TrustCB B.V.
Registered address:
Van den Berghlaan 48, 2132 AT
Hoofddorp, The Netherlands
nscib@trustcb.com
https://trustcb.com/common-criteria/nscib/
https://nscib.nl
TrustCB B.V. is a registered company at the
Netherlands Chamber of Commerce (KVK),
under number 858360275.
Version
2023-11
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Certification Report
NXP SN300 B2 Series - Secure Element version SN300_SE
B2.1.001 JB
Sponsor and developer: NXP Semiconductors Germany GmbH
Beiersdorfstraße 12
22529 Hamburg
Germany
Evaluation facility: TÜV Informationstechnik GmbH
Am TÜV 1
45307 Essen
Germany
Report number: NSCIB-CC-2200030-02-CR
Report version: 1
Project number: NSCIB-2200030-02
Author(s): Jordi Mujal
Date: 19 November 2024
Number of pages: 11
Number of appendices: 0
Reproduction of this report is authorised only if the report is reproduced in its entirety.
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CONTENTS
Foreword 3
Recognition of the Certificate 4
International recognition 4
European recognition 4
1 Executive Summary 5
2 Certification Results 6
2.1 Identification of Target of Evaluation 6
2.2 Security Policy 6
2.3 Assumptions and Clarification of Scope 7
2.3.1 Assumptions 7
2.3.2 Clarification of scope 7
2.4 Architectural Information 7
2.5 Documentation 7
2.6 IT Product Testing 8
2.6.1 Testing approach and depth 8
2.6.2 Independent penetration testing 8
2.6.3 Test configuration 8
2.6.4 Test results 8
2.7 Reused Evaluation Results 9
2.8 Evaluated Configuration 9
2.9 Evaluation Results 9
2.10 Comments/Recommendations 9
3 Security Target 10
4 Definitions 10
5 Bibliography 11
Page: 3/11 of report number: NSCIB-CC-2200030-02-CR, dated 19 November 2024
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Foreword
The Netherlands Scheme for Certification in the Area of IT Security (NSCIB) provides a third-party
evaluation and certification service for determining the trustworthiness of Information Technology (IT)
security products. Under this NSCIB, TrustCB B.V. has the task of issuing certificates for IT security
products, as well as for protection profiles and sites.
Part of the procedure is the technical examination (evaluation) of the product, protection profile or site
according to the Common Criteria assessment guidelines published by the NSCIB. Evaluations are
performed by an IT Security Evaluation Facility (ITSEF) under the oversight of the NSCIB Certification
Body, which is operated by TrustCB B.V. in cooperation with the Ministry of the Interior and Kingdom
Relations.
An ITSEF in the Netherlands is a commercial facility that has been licensed by TrustCB B.V. to
perform Common Criteria evaluations; a significant requirement for such a licence is accreditation to
the requirements of ISO Standard 17025 “General requirements for the accreditation of calibration and
testing laboratories”.
By awarding a Common Criteria certificate, TrustCB B.V. asserts that the product or site complies with
the security requirements specified in the associated (site) security target, or that the protection profile
(PP) complies with the requirements for PP evaluation specified in the Common Criteria for
Information Security Evaluation. A (site) security target is a requirements specification document that
defines the scope of the evaluation activities.
The consumer should review the (site) security target or protection profile, in addition to this
certification report, to gain an understanding of any assumptions made during the evaluation, the IT
product's intended environment, its security requirements, and the level of confidence (i.e., the
evaluation assurance level) that the product or site satisfies the security requirements stated in the
(site) security target.
Reproduction of this report is authorised only if the report is reproduced in its entirety.
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Recognition of the Certificate
Presence of the Common Criteria Recognition Arrangement (CCRA) and the SOG-IS logos on the
certificate indicates that this certificate is issued in accordance with the provisions of the CCRA and
the SOG-IS Mutual Recognition Agreement (SOG-IS MRA) and will be recognised by the participating
nations.
International recognition
The CCRA was signed by the Netherlands in May 2000 and provides mutual recognition of certificates
based on the Common Criteria (CC). Since September 2014 the CCRA has been updated to provide
mutual recognition of certificates based on cPPs (exact use) or STs with evaluation assurance
components up to and including EAL2+ALC_FLR.
For details of the current list of signatory nations and approved certification schemes, see
http://www.commoncriteriaportal.org.
European recognition
The SOG-IS MRA Version 3, effective since April 2010, provides mutual recognition in Europe of
Common Criteria and ITSEC certificates at a basic evaluation level for all products. A higher
recognition level for evaluation levels beyond EAL4 (respectively E3-basic) is provided for products
related to specific technical domains. This agreement was signed initially by Finland, France,
Germany, The Netherlands, Norway, Spain, Sweden and the United Kingdom. Italy joined the SOG-IS
MRA in December 2010.
For details of the current list of signatory nations, approved certification schemes and the list of
technical domains for which the higher recognition applies, see https://www.sogis.eu.
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1 Executive Summary
This Certification Report states the outcome of the Common Criteria security evaluation of the NXP
SN300 B2 Series - Secure Element version SN300_SE B2.1.001 JB. The developer of the NXP
SN300 B2 Series - Secure Element version SN300_SE B2.1.001 JB is NXP Semiconductors Germany
GmbH located in Hamburg, Germany and they also act as the sponsor of the evaluation and
certification . A Certification Report is intended to assist prospective consumers when judging the
suitability of the IT security properties of the product for their particular requirements.
The TOE is a Security Integrated Circuit Platform for operating systems and applications with high
security requirements.
The TOE incorporates a high frequency clocked ARM Cortex M33 processor augmented with its
dedicated coprocessor for symmetric cryptography (SYM-lite), a secure copy machine (SMA), a
Public-Key Cryptography (PKC) coprocessor, and a random number generator.
On-chip memories are Flash memory, ROM and RAMs. The ROM contains the IC dedicated software
for factory testing, program upload, and the flash memory drivers.
In addition, the hardware embeds sensors which ensure the proper operating conditions of the device.
Integrity protection of data and code involves error correction and error detection codes, EMFI
detector, light sensing and other security functionality. Memory encryption and masking mechanisms
are implemented to preserve the confidentiality of the stored data. The IC hardware is shielded against
physical attacks. And the “lockstep” (redundant) CPU provides protection against faults in the CPU.
The TOE was evaluated initially by TÜV Informationstechnik GmbH located in Essen, Germany and
was certified on 14 June 2023. The re-evaluation of the TOE has also been conducted by TÜV
Informationstechnik GmbH and was completed on 19 November 2024 with the approval of the ETR.
The re-certification procedure has been conducted in accordance with the provisions of the
Netherlands Scheme for Certification in the Area of IT Security [NSCIB].
This second issue of the Certification Report is a result of a “recertification with major changes”.
The major changes are:
- Updates regarding the TOE involved sites
The security evaluation reused the evaluation results of previously performed evaluations. A full, up-
to-date vulnerability analysis has been made, as well as renewed testing.
The scope of the evaluation is defined by the security target [ST], which identifies assumptions made
during the evaluation, the intended environment for the NXP SN300 B2 Series - Secure Element
version SN300_SE B2.1.001 JB, the security requirements, and the level of confidence (evaluation
assurance level) at which the product is intended to satisfy the security requirements. Consumers of
the NXP SN300 B2 Series - Secure Element version SN300_SE B2.1.001 JB are advised to verify that
their own environment is consistent with the security target, and to give due consideration to the
comments, observations and recommendations in this certification report.
The results documented in the evaluation technical report [ETR] 1 for this product provide sufficient
evidence that the TOE meets the EAL5 augmented (EAL5+) assurance requirements for the evaluated
security functionality. This assurance level is augmented with ALC_DVS.2 (Sufficiency of security
measures), ALC_FLR.1 (Basic flaw remediation), ASE_TSS.2 (TOE summary specification with
architectural design summary), and AVA_VAN.5 (Advanced methodical vulnerability analysis).
The evaluation was conducted using the Common Methodology for Information Technology Security
Evaluation, Version 3.1 Revision 5 [CEM] for conformance to the Common Criteria for Information
Technology Security Evaluation, Version 3.1 Revision 5 [CC] (Parts I, II and III).
TrustCB B.V., as the NSCIB Certification Body, declares that the evaluation meets all the conditions
for international recognition of Common Criteria Certificates and that the product will be listed on the
NSCIB Certified Products list. Note that the certification results apply only to the specific version of the
product as evaluated.
1 The Evaluation Technical Report contains information proprietary to the developer and/or the
evaluator, and is not available for public review.
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2 Certification Results
2.1 Identification of Target of Evaluation
The Target of Evaluation (TOE) for this evaluation is the NXP SN300 B2 Series - Secure Element
version SN300_SE B2.1.001 JB from NXP Semiconductors Germany GmbH located in Hamburg,
Germany.
The TOE is comprised of the following main components:
Delivery
item type
Identifier Version
Hardware NXP SN300 B2 Series - Secure Element B2.1.001 JB
IC
dedicated
software
in ROM
FactoryOS 2.4.4
BootOS 2.4.2
Flash Driver Software 2.4.5
To ensure secure usage a set of guidance documents is provided, together with the NXP SN300 B2
Series - Secure Element version SN300_SE B2.1.001 JB. For details, see section 2.5
“Documentation” of this report.
For a detailed and precise description of the TOE lifecycle, see the [ST], Chapter 1.3.3.
2.2 Security Policy
The TOE maintains:
• the integrity and confidentiality of code and data stored in its memories;
• the different CPU modes with the related capabilities for configuration and memory access;
• the integrity, the correct operation and the confidentiality of security functionality provided by
the TOE.
This is ensured by the construction of the TOE and its security functionality.
The TOE provides a hardware platform for an implementation of a smartcard application with:
• hardware to perform computations on multi-precision integers, which are suitable for public-
key cryptography
• hardware to perform symmetric encryption
• hardware to provide True Random Numbers
• memory management control;
• an ISO/IEC 7816 contact interface with UART.
• Serial Peripheral Interface (SPI)
• 2x I2C interfaces
• I3C interface (shared pins with second I2C interface)
• SPMI Interface
• GPIO interface by use of Special Function Registers
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2.3 Assumptions and Clarification of Scope
2.3.1 Assumptions
The assumptions defined in the Security Target are not covered by the TOE itself. These aspects lead
to specific Security Objectives to be fulfilled by the TOE-Environment. For detailed information on the
security objectives that must be fulfilled by the TOE environment, see section 4.2 of the [ST].
2.3.2 Clarification of scope
The evaluation did not reveal any threats to the TOE that are not countered by the evaluated security
functions of the product.
The secure operation of cryptographic functionality in 2.2 requires a Cryptographic Library which is not
part of this TOE. Therefore, Security Services and Security Features using this cryptographic
functionality need to be evaluated in the composite product together with Cryptographic Library as part
of the Security IC Embedded Software. As a consequence, for the Cryptographic Functionality, the
scope of this evaluation is confined to protection against physical manipulation.
2.4 Architectural Information
The following diagram represents the TOE architecture:
2.5 Documentation
The following documentation is provided with the product by the developer to the customer:
Identifier Version
SN300_SE B2 Information on Guidance and Operation 0.3
SN300V2, R2; Single Chip Secured (NFC) controller, Product data sheet 1.6
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SN300V2 TOE Identification (for B2.1.001), Data sheet addendum, 0.2
SN300_SE Programmer's Manual (for revision B0 to B2), Application Note AN12729 0.5
ARM® Cortex®-M33 Processor Technical Reference Material r1p0
2.6 IT Product Testing
Testing (depth, coverage, functional tests, independent testing): The evaluators examined the
developer’s testing activities documentation and verified that the developer has met their testing
responsibilities.
2.6.1 Testing approach and depth
The developer performed extensive testing on functional specification, subsystem and SFR-enforcing
module level. All parameter choices were addressed at least once. All boundary cases identified were
tested explicitly, and additionally the near-boundary conditions were covered probabilistically. The
testing was largely automated using industry standard and proprietary test suites. Test scripts were
used extensively to verify that the functions return the expected values.
The underlying hardware and crypto-library test results are extendable to composite evaluations,
because the underlying platform is operated according to its guidance and the composite evaluation
requirements are met.
For the testing performed by the evaluators, the developer provided samples and a test environment.
The evaluators reproduced a selection of the developer tests, as well as a small number of test cases
designed by the evaluator.
2.6.2 Independent penetration testing
Based on a list of potential vulnerabilities applicable to the TOE in its operational environment created
during vulnerability analysis the evaluators devised the attack scenarios for penetration tests when
they were of the opinion, that those potential vulnerabilities could be exploited in the TOE’s operational
environment. While doing this, also the aspects of the security architecture were considered for
penetration testing.
Source code reviews of the provided implementation representation accompanied the development of
test cases and were used to find input for testing. The code inspection also supported the testing
activities because they enabled the evaluator to verify implementation aspects that could hardly be
covered by test cases.
The total test effort expended by the evaluators was 19 days. During that test campaign, 37% of the
total time was spent on Perturbation attacks, 37 on side-channel testing, and 26% on logical tests.
2.6.3 Test configuration
The configuration of the sample used for independent evaluator testing and penetration testing was
the same as described in the [ST].
2.6.4 Test results
The testing activities, including configurations, procedures, test cases, expected results and observed
results are summarised in the [ETR], with references to the documents containing the full details.
The developer’s tests and the independent functional tests produced the expected results, giving
assurance that the TOE behaves as specified in its [ST] and functional specification.
No exploitable vulnerabilities were found with the independent penetration tests.
The algorithmic security level of cryptographic functionality has not been rated in this certification
process, but the current consensus on the algorithmic security level in the open domain, i.e., from the
current best cryptanalytic attacks published, has been taken into account.
The algorithmic security level exceeds 100 bits for all evaluated cryptographic functionality as required
for high attack potential (AVA_VAN.5).
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The strength of the implementation of the cryptographic functionality has been assessed in the
evaluation, as part of the AVA_VAN activities.
For composite evaluations, please consult the [ETRfC] for details.
2.7 Reused Evaluation Results
This is a re-certification. Documentary evaluation results of the earlier version of the TOE have been
reused, but vulnerability analysis and penetration testing has been renewed.
There has been extensive reuse of the ALC aspects for the sites involved in the development and
production of the TOE, by use of multiple site certificates and Site Technical Audit Reports.
No sites have been visited as part of this evaluation.
2.8 Evaluated Configuration
The TOE is defined uniquely by its name and version number NXP SN300 B2 Series - Secure
Element version SN300_SE B2.1.001 JB.
2.9 Evaluation Results
The evaluation lab documented their evaluation results in the [ETR], which references an ASE
Intermediate Report and other evaluator documents. To support composite evaluations according to
[COMP] a derived document [ETRfC] was provided and approved. This document provides details of
the TOE evaluation that must be considered when this TOE is used as platform in a composite
evaluation.
The verdict of each claimed assurance requirement is “Pass”.
Based on the above evaluation results the evaluation lab concluded the NXP SN300 B2 Series -
Secure Element version SN300_SE B2.1.001 JB, to be CC Part 2 extended, CC Part 3 conformant,
and to meet the requirements of EAL 5 augmented with ASE_TSS.2, ALC_FLR.1, ALC_DVS.2, and
AVA_VAN.5. This implies that the product satisfies the security requirements specified in Security
Target [ST].
The Security Target claims strict conformance to the Protection Profile [PP].
2.10 Comments/Recommendations
The user guidance as outlined in section 2.5 “Documentation” contains necessary information about
the usage of the TOE. Certain aspects of the TOE’s security functionality, in particular the
countermeasures against attacks, depend on accurate conformance to the user guidance of both the
software and the hardware part of the TOE. There are no particular obligations or recommendations
for the user apart from following the user guidance. Please note that the documents contain relevant
details concerning the resistance against certain attacks.
In addition, all aspects of assumptions, threats and policies as outlined in the Security Target not
covered by the TOE itself must be fulfilled by the operational environment of the TOE.
The customer or user of the product shall consider the results of the certification within his system risk
management process. For the evolution of attack methods and techniques to be covered, the
customer should define the period of time until a re-assessment for the TOE is required and thus
requested from the sponsor of the certificate.
The strength of the cryptographic algorithms and protocols was not rated in the course of this
evaluation. This specifically applies to the following proprietary or non-standard algorithms, protocols
and implementations: none.
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3 Security Target
The NXP SN300 B2 SE - Security Target, Version 0.9, 9 May 2023 [ST] is included here by reference.
Please note that, to satisfy the need for publication, a public version [ST-lite] has been created and
verified according to [ST-SAN].
4 Definitions
This list of acronyms and definitions contains elements that are not already defined by the CC or CEM:
IT Information Technology
ITSEF IT Security Evaluation Facility
JIL Joint Interpretation Library
NFC Near-Field Communication
NSCIB Netherlands Scheme for Certification in the area of IT security
PP Protection Profile
RNG Random Number Generator
SHA Secure Hash Algorithm
SMB Secure Mailbox
TOE Target of Evaluation
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5 Bibliography
This section lists all referenced documentation used as source material in the compilation of this
report.
[CC] Common Criteria for Information Technology Security Evaluation, Parts I, II and
III, Version 3.1 Revision 5, April 2017
[CEM] Common Methodology for Information Technology Security Evaluation,
Version 3.1 Revision 5, April 2017
[COMP] Joint Interpretation Library, Composite product evaluation for Smart Cards and
similar devices, Version 1.5.1, May 2018
[ETR] EVALUATION TECHNICAL REPORT SUMMARY (ETR SUMMARY),
8122254433 / NSCIB-CC-2200030-02, version 2, 18 November 2024
[ETRfC] EVALUATION TECHNICAL REPORT FOR COMPOSITE EVALUATION (ETR
COMP), 8122254433 / NSCIB-CC-2200030-02, version 2, 18 November 2024
[JIL-AAPS] JIL Application of Attack Potential to Smartcards, Version 3.2.1, February 2024
[JIL-AMS] Attack Methods for Smartcards and Similar Devices, Version 2.5, May 2022
(sensitive with controlled distribution)
[NSCIB] Netherlands Scheme for Certification in the Area of IT Security, Version 2.6,
02 August 2022
[PP] Security IC Platform Protection Profile with Augmentation Packages, registered
under the reference BSI-CC-PP-0084-2014, Version 1.0, 13 January 2014
[ST] NXP SN300 B2 SE - Security Target, Version 0.9, 9 May 2023
[ST-lite] NXP SN300 Series – Secure Element, Security Target Lite, Rev. 0.9, 09 May
2023
[ST-SAN] ST sanitising for publication, CC Supporting Document CCDB-2006-04-004,
April 2006
(This is the end of this report.)