document security object. This TOE addresses the protection of the logical MRTD:  in integrity by write-only-once access control and by physical means, and  in confidentiality by the Extended Access Control Mechanism. This TOE addresses the Chip Authentication described in [16] as an alternative to the Active Authentication stated in [15]. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 9 of 68 SE AC DGs (SE FB02) EF.CVCA (EF_Cert 011C) EF.SOD (EF 011D) EF.COM (EF 011E) EF.DG15 (EF 010F) AA Public Key (SDO_Asym A001) AA Private Key (SDO_Asym 9001) EF.DG1 (EF 0101) … EF.DGx ... (EF 010x) EF.DG13 (EF 010D) BAC Key (SDO_Sym 8A01) Default SE (SE FB01) ADF (A0000002471001) Master File (3F00) EF.DG16 (EF 0110) Active Authentication Option Figure 2 - Typical BAC LDS for IDPass 1.4.3. Basic Access Control The confidentiality by Basic Access Control (BAC) is a mandatory security feature that is implemented by the TOE. For BAC, the inspection system (i) reads optically the MRTD, (ii) authenticates itself as an inspection system by means of Document Basic Access Keys. After successful authentication of the inspection system the MRTD‘s chip provides read access to the logical MRTD by means of private communication (secure messaging) with this inspection system [15], normative appendix 5. The ICAO Basic protection profile [4] requires the TOE to implement the Chip Authentication defined in [16]. The Chip Authentication prevents data traces described in [15], informative appendix 7, A7.3.3. The Chip Authentication is provided by the following steps: (i) the inspection system communicates by means of secure messaging established by Basic Access Control, (ii) the inspection system reads and verifies by means of the Passive Authentication the authenticity of the MRTD‘s Chip Authentication Public Key using the Document Security Object, (iii) the inspection system generates an ephemeral key pair, (iv) the TOE and the inspection system agree on two session keys for secure messaging in ENC_MAC mode according to the Diffie-Hellman Primitive and (v) the inspection system verifies by means of received message authentication codes whether the MRTD‘s chip was able or not to run this protocol properly (i.e. the TOE proves to be in possession of the Chip Authentication Private Key corresponding to the Chip Authentication Public Key used for derivation of the session keys). The Chip Authentication requires collaboration of the TOE and the TOE environment. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 10 of 68 1.4.4. Active Authentication This TOE offers an optional mechanism called Active Authentication and specified in [16] section 1.2. This security feature is a digital security feature that prevents cloning by introducing a chip-individual key pair: (i) The public key is stored in data group DG15 and thus protected by Passive Authentication. (ii) The corresponding private key is stored in secure memory and may only be used internally by the MRTD chip and cannot be read out. Thus, the chip can prove knowledge of this private key in a challenge-response protocol, which is called Active Authentication. In this protocol the MRTD chip digitally signs a challenge randomly chosen by the inspection system. The inspection system recognizes that the MRTD chip is genuine if and only if the returned signature is correct. Active Authentication is a straightforward protocol and prevents cloning very effectively, but introduces a privacy threat: Challenge Semantics (see Appendix F for a discussion on Challenge Semantics). Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 11 of 68 1.5. TOE Limits The TOE boundaries are the following: IASECC Applet Packages IDProtect/OS755 SB23YR80/48 IDPass ICAO Applet Instance ICAO BAC LDS TOE Physical Boundaries NVM, RAM NVM NVM, ROM NVM, ROM ROM Other Applets Packages Figure 3 – TOE Description Other applet packages are present on the chip: Athena LASER applet and Athena MiniDriver applet. The IASECC Applet package could be instantiated into an ICAO applet instance or an IAS-ECC applet instance. The configuration of the evaluated product comprises only one applet instance: the ICAO applet instance, which is in the TOE perimeter. IDProtect Operating System enforces separation of the data between the applets and associated packages imposing logical separation of data using the Java Card™ Firewall [11-JCRE]. LASER and IAS- ECC are both PKI Java Card applications and follow the ISO7816 and IAS-ECC standards respectively. They are both out of the scope of this TOE. Athena IDProtect is a GlobalPlatform 2.1.1 and Java Card 2.2.2 compliant Operating System that provides applets with standard services as defined in the related GlobalPlatform [13] and Java Card specifications [12]. The hardware platform on which the Operating System is implemented is the STMicroelectronics ST23YR48/80 IC. This IC is certified according to CC EAL 6+ [9] with the Security Target compliant with BSI-PP-0035-2007 [8]. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 12 of 68 1.6. TOE Guidance The TOE guidance comprises the following documentation: Title Date Version IDPass – Manufacturer Manual Consult certification report for applicable dates and versions IDPass – ICAO BAC Preparation Manual IDPass – ICAO BAC Operation Manual 1.7. TOE lifecycle The TOE lifecycle is shown in Figure 4. The integration phase is added to the PP generic lifecycle as this particular TOE requires that card production phase is refined. Figure 4 – TOE lifecycle Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 13 of 68 Phase 1 “Development” (Step1) The TOE is developed in phase 1. The IC developer develops the integrated circuit, the IC Dedicated Software and the guidance documentation associated with these TOE components. HW Design – STMicroelectronics (Step2) The software developer uses the guidance documentation for the integrated circuit and the guidance documentation for relevant parts of the IC Dedicated Software and develops the IC Embedded Software (operating system), the MRTD application and the guidance documentation associated with these TOE components. OS Design – Athena Development departments – Cupertino, US – Edinburgh, Scotland Application Design – Athena Development departments – Cupertino, US The manufacturing documentation of the IC including the IC Dedicated Software and the Embedded Software in the non-volatile non-programmable memories (ROM) is securely delivered to the IC manufacturer. The IC Embedded Software in the non-volatile programmable memories, the MRTD application and the guidance documentation is securely delivered to the MRTD manufacturer. Phase 2 “Manufacturing” (Step3) In a first step the TOE integrated circuit is produced containing the MRTD‘s chip Dedicated Software and the parts of the MRTD‘s chip Embedded Software in the non-volatile non-programmable memories (ROM). The IC manufacturer writes the IC Identification Data onto the chip to control the IC as MRTD material during the IC manufacturing and the delivery process to the MRTD manufacturer. The IC is securely delivered from the IC manufacturer to the MRTD manufacturer. The IC manufacturer adds the parts of the IC Embedded Software in the non-volatile programmable memories (for instance EEPROM). Patch mechanism is terminated in this phase. HW Fabrication and OS & Application implementation – STMicroelectronics IC Manufacturing – STMicroelectronics The Operating System and applicative parts of the TOE which are developed by Athena are sent in a secure way to STMicroelectronics for masking in NVM. In addition to the TOE, the mask contains confidential data, knowledge of which is required in order to initialize and personalize the chip. Additional Java Card applets developed by Athena are included in the mask and the corresponding converted files (.cap or.jca) are also provided to STMicroelectronics. (Step4) During the step Pre-Perso, the MRTD manufacturer (i) creates the MRTD application and (ii) equips MRTD‘s chips with pre-personalization Data. IC Pre-Personalization – STMicroelectronics Creation of the application implies applet instantiation and the creation of MF and ICAO.DF. Card Content Loading and Installing mechanism is terminated in this phase. The pre-personalized MRTD together with the IC Identifier is securely delivered from the MRTD manufacturer to the Personalization Agent. The MRTD manufacturer also provides the relevant parts of the guidance documentation to the Personalization Agent. (Step5) The MRTD manufacturer combines the IC with hardware for the contactless interface in the passport book. IC Packaging – STMicroelectronics or specialized companies MRTD Manufacturing – STMicroelectronics or specialized companies This step corresponds to the integration of the hardware and firmware components into the final product body. The TOE is protected during transfer between various parties. IC Packaging and MRTD Manufacturing are not part of the scope of this TOE. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 14 of 68 Phase 3 “Personalization of the MRTD” (Step6) The personalization of the MRTD includes: (i) the survey of the MRTD holder‘s biographical data, (ii) the enrolment of the MRTD holder biometric reference data, (iii) the printing of the visual readable data onto the physical MRTD, (iv) the writing of the TOE User Data and TSF Data into the logical MRTD and (v) configuration of the TSF if necessary. The step (iv) is performed by the Personalization Agent and includes but is not limited to the creation of the digital MRZ data (EF.DG1), the digitized portrait (EF.DG2), and the Document security object. The signing of the Document security object by the Document signer [15] finalizes the personalization of the genuine MRTD for the MRTD holder. The personalized MRTD (together with appropriate guidance for TOE use if necessary) is handed over to the MRTD holder for operational use. Personalization – 3rd Party Personalization facility The TOE is protected during transfer between various parties by the confidential information which resides in the card during mask production. The Personalization phase is not part of the scope of this TOE. Phase 4 “Operational Use” Where upon the card is delivered to the MRTD holder and until MRTD is expired or destroyed. (Step7) The TOE is used as MRTD chip by the traveler and the inspection systems in the ―Operational Use‖ phase. The user data can be read according to the security policy of the issuing State or Organization and can be used according to the security policy of the issuing State but they can never be modified. The Operational Use phase is not part of the scope of this TOE. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 15 of 68 1.8. Features of IDProtect – Informational Java promises write once, run anywhere capability. Athena IDProtect - Athena Java Card technology and GlobalPlatform Operating System - fulfils that promise for the smart card industry. Athena‘s IDProtect is built to give you flexibility in the way you work: a blank canvas on which to create smart card products for all market sectors. Central to Athena IDProtect is its compliance with the Java Card and GlobalPlatform standards; multiple compliant Java Card applets from any source will run securely on Athena IDProtect enabled silicon. Applets can be securely loaded and deleted post issuance thanks to GlobalPlatform compliant Issuer Security Domain implementation. Athena uses its RapidPort architecture to ease the process of porting the system to different silicon platforms, including contactless, meaning it is already available on various devices from leading manufacturers. 1.8.1. GlobalPlatform IDProtect provides a Card Manager. This is a generic term for the three card management entities of a GlobalPlatform card; the GlobalPlatform Environment, Issuer Security Domain and Cardholder Verification Method Service Provider. GlobalPlatform 2.1.1 Information Technology - Identification cards - Integrated circuit(s) cards with contacts - Part 4: Inter-industry commands for interchange Atomic Package and Application Deletion Memory recovered and is reusable Global PIN A PIN that may be checked by all applets on a card, using CVM.verify(). Its value is usually set at personalization time Secure Channel Protocol 01 SCP01 provides mutual authentication; integrity and data origin authentication; confidentiality Secure Channel Protocol 02 Support for all SCP02 options Secure Channel Protocol 03 Support for all SCP03 options Repeated application install failure The OPEN may keep track of the number of unsuccessful consecutive attempts of the Card Content load and installation process by a particular Application and the total number of such attempts by all applications. Actions may include such defensive measures as the locking or termination of the card Applications boundary violations The OPEN may also enable velocity checking against repeated failed attempts by an Application to allocate additional memory beyond its allowed limit as stored in the Open Platform Registry. The OPEN may choose to lock an Application which exhibits such behavior 1.8.2. Java Card Athena IDProtect is compatible with the following Java Card standards versions [12]:  Runtime Environment Specification for the Java Card Platform, Version 2.2.2 March, 2006  Application Programming Interface, Java Card Platform, Version 2.2.2 March, 2006  Virtual Machine Specification for the Java Card Platform, Version 2.2.2 March, 2006 Data type int is optionally supported in the JCVM and is supported in IDProtect. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 16 of 68 1.8.3. Security settings Keys and PINs are stored encrypted The OS does not store any Keys or PINs in plain text during computation On card key generation RSA keys indicated in the Key Pair list may be generated on the card FIPS 140-2 Level 3 Federal Information Processing Standards Publication: Security Requirements for Cryptographic Modules FIPS PUB 140-2 FIPS approved DRBG IDProtect supports the secure RNG specified in JC API and is FIPS approved FIPS 140-2 Self Tests Self tests are performed to check that the HRNG and the DRBG are not stuck and that RSA Keys that are generated by the TOE are a consistent pair. FIPS 140-2 KAT Known Answer Tests performed at power up. The cryptographic function tests consist of computing from pre-recorded input data, and comparing the results with pre-recorded answers FIPS 140-2 Software Integrity Checks that no FIPS application present in EEPROM (packages) is corrupted. The error detecting code is FIPS approved 1.8.4. Communication Athena IDProtect provides the following communication features:  Physical: ISO/IEC 7816- 1 and 2  Electrical: ISO/IEC 7816- 3 and 4  Protocol Support: o Protocol T=0 with PPS for speed enhancement o Protocol T=1 with PPS for speed enhancement with extended APDU length support o Contactless with a full support for ISO/IEC 14443 Type B protocol 1.8.5. Cryptography Athena IDProtect is a GlobalPlatform compliant Java Card [12] Operating System that supports the following cryptographic algorithms:  AES: AES_128, AES_192, AES_256  DES: Single DES, 2 Key TDES, 3 Key TDES [21]  ECC: o Finite Prime Field o ECC key pair generation o Key length: 160 to 521 bits o Algorithm: ALG_ECDSA_SHA, ALG_ECDSA_SHA_224, ALG_ECDSA_SHA256  RSA o Standard and CRT o RSA key pair generation o Used Key length: RSA_1024 to RSA_4072 bits o Algorithm: ALG_RSA_SHA_ISO9796 [18], ALG_RSA_NOPAD, ALG_RSA_SHA_PKCS1, ALG_RSA_SHA256_PKCS1, ALG_RSA_PCKS1, ALG_RSA_SHA_PKCS1_PSS, ALG_RSA_SHA256_PKCS1_PSS  Hash: SHA-1, SHA-224, SHA-256, SHA-384, SHA-512  RNG: PSEUDO and SECURE Note that not all the Cryptographic algorithms, lengths and modes are involved in TOE Security Functions. Please refer to the relevant SFRs for a complete description of what cryptography is used by the TOE (section 6.1.2). Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 17 of 68 2. Conformance Claims 2.1. CC Conformance Claim The ST claims compliance with the following references: - Common Criteria Version 3.1 Part 1 [1] - Common Criteria Version 3.1 Part 2 [2] extended - Common Criteria Version 3.1 Part 3 [3] conformant Extensions are based on the Protection Profiles (PP [4] and PP [5]) presented in the next section: - FAU_SAS.1 ‗Audit data storage‘ - FCS_RND.1 ‗Generation of random numbers‘ - FIA_API.1 ‗Authentication Proof of Identity‘ - FPT_EMSEC.1 ‗TOE emanation‘ The assurance level for this ST is EAL 4 augmented with: - ALC_DVS.2 2.2. PP Claim This ST claims strict conformance to the following Protection Profile: Protection Profile [4] Machine Readable Travel Document with “ICAO Application”, Basic Access Control Version 1.10 Date 25 th March 2009 Prepared by Bundesamt für Sicherheit in der Informationstechnik (BSI) Identification PP0055 Approved by Bundesamt für Sicherheit in der Informationstechnik (BSI) Registration BSI-CC-PP-0055-2009 Assurance Level Common Criteria 3.1 EAL 4 augmented by ALC_DVS.2 The ICAO BAC and EAC PPs define the security objectives and requirements for the contactless chip of machine readable travel documents (MRTD) based on the requirements and recommendations of the International Civil Aviation Organization (ICAO). It addresses the advanced security methods Basic Access Control and Extended Access Control and Chip Authentication similar to the Active Authentication in the Technical reports of ‗ICAO Doc 9303‘ [15]. This MRTD‘s IC does not limit the TOE interfaces to contactless: both contact and contactless interfaces are part of this TOE and the PP content has been enhanced for this purpose. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 18 of 68 3. Security Problem Definition 3.1. Assets The assets to be protected by the TOE include the User Data on the MRTD‘s chip. Logical MRTD sensitive User Data Sensitive biometric reference data: - EF.DG3: Biometric Finger(s) - EF.DG4: Biometric Eye(s) Iris Logical MRTD data The ‗ICAO Doc 9303‘ [15] requires that Basic Inspection Systems must have access to: - EF.COM: Common Data Elements, lists the existing EF with the user data - EF.SOD: Document Security Object according to LDS [15] used by the inspection system for Passive Authentication of the logical MRTD - EF.DG1: document‘s data (Type, Issuing State or Organization, Number, Expiry Date, Optional Data), holder‘s data (Name, Nationality, Date of Birth, Sex) and Check Digits - EF.DG2: Encoded Face (Global Interchange Feature) - EF.DG5: Biometric Face - EF.DG7: Displayed Signature or Usual Mark - EF.DG8: Displayed Portrait - EF.DG9: Data Feature(s) - EF.DG10: Structure Feature(s) - EF.DG11: Additional Personal Detail(s) - EF.DG12: Additional Document Detail(s) - EF.DG13: optional Detail(s) - EF.DG14: Security Info (Chip Authentication Public Key Info) - EF.DG15: Active Authentication Public Key Info - EF.DG16: Person(s) to Notify Due to interoperability reasons with ‗ICAO Doc 9303‘ [4], the TOE specifies the BAC mechanisms with resistance against enhanced basic attack potential granting access to: o Logical MRTD standard User Data (i.e. Personal Data) of the MRTD holder (EF.DG1, EF.DG2, EF.DG5 to EF.DG13, EF.DG16) (DG6 is absent), o Chip Authentication Public Key in EF.DG14, o Active Authentication Public Key in EF.DG15, o Document Security Object (SOD) in EF.SOD, o Common data in EF.COM. The TOE prevents read access to sensitive User Data o Sensitive biometric reference data (EF.DG3, EF.DG4). Authenticity of the MRTD’s chip The authenticity of the MRTD‘s chip personalized by the issuing State or Organization for the MRTD holder is used by the traveler to prove his possession of a genuine MRTD. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 19 of 68 3.2. Subjects This Security Target considers the following subjects: S.Manufacturer The generic term for the IC Manufacturer producing the integrated circuit and the MRTD Manufacturer completing the IC to the MRTD‘s chip. The Manufacturer is the default user of the TOE during the Phase 2 Manufacturing. The TOE does not distinguish between the users IC Manufacturer and MRTD Manufacturer using this role Manufacturer. S.Personalizer Personalization Agent The agent is acting on behalf of the issuing State or Organization to personalize the MRTD for the holder by some or all of the following activities: (i) establishing the identity of the holder for the biographic data in the MRTD, (ii) enrolling the biometric reference data of the MRTD holder i.e. the portrait, the encoded finger image(s) and/or the encoded iris image(s), (iii) writing these data on the physical and logical MRTD for the holder as defined for global, international and national interoperability, (iv) writing the initial TSF data and (v) signing the Document Security Object defined in [15]. S.Country Country Verifying Certification Authority The Country Verifying Certification Authority (CVCA) enforces the privacy policy of the issuing State or Organization with respect to the protection of sensitive biometric reference data stored in the MRTD. The CVCA represents the country specific root of the PKI of Inspection Systems and creates the Document Verifier Certificates within this PKI. The updates of the public key of the CVCA are distributed in the form of Country Verifying CA Link-Certificates. S.DV Document Verifier The Document Verifier (DV) enforces the privacy policy of the receiving State with respect to the protection of sensitive biometric reference data to be handled by the Extended Inspection Systems. The Document Verifier manages the authorization of the Extended Inspection Systems for the sensitive data of the MRTD in the limits provided by the issuing States or Organizations in the form of the Document Verifier Certificates. S.Terminal A terminal is any technical system communicating with the TOE through its physical interfaces. S.IS Inspection system A technical system used by the border control officer of the receiving State (i) examining an MRTD presented by the traveler and verifying its authenticity and (ii) verifying the traveler as MRTD holder. The Basic Inspection System (BIS) (i) contains a terminal for the communication with the MRTD‘s chip, (ii) implements the terminals part of the Basic Access Control Mechanism and (iii) gets the authorization to read the logical MRTD under the Basic Access Control by optical reading the MRTD or other parts of the passport book providing this information. The General Inspection System (GIS) is a Basic Inspection System which implements additionally the Chip Authentication Mechanism. The Extended Inspection System (EIS) in addition to the General Inspection System (i) implements the Terminal Authentication Protocol and (ii) is authorized by the issuing State or Organization through the Document Verifier of the receiving State to read the sensitive biometric reference data. The security attributes of the EIS are defined of the Inspection System Certificates. S.Holder MRTD Holder The rightful holder of the MRTD for whom the issuing State or Organization personalized the MRTD. S.Traveler Person presenting the MRTD to the inspection system and claiming the identity of the MRTD holder. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 20 of 68 3.3. Assumptions The assumptions describe the security aspects of the environment in which the TOE will be used or is intended to be used. A.MRTD_Manufact MRTD manufacturing on steps 4 to 6 It is assumed that appropriate functionality testing of the MRTD is used. It is assumed that security procedures are used during all manufacturing and test operations to maintain confidentiality and integrity of the MRTD and of its manufacturing and test data (to prevent any possible copy, modification, retention, theft or unauthorized use). A.MRTD_Delivery MRTD delivery during steps 4 to 6 Procedures shall guarantee the control of the TOE delivery and storage process and conformance to its objectives: - Procedures shall ensure protection of TOE material/information under delivery and storage. - Procedures shall ensure that corrective actions are taken in case of improper operation in the delivery process and storage. - Procedures shall ensure that people dealing with the procedure for delivery have got the required skill. A.Pers_Agent Personalization of the MRTD‟s chip The Personalization Agent ensures the correctness of - the logical MRTD with respect to the MRTD holder, - the Document Basic Access Keys, - the Chip Authentication Public Key (EF.DG14) if stored on the MRTD‘s chip, and - the Document Signer Public Key Certificate (if stored on the MRTD‘s chip). The Personalization Agent signs the Document Security Object. The Personalization Agent bears the Personalization Agent Authentication to authenticate himself to the TOE by symmetric cryptographic mechanisms. A.Pers_Agent_AA Personalization of the MRTD‟s chip including Active Authentication The Personalization Agent ensures the correctness of the Active Authentication Public Key (EF.DG15) if stored on the MRTD‘s chip. The Personalization Agent bears the Personalization Agent Authentication to authenticate himself to the TOE by symmetric cryptographic mechanisms. A.Insp_Sys Inspection Systems for global interoperability The Inspection System is used by the border control officer of the receiving State: - examining an MRTD presented by the traveler and verifying its authenticity and - verifying the traveler as MRTD holder. The Basic Inspection System for global interoperability - includes the Country Signing CA Public Key and the Document Signer Public Key of each issuing State or Organization, and - implements the terminal part of the Basic Access Control [15]. The Basic Inspection System reads the logical MRTD under Basic Access Control and performs the Passive Authentication to verify the logical MRTD. The General Inspection System in addition to the Basic Inspection System implements the Chip Authentication Mechanism. The General Inspection System verifies the authenticity of the MRTD‘s chip during inspection and establishes secure messaging with keys established by the Chip Authentication Mechanism. The Extended Inspection System in addition to the General Inspection System (i) supports the Terminal Authentication Protocol and (ii) is authorized by the issuing State or Organization through the Document Verifier of the receiving State to read the sensitive biometric reference data. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 21 of 68 A.Insp_Sys_AA Inspection Systems for global interoperability with Active Authentication The Inspection System may also implement the terminal part of the Active Authentication Protocol. A.BAC-Keys Cryptographic quality of Basic Access Control Keys The Document Basic Access Control Keys being generated and imported by the issuing State or Organization have to provide sufficient cryptographic strength. As a consequence of the ‗ICAO Doc 9303‘ [4], the Document Basic Access Control Keys are derived from a defined subset of the individual printed MRZ data. It has to be ensured that these data provide sufficient entropy to withstand any attack based on the decision that the inspection system has to derive Document Access Keys from the printed MRZ data with enhanced basic attack potential. Application note: When assessing the MRZ data resp. the BAC keys entropy potential dependencies between these data (especially single items of the MRZ) have to be considered and taken into account. E.g. there might be a direct dependency between the Document Number when chosen consecutively and the issuing date. 3.4. Threat agent S.ATTACKER A threat agent trying (i) to manipulate the logical MRTD without authorization, (ii) to read sensitive biometric reference data (i.e. EF.DG3, EF.DG4) or (iii) to forge a genuine MRTD. This threat agent has basic attack potential. Application note: Note that an attacker trying to identify and to trace the movement of the MRTD‟s chip remotely (i.e. without knowing or optically reading the physical MRTD) is not considered by this PP since this can only be averted by the BAC mechanism using the “weak” Document Basic Access Keys that is covered by [4]. The same holds for the confidentiality of the user data EF.DG1, EF.DG2, EF.DG5 to EF.DG16 as well as EF.SOD and EF.COM. Application note: An impostor is attacking the inspection system as TOE IT environment independent on using a genuine, counterfeit or forged MRTD. Therefore the impostor may use results of successful attacks against the TOE but the attack itself is not relevant for the TOE. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 22 of 68 3.5. Threats The TOE in collaboration with its IT environment shall avert the threats as specified below. T.Chip_ID Identification of MRTD‟s chip An attacker trying to trace the movement of the MRTD by identifying remotely the MRTD‘s chip by establishing or listening to communications through the TOE communication interfaces. The attacker has enhanced basic attack potential and does not know the optically readable MRZ data printed on the MRTD data page in advance. Threatened asset is the user anonymity. T.Skimming Skimming the logical MRTD An attacker imitates an inspection system trying to establish a communication to read the logical MRTD or parts of it via the communication channels of the TOE. The attacker does not know the optically readable MRZ data printed on the MRTD data page in advance. Threatened asset is the confidentiality of logical MRTD data. T.Eavesdropping Eavesdropping to the communication between TOE and inspection system An attacker is listening to an existing communication between the MRTD‘s chip and an inspection system to gain the logical MRTD or parts of it. The inspection system uses the MRZ data printed on the MRTD data page but the attacker does not know these data in advance. The attacker has enhanced basic attack potential and does not know the optically readable MRZ data printed on the MRTD data page in advance. Threatened asset is the confidentiality of logical MRTD data. T.Forgery Forgery of data on MRTD‟s chip An attacker alters fraudulently the complete stored logical MRTD or any part of it including its security related data in order to deceive on an inspection system by means of the changed MRTD holder‘s identity or biometric reference data. This threat comprises several attack scenarios of MRTD forgery. The attacker may alter the biographical data on the biographical data page of the passport book, in the printed MRZ and in the digital MRZ to claim another identity of the traveler. The attacker may alter the printed portrait and the digitized portrait to overcome the visual inspection of the inspection officer and the automated biometric authentication mechanism by face recognition. The attacker may alter the biometric reference data to defeat automated biometric authentication mechanism of the inspection system. The attacker may combine data groups of different logical MRTDs to create a new forged MRTD, e.g. the attacker writes the digitized portrait and optional biometric reference finger data read from the logical MRTD of a traveler into another MRTD‘s chip leaving their digital MRZ unchanged to claim the identity of the holder this MRTD. The attacker may also copy the complete unchanged logical MRTD to another chip. The attacker has enhanced basic attack potential and is in possession of one or more legitimate MRTDs. Threatened asset is authenticity of logical MRTD data. T.Counterfeit Counterfeit MRTD‟s chip An attacker with high attack potential produces an unauthorised copy or reproduction of a genuine MRTD‘s chip to be used as part of a counterfeit MRTD. This violates the authenticity of the MRTD‘s chip used for authentication of a traveler by possession of a MRTD. The attacker may generate a new data set or extract completely or partially the data from a genuine MRTD‘s chip and copy them on another appropriate chip to imitate this genuine MRTD‘s chip. The attacker is in possession of one or more legitimate MRTDs. Threatened asset is authenticity of logical MRTD data. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 23 of 68 The TOE shall avert the threats as specified below. T.Abuse-Func Abuse of Functionality An attacker may use functions of the TOE which shall not be used in ―Operational Use‖ phase in order (i) to manipulate User Data, (ii) to manipulate (explore, bypass, deactivate or change) security features or functions of the TOE or (iii) to disclose or to manipulate TSF Data. This threat addresses the misuse of the functions for the initialization and the personalization in the operational state after delivery to MRTD holder. The attacker has enhanced basic attack potential and is in possession of a legitimate MRTD. Threatened assets are confidentiality and authenticity of logical MRTD and TSF data, correctness of TSF. T.Information_Leakage Information Leakage from MRTD‟s chip An attacker may exploit information which is leaked from the TOE during its usage in order to disclose confidential TSF data. The information leakage may be inherent in the normal operation or caused by the attacker. Leakage may occur through emanations, variations in power consumption, I/O characteristics, clock frequency, or by changes in processing time requirements. This leakage may be interpreted as a covert channel transmission but is more closely related to measurement of operating parameters which may be derived either from measurements of the communication interfaces (emanation) or direct measurements (by contact to the chip still available even for a contactless chip) and can then be related to the specific operation being performed. Examples are the Differential Electromagnetic Analysis (DEMA) and the Differential Power Analysis (DPA). Moreover the attacker may try actively to enforce information leakage by fault injection (e.g. Differential Fault Analysis). The attacker has enhanced basic attack potential and is in possession of a legitimate MRTD. Threatened asset is confidentiality of logical MRTD and TSF data. T.Phys-Tamper Physical Tampering An attacker may perform physical probing of the MRTD‘s chip in order (i) to disclose TSF Data, or (ii) to disclose/reconstruct the MRTD‘s chip Embedded Software. An attacker may physically modify the MRTD‘s chip in order to (i) modify security features or functions of the MRTD‘s chip, (ii) modify security functions of the MRTD‘s chip Embedded Software, (iii) modify User Data or (iv) to modify TSF data. The physical tampering may be focused directly on the disclosure or manipulation of TOE User Data (e.g. the biometric reference data for the inspection system) or TSF Data (e.g. authentication key of the MRTD‘s chip) or indirectly by preparation of the TOE to following attack methods by modification of security features (e.g. to enable information leakage through power analysis). Physical tampering requires direct interaction with the MRTD‘s chip internals. Techniques commonly employed in IC failure analysis and IC reverse engineering efforts may be used. Before that, the hardware security mechanisms and layout characteristics need to be identified. Determination of software design including treatment of User Data and TSF Data may also be a pre-requisite. The modification may result in the deactivation of a security function. Changes of circuitry or data can be permanent or temporary. The attacker has enhanced basic attack potential and is in possession of a legitimate MRTD. Threatened assets are confidentiality and authenticity of logical MRTD and TSF data, correctness of TSF. T.Malfunction Malfunction due to Environmental Stress An attacker may cause a malfunction of TSF or of the MRTD‘s chip Embedded Software by applying environmental stress in order to (i) deactivate or modify security features or functions of the TOE or (ii) circumvent, deactivate or modify security functions of the MRTD‘s chip Embedded Software. This may be achieved e.g. by operating the MRTD‘s chip outside the normal operating conditions, exploiting errors in the MRTD‘s chip Embedded Software or misusing administration function. To exploit these vulnerabilities an attacker needs information about the functional operation. The attacker has enhanced basic attack potential and is in possession of a legitimate MRTD. Threatened assets are confidentiality and authenticity of logical MRTD and TSF data, correctness of TSF. T.MOD_SOFT Unauthorized Software Modification An attacker may perform unauthorized modification of Smart Card Embedded Software using the patch mechanism or the Card Content Loading and Installation mechanism. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 24 of 68 3.6. Organisational Security Policies The TOE shall comply with the following Organizational Security Policies (OSP) as security rules, procedures, practices, or guidelines imposed by an organization upon its operations. P.Manufact Manufacturing of the MRTD‟s chip The Initialization Data are written by the IC Manufacturer to identify the IC uniquely. The MRTD Manufacturer writes the Pre-personalization Data which contains at least the Personalization Agent Key. P.Personalization Personalization of the MRTD by issuing State or Organization only The issuing State or Organization guarantees the correctness of the biographical data, the printed portrait and the digitized portrait, the biometric reference data and other data of the logical MRTD with respect to the MRTD holder. The personalization of the MRTD for the holder is performed by an agent authorized by the issuing State or Organization only. P.Personal_Data Personal data protection policy The biographical data and their summary printed in the MRZ and stored on the MRTD‘s chip (EF.DG1), the printed portrait and the digitized portrait (EF.DG2), the biometric reference data of finger(s) (EF.DG3), the biometric reference data of iris image(s) (EF.DG4)3 and data according to LDS (EF.DG5 to EF.DG13, EF.DG16) stored on the MRTD‘s chip are personal data of the MRTD holder. These data groups are intended to be used only with agreement of the MRTD holder by inspection systems to which the MRTD is presented. The MRTD‘s chip shall provide the possibility for the Basic Access Control to allow read access to these data only for terminals successfully authenticated based on knowledge of the Document Basic Access Keys as defined in [15]. Application note: The organizational security policy P.Personal_Data is drawn from the ICAO „ICAO Doc 9303‟ [15]. Note that the Document Basic Access Key is defined by the TOE environment and loaded to the TOE by the Personalization Agent. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 25 of 68 4. Security Objectives This chapter describes the security objectives for the TOE and the security objectives for the TOE environment. The security objectives for the TOE environment are separated into security objectives for the development and production environment and security objectives for the operational environment. 4.1. SOs for the TOE This section describes the security objectives for the TOE addressing the aspects of identified threats to be countered by the TOE and organizational security policies to be met by the TOE. OT.AC_Pers Access Control for Personalization of logical MRTD The TOE must ensure that the logical MRTD data in EF.DG1 to EF.DG16, the Document security object according to LDS [15] and the TSF data can be written by authorized Personalization Agents only. The logical MRTD data in EF.DG1 to EF.DG16 and the TSF data may be written only during and cannot be changed after its personalization. The Document security object can be updated by authorized Personalization Agents if data in the data groups EF.DG3 to EF.DG16 are added. Application note: The OT.AC_Pers implies that: (3) the data of the LDS groups written during personalization for MRTD holder (at least EF.DG1 and EF.DG2) cannot be changed by write access after personalization, (4) the Personalization Agents may (i) add (fill) data into the LDS data groups not written yet, and (ii) update and sign the Document Security Object accordingly. The support for adding data in the “Operational Use” phase is optional. OT.Data_Int Integrity of personal data The TOE must ensure the integrity of the logical MRTD stored on the MRTD‘s chip against physical manipulation and unauthorized writing. The TOE must ensure the integrity of the logical MRTD data during their transmission to the General Inspection System after Chip Authentication. OT.Data_Conf Confidentiality of personal data The TOE must ensure the confidentiality of the logical MRTD data groups EF.DG1 to EF.DG16. Read access to EF.DG1 to EF.DG16 is granted to terminals successfully authenticated as Personalization Agent. Read access to EF.DG1, EF.DG2 and EF.DG5 to EF.DG16 is granted to terminals successfully authenticated as Basic Inspection System. The Basic Inspection System shall authenticate itself by means of the Basic Access Control based on knowledge of the Document Basic Access Key. The TOE must ensure the confidentiality of the logical MRTD data during their transmission to the Basic Inspection System. Application note: The traveler grants the authorization for reading the personal data in EF.DG1, EF.DG2 and EF.DG5 to EF.DG16 to the inspection system by presenting the MRTD. The MRTD‟s chip shall provide read access to these data for terminals successfully authenticated by means of the Basic Access Control based on knowledge of the Document Basic Access Keys.The security objective OT.Data_Conf requires the TOE to ensure the strength of the security function Basic Access Control Authentication. The Document Basic Access Keys are derived from the MRZ data defined by the TOE environment and are loaded into the TOE by the Personalization Agent. Therefore the sufficient quality of these keys has to result from the MRZ data‟s entropy. Any attack based on decision of the „ICAO Doc 9303‟ [15] that the inspection system derives Document Basic Access is ensured by OE.BAC-Keys. Note that the authorization for reading the biometric data in EF.DG3 and EF.DG4 is only granted after successful Enhanced Access Control not covered by this TOE. Thus the read access must be prevented even in case of a successful BAC Authentication. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 26 of 68 OT.Identification Identification and Authentication of the TOE The TOE must provide means to store IC Identification and Pre-Personalization Data in its nonvolatile memory. The IC Identification Data must provide a unique identification of the IC during Phase 2 ―Manufacturing‖ and Phase 3 ―Personalization of the MRTD‖. The storage of the Pre- Personalization data includes writing of the Personalization Agent Key(s). In Phase 4 ―Operational Use‖ the TOE shall identify itself only to a successful authenticated Basic Inspection System or Personalization Agent. Application note: The TOE security objective OT.Identification addresses security features of the TOE to support the lifecycle security in the manufacturing and personalization phases. The IC Identification Data are used for TOE identification in Phase 2 “Manufacturing” and for traceability and/or to secure shipment of the TOE from Phase 2 “Manufacturing” into the Phase 3 “Personalization of the MRTD”. The OT.Identification addresses security features of the TOE to be used by the TOE manufacturing. In the Phase 4 “Operational Use” the TOE is identified by the Document Number as part of the printed and digital MRZ. The OT.Identification forbids the output of any other IC (e.g. integrated circuit card serial number ICCSN) or MRTD identifier through the physical interfaces before successful authentication as Basic Inspection System or as Personalization Agent. OT.AA_Proof Proof of MRTD‟s chip authenticity by Active Authentication The TOE may support the Basic Inspection Systems to verify the identity and authenticity of the MRTD‘s chip as issued by the identified issuing State or Organization by means of the Active Authentication as defined in [15]. The following TOE security objectives address the protection provided by the MRTD‘s chip independent of the TOE environment. OT.Prot_Abuse-Func Protection against Abuse of Functionality After delivery of the TOE to the MRTD Holder, the TOE must prevent the abuse of test and support functions that may be maliciously used to (i) disclose critical User Data, (ii) manipulate critical User Data of the IC Embedded Software, (iii) manipulate Soft-coded IC Embedded Software or (iv) bypass, deactivate, change or explore security features or functions of the TOE. Details of the relevant attack scenarios depend, for instance, on the capabilities of the Test Features provided by the IC Dedicated Test Software which are not specified here. OT.Prot_Inf_Leak Protection against Information Leakage The TOE must provide protection against disclosure of confidential TSF data stored and/or processed in the MRTD‘s chip  by measurement and analysis of the shape and amplitude of signals or the time between events found by measuring signals on the electromagnetic field, power consumption, clock, or I/O lines and  by forcing a malfunction of the TOE and/or  by a physical manipulation of the TOE. Application note: This objective pertains to measurements with subsequent complex signal processing due to normal operation of the TOE or operations enforced by an attacker. Details correspond to an analysis of attack scenarios which is not given here. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 27 of 68 OT.Prot_Phys-Tamper Protection against Physical Tampering The TOE must provide protection of the confidentiality and integrity of the User Data, the TSF Data, and the MRTD‘s chip Embedded Software. This includes protection against attacks with high attack potential by means of  measuring through galvanic contacts which is direct physical probing on the chips surface except on pads being bonded (using standard tools for measuring voltage and current) or  measuring not using galvanic contacts but other types of physical interaction between charges (using tools used in solid-state physics research and IC failure analysis)  manipulation of the hardware and its security features, as well as  controlled manipulation of memory contents (User Data, TSF Data) with a prior  reverse-engineering to understand the design and its properties and functions. OT.Prot_Malfunction Protection against Malfunctions The TOE must ensure its correct operation. The TOE must prevent its operation outside the normal operating conditions where reliability and secure operation has not been proven or tested. This is to prevent errors. The environmental conditions may include external energy (esp. electromagnetic) fields, voltage (on any contacts), clock frequency, or temperature. Application note: A malfunction of the TOE may also be caused using a direct interaction with elements on the chip surface. This is considered as being a manipulation (refer to the objective OT.Prot_Phys- Tamper) provided that detailed knowledge about the TOE´s internals. OT.CCLI_END Secure termination of Card Content Loading and Installation The TOE shall ensure that a mechanism to close the TOE in post issuance is available to the Manufacturer. Terminating Card Content Loading and Installation feature implies that it is not possible for an attacker to load any applet in the card using the GlobalPlatform Card Content Management interfaces. OT.PATCH_SEC Secure Patch Mechanism The TOE must ensure continued correct operation of the patch mechanism. The TOE shall prevent the alteration of its patch mechanism: mis-routing and load of illegal patches. OT.PATCH_END Secure termination of Patching The TOE shall ensure that a mechanism to close the TOE patching mechanism is available to the Manufacturer. Terminating patching feature implies that it is not possible for an attacker to load any patch in the card. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 28 of 68 4.2. SOs for the Environment 4.2.1. Issuing State or Organization The issuing State or Organization will implement the following security objectives of the TOE environment. OE.MRTD_Manufact Protection of the MRTD Manufacturing Appropriate functionality testing of the TOE shall be used in step 4 to 6. During all manufacturing and test operations, security procedures shall be used through phases 4, 5 and 6 to maintain confidentiality and integrity of the TOE and its manufacturing and test data. OE.MRTD_Delivery Protection of the MRTD delivery Procedures shall ensure protection of TOE material/information under delivery including the following objectives: - non-disclosure of any security relevant information, - identification of the element under delivery, - meet confidentiality rules (confidentiality level, transmittal form, reception acknowledgment), - physical protection to prevent external damage, - secure storage and handling procedures (including rejected TOE‘s), - traceability of TOE during delivery including the following parameters: • origin and shipment details, • reception, reception acknowledgement, • location material/information. 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. 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 be able to act fully in accordance with the above expectations. OE.Personalization Personalization of logical MRTD The issuing State or Organization must ensure that the Personalization Agents acting on behalf of the issuing State or Organization (i) establish the correct identity of the holder and create biographical data for the MRTD, (ii) enroll the biometric reference data of the MRTD holder i.e. the portrait, the encoded finger image(s) and/or the encoded iris image(s) and (iii) personalize the MRTD for the holder together with the defined physical and logical security measures to protect the confidentiality and integrity of these data. OE.Pass_Auth_Sign Authentication of logical MRTD by Signature The issuing State or Organization must (i) generate a cryptographic secure Country Signing CA Key Pair, (ii) ensure the secrecy of the Country Signing CA Private Key and sign Document Signer Certificates in a secure operational environment, and (iii) distribute the Certificate of the Country Signing CA Public Key to receiving States and Organizations maintaining its authenticity and integrity. The issuing State or Organization must (i) generate a cryptographic secure Document Signer Key Pair and ensure the secrecy of the Document Signer Private Keys, (ii) sign Document Security Objects of genuine MRTD in a secure operational environment only and (iii) distribute the Certificate of the Document Signer Public Key to receiving States and Organizations. The digital signature in the Document Security Object relates to all data in the data in EF.DG1 to EF.DG16 if stored in the LDS according to [15]. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 29 of 68 OE.BAC-Keys Cryptographic quality of Basic Access Control Keys The Document Basic Access Control Keys being generated and imported by the issuing State or Organization have to provide sufficient cryptographic strength. As a consequence of the ‗ICAO Doc 9303‘ [15] the Document Basic Access Control Keys are derived from a defined subset of the individual printed MRZ data. It has to be ensured that these data provide sufficient entropy to withstand any attack based on the decision that the inspection system has to derive Document Basic Access Keys from the printed MRZ data with enhanced basic attack potential. OE.Active_Auth_Key Active Authentication Key The issuing State or Organization may establish the necessary public key infrastructure in order to: - Generate the MRTD‘s Active Authentication Key Pair, - Sign and store the Active Authentication Public Key in the Active Authentication Public Key data in EF.DG15 and - Support inspection systems of receiving States or Organizations to verify the authenticity of the MRTD‘s chip used for genuine MRTD by certification of the Active Authentication Public Key by means of the Document Security Object 4.2.2. Receiving State or Organization The receiving State or Organization will implement the following security objectives of the TOE environment. OE.Exam_MRTD Examination of the MRTD passport book The inspection system of the receiving State or Organization must examine the MRTD presented by the traveler to verify its authenticity by means of the physical security measures and to detect any manipulation of the physical MRTD. The Basic Inspection System for global interoperability (i) includes the Country Signing Public Key and the Document Signer Public Key of each issuing State or Organization, and (ii) implements the terminal part of the Basic Access Control [15]. OE.Exam_MRTD_AA Examination of the MRTD passport book using Active Authentication During examination of the MRTD presented by the traveler, the basic inspection system may follow the Active Authentication Protocol to verify the authenticity of the presented MRTD‘s chip. OE.Passive_Auth_Verif Verification by Passive Authentication The border control officer of the receiving State uses the inspection system to verify the traveler as MRTD holder. The inspection systems must have successfully verified the signature of Document Security Objects and the integrity data elements of the logical MRTD before they are used. The receiving States and Organizations must manage the Country Signing Public Key and the Document Signer Public Key maintaining their authenticity and availability in all inspection systems. OE.Prot_Logical_MRTD Protection of data from the logical MRTD The inspection system of the receiving State or Organization ensures the confidentiality and integrity of the data read from the logical MRTD. The receiving State examining the logical MRTD being under Basic Access Control will use inspection systems which implement the terminal part of the Basic Access Control and use the secure messaging with fresh generated keys for the protection of the transmitted data (i.e. Basic Inspection Systems). Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 30 of 68 4.3. Security objectives rationale All the security objectives described in the ST are traced back to items described in the TOE security environment and any items in the TOE security environment are covered by those security objectives appropriately. 4.3.1. Security Objectives Coverage The following able indicates that all security objectives of the TOE are traced back to threats and/or organizational security policies and that all security objectives of the environment are traced back to threats, organizational security policies and/or assumptions. Threats Assumptions Policies / Security objectives OT.AC_Pers OT.Data_Int OT.Data_Conf OT.Identification OT.Prot_Abuse-Func OT.Prot_Inf_Leak OT.Prot_Phys-Tamper OT.Prot_Malfunction OT.AA_Proof OT.CCLI_END OT.PATCH_SEC OT.PATCH_END OE.MRTD_Manufact OE.MRTD_Delivery OE.Personalization OE.Pass_Auth_Sign OE.BAC-Keys OE.Exam_MRTD OE.Exam_MRTD_AA OE.Active_Auth_Key OE.Passive_Auth_Verif OE.Prot_Logical_MRTD T.Chip_ID X X T.Skimming X X T.Eavesdropping X T.Forgery X X X X X X T.Counterfeit X X X X X T.Abuse-Func X X T.Information_Leakage X T.Phys-Tamper X T.Malfunction X T.MOD_SOFT X X X P.Manufact X P.Personalization X X X P.Personal_Data X X A.MRTD_Manufact X A.MRTD_Delivery X A.Pers_Agent X A.Pers_Agent_AA X A.Insp_Sys X X A.Insp_Sys_AA X A.BAC-Keys X Table 1 – Security Environment to Security Objectives Mapping Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 31 of 68 4.3.2. Security Objectives Sufficiency 4.3.2.1. Policies and Security Objective Sufficiency The OSP P.Manufact “Manufacturing of the MRTD’s chip” requires a unique identification of the IC by means of the Initialization Data and the writing of the Pre-personalization Data as being fulfilled by OT.Identification. The OSP P.Personalization “Personalization of the MRTD by issuing State or Organization only” addresses the (i) the enrolment of the logical MRTD by the Personalization Agent as described in the security objective for the TOE environment OE.Personalization ―Personalization of logical MRTD‖, and (ii) the access control for the user data and TSF data as described by the security objective OT.AC_Pers ―Access Control for Personalization of logical MRTD‖. Note the manufacturer equips the TOE with the Personalization Agent Key(s) according to OT.Identification ―Identification and Authentication of the TOE‖. The security objective OT.AC_Pers limits the management of TSF data and management of TSF to the Personalization Agent. The OSP P.Personal_Data “Personal data protection policy” requires the TOE (i) to support the protection of the confidentiality of the logical MRTD by means of the Basic Access Control and (ii) enforce the access control for reading as decided by the issuing State or Organization. This policy is implemented by the security objectives OT.Data_Int ―Integrity of personal data‖ describing the unconditional protection of the integrity of the stored data and during transmission. The security objective OT.Data_Conf ―Confidentiality of personal data‖ describes the protection of the confidentiality. 4.3.2.2. Threats and Security Objective Sufficiency The threat T.Chip_ID “Identification of MRTD’s chip” addresses the trace of the MRTD movement by identifying remotely the MRTD‘s chip through the physical communication interface. This threat is countered as described by the security objective OT.Identification by Basic Access Control using sufficiently strong derived keys as required by the security objective for the environment OE.BAC-Keys. The threat T.Skimming “Skimming digital MRZ data or the digital portrait” and T.Eavesdropping “Eavesdropping to the communication between TOE and inspection system” address the reading of the logical MRTD trough the physical communication interface or listening the communication between the MRTD‘s chip and a terminal. This threat is countered by the security objective OT.Data_Conf ―Confidentiality of personal data‖ through Basic Access Control using sufficiently strong derived keys as required by the security objective for the environment OE.BAC-Keys. The threat T.Forgery “Forgery of data on MRTD’s chip” addresses the fraudulent alteration of the complete stored logical MRTD or any part of it. The security objective OT.AC_Pers ―Access Control for Personalization of logical MRTD― requires the TOE to limit the write access for the logical MRTD to the trustworthy Personalization Agent (cf. OE.Personalization). The TOE will protect the integrity of the stored logical MRTD according the security objective OT.Data_Int ―Integrity of personal data‖ and OT.Prot_Phys- Tamper ―Protection against Physical Tampering‖. The examination of the presented MRTD passport book according to OE.Exam_MRTD ―Examination of the MRTD passport book‖ shall ensure that passport book does not contain a sensitive chip which may present the complete unchanged logical MRTD. The TOE environment will detect partly forged logical MRTD data by means of digital signature which will be created according to OE.Pass_Auth_Sign ―Authentication of logical MRTD by Signature‖ and verified by the inspection system according to OE.Passive_Auth_Verif ―Verification by Passive Authentication‖. The threat T.Abuse-Func “Abuse of Functionality” addresses attacks using the MRTD‘s chip as production material for the MRTD and misuse of the functions for personalization in the operational state after delivery to MRTD holder to disclose or to manipulate the logical MRTD. This threat is countered by OT.Prot_Abuse-Func ―Protection against Abuse of Functionality‖. Additionally this objective is supported by the security objective for the TOE environment: OE.Personalization ―Personalization of logical MRTD‖ ensuring that the TOE security functions for the initialization and the personalization are disabled and the security functions for the operational state after delivery to MRTD holder are enabled according to the intended use of the TOE. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 32 of 68 The threats T.Information_Leakage “Information Leakage from MRTD’s chip”, T.Phys-Tamper “Physical Tampering” and T.Malfunction “Malfunction due to Environmental Stress” are typical for integrated circuits like smart cards under direct attack with high attack potential. The protection of the TOE against these threats is addressed by the directly related security objectives OT.Prot_Inf_Leak ―Protection against Information Leakage‖, OT.Prot_Phys-Tamper ―Protection against Physical Tampering‖ and OT.Prot_Malfunction ―Protection against Malfunctions‖. The threat T.MOD_SOFT “Unauthorized Software Modification” deals with the alteration of loaded and installed software or more generally Applicative Card Content. This threat is in general addressed by OT.CCLI_END, OT.PATCH_SEC, and OT.PATCH_END. OT.CCLI_END guarantees that the Card Content Loading and Installing mechanism is no longer available once it is terminated. OT.PATCH_SEC guarantees that once terminated (in the User Phase), the patch mechanism cannot be corrupted (by loading illegal patches or altering existing patches). OT.PATCH_END guarantees that the patch loading is no longer available once it is terminated. The threat T.Counterfeit “MRTD’s chip” addresses the attack of unauthorised copy or reproduction of the genuine MRTD chip. This attack is thwarted by a set of objectives that ensure that MRTD‘s chip data are not copied from the TOE: OT.Prot_Abuse-Func, OT.Prot_Inf_Leak, OT.Prot_Phys-Tamper, and OT.Prot_Malfunction. In addition, when the MRTD supports Active Authentication, the TOE addresses additional protections against this threat: OT.AA_Proof ―Proof of MRTD‘s chip authenticity by Active Authentication‖, OE.Exam_MRTD_AA ―Examination of the MRTD passport book using Active Authentication‖ and OE.Active_Auth_Key ―Active Authentication Key‖ all participate in the detection of counterfeit MRTD‘s chip by the inspection system. These objectives ensure that no data may be copied from the TOE. 4.3.2.3. Assumptions and Security Objective Sufficiency The assumption A.MRTD_Manufact “MRTD manufacturing on step 4 to 6” is covered by the security objective for the TOE environment OE.MRTD_Manufact ―Protection of the MRTD Manufacturing‖ that requires to use security procedures during all manufacturing steps. The assumption A.MRTD_Delivery “MRTD delivery during step 4 to 6” is covered by the security objective for the TOE environment OE.MRTD_ Delivery ―Protection of the MRTD delivery‖ that requires to use security procedures during delivery steps of the MRTD. The assumption A.Pers_Agent “Personalization of the MRTD’s chip” is covered by the security objective for the TOE environment OE.Personalization ―Personalization of logical MRTD‖ including the enrolment, the protection with digital signature and the storage of the MRTD holder personal data. The assumption A.Pers_Agent_AA “Personalization of the MRTD’s chip including Active Authentication” is covered by the security objective for the TOE environment OE.Personalization ―Personalization of logical MRTD‖ including the protection with a digital signature (SOD signing), the storage of the MRTD holder personal data and the support of Active Authentication Protocol according to the decision of the issuing State or Organization. The examination of the MRTD passport book addressed by the assumption A.Insp_Sys “Inspection Systems for global interoperability” is covered by the security objectives for the TOE environment OE.Exam_MRTD ―Examination of the MRTD passport book‖. The security objectives for the TOE environment OE.Prot_Logical_MRTD ―Protection of data from the logical MRTD‖ will require the Basic Inspection System to implement the Basic Access Control and to protect the logical MRTD data during the transmission and the internal handling. The examination of the MRTD passport book addressed by the assumption A.Insp_Sys_AA “Inspection Systems for global interoperability with Active Authentication” is covered by the security objectives for the TOE environment OE.Exam_MRTD_AA ―Examination of the MRTD passport book using Active Authentication‖ which requires the Basic Inspection System to implement and to enforce Active Authentication of the MRTD as part of the MRTD‘s inspection. The assumption A.BAC-Keys “Cryptographic quality of Basic Access Control Keys” is directly covered by the security objective for the TOE environment OE.BAC-Keys ―Cryptographic quality of Basic Access Control Keys‖ ensuring the sufficient key quality to be provided by the issuing State or Organization. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 33 of 68 5. Extended Components Definition This ST contains the following extended component defined as extensions to CC part 2 in the claimed PP [5]:  SFR FAU_SAS ‗Audit data storage‘  SFR FCS_RND ‗Generation of random numbers‘  SFR FIA_API ‗Authentication Proof of Identity‘  SFR FMT_LIM ‗Limited capabilities and availability‘  SFR FPT_EMSEC.1 ‗TOE emanation‘ 5.1. Audit data storage (FAU_SAS) To define the security functional requirements of the TOE, a sensitive family (FAU_SAS) of the Class FAU (Security Audit) is defined here. This family describes the functional requirements for the storage of audit data. It has a more general approach than FAU_GEN, because it does not necessarily require the data to be generated by the TOE itself and because it does not give specific details of the content of the audit records. The family ―Audit data storage (FAU_SAS)‖ is specified as follows. FAU_SAS Audit data storage Family behavior This family defines functional requirements for the storage of audit data. Component leveling: FAU_SAS.1 Requires the TOE to provide the possibility to store audit data. Management: FAU_SAS.1 There are no management activities foreseen. Audit: FAU_SAS.1 There are no actions defined to be auditable. FPT_EMSEC.1 TOE Emanation Hierarchical to: No other components. Dependencies: No dependencies. FAU_SAS.1.1 The TSF shall provide [assignment: authorized users] with the capability to store [assignment: list of audit information] in the audit records. FAU_SAS Audit data storage 1 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 34 of 68 5.2. Generation of random numbers (FCS_RND) To define the IT security functional requirements of the TOE, a sensitive family (FCS_RND) of the Class FCS (cryptographic support) is defined here. This family describes the functional requirements for random number generation used for cryptographic purposes. The component FCS_RND is not limited to generation of cryptographic keys unlike the component FCS_CKM.1. The similar component FIA_SOS.2 is intended for non-cryptographic use. The family ―Generation of random numbers (FCS_RND)‖ is specified as follows. FCS_RND Generation of random numbers Family behavior This family defines quality requirements for the generation of random numbers which are intended to be used for cryptographic purposes. Component leveling: FCS_RND.1 Generation of random numbers requires that random numbers meet a defined quality metric. Management: FCS_RND.1 There are no management activities foreseen. Audit: FCS_RND.1 There are no actions defined to be auditable. FCS_RND.1 Quality metric for random numbers Hierarchical to: No other components. Dependencies: No dependencies. FCS_RND.1.1 The TSF shall provide a mechanism to generate random numbers that meet [assignment: a defined quality metric]. FCS_RND Generation of random numbers 1 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 35 of 68 5.3. Authentication Proof of Identity (FIA_API) To describe the IT security functional requirements of the TOE a sensitive family (FIA_API) of the Class FIA (Identification and authentication) is defined here. This family describes the functional requirements for the proof of the claimed identity for the authentication verification by an external entity where the other families of the class FIA address the verification of the identity of an external entity. Application note: The other families of the Class FIA describe only the authentication verification of users‟ identity performed by the TOE and do not describe the functionality of the user to prove their identity. The following paragraph defines the family FIA_API in the style of the Common Criteria part 2 (cf. [3], chapter “Explicitly stated IT security requirements (APE_SRE)”) from a TOE point of view. FIA_API Authentication Proof of Identity Family behavior This family defines functions provided by the TOE to prove their identity and to be verified by an external entity in the TOE IT environment. Component leveling: FIA_API.1 Authentication Proof of Identity. Management: FIA_API.1 The following actions could be considered for the management functions in FMT: Management of authentication information used to prove the claimed identity. Audit: FIA_API.1 There are no actions defined to be auditable. FIA_API.1 Authentication Proof of Identity Hierarchical to: No other components. Dependencies: No dependencies. FIA_API.1.1 The TSF shall provide a [assignment: authentication mechanism] to prove the identity of the [assignment: authorized user or role]. FIA_API Authentication Proof of Identity 1 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 36 of 68 5.4. Limited capabilities and availability (FMT_LIM) The family FMT_LIM describes the functional requirements for the Test Features of the TOE. The new functional requirements were defined in the class FMT because this class addresses the management of functions of the TSF. The examples of the technical mechanism used in the TOE show that no other class is appropriate to address the specific issues of preventing the abuse of functions by limiting the capabilities of the functions and by limiting their availability. The family ―Limited capabilities and availability (FMT_LIM)‖ is specified as follows. FMT_LIM Limited capabilities and availability Family behavior This family defines requirements that limit the capabilities and availability of functions in a combined manner. Note, that FDP_ACF restricts the access to functions whereas the Limited capability of this family requires the functions themselves to be designed in a specific manner. Component leveling: FMT_LIM.1 Limited capabilities requires that the TSF is built to provide only the capabilities (perform action, gather information) necessary for its genuine purpose. FMT_LIM.2 Limited availability requires that the TSF restrict the use of functions (refer to Limited capabilities (FMT_LIM.1)). This can be achieved, for instance, by removing or by disabling functions in a specific phase of the TOE’s lifecycle. Management: FMT_LIM.1, FMT_LIM.2 There are no management activities foreseen. Audit: FMT_LIM.1, FMT_LIM.2 There are no actions defined to be auditable. To define the IT security functional requirements of the TOE a sensitive family (FMT_LIM) of the Class FMT (Security Management) is defined here. This family describes the functional requirements for the Test Features of the TOE. The new functional requirements were defined in the class FMT because this class addresses the management of functions of the TSF. The examples of the technical mechanism used in the TOE show that no other class is appropriate to address the specific issues of preventing the abuse of functions by limiting the capabilities of the functions and by limiting their availability. The TOE Functional Requirement ―Limited capabilities (FMT_LIM.1)‖ is specified as follows. FMT_LIM.1 Limited capabilities Hierarchical to: No other components. Dependencies: FMT_LIM.2 Limited availability. FMT_LIM Limited capabilities and availability 1 2 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 37 of 68 FMT_LIM.1.1 The TSF shall be designed in a manner that limits their capabilities so that in conjunction with “Limited availability (FMT_LIM.2)” the following policy is enforced [assignment: Limited capability and availability policy]. The TOE Functional Requirement ―Limited availability (FMT_LIM.2)‖ is specified as follows. FMT_LIM.2 Limited availability Hierarchical to: No other components. Dependencies: FMT_LIM.1 Limited capabilities. FMT_LIM.2.1 The TSF shall be designed in a manner that limits their availability so that in conjunction with “Limited capabilities (FMT_LIM.1)” the following policy is enforced [assignment: Limited capability and availability policy]. Application note: The functional requirements FMT_LIM.1 and FMT_LIM.2 assume that there are two types of mechanisms (limited capabilities and limited availability) which together shall provide protection in order to enforce the policy. This also allows that: (i) the TSF is provided without restrictions in the product in its user environment but its capabilities are so limited that the policy is enforced or conversely (ii) the TSF is designed with test and support functionality that is removed from, or disabled in, the product prior to the Operational Use Phase. The combination of both requirements shall enforce the policy. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 38 of 68 5.5. TOE emanation (FPT_EMSEC.1) The sensitive family FPT_EMSEC (TOE Emanation) of the Class FPT (Protection of the TSF) is defined here to describe the IT security functional requirements of the TOE. The TOE shall prevent attacks against the TOE and other secret data where the attack is based on external observable physical phenomena of the TOE. Examples of such attacks are evaluation of TOE‘s electromagnetic radiation, simple power analysis (SPA), differential power analysis (DPA), timing attacks, etc. This family describes the functional requirements for the limitation of intelligible emanations which are not directly addressed by any other component of CC part 2 [2]. The family ―TOE Emanation (FPT_EMSEC)‖ is specified as follows. Family behavior This family defines requirements to mitigate intelligible emanations. Component leveling: FPT_EMSEC.1 TOE Emanation has two constituents: FPT_EMSEC.1.1 Limit of Emissions requires to not emit intelligible emissions enabling access to TSF data or user data. FPT_EMSEC.1.2 Interface Emanation requires not to emit interface emanation enabling access to TSF data or user data. Management: FPT_EMSEC.1 There are no management activities foreseen. Audit: FPT_EMSEC.1 There are no actions defined to be auditable. FPT_EMSEC.1 TOE Emanation Hierarchical to: No other components. Dependencies: No dependencies. FPT_EMSEC.1.1 The TOE shall not emit [assignment: types of emissions] in excess of [assignment: specified limits] enabling access to [assignment: list of types of TSF data] and [assignment: list of types of user data]. FPT_EMSEC.1.2 The TSF shall ensure [assignment: type of users] are unable to use the following interface [assignment: type of connection] to gain access to [assignment: list of types of TSF data] and [assignment: list of types of user data]. FPT_EMSEC TOE emanation 1 Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 39 of 68 6. Security Requirements This chapter gives the security functional requirements and the security assurance requirements for the TOE. Some security functional requirements represent extensions to [2]. Operations for assignment, selection and refinement have been made and are designated by an underline (e.g. none), in addition, where operations that were uncompleted in the PP [4] are also identified by italic underlined type. The TOE security assurance requirements statement given in section 6.2 is drawn from the security assurance components from Common Criteria part 3 [3]. The definition of the subjects ―Manufacturer‖, ―Personalization Agent‖, ―Basic Inspection System‖ and ―Terminal‖ used in the following chapter is given in section 3.2. Note, that all these subjects are acting for homonymous external entities. All used objects are defined in section 9. The operations ―write‖, ―read‖, ―modify‖, and ―disable read access‖ are used in accordance with the general linguistic usage. The operations ―transmit‖, ―receive‖ and ―authenticate‖ are originally taken from [2]. Definition of security attributes: Security attribute Values Meaning Terminal authentication status none (any Terminal) default role (i.e. without authorisation after start-up) Basic Inspection System Terminal is authenticated as Basic Inspection System after successful Authentication in accordance with the definition in rule 2 of FIA_UAU.5.2. Personalisation Agent Terminal is authenticated as Personalisation Agent after successful Authentication in accordance with the definition in rule 1 of FIA_UAU.5.2. The following table provides an overview of the keys used: Name Data Active Authentication Key Pair The Active Authentication asymmetric Key Pair (KPrAA, KPuAA) is used for the Active Authentication Protocol: allowing the chip to be authenticated as genuine by the inspection system. Active Authentication Private Key (KPrAA) The Active Authentication Private Key (KPrAA) is used by the TOE to be authenticated as a genuine MRTD‘s chip by the inspection system. It is part of the TSF data. Active Authentication Public Key (KPuAA) The Active Authentication Public Key (KPuAA) is stored in the EF.DG15 Active Authentication Public Key of the TOE‘s logical MRTD and used by the inspection system for Active Authentication of the MRTD‘s chip. It is part of the user data provided by the TOE for the IT environment. Country Signing Certification Authority Key Pair Country Signing Certification Authority of the issuing State or Organization signs the Document Signer Public Key Certificate with the Country Signing Certification Authority Private Key and the signature will be verified by receiving State or Organization (e.g. a Basic Inspection System) with the Country Signing Certification Authority Public Key. Document Signer Key Pairs Document Signer of the issuing State or Organization signs the Document Security Object of the logical MRTD with the Document Signer Private Key and the signature will be verified by a Basic Inspection Systems of the receiving State or Organization with the Document Signer Public Key. Document Basic Access Keys The Document Basic Access Key is created by the Personalization Agent, loaded to the TOE, and used for mutual authentication and key agreement for secure messaging between the Basic Inspection System and the MRTD‘s chip. BAC Session Keys Secure messaging TDES key and Retail-MAC key agreed between the TOE and a Basic Inspection System in result of the Basic Access Control Authentication Protocol. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 40 of 68 6.1. TOE Security Functional Requirements 6.1.1. Security Audit (FAU) 6.1.1.1. Audit Storage (FAU_SAS.1) FAU_SAS.1.1 The TSF shall provide the Manufacturer with the capability to store the IC Identification Data in the audit records. Application note: The Manufacturer role is the default user identity assumed by the TOE in the Phase 2 Manufacturing. The IC manufacturer and the MRTD manufacturer in the Manufacturer role write the Initialization Data and/or Pre-personalization Data as TSF Data of the TOE. The audit records are write- only-once data of the MRTD‟s chip (see FMT_MTD.1/INI_DIS). 6.1.2. Cryptographic support (FCS) Function Algorithm Key Size(s) Basic Access Authentication TDES CBC 112 bits Active Authentication Signature generation RSA signature based on ISO9796-2 scheme 1 [17] 1024, 1280, 1536, 2048, 3072 bits Secure Messaging ENC/DEC TDES CBC 112 bits MAC Retail MAC 112 bits 6.1.2.1. Cryptographic key generation (FCS_CKM.1)  Generation of Document Basic Access Keys by the TOE FCS_CKM.1.1/ BAC The TSF shall generate cryptographic keys in accordance with a specified cryptographic key generation algorithm Document Basic Access Key Derivation Algorithm and specified cryptographic key sizes 112 bit that meet the following: [4], normative appendix 5. Application note: The TOE is equipped with the Document Basic Access Key generated and downloaded by the Personalization Agent. The Basic Access Control Authentication Protocol described in [16], normative appendix 5, A5.2, produces agreed parameters to generate the Triple- DES (TDES) key and the Retail-MAC message authentication keys for secure messaging by the algorithm in [16], Normative appendix A5.1. The algorithm uses the random number RND.ICC generated by TSF as required by FCS_RND.1.  Generation of Active Authentication Key Pair by the TOE FCS_CKM.1.1/ KP The TSF shall generate cryptographic keys in accordance with a specified cryptographic key generation algorithm RSA key pair generation and specified cryptographic key sizes RSA 1024-1536-2048-3072 bits that meet the following: IEEE 1363 [20]. Application note: The component FMT_MTD.1/AAPK defines an operation “create” that means that the Active Authentication Private Key is generated by the TOE itself. This resulted in this instantiation of the component FCS_CKM.1 as SFR for this key generation. 6.1.2.2. Cryptographic key destruction (FCS_CKM.4) FCS_CKM.4.1 The TSF shall destroy cryptographic keys in accordance with a specified cryptographic key destruction method zeroization that meets the following: none. Application note: The TOE shall destroy the TDES encryption key and the Retail-MAC message authentication keys for secure messaging. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 41 of 68 6.1.2.3. Cryptographic operation (FCS_COP.1)  Hashing for Key Derivation FCS_COP.1.1/ SHA The TSF shall perform hashing in accordance with a specified cryptographic algorithm SHA-1 or SHA-256 and cryptographic key sizes none that meet the following: FIPS 180-2 [18]. Application note: This SFR requires the TOE to implement the hash function SHA-1 for the cryptographic primitive of the Basic Access Control Authentication Mechanism (see also FIA_UAU.4) according to [16].  SM Encrypt/Decrypt FCS_COP.1.1/ ENC The TSF shall perform secure messaging (BAC) – encryption and decryption in accordance with a specified cryptographic algorithm TDES in CBC mode and cryptographic key sizes 112 bit that meet the following: FIPS 46-3 [19] and [16]; normative appendix 5, A5.3. Application note: The TOE implements the cryptographic primitives (e.g. TDES) for secure messaging with encryption of the transmitted data. The keys are agreed between the TOE and the terminal as part of the Chip Authentication Protocol according to the FCS_CKM.1. Furthermore the SFR is used for authentication attempts of a terminal as Personalization Agent by means of the symmetric authentication mechanism.  Authentication FCS_COP.1.1/ AUTH The TSF shall perform symmetric authentication – encryption and decryption in accordance with a specified cryptographic algorithm TDES and cryptographic key sizes 112 bits that meet the following: FIPS 46-3 [19]. Application note: This SFR requires the TOE to implement the cryptographic primitive for authentication attempt of a terminal as Personalization Agent by means of the symmetric authentication mechanism (cf. FIA_UAU.4).  SM - MAC FCS_COP.1.1/ MAC The TSF shall perform secure messaging – message authentication code in accordance with a specified cryptographic algorithm Retail MAC and cryptographic key sizes 112 bits that meet the following: ‗ISO 9797 (MAC algorithm 3, block cipher DES, Sequence Message Counter, padding mode 2). Application note: This SFR requires the TOE to implement the cryptographic primitive for secure messaging with encryption and message authentication code over the transmitted data. The key is agreed between the TSF by the Basic Access Control Authentication Mechanism according to the FCS_CKM.1 and FIA_UAU.4.  Signature generation FCS_COP.1.1/ SIG_GEN The TSF shall perform digital signature generation in accordance with a specified cryptographic algorithm RSA and cryptographic key sizes RSA 1024- 1280-1536-2048-3072 bits that meet the following: ISO/IEC 9796-2 [17]. Application note: For signature generation in the Active Authentication mechanism, the TOE uses ISO/IEC 9796-2 compliant cryptography (scheme 1). 6.1.2.4. Random Number Generation (FCS_RND.1) FCS_RND.1.1 The TSF shall provide a mechanism to generate random numbers that meet AIS31 class “P2 – SOF-High”. Application note: This SFR requires the TOE to generate random numbers used for the authentication protocols as required by FIA_UAU.4. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 42 of 68 6.1.3. User data protection (FDP) 6.1.3.1. Subset access control (FDP_ACC.1) FDP_ACC.1.1 The TSF shall enforce the Basic Access Control SFP on terminals gaining write, read and modification access to data in the EF.COM, EF.SOD, EF.DG1 to EF.DG16 of the logical MRTD. 6.1.3.2. Security attribute based access control (FDP_ACF.1) FDP_ACF.1.1 The TSF shall enforce the Basic Access Control SFP to objects based on the following: 1. Subjects: a. Personalization Agent, b. Basic Inspection System c. Terminal, 2. Objects: a. data EF.DG1 to EF.DG16 of the logical MRTD, b. data in EF.COM, c. data in EF.SOD, 3. Security attributes: a. authentication status of terminals. FDP_ACF.1.2 The TSF shall enforce the following rules to determine if an operation among controlled subjects and controlled objects is allowed: 1. the successfully authenticated Personalization Agent is allowed to write and to read the data of the EF.COM, EF.SOD, EF.DG1 to EF.DG16 of the logical MRTD, 2. the successfully authenticated Basic Inspection System is allowed to read the data in EF.COM, EF.SOD, EF.DG1, EF.DG2 and EF.DG5 to EF.DG16 of the logical MRTD. FDP_ACF.1.3 The TSF shall explicitly authorise access of subjects to objects based on the following additional rules: none. FDP_ACF.1.4 The TSF shall explicitly deny access of subjects to objects based on the rule: 1. Any terminal is not allowed to modify any of the EF.DG1 to EF.DG16 of the logical MRTD. 2. Any terminal is not allowed to read any of the EF.DG1 to EF.DG16 of the logical MRTD. 3. The Basic Inspection System is not allowed to read the data in EF.DG3 and EF.DG4. Application note: The inspection system needs special authentication and authorization for read access to DG3 and DG4 not defined in this TOE (cf. [17] for details). 6.1.3.3. Basic data exchange confidentiality (FDP_UCT.1) Application note: FDP_UCT.1 and FDP_UIT.1 require the protection of the User Data transmitted from the TOE to the terminal by secure messaging with encryption and message authentication codes after successful authentication of the terminal. The authentication mechanisms as part of Basic Access Control Mechanism include the key agreement for the encryption and the message authentication key to be used for secure messaging. FDP_UCT.1.1 The TSF shall enforce the Basic Access Control SFP to be able to transmit and receive user data in a manner protected from unauthorised disclosure. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 43 of 68 6.1.3.4. Data exchange integrity (FDP_UIT.1) Application note: See application in FDP_UCT.1. FDP_UIT.1.1 The TSF shall enforce the Basic Access Control SFP to be able to transmit and receive user data in a manner protected from modification, deletion, insertion and replay errors. FDP_UIT.1.2 The TSF shall be able to determine on receipt of user data, whether modification, deletion, insertion and replay has occurred. 6.1.4. Identification and authentication (FIA) The following table provides an overview on the authentication mechanisms used: Name SFR for the TOE Cryptography Basic Access Control Authentication Mechanism FIA_UAU.4, FIA_UAU.6 TDES, 112 bit keys (cf. FCS_COP.1/ENC) and Retail-MAC, 112 bit keys (cf. FCS_COP.1/MAC) Symmetric Authentication Mechanism for Personalization Agent FIA_UAU.4 TDES with 112 bit keys (cf. FCS_COP.1/AUTH) Active Authentication FIA_API.1, FIA_UAU.4 RSA signature based on ISO9796-2 scheme 1, with Keys 1024, 1536, 2048, 3072 bits (cf. FCS_COP.1.1/ SIG_GEN) 6.1.4.1. Authentication Failure handling (FIA_AFL.1) FIA_AFL.1.1 The TSF shall detect when an administrator configurable positive integer within [0..255] of unsuccessful authentication attempts occur related to failure of a BAC Authentication. FIA_AFL.1.2 When the defined number of unsuccessful authentication attempts has been met, the TSF shall block the BAC cryptographic key. Application note: The terminal challenge eIFD and the TSF response eICC are described in [16], Appendix C. The refinement by inclusion of the word “consecutive” allows the TSF to return to normal operation of the BAC authentication protocol (without time out) after successful run of the BAC authentication protocol. The unsuccessful authentication attempt shall be stored non-volatile in the TOE thus the “consecutive unsuccessful authentication attempts” are count independent on power-on sessions but reset to zero after successful authentication only. 6.1.4.2. Authentication Proof of Identity (FIA_API.1) FIA_API.1.1 The TSF shall provide an Active Authentication Protocol according to [15] to prove the identity of the TOE. Application note: The TOE may implement the Active Authentication Mechanism specified in [15] Part 1 Appendix 4 to section IV. This mechanism is a challenge response protocol where TOE challenge response is calculated being digital signature over the terminal‟s 8 bytes nonce. 6.1.4.3. Timing of authentication (FIA_UAU.1) FIA_UAU.1.1 The TSF shall allow 1. to read the Initialization Data in Phase 2 ―Manufacturing‖, 2. to read the random identifier in Phase 3 ―Personalization of the MRTD‖, 3. to read the random identifier in Phase 4 ―Operational Use‖ on behalf of the user to be performed before the user is authenticated. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 44 of 68 FIA_UAU.1.2 The TSF shall require each user to be successfully authenticated before allowing any other TSF-mediated actions on behalf of that user. Application note: The Basic Inspection System and the Personalization Agent authenticate themselves. 6.1.4.4. Single-use authentication mechanisms (FIA_UAU.4) FIA_UAU.4.1 The TSF shall prevent reuse of authentication data related to 1. Basic Access Control Authentication Mechanism, 2. Authentication Mechanism based on TDES, 3. Active Authentication Protocol. Application note: The authentication mechanisms may use either a challenge freshly and randomly generated by the TOE to prevent reuse of a response generated by a terminal in a successful authentication attempt. However, the authentication of Personalisation Agent may rely on other mechanisms ensuring protection against replay attacks, such as the use of an internal counter as a diversifier. Application note: The Basic Access Control Mechanism is a mutual device authentication mechanism defined in [16]. In the first step the terminal authenticates itself to the MRTD‟s chip and the MRTD‟s chip authenticates to the terminal in the second step. In this second step the MRTD‟s chip provides the terminal with a challenge-response-pair which allows a unique identification of the MRTD‟s chip with some probability depending on the entropy of the Document Basic Access Keys. Therefore the TOE shall stop further communications if the terminal is not successfully authenticated in the first step of the protocol to fulfil the security objective OT.Identification and to prevent T.Chip_ID. 6.1.4.5. Multiple authentication mechanisms (FIA_UAU.5) FIA_UAU.5.1 The TSF shall provide 1. Basic Access Control Authentication Mechanism, 2. Symmetric Authentication Mechanism based on TDES to support user authentication. FIA_UAU.5.2 The TSF shall authenticate any user‘s claimed identity according to the following rules: 1. The TOE accepts the authentication attempt as Personalization Agent by the Symmetric Authentication Mechanism with Personalization Agent Key. 2. the TOE accepts the authentication attempt as Basic Inspection System only by means of the Basic Access Control Authentication Mechanism with the Document Basic Access Keys Application note: The Basic Access Control Mechanism includes the secure messaging for all commands exchanged after successful authentication of the inspection system. The Personalization Agent may use Symmetric Authentication Mechanism without secure messaging mechanism as well if the personalization environment prevents eavesdropping to the communication between TOE and personalization terminal. The Basic Inspection System may use the Basic Access Control Authentication Mechanism with the Document Basic Access Keys 6.1.4.6. Re-authenticating (FIA_UAU.6) FIA_UAU.6.1 The TSF shall re-authenticate the user under the conditions each command sent to the TOE during a BAC mechanism based communication after successful authentication of the terminal with Basic Access Control Authentication Mechanism. Application note: The Basic Access Control Mechanism specified in [15] includes the secure messaging for all commands exchanged after successful authentication of the Inspection System. The TOE checks by secure messaging in MAC_ENC mode each command based on Retail-MAC whether it was sent by the successfully authenticated terminal (see FCS_COP.1/MAC for further Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 45 of 68 details). The TOE does not execute any command with incorrect message authentication code. Therefore the TOE re-authenticates the user for each received command and accepts only those commands received from the previously authenticated BAC user. Application note: Note that in case the TOE should also fulfil [5] the BAC communication might be followed by a Chip Authentication mechanism establishing a new secure messaging that is distinct from the BAC based communication. In this case the condition in FIA_UAU.6 above should not contradict to the option that commands are sent to the TOE that are no longer meeting the BAC communication but are protected by a more secure communication channel established after a more advanced authentication process. 6.1.4.7. Timing of identification (FIA_UID.1) FIA_UID.1.1 The TSF shall allow 1. to read the Initialization Data in Phase 2 ―Manufacturing‖, 2. to read the random identifier in Phase 3 ―Personalization of the MRTD‖, 3. to read the random identifier in Phase 4 ―Operational Use‖ on behalf of the user to be performed before the user is identified. FIA_UID.1.2 The TSF shall require each user to be successfully identified before allowing any other TSF-mediated actions on behalf of that user. Application note: The IC manufacturer and the MRTD manufacturer write the Initialization Data and/or Pre-personalization Data in the audit records of the IC during the Phase 2 “Manufacturing”. The audit records can be written only in the Phase 2 Manufacturing of the TOE. At this time the Manufacturer is the only user role available for the TOE. The MRTD manufacturer may create the user role Personalization Agent for transition from Phase 2 to Phase 3 “Personalization of the MRTD”. The users in role Personalization Agent identify themselves by means of selecting the authentication key. After personalization in the Phase 3 (i.e. writing the digital MRZ and the Document Basic Access Keys) the user role Basic Inspection System is created by writing the Document Basic Access Keys. The Basic Inspection System is identified as default user after power up or reset of the TOE i.e. the TOE will use the Document Basic Access Key to authenticate the user as Basic Inspection System.. Application note: In the “Operational Use” phase the MRTD must not allow anybody to read the ICCSN, the MRTD identifier or any other unique identification before the user is authenticated as Basic Inspection System (cf. T.Chip_ID). Note that the terminal and the MRTD‟s chip use a (randomly chosen) identifier for the communication channel to allow the terminal to communicate with more than one RFID. If this identifier is randomly selected it will not violate the OT.Identification. If this identifier is fixed the ST writer should consider the possibility to misuse this identifier to perform attacks addressed by T.Chip_ID. 6.1.5. Security management (FMT) 6.1.5.1. Limited capabilities (FMT_LIM.1) FMT_LIM.1.1 The TSF shall be designed in a manner that limits their capabilities so that in conjunction with ―Limited availability (FMT_LIM.2)‖ the following policy is enforced: Deploying Test Features after TOE Delivery does not allow, 1. User Data to be disclosed or manipulated 2. TSF data to be disclosed or manipulated 3. software to be reconstructed and 4. substantial information about construction of TSF to be gathered which may enable other attacks. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 46 of 68 6.1.5.2. Limited availability (FMT_LIM.2) FMT_LIM.2.1 The TSF shall be designed in a manner that limits their availability so that in conjunction with ―Limited capabilities (FMT_LIM.1)‖ the following policy is enforced: Deploying Test Features after TOE Delivery does not allow, 1. User Data to be disclosed or manipulated, 2. TSF data to be disclosed or manipulated 3. software to be reconstructed and 4. substantial information about construction of TSF to be gathered 5. which may enable other attacks. Application note: The formulation of “Deploying Test Features …” in FMT_LIM.2.1 might be a little bit misleading since the addressed features are no longer available (e.g. by disabling or removing the respective functionality). Nevertheless the combination of FMT_LIM.1 and FMT_LIM.2 is introduced to provide an optional approach to enforce the same policy. Note that the term “software” in item 3 of FMT_LIM.1.1 and FMT_LIM.2.1 refers to both IC Dedicated and IC Embedded Software. 6.1.5.3. Management of security functions behavior (FMT_MOF.1) FMT_MOF.1.1 The TSF shall restrict the ability to disable the functions Card Content Loading and Installation, and Patching to the Manufacturer. Application note: The Card Content Loading and Installation particularly refers to the loading and installation of Java Card applets into the TOE. Disabling these functions is permanent: the functions are terminated. 6.1.5.4. Management of TSF data (FMT_MTD.1)  Writing of Initialization Data and Pre-personalization Data FMT_MTD.1.1/ INI_ENA The TSF shall restrict the ability to write the Initialization Data and Pre- personalization Data to the Manufacturer. Application note: The pre-personalization Data includes but is not limited to the authentication reference data for the Personalization Agent which is the symmetric cryptographic Personalization Agent Key.  Disabling of Read Access to Initialization Data and Pre-personalization Data FMT_MTD.1.1/ INI_DIS The TSF shall restrict the ability to disable read access for users to the Initialization Data to the Personalization Agent. Application note: According to P.Manufact the IC Manufacturer and the MRTD Manufacturer are the default users assumed by the TOE in the role Manufacturer during the Phase 2 “Manufacturing” but the TOE is not requested to distinguish between these users within the role Manufacturer. The TOE may restrict the ability to write the Initialization Data and the Pre- personalization Data by (i) allowing to write these data only once and (ii) blocking the role Manufacturer at the end of the Phase 2. The IC Manufacturer may write the Initialization Data which includes but are not limited to the IC Identifier as required by FAU_SAS.1. The Initialization Data provides a unique identification of the IC which is used to trace the IC in the Phase 2 and 3 “personalization” but is not needed and may be misused in the Phase 4 “Operational Use”. Therefore the external read access shall be blocked. The MRTD Manufacturer will write the Pre- personalization Data.  Key Write FMT_MTD.1.1/ KEY_WRITE The TSF shall restrict the ability to write the Document Basic Access Keys to the Personalization Agent. Application note: The Country Verifying Certification Authority Public Key is the TSF data for verification of the certificates of the Document Verifier and the Extended Inspection Systems including the access rights for the Extended Access Control. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 47 of 68  Key Read FMT_MTD.1.1/ KEY_READ The TSF shall restrict the ability to read the Document Basic Access Keys, Active Authentication Private Key and Personalization Agent Keys to none. Application note: The Personalization Agent generates, stores and ensures the correctness of the Document Basic Access Keys.  Active Authentication Private Key FMT_MTD.1.1/ AAPK The TSF shall restrict the ability to create the Active Authentication Private Key to the Terminal. Application note: The verb “create” means here that the Terminal (after successful authentication of the Personalization Agent) is requesting the creation of the Active Authentication Key on the TOE and is requesting the secure generation of the Active Authentication Private Key by the TOE itself. See the instantiation of the component FCS_CKM.1 as SFR for this key generation. 6.1.5.5. Specifications of Management Functions (FMT_SMF.1) FMT_SMF.1.1 The TSF shall be capable of performing the following security management functions: 1. Initialization, 2. Pre-personalization, 3. Personalization, 4. Card Content Loading and Installation termination, 5. Patching termination. 6.1.5.6. Security roles (FMT_SMR.1) FMT_SMR.1.1 The TSF shall maintain the roles 1. Manufacturer, 2. Personalization Agent, 3. Basic Inspection System. FMT_SMR.1.2 The TSF shall be able to associate users with roles. 6.1.6. Protection of the TSF (FPT) 6.1.6.1. TOE Emanation (FPT_EMSEC.1) FPT_EMSEC.1.1 The TOE shall not emit information of IC Power consumption in excess of State of the Art values enabling access to Personalization Agent Key(s) and Active Authentication Private Key. FPT_EMSEC.1.2 The TSF shall ensure any users are unable to use the following interface smart card circuit contacts to gain access to Personalization Agent Key(s) and Active Authentication Private Key. Application note: The TOE prevents attacks against the listed secret data where the attack is based on external observable physical phenomena of the TOE. Such attacks may be observable at the interfaces of the TOE or may be originated from internal operation of the TOE or may be caused by an attacker that varies the physical environment under which the TOE operates. The set of measurable physical phenomena is influenced by the technology employed to implement the smart card. The MRTD‟s chip provides a smart card contactless interface but may have also (not used by the terminal but maybe by an attacker) sensitive contacts according to ISO/IEC 7816- 2 as well. Examples of measurable phenomena include, but are not limited to variations in the power consumption, the timing of signals and the electromagnetic radiation due to internal operations or data transmissions. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 48 of 68 6.1.6.2. Failure with preservation of secure state (FPT_FLS.1) FPT_FLS.1.1 The TSF shall preserve a secure state when the following types of failures occur: 1. Exposure to out-of-range operating conditions where therefore a malfunction could occur, 2. failure detected by TSF according to FPT_TST.1. 6.1.6.3. Resistance to physical attack (FPT_PHP.3) FPT_PHP.3.1 The TSF shall resist Physical manipulation and physical probing to the TSF by responding automatically such that the SFRs are always enforced. Application note: The TOE implements appropriate measures to continuously counter physical manipulation and physical probing. Due to the nature of these attacks (especially manipulation) the TOE can by no means detect attacks on all of its elements. Therefore, permanent protection against these attacks is required ensuring that the TSP could not be violated at any time. Hence, “automatic response” means here (i) assuming that there might be an attack at any time and (ii) countermeasures are provided at any time. Application note: The SFRs “Non-bypassability of the TSF FPT_RVM.1” and “TSF domain separation FPT_SEP.1” are no longer part of [2]. These requirements are now an implicit part of the assurance requirement ADV_ARC.1. 6.1.6.4. Testing of external entities (FPT_TEE.1) FPT_TEE.1.1 The TSF shall run a suite of tests during initial start-up to check the fulfillment of the integrity of TOE sensitive data. FPT_TEE.1.2 If the test fails, the TSF shall enter a mute state and possibly get TERMINATED. Application note: self test for the verification of the integrity of TOE sensitive data are executed during initial start-up in the Phase 3 “Personalization” and Phase 4 “Operational Use”. It covers the integrity of data such as TOE lifecycle state and TOE code, including patching data. 6.1.6.5. TSF testing (FPT_TST.1) FPT_TST.1.1 The TSF shall run a suite of self tests during initial start-up to demonstrate the correct operation of the TSF. FPT_TST.1.2 The TSF shall provide authorised users with the capability to verify the integrity of TSF data. FPT_TST.1.3 The TSF shall provide authorised users with the capability to verify the integrity of stored TSF executable code. Application note: self test for the verification of the integrity of stored TSF executable code are executed during initial start-up in the Phase 3 “Personalization” and Phase 4 “Operational Use”. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 49 of 68 6.2. TOE Security Assurance Requirements TOE Security Assurance Requirements as stated in section 6.2 of the claimed PP [5]. ALC_DVS is augmented from 1 to 2 compared to the CC V3.1 package for EAL4. 6.2.1. SARs Measures The assurance measures that satisfy the TOE security assurance requirements are the following: Assurance Class Component Description ADV: Development ADV_ARC.1 Security architecture description ADV_FSP.4 Complete functional specification ADV_IMP.1 Implementation representation of the TSF ADV_TDS.3 Basic modular design AGD: Guidance documents AGD_OPE.1 Operational user guidance AGD_PRE.1 Preparative procedures ALC: Lifecycle support ALC_CMC.4 Production support, acceptance procedures and automation ALC_CMS.4 Problem of Tracking CM coverage ALC_DEL.1 Delivery procedures ALC_DVS.2 Sufficiency of security measures ALC_LCD.1 Developer defined lifecycle model ALC_TAT.1 Well defined development tools ASE: Security Target evaluation ASE_CCL.1 Conformance claims ASE_ECD.1 Extended components definition ASE_INT.1 ST introduction ASE_OBJ.2 Security objectives ASE_REQ.2 Derived security requirements ASE_SPD.1 Security problem definition ASE_TSS.1 TOE summary specification ATE: Test ATE_COV.2 Analysis of coverage ATE_DPT.2 Testing: security enforcing modules ATE_FUN.1 Functional testing ATE_IND.2 Independent testing - sample AVA: Vulnerability assessment AVA_VAN.3 Focused vulnerability analysis Table 2 – Assurance Requirements: EAL4 augmented Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 50 of 68 6.2.2. SARs Rationale The EAL4 was chosen to permit a developer to gain maximum assurance from positive security engineering based on good commercial development practices which, though rigorous, do not require substantial specialist knowledge, skills, and other resources. EAL4 is the highest level at which it is likely to be economically feasible to retrofit to an existing product line. EAL4 is applicable in those circumstances where developers or users require a moderate to high level of independently assured security in conventional commodity TOEs and are prepared to incur sensitive security specific engineering costs. Augmentation results from the selection of: ALC_DVS.2 Life-cycle support- Sufficiency of security measures The selection of the component ALC_DVS.2 provides a higher assurance of the security of the MRTD‘s development and manufacturing especially for the secure handling of the MRTD‘s material. The component ALC_DVS.2 has no dependencies. All of these are met or exceeded in the EAL4 assurance package. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 51 of 68 6.3. Security Requirements Rationale 6.3.1. Security Requirement Coverage The following able indicates the association of the SFRs and the SOs of the TOE. The Security Requirements of the TOE correspond to at least one security objective of the TOE. Moreover, some requirements correspond to the security objectives of the TOE in combination with other objectives. TOE Security Functional Requirement / TOE Security objectives OT.AC_Pers OT.Data_Int OT.Data_Conf OT.Identification OT.Prot_Abuse-Func OT.Prot_Inf_Leak OT.Prot_Phys-Tamper OT.Prot_Malfunction OT.AA_Proof OT.CCLI_END OT.PATCH_SEC OT.PATCH_END FAU_SAS.1 X FCS_CKM.1/ BAC X X X FCS_CKM.1/ KP X FCS_CKM.4 X X FCS_COP.1/ SHA X X X X FCS_COP.1/ ENC X X X FCS_COP.1/ AUTH X X FCS_COP.1/ MAC X X X FCS_COP.1/ SIG_GEN X FCS_RND.1 X X X FDP_ACC.1 X X X FDP_ACF.1 X X X FDP_UCT.1 X X X FDP_UIT.1 X X X FIA_API.1 X FIA_UID.1 X X FIA_UAU.1 X X FIA_UAU.4 X X X FIA_UAU.5 X X X FIA_UAU.6 X X X FIA_AFL.1 X X FMT_LIM.1 X FMT_LIM.2 X FMT_MOF.1 X X FMT_MTD.1/ INI_ENA X FMT_MTD.1/ INI_DIS X FMT_MTD.1/ KEY_WRITE X X X FMT_MTD.1/ KEY_READ X X X FMT_MTD.1/ AAPK X FMT_SMF.1 X X FMT_SMR.1 FPT_EMSEC.1 X FPT_FLS.1 X X X FPT_PHP.3 X X X X FPT_TEE.1 X FPT_TST.1 X X X Table 3 – Functional Requirement to TOE Security Objective Mapping Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 52 of 68 6.3.2. Security Requirements Sufficiency 6.3.2.1. TOE Security Requirements Sufficiency OT.AC_Pers (Access Control for Personalization of logical MRTD) addresses the access control of the writing the logical MRTD. The write access to the logical MRTD data are defined by the SFR FDP_ACC.1 and FDP_ACF.1 as follows: only the successfully authenticated Personalization Agent is allowed to write the data of the groups EF.DG1 to EF.DG16 of the logical MRTD only once. The authentication of the terminal as Personalization Agent shall be performed by TSF according to SRF FIA_UAU.4 and FIA_UAU.5. The Personalization Agent can be authenticated either by using the BAC mechanism (FCS_CKM.1, FCS_COP.1/SHA, FCS_RND.1 (for key generation), and FCS_COP.1/ENC as well as FCS_COP.1/MAC) with the personalization key or for reasons of interoperability with the [5] by using the symmetric authentication mechanism (FCS_COP.1/ AUTH). In case of using the BAC mechanism the SFR FIA_UAU.6 describes the re-authentication and FDP_UCT.1 and FDP_UIT.1 the protection of the transmitted data by means of secure messaging implemented by the cryptographic functions according to FCS_CKM.1, FCS_COP.1/SHA, FCS_RND.1 (for key generation), and FCS_COP.1/ENC as well as FCS_COP.1/MAC for the ENC_MAC_Mode. The SFR FMT_SMR.1 lists the roles (including Personalization Agent) and the SFR FMT_SMF.1 lists the TSF management functions (including Personalization) setting the Document Basic Access Keys according to the SFR FMT_MTD.1/KEY_WRITE as authentication reference data. The SFR FMT_MTD.1/KEY_READ prevents read access to the secret key of the Personalization Agent Keys and ensure together with the SFR FCS_CKM.4, FPT_EMSEC.1, FPT_FLS.1 and FPT_PHP.3 the confidentially of these keys. OT.Data_Int (Integrity of personal data) requires the TOE to protect the integrity of the logical MRTD stored on the MRTD‘s chip against physical manipulation and unauthorized writing. The write access to the logical MRTD data is defined by the SFR FDP_ACC.1 and FDP_ACF.1 in the same way: only the Personalization Agent is allowed to write the data of the groups EF.DG1 to EF.DG16 of the logical MRTD (FDP_ACF.1.2, rule 1) and terminals are not allowed to modify any of the data groups EF.DG1 to EF.DG16 of the logical MRTD (cf. FDP_ACF.1.4). The SFR FMT_SMR.1 lists the roles (including Personalization Agent) and the SFR FMT_SMF.1 lists the TSF management functions (including Personalization). The authentication of the terminal as Personalization Agent shall be performed by TSF according to SRF FIA_UAU.4, FIA_UAU.5 and FIA_UAU.6 using either FCS_COP.1/ENC and FCS_COP.1/MAC or FCS_COP.1/AUTH. OT.Data_Int (Integrity of personal data) requires the TOE to ensure that the inspection system is able to detect any modification of the transmitted logical MRTD data by means of the BAC mechanism. The SFR FIA_UAU.6, FDP_UCT.1 and FDP_UIT.1 requires the protection of the transmitted data by means of secure messaging implemented by the cryptographic functions according to FCS_CKM.1, FCS_COP.1/SHA, FCS_RND.1 (for key generation), and FCS_COP.1/ENC and FCS_COP.1/MAC for the ENC_MAC_Mode. The SFR FMT_MTD.1/KEY_WRITE requires the Personalization Agent to establish the Document Basic Access Keys in a way that they cannot be read by anyone in accordance to FMT_MTD.1/KEY_READ. OT.Data_Conf (Confidentiality of personal data) requires the TOE to ensure the confidentiality of the logical MRTD data groups EF.DG1 to EF.DG16. The SFR FIA_UID.1 and FIA_UAU.1 allow only those actions before identification respective authentication which do not violate OT.Data_Conf. In case of failed authentication attempts FIA_AFL.1 enforces additional waiting time prolonging the necessary amount of time for facilitating a brute force attack. The read access to the logical MRTD data is defined by the FDP_ACC.1 and FDP_ACF.1.2: the successful authenticated Personalization Agent is allowed to read the data of the logical MRTD (EF.DG1 to EF.DG16). The successful authenticated Basic Inspection System is allowed to read the data of the logical MRTD (EF.DG1, EF.DG2 and EF.DG5 to EF.DG16). The SFR FMT_SMR.1 lists the roles (including Personalization Agent and Basic Inspection System) and the SFR FMT_SMF.1 lists the TSF management functions (including Personalization for the key management for the Document Basic Access Keys). The SFR FIA_UAU.4 prevents reuse of authentication data to strengthen the authentication of the user. The SFR FIA_UAU.5 enforces the TOE to accept the authentication attempt as Basic Inspection System Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 53 of 68 only by means of the Basic Access Control Authentication Mechanism with the Document Basic Access Keys. Moreover, the SFR FIA_UAU.6 requests secure messaging after successful authentication of the terminal with Basic Access Control Authentication Mechanism which includes the protection of the transmitted data in ENC_MAC_Mode by means of the cryptographic functions according to FCS_COP.1/ENC and FCS_COP.1/MAC (cf. the SFR FDP_UCT.1 and FDP_UIT.1). (for key generation), and FCS_COP.1/ENC and FCS_COP.1/MAC for the ENC_MAC_Mode. The SFR FCS_CKM.1, FCS_CKM.4, FCS_COP.1/SHA and FCS_RND.1 establish the key management for the secure messaging keys. The SFR FMT_MTD.1/KEY_WRITE addresses the key management and FMT_MTD.1/KEY_READ prevents reading of the Document Basic Access Keys. Note, neither the security objective OT.Data_Conf nor the SFR FIA_UAU.5 requires the Personalization Agent to use the Basic Access Control Authentication Mechanism or secure messaging. OT.Identification (Identification and Authentication of the TOE) address the storage of the IC Identification Data uniquely identifying the MRTD‘s chip in its non-volatile memory. This will be ensured by TSF according to SFR FAU_SAS.1. Furthermore, the TOE shall identify itself only to a successful authenticated Basic Inspection System in Phase 4 ―Operational Use‖. The SFR FMT_MTD.1/INI_ENA allows only the Manufacturer to write Initialization Data and Pre-personalization Data (including the Personalization Agent key). The SFR FMT_MTD.1/INI_DIS allows the Personalization Agent to disable Initialization Data if their usage in the phase 4 ―Operational Use‖ violates the security objective OT.Identification. The SFR FIA_UID.1 and FIA_UAU.1 do not allow reading of any data uniquely identifying the MRTD‘s chip before successful authentication of the Basic Inspection Terminal and will stop communication after unsuccessful authentication attempt (cf. Application note 30). In case of failed authentication attempts FIA_AFL.1 enforces additional waiting time prolonging the necessary amount of time for facilitating a brute force attack. OT.Prot_Abuse-Func (Protection against Abuse of Functionality) is ensured by the SFR FMT_LIM.1 and FMT_LIM.2 which prevent misuse of test functionality of the TOE or other features which may not be used after TOE Delivery. OT.Prot_Inf_Leak (Protection against Information Leakage) requires the TOE to protect confidential TSF data stored and/or processed in the MRTD‘s chip against disclosure - by measurement and analysis of the shape and amplitude of signals or the time between events found by measuring signals on the electromagnetic field, power consumption, clock, or I/O lines, which is addressed by the SFR FPT_EMSEC.1, - by forcing a malfunction of the TOE, which is addressed by the SFR FPT_FLS.1 and FPT_TST.1, and/or - by a physical manipulation of the TOE, which is addressed by the SFR FPT_PHP.3. OT.Prot_Phys-Tamper (Protection against Physical Tampering) is covered by the SFR FPT_PHP.3. OT.Prot_Malfunction (Protection against Malfunctions) is covered by (i) the SFR FPT_TST.1 which requires self tests to demonstrate the correct operation and tests of authorized users to verify the integrity of TSF data and TSF code, and (ii) the SFR FPT_FLS.1 which requires a secure state in case of detected failure or operating conditions possibly causing a malfunction. OT.AA_Proof (Proof of MRTD’s chip authenticity by Active Authentication) is ensured by the Active Authentication Protocol provided by FIA_API.1/AAP enforcing the identification and authentication of the MRTD‘s chip. The Active Authentication protocol requires FCS_RND.1 (for the generation of the challenge), and FCS_COP.1/SHA (for the host challenge hashing) and FCS_COP.1/SIG_GEN (for the signature generation). The Active Authentication private Key is used. This TOE secret data is created during Personalization (Phase 3) according to FCS_CKM.1/KP (for Key generation mechanism), and by authorized agent as required by FMT_MTD.1/ AAPK. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 54 of 68 OT.CCLI_END (Secure termination of Card Content Loading and Installation) is provided by FMT_MOF.1/Close and FMT_SMF.1 which ensure that the access to the Card Content Loading and Installation is provided to the Manufacturer. OT.PATCH_SEC (Secure Patch Mechanism) is provided by FPT_PHP.1, FPT_PHP.3, FPT_TEE.1 and FPT_TST.1. These requirements ensure that the Patch Mechanism is preserved from tampering, preventing and detecting physical intrusions that would alter the mechanism itself or the routing from the original software to the loaded patches. These requirements also enforce testing of the critical patch mechanism data during power-up procedure, in order to detect a corruption in the TOE sensitive properties linked to the patch mechanism. OT.PATCH_END (Secure termination of Patching) is provided by FMT_MOF.1/Close and FMT_SMF.1 which ensure that the access to the Patching mechanism termination is provided to the Manufacturer. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 55 of 68 7. TOE summary specification This set of TSFs manages the identification and/or authentication of the external user and enforces role separation (FMT_SMR.1). All details of the Security Functions of this TOE can be obtained by contacting an Athena Sales and Support representative. This Security Target Lite contains the main highlights for each Security Function. 7.1. SF.Access Control This function checks that for each operation initiated by a user, the security attributes for user authorization (FMT_SMR.1) and data communication required are satisfied. The function includes control over the Terminal gaining access to MRTD‘s chip data (FDP_ACC.1, FDP_ACF.1) based on authentication status of the Terminal and Terminal authorizations: Control over the authorization of Manufacturer during Pre-personalization Phase 2 to: - Write the initialization data and pre-personalization data (FMT_MTD.1/INI_ENA) Control over the authorization of Personalization Agent during Personalization Phase 3 to: - Write and Read EF.COM, EF.SOD, EF.DG1 to EF.DG16 (FDP_ACF.1.2 (1)) - Create initial Active Authentication Private Key (FMT_MTD.1/AAPK) - Write Document Basic Access Keys (FMT_MTD.1/KEY_WRITE) - Disable read access to initialization data for users (FMT_MTD.1/INI_DIS) Control over the Basic Inspection System during Usage Phase 4 to: - Read EF.COM, EF.SOD, EF.DG1, EF.DG2, EF.DG5 to EF.DG16 (FDP_ACF.1.2 (2)) - Prevent reading of EF.DG3 (fingerprint) and EF.DG4 (Iris) (FDP_ACF.1.4 (3)) - Create new Active Authentication Keys (FMT_MTD.1/AAPK) Control over any non-authenticated Terminal during Usage Phase 4 to: - Prevent modification of EF.DG1 to EF.DG16 (FDP_ACF.1.4 (1)) - Prevent reading of EF.DG1 to EF.DG16 (FDP_ACF.1.4 (2)) - Prevent reading Document Basic Access Keys, Personalization Agent Keys, Active Authentication Private Key (FMT_MTD.1/KEY_READ) Control over the enforcement of Secure Messaging over: - Importation and exportation of data (including but not restricted to EF.COM, EF.SOD, EF.DG1- EF.DG16) after successful BAC Authentication (FDP_UCT.1, FDP_UIT.1) 7.2. SF.Card Personalization This TSF provides Card initialization and pre-personalization services (FMT_SMF.1) as per GlobalPlatform. This includes but is not restricted to card initialization, patch loading, applet installation and instantiation. This TSF also provides MRTD‘s chip personalization functions to allow the Personalization Agent to create and set the initial MRTD‘s LDS data (FMT_SMF.1). This includes disabling read access to Initialization data at completion of the personalization phase (FIA_UAU.1). Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 56 of 68 7.3. SF.Manufacturer Authentication The Manufacturer is the only user authenticated through the GlobalPlatform Mutual Authentication process. He authenticates during the Manufacturing Phase of the TOE (FAU_SAS.1) using the Secure Channel protocol (SCP01 or SCP02). This user is able to authenticate with the Operating System to launch the installation of the ICAO applet and to perform TOE Operating System (OS) personalization (MRTD IC pre-personalization). He is also able to read the Initialization Data (FIA_UAU.1, FIA_UID.1). When the TOE is ready to be personalized, the Manufacturer will create the authentication data for the Personalization Agent and terminate this manufacturing stage by disabling the card content loading and installation functions. In Usage phase, the Manufacturer could only authenticate to TERMINATE the TOE. 7.4. SF.Personalizer Authentication The Personalization Agent is authenticated by the TOE using its symmetric key (FIA_UAU.5). He is able to read the random identifier in that phase (FIA_UAU.1, FIA_UID.1). The authentication requires a symmetric encryption using TDES in CBC mode with a key length of 112 bits (FCS_COP.1/ENC). IC power variation emanation is below state of the art values, and physical access to the authentication data is protected during this SF activity (FPT_EMSEC.1). 7.5. SF.BAC Authentication This TSF provides the Basic Access Control passive authentication protocol (The Terminal is then allowed to select this authentication key and proceed with BAC Authentication (FIA_UAU.1, FIA_UID.1, and FIA_UAU.5). This is the only authentication mechanism that involves symmetric keys (KBEnc and KBMAC): TDES 112 bits (FCS_COP.1/AUTH). As part of the protocol, the BAC Session Keys are derived from the MRZ of the MRTD‘s chip: this is done using SHA-1 (FCS_COP.1/SHA). The authentication initialization requires that the MRTD‘s chip generates 8 bytes challenge (nonce rPICC) that is read by the Basic Inspection System (FIA_UAU.1), and 16 bytes Key (KPICC) (FCS_RND.1). The MRTD BAC authentication stages also require TDES encryption of 32 bytes of concatenated data and a Retail MAC computation over the 32 bytes of encryption output (FCS_COP.1/MAC). The Basic Inspection System also generated a pair (KPCD, rPCD). The use of challenges enforces a protection against replay (FIA_UAU.4). Completion of the BAC Authentication protocol means that a Secure Messaging session is started with the session keys (KENC and KMAC) derived from the derived according to [15] from the common master secret KMaster = KPICCKPCD and a Send Sequence Counter SSC derived from rPICC and rPCD (FCS_CKM.1/BAC). All further communication with the TOE is handled by SF.Secure Messaging Security Function, enforcing confidentiality and integrity over transferred data (FIA_UAU.5). In case the BAC authentication protocol fails (the TOE being unable to identify the Terminal as being a legitimate Basic Inspection System) the TOE records one authentication failure. If the Terminal reaches a pre-defined amount of successive authentication failures, the BAC Authentication Key is blocked (FIA_AFL.1). Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 57 of 68 7.6. SF.Active Authentication Active Authentication is provided by this TSF based on the availability of DG15 in the MRTD‘s chip information data (FIA_API.1). This is decided by the Personalization Agent during phase 3 when the LDS is personalized. The Terminal is then allowed to select this authentication key and proceed with Active Authentication after successful BAC Authentication (to prevent the privacy threat Challenge Semantics). See the inspection procedures in section 2.1 of [16]. This TSF involves an optional asymmetric Key Pair (KPrAA, KPuAA) which public part is stored in DG15 and private part is stored securely within the chip. This Key Pair is securely generated on the TOE under request of the Personalization Agent (FCS_CKM.1/KP). This TSF ensures that the chip has not been substituted, by means of a challenge-response protocol between the inspection system and the MRTD‘s chip. The TOE‘s challenge is a true random generated by the TOE (FCS_RND.1). And the challenge-response involves an RSA signature generation based on ISO/IEC 9796-2 Digital Signature scheme 1 (FCS_COP.1/SIG_GEN). The use of challenges enforces a protection against replay (FIA_UAU.4). IC power variation emanation is below state of the art values, and physical access to the authentication data is protected during this SF activity (FPT_EMSEC.1). 7.7. SF.Crypto This Security Function is responsible for providing cryptographic support to all the other Security Functions including secure key generation, secure random generator, and data hashing:  Secure generation of asymmetric Key Pair (FCS_CKM.1/KP), key generation is protected against SPA, Timing attacks, and electromagnetic emanation (FPT_EMSEC.1) and includes Key Pair Correspondence verification. o RSA key pair with length from 1024 to 4096 bits o Elliptic Curves ECDSA Keys with length 160, 192, 224, 256, 384, 521 bits  Data hashing using SHA-1, SHA-224, SHA-256, SHA-384, SHA-512 (FCS_COP.1/SHA)  RSA Sign and Verify operations with both CRT and standard Key Pairs of length 1024, 1280, 1536, 2048, 3072 bits (FCS_COP.1/SIG_GEN)  ECDSA Signature Verification with ECC Keys of length 160, 192, 224, 256, 384, 521 bits  TDES 2 Keys and 3 Keys in CBC and ECB modes (FCS_COP.1/ENC, FCS_COP.1/MAC, FCS_COP.1/AUTH)  Secure destruction of cryptographic key secret or private material (FCS_CKM.4).  The random number generator of the underlying IC is used by the TOE whenever the generation of a nonce is required (FCS_RND.1).  Adequate number of Rabin Miller test rounds is performed in addition to GCD test in order to ensure correct generation of primes.  MAC is generated and verified using TDES with 2 or 3 keys. This TSF enforces protection of Key material during cryptographic functions processing and Key Generation, against state-of-the-art attacks, including IC power consumption analysis (FPT_EMSEC.1) Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 58 of 68 7.8. SF.Secure Messaging Commands and responses are exchanged between the TOE and the external device. This TSF provides a secure mean for the terminal and the card to exchange data (FIA_UAU.1, FIA_UAU.5): such as (and not restricted to) EF.COM, EF.SOD, EF.DG1 to EF.DG16. The SF.Secure Messaging function is capable of providing a trusted path between legitimate end points both of the TOE and the external device. The secure communication channels are enforced by cryptographic functions. This function enforces confidentiality (FDP_UCT.1) and integrity (FDP_UIT.1) of the transferred data (transmitted and received):  Confidentiality is ensured by a TDES encryption (FCS_COP.1/ENC)  Integrity is achieved by calculation, embodiment and verification of a Retail MAC (FCS_COP.1/MAC) This function provides means to detect if modification, deletion, insertion or replay is occurring during a Secure Messaging session. In such cases, this TSF will terminate the session and securely destroyed the session keys (FCS_CKM.4). A session is also terminated upon reset of the TOE. A re-authentication using the Chip Authentication protocol is required after termination of a Secure Messaging session (FIA_UAU.6). 7.9. SF.Protection This Security Function is responsible for protection of the TSF data, user data, and TSF functionality. The SF. Protection function is composed of software implementations of test and security functions including:  Performing self tests of the TOE at each power-up (FPT_TEE.1, FPT_TST.1)  Deleting authentication resources (Biometrics, PINs, secret and private keys) when relevant memory is de-allocated (FCS_CKM.4)  Validating the integrity of all stored cryptographic keys and PINs before use and informing the Terminal when such validation fails (FPT_TST.1).  Ensuring that Information is not leaked.  Performing a set of test to verify that the underlying cryptographic algorithms are operating correctly (FPT_TST.1).  Initializing memory after reset  Initializing memory of de-allocated data  Preserving secure state after sensitive processing failure (RNG, EEPROM handling) or potential physical tampering or intrusion detection (FPT_FLS.1, FPT_PHP.3)  Termination of the Card Content Loading and Installation services (FMT_MOF.1, FMT_SMF.1)  Patch loading and termination (FMT_MOF.1, FMT_SMF.1) The TOE provides the ability to patch some identified native functions of the original TOE. This mechanism is available during Initialization phase but in the case of this TOE, no patch is loaded. The patch activities during the initialization phase are reduced to the termination of the patch mechanism. This TSF prevents re-activation of de-activated or disabled or terminated mechanisms: the code area and data area are protected (FMT_LIM.1, FMT_LIM.2) Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 59 of 68 8. Additional Rationale 8.1. Rational for assurance measures Each assurance requirement is covered by an assurance measure. Assurance Requirements / Assurance Measures AM_ADV AM_AGD AM_ALC AM_ATE AM_AVA ADV x AGD x ALC x ATE x AVA x Table 4 – Mapping Assurance Requirements to Assurance Measures 8.2. Rationale for Extensions Extensions are based on the Protection Profile [4] and have all been adopted by the developer of the TOE: - FAU_SAS.1 ‗Audit data storage‘ - FCS_RND.1 ‗Generation of random numbers‘ - FIA_API.1 ‗Authentication Proof of Identity‘ - FPT_EMSEC.1 ‗TOE emanation‘ 8.3. PP Claim Rationale This ST includes all the security objectives and requirements claimed by PP [4], and, all of the operations applied to the SFRs are in accordance with the requirements of this PP. 8.3.1. SPD Rationale All the assets, assumptions, threats and OSPs of each claimed PPs have been strictly applied to this TOE. The following threats have been added: T.MOD_SOFT threat has been added as the TOE provides mechanisms for loading and installing software, and patching original software during the Initialization phase. These features actually introduce threats that some illegal modifications of the TOE might be performed. T.Counterfeit has been added as the TOE may support the Active Authentication Protocol. This mechanism prevents a threat the MRTD‘s chip is counterfeit. The following assumptions have also been added: A.Pers_Agent_AA assumption has been added as the TOE personalization phase may include personalization of the Active Authentication (AA) Keys. A.Insp_Sys_AA assumption has been added as the Inspection system should proceed to Active Authentication if the corresponding Keys are present on the MRTD‘s chip (Public Key present in EF.DG15). Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 60 of 68 8.3.2. Objectives Rationale The following objectives for the TOE have been added to those of the PP [4]: OT.CCLI_END objective has been added to cover the fact that the card is closed before issuance: installation phase includes a step that terminates Card Content Loading and Installing. This procedure is irreversible. OT.PATCH_SEC and OT.PATCH_END objectives have been added to cover the fact that the card provides a patch mechanism that allows patch loading and termination during Initialization phase of the TOE. Terminating the patch mechanism is irreversible: loaded patches are always run instead of the original code and no more patches can be loaded. OT.AA_Proof objective has been added to cover the fact that the card may support Active Authentication (AA) and provide a secure mean to the inspection system to authenticate the TOE as a genuine MRTD‘s chip. The following objectives for the TOE environment have been added to those of the PP [4]: OT.Exam_MRTD_AA objective has been added to cover the fact that the card may support Active Authentication (AA) and the inspection system should always examine the MRTD passport book and perform AA when provided. OT.Active_Auth_Key objective has been added to cover the fact that the card may support Active Authentication (AA) and the inspection system should always handle the AA Key in a secure manner: that key is generated in the TOE and the public part should be written in EF.FG15. 8.3.3. SFR Rationale The selections and assignments performed in the TOE are compliant with PP [5]. Selections and refinements of SFRs allowable by PP [5] were performed and are noted by using underline italic text. The following SFRs from the PPs have been reworked. Assignments: - FCS_CKM.4 - FCS_RND.1 - FIA_AFL.1 - FPT_EMSEC.1 - FPT_TST.1 Selections: - FCS_COP.1/ SHA - FCS_COP.1/ AUTH - FIA_UAU.4 - FIA_UAU.5 - FPT_TST.1 Due to the introduction of Active Authentication (AA), some SFRs have been modified: - FCS_CKM.1 has been renamed FCS_CKM.1/ BAC (for Basic Access Control) - FIA_UAU.4 has been modified to also cover the AA protocol - FMT_MTD.1/ KEY_READ has been modify to also prevent AA Private Key read - FPT_EMSEC.1 has been modified to also protect the AA Private Key Due to the introduction of Card Content Loading and Installation and Patching mechanisms during TOE initialization (both terminated before issuance), some SFRs have been modified: - FMT_SMF.1.1 includes the two additional security management functions:‖Card Content Loading and Installation termination‟ and „Patching termination‖. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 61 of 68 8.3.4. PP Additions Some SFRs have been added to the set of SFRs proposed by PP [5]. The following SFRs have been added in relation to the addition of Active Authentication: - FCS_CKM.1/ KP: AA Key Pair generation - FCS_COP.1/ SIG_GEN: Data Signature Generation using the AA Private Key - FIA_API.1: Active Authentication Protocol - FMT_MTD.1/ AAPK: AA Keys access control The following SFRs have been added in relation to the addition of Card Content Loading and Installation and Patching mechanisms: - FMT_MOF.1: Access Control to termination of these security features - FPT_TEE.1: TOE sensitive data integrity checks 8.3.5. PP compliancy The TOE type is compliant with the claimed PP: the TOE is an ICAO MRTD‘s chip providing all means of identification and authentication of the TOE itself, the MRTD‘s traveler and possibly the Terminal. The TOE is compliant with the representation provided in the ICAO Machine Readable Travel Document Chip with Basic Access Control PP [4]. The compliance is strict: the addition of specific TOE security mechanisms to the security principles of this Security Target required only the addition of one Threat and three TOE Objectives. These additions do not affect the concept defined in the PP [4] and this ST is a suitable solution to the generic security problem described in the PP. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 62 of 68 9. Terminology Term Definition Active Authentication Security mechanism defined in [15] option by which means the MRTD‘s chip proves and the inspection system verifies the identity and authenticity of the MRTD‘s chip as part of a genuine MRTD issued by a known State of Organization. Application note Optional informative part of the PP containing sensitive supporting information that is considered relevant or useful for the construction, evaluation, or use of the TOE. Audit records Write-only-once non-volatile memory area of the MRTDs chip to store the Initialization Data and Pre-personalization Data. Authenticity Ability to confirm the MRTD and its data elements on the MRTD‘s chip were created by the issuing State or Organization. Basic Access Control (BAC) Security mechanism defined in [15] by which means the MRTD‘s chip proves and the inspection system protects their communication by means of secure messaging with Document Basic Access Keys (see there). Basic Inspection System (BIS) An inspection system which implements the terminals part of the Basic Access Control Mechanism and authenticates itself to the MRTD‘s chip using the Document Basic Access Keys derived from the printed MRZ data for reading the logical MRTD. Biographical data (biodata) The personalized details of the MRTD holder of the document appearing as text in the visual and machine readable zones on the biographical data page of a passport book or on a travel card or visa. [15] Biometric reference data Data stored for biometric authentication of the MRTD holder in the MRTD‘s chip as (i) digital portrait and (ii) optional biometric reference data. Certificate chain Hierarchical sequence of Inspection System Certificate (lowest level), Document Verifier Certificate and Country Verifying Certification Authority Certificates (highest level), where the certificate of a lower lever is signed with the private key corresponding to the public key in the certificate of the next higher level. The Country Verifying Certification Authority Certificate is signed with the private key corresponding to the public key it contains (self-signed certificate). Counterfeit An unauthorized copy or reproduction of a genuine security document made by whatever means. [15] Country Signing CA Certificate (CCSCA) Certificate of the Country Signing Certification Authority Public Key (KPuCSCA) issued by Country Signing Certification Authority stored in the inspection system. Country Verifying Certification Authority The country specific root of the PKI of Inspection Systems and creates the Document Verifier Certificates within this PKI. It enforces the Privacy policy of the issuing State or Organization in respect to the protection of sensitive biometric reference data stored in the MRTD. Current date The maximum of the effective dates of valid CVCA, DV and domestic Inspection System certificates known to the TOE. It is used the validate card verifiable certificates. CVCA link Certificate Certificate of the new public key of the Country Verifying Certification Authority signed with the old public key of the Country Verifying Certification Authority where the certificate effective date for the new key is before the certificate expiration date of the certificate for the old key. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 63 of 68 Term Definition Document Basic Access Key Derivation Algorithm The [15], normative appendix 5, A5.1 describes the Document Basic Access Key Derivation Algorithm on how terminals may derive the Document Basic Access Keys from the second line of the printed MRZ data. Document Basic Access Keys Pair of symmetric (two-key) TDES keys used for secure messaging with encryption (key KENC) and message authentication (key KMAC) of data transmitted between the MRTD‘s chip and the inspection system [15]. It is drawn from the printed MRZ of the passport book to authenticate an entity able to read the printed MRZ of the passport book. Document Security Object (SOD) A RFC3369 CMS Signed Data Structure, signed by the Document Signer (DS). Carries the hash values of the LDS Data Groups. It is stored in the MRTD‘s chip. It may carry the Document Signer Certificate (CDS). [15] Document Verifier Certification authority creating the Inspection System Certificates and managing the authorization of the Extended Inspection Systems for the sensitive data of the MRTD in the limits provided by the issuing States or Organizations. Eavesdropper A threat agent with Enhanced-Basic attack potential reading the communication between the MRTD‘s chip and the inspection system to gain the data on the MRTD‘s chip. Enrolment The process of collecting biometric samples from a person and the subsequent preparation and storage of biometric reference templates representing that person's identity. [15] Extended Access Control Security mechanism identified in [15] by which means the MRTD‘s chip (i) verifies the authentication of the inspection systems authorized to read the optional biometric reference data, (ii) controls the access to the optional biometric reference data and (iii) protects the confidentiality and integrity of the optional biometric reference data during their transmission to the inspection system by secure messaging. The Personalization Agent may use the same mechanism to authenticate itself with Personalization Agent Private Key and to get write and read access to the logical MRTD and TSF data. Extended Inspection System A General Inspection System which (i) implements the Chip Authentication Mechanism, (ii) implements the Terminal Authentication Protocol and (iii) is authorized by the issuing State or Organization through the Document Verifier of the receiving State to read the sensitive biometric reference data. Extended Inspection System (EIS) A role of a terminal as part of an inspection system which is in addition to Basic Inspection System authorized by the issuing State or Organization to read the optional biometric reference data and supports the terminals part of the Extended Access Control Authentication Mechanism. Forgery Fraudulent alteration of any part of the genuine document, e.g. changes to the biographical data or the portrait. [15] General Inspection System A Basic Inspection System which implements sensitively the Chip Authentication Mechanism. Global Interoperability The capability of inspection systems (either manual or automated) in different States throughout the world to exchange data, to process data received from systems in other States, and to utilize that data in inspection operations in their respective States. Global interoperability is a major objective of the standardized specifications for placement of both eye-readable and machine readable data in all MRTDs. [15] IC Dedicated Support Software That part of the IC Dedicated Software (refer to above) which provides functions after TOE Delivery. The usage of parts of the IC Dedicated Software might be restricted to certain phases. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 64 of 68 Term Definition IC Dedicated Test Software That part of the IC Dedicated Software (refer to above) which is used to test the TOE before TOE Delivery but which does not provide any functionality thereafter. IC Identification Data The IC manufacturer writes a unique IC identifier to the chip to control the IC as MRTD material during the IC manufacturing and the delivery process to the MRTD manufacturer. Impostor A person who applies for and obtains a document by assuming a false name and identity, or a person who alters his or her physical appearance to represent himself or herself as another person for the purpose of using that person‘s document. [15] Improperly documented person A person who travels, or attempts to travel with: (a) an expired travel document or an invalid visa; (b) a counterfeit, forged or altered travel document or visa; (c) someone else‘s travel document or visa; or (d) no travel document or visa, if required. [15] Initialization Process of writing Initialization Data (see below) to the TOE (cf.1.7, TOE lifecycle phase 2 step 3). Initialization Data Any data defined by the TOE Manufacturer and injected into the non-volatile memory by the Integrated Circuits manufacturer (Phase 2). These data are for instance used for traceability and for IC identification as MRTD‘s material (IC identification data). Inspection The act of a State examining an MRTD presented to it by a traveler (the MRTD holder) and verifying its authenticity. [15] Inspection system (IS) A technical system used by the border control officer of the receiving State (i) examining an MRTD presented by the traveler and verifying its authenticity and (ii) verifying the traveler as MRTD holder. Integrated circuit (IC) Electronic component(s) designed to perform processing and/or memory functions. The MRTD‘s chip is an integrated circuit. Integrity Ability to confirm the MRTD and its data elements on the MRTD‘s chip have not been altered from that created by the issuing State or Organization. Issuing Organization Organization authorized to issue an official travel document (e.g. the United Nations Organization, issuer of the Laissez-passer). [15] Issuing State The Country issuing the MRTD. [15] Logical Data Structure (LDS) The collection of groupings of Data Elements stored in the optional capacity expansion technology [15]. The capacity expansion technology used is the MRTD‘s chip. Logical MRTD Data of the MRTD holder stored according to the Logical Data Structure [15] as specified by ICAO on the contactless integrated circuit. It presents contactless readable data including (but not limited to) a. personal data of the MRTD holder b. the digital Machine Readable Zone Data (digital MRZ data, EF.DG1), c. the digitized portraits (EF.DG2), d. the biometric reference data of finger(s) (EF.DG3) or iris image(s) (EF.DG4) or both and e. the other data according to LDS (EF.DG5 to EF.DG16) f. EF.COM and EF.SOD Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 65 of 68 Term Definition Logical travel document Data stored according to the Logical Data Structure as specified by ICAO in the contactless integrated circuit including (but not limited to) (1) data contained in the machine-readable zone (mandatory), (2) digitized photographic image (mandatory) and (3) fingerprint image(s) and/or iris image(s) (optional). Machine readable travel document (MRTD) Official document issued by a State or Organization which is used by the holder for international travel (e.g. passport, visa, official document of identity) and which contains mandatory visual (eye readable) data and a separate mandatory data summary, intended for global use, reflecting essential data elements capable of being machine read. [15] Machine readable visa (MRV) A visa or, where appropriate, an entry clearance (hereinafter collectively referred to as visas) conforming to the specifications contained herein, formulated to improve facilitation and enhance security for the visa holder. Contains mandatory visual (eye readable) data and a separate mandatory data summary capable of being machine read. The MRV is normally a label which is attached to a visa page in a passport. [15] Machine readable zone (MRZ) Fixed dimensional area located on the front of the MRTD or MRP Data Page or, in the case of the TD1, the back of the MRTD, containing mandatory and optional data for machine reading using OCR methods. [15] Machine-verifiable biometrics feature A unique physical personal identification feature (e.g. an iris pattern, fingerprint or facial characteristics) stored on a travel document in a form that can be read and verified by machine. [15] MRTD application Non-executable data defining the functionality of the operating system on the IC as the MRTD‘s chip. It includes - the file structure implementing the LDS [15], - the definition of the User Data, but does not include the User Data itself (i.e. content of EF.DG1 to EF.DG13, EF.DG16, EF.COM and EF.SOD) and - the TSF Data including the definition the authentication data but except the authentication data itself. MRTD Basic Access Control Mutual authentication protocol followed by secure messaging between the inspection system and the MRTD‘s chip based on MRZ information as key seed and access condition to data stored on MRTD‘s chip according to LDS. MRTD holder The rightful holder of the MRTD for whom the issuing State or Organization personalized the MRTD. MRTD‘s Chip A contactless integrated circuit chip complying with ISO/IEC 14443 and programmed according to the Logical Data Structure as specified by ICAO. MRTD‘s chip Embedded Software Software embedded in a MRTD‘s chip and not being developed by the IC Designer. The MRTD‘s chip Embedded Software is designed in Phase 1 and embedded into the MRTD‘s chip in Phase 2 of the TOE life-cycle. Optional biometric reference data Data stored for biometric authentication of the MRTD holder in the MRTD‘s chip as (i) encoded finger image(s) (EF.DG3) or (ii) encoded iris image(s) (EF.DG4) or (iii) both. Note, that the European commission decided to use only fingerprint and not to use iris images as optional biometric reference data. Passive authentication (i) verification of the digital signature of the Document Security Object and (ii) comparing the hash values of the read LDS data fields with the hash values contained in the Document Security Object Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 66 of 68 Term Definition Personalization The process by which the portrait, signature and biographical data are applied to the document. This may also include the optional biometric data collected during the ―Enrolment‖ (cf.1.7, TOE lifecycle phase 3 step 6). Personalization Agent The agent acting on the behalf of the issuing State or Organization to personalize the MRTD for the holder by (i) establishing the identity the holder for the biographic data in the MRTD, (ii) enrolling the biometric reference data of the MRTD holder i.e. the portrait, the encoded finger image(s) or (ii) the encoded iris image(s) and (iii) writing these data on the physical and logical MRTD for the holder. Personalization Agent Authentication Information TSF data used for authentication proof and verification of the Personalization Agent. Personalization Agent Key Symmetric cryptographic authentication key used (i) by the Personalization Agent to prove his identity and to get access to the logical MRTD and (ii) by the MRTD‘s chip to verify the authentication attempt of a terminal as Personalization Agent according to the SFR FIA_UAU.4, FIA_UAU.5 and FIA_UAU.6. Physical travel Document Travel document in form of paper, plastic and chip using secure printing to present data including (but not limited to) (1) biographical data, (2) data of the machine-readable zone, (3) photographic image and (4) other data Pre-Personalization Process of writing Pre-Personalization Data (see below) to the TOE including the creation of the MRTD Application (cf. 1.7, TOE lifecycle phase 2 step 5) Pre-personalization Data Any data that is injected into the non-volatile memory of the TOE by the MRTD Manufacturer (Phase 2) for traceability of non-personalized MRTD‘s and/or to secure shipment within or between lifecycle phases 2 and 3. It contains (but is not limited to) the Active Authentication Key Pair and the Personalization Agent Key Pair. Pre-personalized MRTD‘s chip MRTD‘s chip equipped with a unique identifier and a unique asymmetric Active Authentication Key Pair of the chip. Receiving State The Country to which the Traveler is applying for entry. [15] Reference data Data enrolled for a known identity and used by the verifier to check the verification data provided by an entity to prove this identity in an authentication attempt. Secondary image A repeat image of the holder‘s portrait reproduced elsewhere in the document by whatever means. [15] Secure messaging in encrypted mode Secure messaging using encryption and message authentication code according to ISO/IEC 7816-4 Skimming Imitation of the inspection system to read the logical MRTD or parts of it via the contactless communication channel of the TOE without knowledge of the printed MRZ data. Terminal Authorization Intersection of the Certificate Holder Authorizations defined by the Inspection System Certificate, the Document Verifier Certificate and Country Verifying Certification Authority which shall be all valid for the Current Date. Travel document A passport or other official document of identity issued by a State or Organization which may be used by the rightful holder for international travel. Traveler Person presenting the MRTD to the inspection system and claiming the identity of the MRTD holder. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 67 of 68 Term Definition TSF data Data created by and for the TOE that might affect the operation of the TOE. Unpersonalized MRTD The MRTD that contains the MRTD Chip holding only Initialization Data and Pre-personalization Data as delivered to the Personalization Agent from the Manufacturer. User data Data created by and for the user that does not affect the operation of the TSF. Verification The process of comparing a submitted biometric sample against the biometric reference template of a single enrollee whose identity is being claimed, to determine whether it matches the enrollee‘s template. [15] Verification data Data provided by an entity in an authentication attempt to prove their identity to the verifier. The verifier checks whether the verification data match the reference data known for the claimed identity. Athena Smartcard, Inc. REF: ST-ICAO-01 V2.3 Cassiope Confidential Material Page 68 of 68 10. References [1] Common Criteria for Information Technology Security Evaluation - CCMB-2009-07-001 - Part 1: Introduction and general model, Revision 3, July 2009. [2] Common Criteria for Information Technology Security Evaluation - CCMB-2009-07-002 - Part 2: Security functional requirements, Revision 3, July 2009. [3] Common Criteria for Information Technology Security Evaluation - CCMB-2009-07-003 - Part 3: Security assurance requirements, Revision 3, July 2009. [4] BSI-CC-PP0055 – Protection Profile - Machine Readable Travel Document with ―ICAO Application‖, Basic Access Control – EAL 4+ – Version: 1.10, 25th March 2009 [5] BSI-CC-PP0056 – Protection Profile - Machine Readable Travel Document with ―ICAO Application‖, Extended Access Control – EAL 4+ – Version: 1.10, 25th March 2009 [6] STMicroelectronics 23YR80 Technical Datasheet – Revision 2 [7] STMicroelectronics 23YR48 Technical Datasheet – Revision 1 [8] BSI-PP-0035-2007 – Security IC Platform Protection Profile – version 1.0 – EAL4+ [9] Certification Report ANSSI-2010/02 – STMicroelectronics – Feb 10, 2010 [10] Sx23YRxxB Security Target - Public Version – Ref: SMD_Sx23YRxx_ST_09_002 – STMicroelectronics – version 02.01 [11] PKCS#1: RSA Cryptography Standard, Version 1.5 [12] Java Card 2.2.2 Specification. March 2006. Published by Sun Microsystems, Inc. - Virtual Machine Specification [JCVM] - Application Programming Interface [JCAPI] - Runtime Environment Specification [JCRE] [13] GlobalPlatform, Card Specification, Version 2.1.1, March 2003 [14] CCDB-2007-09-001 – Composite product evaluation for Smart Cards and similar devices – Version: 1.0, revision 1, September 2007 [15] ICAO Doc 9303, Machine Readable Travel Documents, part 1 – Machine Readable Passports, Sixth Edition, 2006, International Civil Aviation Organization [16] TR-03110, Technical Guideline Advanced Security Mechanisms for Machine Readable Travel Documents – Extended Access Control (EAC), Version 1.11, BSI [17] ISO/IEC 9796-2: Information technology — Security techniques — Signature Schemes giving message recovery — Part 2: Integer factorization based mechanisms, 2002 [18] FIPS PUB 180-2, FIPS Publication – Secure hash standard (+ Change Notice to include SHA- 224), 2002, NIST [19] FIPS PUB 46-3, FIPS Publication – Data Encryption Standard (DES), Reaffirmed 1999 October 25, U.S. Department of Commerce/NIST [20] IEEE 1363-2000 – IEEE Standard Specification for Public-Key Cryptography