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
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
Certification Report
Goodix Security Chip GSE20 Series with IC Dedicated
Software, version A1.1 D0
Sponsor and developer: Shenzhen Goodix Technology Co., Ltd., P.R. China
F13, Phase B, Tengfei Industrial Building, Futian Free Trade
Zone
Shenzhen
P.R. China
Evaluation facility: SGS Brightsight B.V.
Brassersplein 2
2612 CT Delft
The Netherlands
Report number: NSCIB-CC-2300076-01-CR
Report version: 1
Project number: NSCIB-2300076-01
Author(s): Jordi Mujal
Date: 24 June 2024
Number of pages: 13
Number of appendices: 0
Reproduction of this report is authorised only if the report is reproduced in its entirety.
Page: 2/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
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 7
2.3 Assumptions and Clarification of Scope 7
2.3.1 Assumptions 7
2.3.2 Clarification of scope 8
2.4 Architectural Information 8
2.5 Documentation 8
2.6 IT Product Testing 8
2.6.1 Testing approach and depth 8
2.6.2 Independent penetration testing 9
2.6.3 Test configuration 9
2.6.4 Test results 9
2.7 Reused Evaluation Results 10
2.8 Evaluated Configuration 10
2.9 Evaluation Results 10
2.10 Comments/Recommendations 10
3 Security Target 12
4 Definitions 12
5 Bibliography 13
Page: 3/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
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.
Page: 4/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
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.
Page: 5/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
1 Executive Summary
This Certification Report states the outcome of the Common Criteria security evaluation of the Goodix
Security Chip GSE20 Series with IC Dedicated Software, version A1.1 D0. The developer of the
Goodix Security Chip GSE20 Series with IC Dedicated Software, version A1.1 D0 is Shenzhen Goodix
Technology Co., Ltd. located in Shenzhen, P.R. China 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 an Embedded-Flash-based secure microcontroller platform with IC Dedicated Software.
The applications can be executed securely and with good performance in this platform.
The TOE has been evaluated by SGS Brightsight B.V located in Delft, The Netherlands. The
evaluation was completed on 24 June 2024 with the approval of the ETR. The certification procedure
has been conducted in accordance with the provisions of the Netherlands Scheme for Certification in
the Area of IT Security [NSCIB].
The scope of the evaluation is defined by the security target [ST], which identifies assumptions made
during the evaluation, the intended environment for the Goodix Security Chip GSE20 Series with IC
Dedicated Software, version A1.1 D0, 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 Goodix Security Chip GSE20 Series with IC Dedicated Software, version A1.1 D0
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 EAL6 augmented (EAL6+) assurance requirements for the evaluated
security functionality. This assurance level is augmented with ALC_FLR.1 (Basic flaw remediation)
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.
Page: 6/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
2 Certification Results
2.1 Identification of Target of Evaluation
The Target of Evaluation (TOE) for this evaluation is the Goodix Security Chip GSE20 Series with IC
Dedicated Software, version A1.1 D0 from Shenzhen Goodix Technology Co., Ltd. located in
Shenzhen, P.R. China.
The TOE is comprised of the following main components:
Delivery
item type
Identifier Version
Hardware IC A1
Software
Boot OS
v1 0100
Root0
Analysis OS
HAL
Crypto Library v1 0101
To ensure secure usage a set of guidance documents is provided, together with the Goodix Security
Chip GSE20 Series with IC Dedicated Software, version A1.1 D0. For details, see section 2.5
“Documentation” of this report.
For a detailed and precise description of the TOE lifecycle, see the [ST], Chapter 1.3.4.
Page: 7/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
2.2 Security Policy
The TOE provides the following major security functionalities:
• CPU supporting unprivileged and privileged modes for access control
• CPU Monitor ensuring the correct execution of the programs
• SAHB with bus protection
• MMU supporting access control to memories and SFRs of the hardware components
• Memory encrypted and integrity protection for all embedded memories (Flash and its
• cache, ROM, SYSRAM, PKCRAM)
• Register integrity protection for critical registers
• AES with countermeasures against SCA and DFA attacks
• Galois/Counter Mode (GCM) mode for AES
• TDES with countermeasures against SCA and DFA attacks
• RSA cryptography, including key generation, with countermeasures against SCA and DFA
• ECC cryptography, including key generation, with countermeasures against SCA and DFA
• Diffie-Hellman functions with X25519, including key generation, with countermeasures
against SCA and DFA attacks
• KDF functions
• TRNG conforming to class PTG.2 of AIS-20/31
• DRNG conforming to class DRG.3 of AIS-20/31
• CRC calculation with hardware acceleration
• Secure SHA-256 calculation
• HMAC functions
• Active Shielding resisting physical attacks
• Physical Sensors: Light Sensor, Low/High Voltage Sensor, Spike Sensor, Low/High
• Frequency Sensor, Low/High Temperature Sensor
• Test Mode and Analysis Mode protection
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].
Page: 8/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
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.
Please note that the TOE contains additional HW accelerators, HAL and CL APIs not explicitly claimed
in the [ST]. The functionality and security of these features have not explicitly been addressed in this
certification. Therefore, if these features are required by the composite product the
developer/evaluator should do their own security analysis and/or testing.
2.4 Architectural Information
The TOE architecture, originating from the Security Target [ST], can be depicted as follows:
2.5 Documentation
The following documentation is provided with the product by the developer to the customer:
Identifier Version
GSE20 Datasheet 1.0
GSE20 Preparative Procedures 1.3
GSE20 User Manual 0.4
GSE20 Security User Guidance Manual 1.4
HAL and Crypto Library Header File 0101
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 following test approaches are used:
Page: 9/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
• Factory testing: The purpose of Factory test is to assure the chips meet the design
specification and reduce earlier failure in mass production flow.
• Simulation testing: It is done in Linux system with EDA tool and Scripts to realized simulation
Test. Simulation test is used in chip development for digital function the logic, analog function,
chip level verification to make sure design meet our target.
• Emulator testing: Emulator tests are performed with FPGA emulator during development for IC
dedicated software. They guarantee the functionality of TOE software functions and
mechanisms. The software coverage test is done as part of the FPGA testing.
• Engineering sample testing: It is done in lab for OS/HAL/CL validation, execute all emulator
tests, and analog IP validation and characteristic testing which not covered by Factory test.
• Quality testing: Quality testing contains chip level ESD, system level ESD, OLT, NVM cycling
for endurance to ensure the overall quality of the chip.
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
The methodical analysis performed was conducted along the following steps:
• When evaluating the evidence in the classes ASE, ADV and AGD the evaluator considers
whether potential vulnerabilities can already be identified due to the TOE type and/or specified
behaviour in such an early stage of the evaluation.
• For ADV_IMP a thorough implementation representation review is performed on the TOE.
During this attack oriented analysis, the protection of the TOE is analysed using the
knowledge gained from all previous evaluation classes. This results in the identification of
(additional) potential vulnerabilities. This analysis was performed according to the attack
methods in [JIL- AAPS] and [JIL-AM].
• All potential vulnerabilities are analysed using the knowledge gained from all evaluation
classes and information from the public domain. A judgment was made on how to assure that
these potential vulnerabilities are not exploitable. The potential vulnerabilities are addressed
by penetration testing, a guidance update or in other ways that are deemed appropriate.
The total test effort expended by the evaluators was spent between September 2023 and February
2024,
with 55 man-weeks in total for testing and reporting. During that test campaign, 2% of the total time
was spent on physical attacks, 29% on perturbation attacks, 7% on retrieving keys with FA, 58% on
side-channel attacks and 4% on attacks on RNG.
2.6.3 Test configuration
Part of the independent evaluator testing and penetration testing was performed on an earlier revision
of the TOE. The assurance gained from testing on an earlier revision has been assessed to be valid
for the final TOE version, because the changes introduced were minimal and did not have an impact
on the TSF.
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.
®
TÜV,
TUEV
and
TUV
are
registered
trademarks.
Any
use
or
application
requires
prior
approval.
Page: 10/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
Not all key sizes specified in the [ST] have sufficient cryptographic strength for satisfying the
AVA_VAN.5 “high attack potential”. The TOE supports a wider range of key sizes (see [ST]), including
those with sufficient algorithmic security level to exceed 100 bits as required for high attack potential
(AVA_VAN.5).
The strength of the implementation of the cryptographic functionality has been assessed in the
evaluation, as part of the AVA_VAN activities. These activities revealed that for some cryptographic
functionality the security level could be reduced from an algorithmic security level above 100 bits to a
practical remaining security level lower than 100 bits. The remaining security level still exceeds 80 bits,
so this is considered sufficient. Therefore, no exploitable vulnerabilities were found with the
independent penetration tests.
For composite evaluations, please consult the [ETRfC] for details.
2.7 Reused Evaluation Results
There has been extensive reuse of the ALC aspects for the sites involved in the development and
production of the TOE, by use of 3 Site Technical Audit Reports.
2.8 Evaluated Configuration
The TOE is defined uniquely by its name and version number Goodix Security Chip GSE20 Series
with IC Dedicated Software, version A1.1 D0 with the specific configuration GSE20 A1.1.0 D0 and
GSE20 A1.1.1 D0
2.9 Evaluation Results
The evaluation lab documented their evaluation results in the [ETR], which references an ASE
Intermediate Report and other evaluator documents, and Site Technical Audit Reports for the sites
[STAR_JSCC] 2, [STAR_GHQ], [STAR_GZJ], [STAR_GSZ], [STAR_SJSemi]. 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 Goodix Security Chip GSE20
Series with IC Dedicated Software, version A1.1 D0, to be CC Part 2 extended, CC Part 3
conformant,and to meet the requirements of EAL 6 augmented with ALC_FLR.1. 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.
2 The Site Technical Audit Report contains information necessary to an evaluation lab and
certification body for the reuse of the site audit report in a TOE evaluation.
Page: 11/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
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.
Not all key sizes specified in the [ST] have sufficient cryptographic strength to satisfy the AVA_VAN.5
“high attack potential”. To be protected against attackers with a "high attack potential", appropriate
cryptographic algorithms with sufficiently large cryptographic key sizes shall be used (references can
be found in national and international documents and standards).
Page: 12/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
3 Security Target
The Security Target of Security Chip GSE20 Series with IC Dedicated Software, version 1.10, 19 June
2024 [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:
AES Advanced Encryption Standard
CBC Cipher Block Chaining (a block cipher mode of operation)
CBC-MAC Cipher Block Chaining Message Authentication Code
DES Data Encryption Standard
DFA Differential Fault Analysis
ECB Electronic Code Book (a block-cipher mode of operation)
ECC Elliptic Curve Cryptography
ECDH Elliptic Curve Diffie-Hellman algorithm
ECDSA Elliptic Curve Digital Signature Algorithm
EMA Electromagnetic Analysis
IC Integrated Circuit
IT Information Technology
ITSEF IT Security Evaluation Facility
JIL Joint Interpretation Library
MAC Message Authentication Code
NSCIB Netherlands Scheme for Certification in the area of IT Security
PP Protection Profile
RMI Remote Method Invocation
RNG Random Number Generator
RSA Rivest-Shamir-AdlemanAlgorithm
SHA Secure Hash Algorithm
SPA/DPA Simple/Differential Power Analysis
TOE Target of Evaluation
TRNG True Random Number Generator
Page: 13/13 of report number: NSCIB-CC-2300076-01-CR, dated 24 June 2024
®
TrustCB
is
a
registered
trademark.
Any
use
or
application
requires
prior
approval.
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 “Goodix Security Chip GSE20” – EAL6+, Version
5.0, 19 June 2024
[ETRfC] Evaluation Technical Report for Composition “Goodix Security Chip GSE20” –
EAL6+, Version 3.0, 19 June 2024
[JIL-AAPS] JIL Application of Attack Potential to Smartcards, Version 3.2, November 2022
[JIL-AMS] Attack Methods for Smartcards and Similar Devices, Version 2.4, January 2020
(sensitive with controlled distribution)
[NSCIB] Netherlands Scheme for Certification in the Area of IT Security, Version 2.6,
02 August 2022
[PP_0084] Security IC Platform Protection Profile with Augmentation Packages, registered
under the reference BSI-CC-PP-0084-2014, Version 1.0, 13 January 2014
[ST] Security Target of Security Chip GSE20 Series with IC Dedicated Software,
version 1.10, 19 June 2024
[ST-lite] Security Target Lite of Security Chip GSE20 Series with IC Dedicated
Software, version 1.10, 19 June 2024
[ST-SAN] ST sanitising for publication, CC Supporting Document CCDB-2006-04-004,
April 2006
[STAR_JSCC] STAR JSCC Site, 23-RPT-919, v3.0, 17 June 2024
[STAR_GHQ] STAR Goodix Shanghai Hongqiao Site, 23-RPT-921, v3.0, 17 June 2024
[STAR_GZJ] STAR Goodix Shanghai Zhangjiang Site, 23-RPT-921, v3.0, 17 June 2024
[STAR_GSZ] STAR Goodix Shenzhen Site, 23-RPT-922, v3.0, 17 June 2024
[STAR_SJSemi] STAR SJSemi site 23-RPT-923, v3.0, 17 June 2024
(This is the end of this report.)