KECS-CR-20-61
Smart TV Security Solution V5.0 for Samsung Knox
Certification Report
Certification No.: KECS-CISS-1047-2020
2020. 10. 08
IT Security Certification Center
Certification Report Page 2
History of Creation and Revision
No. Date
Revised
Pages
Description
00 2020.10.08 -
Certification report for Smart TV Security Solution
V5.0 for Samsung Knox
- First documentation
Certification Report Page 3
This document is the certification report for Smart TV Security Solution V5.0 for
Samsung Knox of SAMSUNG ELECTRONICS Co., Ltd.
The Certification Body
IT Security Certification Center
The Evaluation Facility
Korea Security Evaluation Laboratory (KSEL)
Certification Report Page 4
Table of Contents
1. Executive Summary.............................................................................................5
2. Identification.........................................................................................................8
3. Security Policy .....................................................................................................9
4. Assumptions and Clarification of Scope............................................................9
5. Architectural Information .................................................................................. 11
5.1 Physical Scope of TOE........................................................................... 11
5.2 Logical Scope of TOE.............................................................................13
6. Documentation...................................................................................................16
7. TOE Testing........................................................................................................16
8. Evaluated Configuration....................................................................................17
9. Results of the Evaluation ..................................................................................17
9.1 Security Target Evaluation (ASE)............................................................18
9.2 Life Cycle Support Evaluation (ALC) ......................................................19
9.3 Guidance Documents Evaluation (AGD).................................................19
9.4 Development Evaluation (ADV)..............................................................20
9.5 Test Evaluation (ATE).............................................................................20
9.6 Vulnerability Assessment (AVA)..............................................................20
9.7 Evaluation Result Summary ...................................................................21
10. Recommendations.............................................................................................22
11. Evaluation Evidence ..........................................................................................22
12. Acronyms and Glossary....................................................................................23
13. Bibliography.......................................................................................................25
Certification Report Page 5
1. Executive Summary
This report describes the result of the EAL1 evaluation of “Smart TV Security
Solution V5.0 for Samsung Knox” from SAMSUNG ELECTRONICS Co., Ltd. with
reference to the Common Criteria for Information Technology Security Evaluation
(“CC” hereinafter)[1]. It describes the evaluation result and its soundness and
conformity.
Samsung Knox is a brand name given to a secure platform and security solutions
that are equipped with the products released from Samsung Electronics.
The evaluation of the TOE has been carried out by Korea Security Evaluation
Laboratory (KSEL) and completed on October 6, 2020. This report grounds on the
evaluation technical report (“ETR” hereinafter)[3] and the Security Target (“ST”
hereinafter)[4]. All Security Assurance Requirements (SARs) in the ST are based
only upon assurance component in CC Part 3, and the TOE satisfies the SARs of
Evaluation Assurance Level EAL1. Therefore the ST and the resulting TOE is CC
Part 3 conformant. The Security Functional Requirements (SFRs) are based only
upon functional components in CC Part 2, and the TOE satisfies the SFRs in the
ST. Therefore the ST and the resulting TOE is CC Part 2 conformant.
The Target of Evaluation (“TOE” hereinafter) is a Smart TV Security Solution that
provides security functions in the form of library by being embedded on Samsung
Smart TV. The TOE provides functions for the secure operation of Samsung Smart
TV with system (kernel of Tizen OS) integrity verification, blocking the execution of
unauthorized Web App, and blocking access to phishing sites. In addition, the TOE
also provides encryption/decryption function for data used in Web App, and updating
the database for the list of phishing sites by communicating with Update Server. The
TOE is delivered to the developers of Samsung Smart TV in the form of a library
which is a kind of software, and is not in charge of all kinds of security functions
provided in Samsung Smart TV. The TOE provides only the security function defined
in the above.
Certification Report Page 6
The TOE is a library to provide the security for the firmware of Samsung Smart
TV, and performs the role of being in charge of security function of Samsung
Smart TV. The TOE allows a secure web surfing of a Samsung Smart TV user
who accesses a web site using Web Browser by providing Phishing Site Blocking
function. In addition, by blocking the execution of unauthorized Web App, the TOE
prevents the execution of an unauthorized Web App from accessing the resource
of Samsung Smart TV. Important data used in Web App are stored securely with
encryption. With System Integrity Monitoring function, the verification on the
integrity of the system (kernel of Tizen OS) is performed to guarantee secure
operation of Samsung Smart TV. The update manager communicates with the
update server to download the update file to the smart TV and performs integrity
(digital signature) verification for the update file. TOE performs the update for the
functions (integrity result report and phishing site DB list update) that are performed
by communicating with the update server using the update file. TOE performs the
update by installing an update file downloaded from Smart TV. The TOE
communicates with an external IT entity. Communication with external IT entity
can be done in the form of a wired communication using Ethernet and a wireless
communication using Wi-Fi. Google Safe Browsing server and Update server are
external IT entities which communicate with Phishing Site Blocking function. In a
certain area, since Samsung Smart TV and update server are not interoperated,
System Integrity Monitoring function does not report the result, and Phishing Site
Blocking function is not operated. The communication with external IT entities
uses a secure communication channel that supports confidentiality and integrity
via OpenSSL provided in the operational environment. The developer can
communicate with Samsung Smart TV using the serial port when developing
applications for Smart TV using TOE. Serial port communication is not provided
to Smart TV users who are not developers.
Certification Report Page 7
The TOE is a security solution that is in the form of library running in Samsung
Smart TV and has the hardware and the software requirements as in the following
[Table 1]. [Table 1] is classified as the TOE Operational Environment not included
in the TOE scope.
Category Contents
H/W
CPU ARM architecture (Cortex A53 Quad) or higher
DDR Memory 1.0GB or higher
Flash Memory eMMC 4GB or higher
Ethernet 1 x 10/100Mb RJ45
Wi-Fi 802.11 a/b/g/n
Serial Port RS-232C
S/W
Web Brower Tizen Browser 3.1.08180
SQLite V3.29.0
REE OS Tizen 5.5
TEE OS TrustWare V3.0.4
[Table 1] Hardware and software requirements for TOE
External IT entities needed for the TOE operation are as follows. The TOE uses TLS
V1.2 Protocol (OpenSSL) provided in the operational environment when
communicating with the external IT entity of below.
- Google Safe Browsing Server :
· A server provided by Google that informs whether a relevant URL is a
phishing site or not.
- Update Server :
· receives the result detected by the system integrity monitoring function of
Samsung smart TV and transmits the phishing site DB list to the smart TV.
· transmits an online update file to Smart TV for functions which report the
result and download the phishing site database
Certification Report Page 8
2. Identification
The TOE is identified as follows:
Scheme Korea Evaluation and Certification Guidelines for IT
Security (August 24, 2017)
Korea Evaluation and Certification Regulation for IT
Security (September 12, 2017)
TOE Smart TV Security Solution V5.0 for Samsung Knox
Developer SAMSUNG ELECTRONICS Co., Ltd.
TOE
reference
Smart TV Security Solution V5.0 for Samsung Knox
Version V5.0
TOE
Component
Samsung_Smart_TV_Security_Solution_SYSTEM_001_V5.0_Rele
ase_1-1-1.armv7l
Samsung_Smart_TV_Security_Solution_PLATFORM_001_V5.0_R
elease_1-1-1.armv7l
Samsung_Smart_TV_Security_Solution_PLATFORM_002_V5.0_R
elease_1-1-1.armv7l
Samsung_Smart_TV_Security_Solution_SERVICE_001_V5.0_Rele
ase_1-1-1.armv7l
Samsung_Smart_TV_Security_Solution_SERVICE_002_V5.0_Rele
ase_1-1-1.armv7l
Samsung_Smart_TV_Security_Solution_SERVICE_003_V5.0_Rele
ase_1-1-1.armv7l
Samsung_Smart_TV_Security_Solution_SERVICE_004_V5.0_Rele
ase_1-1-1.armv7l
Guide Smart TV Security Solution V5.0 for Samsung Knox Developer
Guide V1.1
[Table 2] TOE identification
Certification Report Page 9
Common Criteria Common Criteria for Information Technology
Security Evaluation, Version 3.1 Revision 5, CCMB-
2017-04-001 ~ CCMB-2017-04-003, April 2017
EAL EAL1
Protection Profile N/A (ST does not claim conformance to a PP)
Developer SAMSUNG ELECTRONICS Co., Ltd.
Sponsor SAMSUNG ELECTRONICS Co., Ltd.
Evaluation Facility Korea Security Evaluation Laboratory (KSEL)
Completion Date of
Evaluation
September 24, 2020
Certification Body IT Security Certification Center
[Table 3] Additional identification information
3. Security Policy
The TOE complies security policies defined in the ST by security objectives and security
requirements. The TOE provides security features to verify system integrity, to prevent
execution of unauthorized Web App, to encrypt and decrypt important data used in Web
App, to block access of phishing site, and updating the database for the list of phishing
sites by communicating with Update Server.
For more details refer to the ST.
4. Assumptions and Clarification of Scope
There are no any Assumptions in the Security Problem Definition in the ST.
The scope of this evaluation was limited to the functionality and assurance covered in
the Security Target. Other functionality included in Samsung Smart TV was not assessed
Certification Report Page 10
as part of this evaluation. All other functionality provided by Samsung Smart TV needs
to be assessed separately, and no further conclusions can be drawn about their
effectiveness. All evaluations (and all products) have limitations, as well as potential
misconceptions that need clarification. This text covers some of the more important
limitations and clarifications of this evaluation.
Note that:
 This evaluation covers only the specific software version identified in this
document, and not any earlier or later versions released or in process. .(for
the detailed information of TOE version and TOE Components version refer
to the [Table 2])
Certification Report Page 11
5. Architectural Information
The architecture of Samsung Smart TV is basically composed based on the ARM
TrustZone technology provided by ARM CPU. The execution environment of Samsung
Smart TV is classified as Trusted Execution Environment(TEE) and Rich OS Application
Environment. TEE functions based on TrustWare V3.0.4(Operating System developed
by Samsung Electronics) and Rich OS Application Environment functions in Tizen 5.5
Operating System. Among the security functions of the TOE, System Integrity Monitoring
function is executed in TEE and REE, Data Encryption/Decryption function is executed
in REE or TEE according to the developer selection, whereas Web App Protection
function and Phishing Site Blocking function are executed in REE.
5.1 Physical Scope of TOE
The TOE consists of software provided in the form of a library, and developer guidance.
The TOE is distributed to the developers of Samsung Smart TV, and is operated in the
form of a library for its operation after installation. The scope of the TOE includes only
some of the library that is in charge of security function out of all the elements that
compose the whole Samsung Smart TV. That is, the physical scope of TOE includes the
library and the developer guidance of the API provided by the library.
TOE Components
Delivery
Form
Note
Samsung_Smart_TV_Security_Solution_SYST
EM_001_V5.0_Release_1-1-1.armv7l
(Samsung_Smart_TV_Security_Solution_SYS
TEM_001_V5.0_Release_1-1-1.armv7l.rpm)
Software
(CD)
System Integrity Monitoring
Certification Report Page 12
Samsung_Smart_TV_Security_Solution_PLAT
FORM_001_V5.0_Release_1-1-1.armv7l
(Samsung_Smart_TV_Security_Solution_PLA
TFORM_001_V5.0_Release_1-1-
1.armv7l.rpm)
Data Encryption/Decryption
Samsung_Smart_TV_Security_Solution_PLAT
FORM_002_V5.0_Release_1-1-1.armv7l
(Samsung_Smart_TV_Security_Solution_PLA
TFORM_002_V5.0_Release_1-1-
1.armv7l.rpm)
Web App Protection
Samsung_Smart_TV_Security_Solution_SER
VICE_001_V5.0_Release_1-1-1.armv7l
(Samsung_Smart_TV_Security_Solution_SER
VICE_001_V5.0_Release_1-1-1.armv7l.rpm)
Phishing Site Blocking
Samsung_Smart_TV_Security_Solution_SER
VICE_002_V5.0_Release_1-1-1.armv7l
(Samsung_Smart_TV_Security_Solution_SER
VICE_002_V5.0_Release_1-1-1.armv7l.rpm)
Samsung_Smart_TV_Security_Solution_SER
VICE_003_V5.0_Release_1-1-1.armv7l
(Samsung_Smart_TV_Security_Solution_SER
VICE_003_V5.0_Release_1-1-1.armv7l.rpm)
Samsung_Smart_TV_Security_Solution_SER
VICE_004_V5.0_Release_1-1-1.armv7l
System Integrity Monitoring
Phishing Site Blocking
Certification Report Page 13
(Samsung_Smart_TV_Security_Solution_SER
VICE_004_V5.0_Release_1-1-1.armv7l.rpm)
Smart TV Security Solution V5.0 for Samsung
Knox Developer Guide V1.1
(Smart TV Security Solution V5.0 for Samsung
Knox Developer Guide V1.1.pdf)
Document
File
(CD)
5.2 Logical Scope of TOE
Logical scope of the TOE includes all the aspects that are included in the physical scope
of TOE. That is, all the functions provided by the library are included in the logical scope
of TOE. The following security functions are provided by the TOE
System Integrity Monitoring
The TOE periodically performs the verification on the kernel integrity of Tizen OS while
in normal operation through System Integrity Monitoring function so as to ensure safe
operation of Samsung Smart TV.
System Integrity Monitoring function can be separated into three parts: the part that starts
System Integrity Monitoring function on the application area of Tizen OS; the part that
does system integrity monitoring on the dynamic kernel memory area, while operating
on the kernel module area of Tizen OS, when TOE gets operated; the part that does the
system integrity monitoring on the static area while operating on the application area of
TrustWare.
The System Integrity Monitoring function that operates on application of Tizen OS starts
the monitoring process after being installed in the application area of Tizen OS, and
Certification Report Page 14
inserts the part that performs system integrity monitoring on the dynamic kernel memory
area into kernel as a LKM(Loadable Kernel Module) so that the monitoring function can
get operated on the kernel area of Tizen OS.
As mentioned earlier, the System Integrity Monitoring function that operates on the kernel
module area of Tizen OS performs a part of functions of TOE. Thus, this operates while
being inserted as a LKM(Loadable Kernel Module) by the System Integrity Monitoring
function that operates on the application of Tizen OS. When monitoring function starts,
this performs system integrity monitoring for dynamic kernel memory area.
The System Integrity Monitoring function that operates in the application area of
TrustWare detects whether there is any distortion or not by periodically comparing the
memory value of the static kernel memory and the original value. This also receives the
detected result from the System Integrity Monitoring function that operates on the kernel
module area of Tizen OS, and saves the result along with the result detected in static
kernel memory.
Web App Protection
The TOE provides Web App Protection function in order to prevent execution of an
unauthorized Web App in Samsung Smart TV. Samsung Smart TV can download and
store only the Web App provided in App Store (hereinafter “App Contents Server”)
provided by Samsung Electronics. When registering Web App in App Contents server,
Samsung Electronics registered after encrypting the Web App, and Samsung Smart TV
User can download the Web App from App Contents Server and store it on Samsung
Smart TV. In order to execute the stored Web App, the decryption process is required.
During the decryption process of the Web App, if the Web App is determined to be
modified, the execution of the relevant Web App will be blocked. The TOE uses AES
Certification Report Page 15
Algorithm (CTR mode) for decryption of Web App, and the 128-bit sizes of the
cryptographic key.
Data Encryption/Decryption
The TOE provides encryption/decryption function for important data used in Web App.
The TOE uses AES algorithm (CBC mode) for encryption, and the 256-bit sizes of the
cryptographic key. Data encryption and decryption can be performed in REE or TEE
according to the developer selection. The cryptographic key is derived using PBKDF2
algorithm. The Cryptographic key exists on memory after being generated, and is
destroyed after encryption/decryption operation is completed. The zeroization is used as
the cryptographic key destruction method.
Phishing Site Blocking
The TOE provides Phishing Site Blocking function in order to prevent private information
from being exposed to any risks through the access to a harmful phishing site by
Samsung Smart TV User. If Samsung Smart TV User accesses web sites using Web
Browser(Tizen Browser), Phishing Site Blocking function checks the site based on the
phishing site database stored in Smart TV. If the site is suspected for being a phishing
site, Google Safe Browsing service is used to check whether the relevant site is a
phishing site or not. If the relevant site is confirmed to be a phishing site, the information
of such for the site being a phishing site is informed to the user. If the user selects to
block the access to the site, the access to the phishing site is blocked to protect private
information of the user. The TOE also provides Smart TV user the ability to either disable
or enable the Phishing Site Blocking function. If a user disables to use the Phishing Site
Blocking function, the Phishing Site Blocking function is not performed.
Certification Report Page 16
The list of Phishing Site on the database is updated periodically through Update Server.
When communicating with the TOE and Google Safe Browsing server, the transmitted
data is protected by using TLS protocol provided by the operational environment.
6. Documentation
The following documentation is evaluated and provided with the TOE by the developer
to the customer.
[Table 4] Documentation
7. TOE Testing
The evaluator conducted independent testing listed in ETR, based upon test cases
devised by the evaluator. The evaluator set up the test configuration and testing
environment consistent with the ST. The evaluator considered followings when
devising a test subset:
 TOE security functionality: The TOE is a Smart TV Security Solution that
provides security functions in the form of library by being embedded on TV.
The TOE provides functions for the secure operation of Samsung Smart TV
with system(kernel of Tizen OS) integrity verification, blocking the execution
of unauthorized Web App, and blocking access to phishing sites. In addition,
the TOE also provides encryption/decryption function for data used in Web
App, and Update Server communication for updating the database for the list
of phishing sites by communicating with Update Server.
 Balance between evaluator's activities: The targeted evaluation assurance
level is EAL1, and the evaluator tried to balance time and effort of
evaluator's activities between EAL1 assurance components.
Identifier Version
Smart TV Security Solution V5.0 for Samsung Knox Developer Guide V1.1
Certification Report Page 17
In addition, the evaluator conducted penetration testing based upon test cases
devised by the evaluator resulting from the independent search for potential
vulnerabilities. These tests cover privilege check of executable code, bypassing
security functionality, invalid inputs for interfaces, flaws in networking protocol
implementation, vulnerability scanning using commercial tools, disclosure of
secrets, and so on. No exploitable vulnerabilities by attackers possessing basic
attack potential were found from penetration testing.
The evaluator confirmed that all the actual testing results correspond to the expected
testing results. The evaluator testing effort, the testing approach, configuration,
depth, and results are summarized in the ETR.
8. Evaluated Configuration
The TOE is a Smart TV Security Solution that provides security functions in the form
of library by being embedded on Samsung Smart TV. The TOE provides functions
for the secure operation of Samsung Smart TV with system (kernel of Tizen OS)
integrity verification, blocking the execution of unauthorized Web App, and blocking
access to phishing sites. In addition, the TOE also provides encryption/decryption
function for data used in Web App, and Update Server communication for updating
the database for the list of phishing sites by communicating with Update Server.
The TOE is identified by TOE name and version number. The TOE identification
information is provided CLI.
And the guidance documents listed in this report chapter 6, [Table 4] were evaluated
with the TOE.
9. Results of the Evaluation
The evaluation facility provided the evaluation result in the ETR which references
Single Evaluation Reports for each assurance requirement and Observation
Certification Report Page 18
Reports. The evaluation result was based on the CC and CEM [2].
As a result of the evaluation, the verdict PASS is assigned to all assurance
components of EAL1.
9.1 Security Target Evaluation (ASE)
The ST Introduction correctly identifies the ST and the TOE, and describes the TOE
in a narrative way at three levels of abstraction (TOE reference, TOE overview and
TOE description), and these three descriptions are consistent with each other.
Therefore the verdict PASS is assigned to ASE_INT.1.
The Conformance Claim properly describes how the ST and the TOE conform to
the CC and how the ST conforms to PPs and packages. Therefore the verdict
PASS is assigned to ASE_CCL.1.
The Security Objectives clearly define operational environment. Therefore the
verdict PASS is assigned to ASE_OBJ.1.
The ST doesn't define any extended component. Therefore the verdict PASS is
assigned to ASE_ECD.1.
The Security Requirements is defined clearly and unambiguously, and it is
internally consistent. Therefore the verdict PASS is assigned to ASE_REQ.1.
The TOE Summary Specification addresses all SFRs, and it is consistent with
other narrative descriptions of the TOE. Therefore the verdict PASS is assigned
to ASE_TSS.1.
Thus, the ST is sound and internally consistent, and suitable to be use as the basis
for the TOE evaluation.
The verdict PASS is assigned to the assurance class ASE.
Certification Report Page 19
9.2 Life Cycle Support Evaluation (ALC)
The developer clearly identifies the TOE. Therefore the verdict PASS is assigned
to ALC_CMC.1.
The configuration management document verifies that the configuration list
includes the TOE, and the evaluation evidence. Therefore, the verdict of
ALC_CMS.1 is the Pass.
The verdict PASS is assigned to the assurance class ALC.
9.3 Guidance Documents Evaluation (AGD)
The procedures and steps for the secure preparation of the TOE have been
documented and result in a secure configuration. Therefore the verdict PASS is
assigned to AGD_PRE.1.
The operational user guidance describes for each user role the security functionality
and interfaces provided by the TSF, provides instructions and guidelines for the
secure use of the TOE, addresses secure procedures for all modes of operation,
facilitates prevention and detection of insecure TOE states, or it is misleading or
unreasonable. Therefore the verdict PASS is assigned to AGD_OPE.1.
Thus, the guidance documents are adequately describing the user can handle the
TOE in a secure manner. The guidance documents take into account the various
types of users (e.g. those who accept, install, administrate or operate the TOE)
whose incorrect actions could adversely affect the security of the TOE or of their
own data.
The verdict PASS is assigned to the assurance class AGD.
Certification Report Page 20
9.4 Development Evaluation (ADV)
The functional specification provides high-level description of SFR-enforcing and
SFR-supporting TSFIs, in terms of descriptions of their parameters. Therefore, the
verdict of ADV_FSP.1 is the Pass.
Therefore, the functional specification(TSF interface description) which are
included in the development documentation, are adequate to give understanding
about how the TSF satisfies the SFRs, and how these SFRs implementation are
not damaged or bypassed.
The verdict PASS is assigned to the assurance class ADV.
9.5 Test Evaluation (ATE)
By independently testing a subset of the TSFI, the evaluator confirmed that the TOE
behaves as specified in the functional specification and guidance documentation.
Therefore the verdict PASS is assigned to ATE_IND.1.
Thus, the TOE behaves as described in the ST and as specified in the evaluation
evidence (described in the ADV class).
The verdict PASS is assigned to the assurance class ATE.
9.6 Vulnerability Assessment (AVA)
By penetrating testing, the evaluator confirmed that there are no easily identifiable
exploitable vulnerabilities in the operational environment of the TOE. Therefore the
verdict PASS is assigned to AVA_VAN.1.
Thus, potential vulnerabilities identified, during the evaluation of the development
and anticipated operation of the TOE or by other methods (e.g. by flaw hypotheses),
don’t allow attackers possessing less than an enhanced-basic attack potential to
violate the SFRs. The verdict PASS is assigned to the assurance class AVA.
Certification Report Page 21
9.7 Evaluation Result Summary
Assurance
Class
Assurance
Component
Evaluator Action
Elements
Verdict
Evaluator
Action
Elements
Assurance
Component
Assurance
Class
ASE ASE_INT.1 ASE_INT.1.1E PASS
PASS
PASS
ASE_INT.1.2E PASS
ASE_CCL.1 ASE_CCL.1.1E PASS PASS
ASE_OBJ.1 ASE_OBJ.1.1E PASS PASS
ASE_ECD.1 ASE_ECD.1.1E PASS
PASS
ASE_ECD.1.2E PASS
ASE_REQ.1 ASE_REQ.1.1E PASS PASS
ASE_TSS.1 ASE_TSS.1.1E PASS
PASS
ASE_TSS.1.2E PASS
ALC ALC_CMS.1 ALC_CMS.1.1E PASS PASS
PASS
ALC_CMC.1 ALC_CMC.1.1E PASS PASS
AGD AGD_PRE.1 AGD_PRE.1.1E PASS
PASS
PASS
AGD_PRE.1.2E PASS
AGD_OPE.1 AGD_OPE.1.1E PASS PASS
ADV ADV_FSP.1 ADV_FSP.1.1E PASS
PASS PASS
ADV_FSP.1.2E PASS
ATE ATE_IND.1 ATE_IND.1.1E PASS
PASS PASS
ATE_IND.1.2E PASS
AVA AVA_VAN.1 AVA_VAN.1.1E PASS
PASS PASS
AVA_VAN.1.2E PASS
AVA_VAN.1.3E PASS
[Table 5] Evaluation Result Summary
Certification Report Page 22
10. Recommendations
The TOE security functionality can be ensured only in the evaluated TOE
operational environment with the evaluated TOE configuration, thus the TOE shall
be operated by complying with the followings:
 Developer must use a data encryption and decryption functions provided by
the TOE to protect the sensitive user data when developing Web App.
 Developer must enable default settings of the Phishing Site Blocking
functions for Smart TV user to use a Smart TV securely.
 Developer must insert warning label informing access to phishing site for
Smart TV user to select access phishing site or not.
 Smart TV User shall install firmware update immediately when an alert
occurs so that the security functions can be maintained in a most up-to-date
version.
 Smart TV shall provide secure communication channel when
communicating with the TOE and Google Safe Browsing server.
11. Evaluation Evidence
Identifier Issue date
Smart TV Security Solution V5.0 for Samsung Knox Security Target
V1.1
2020.08.06
Smart TV Security Solution V5.0 for Samsung Knox Functional
Specification V1.0
2020.06.17
Smart TV Security Solution V5.0 for Samsung Knox Developer Guide
V1.1
2020.09.15
Smart TV Security Solution V5.0 for Samsung Knox CM
Documentation V1.1
2020.09.15
[Table 6] Evaluation Evidence
Certification Report Page 23
12. Acronyms and Glossary
CC Common Criteria
CLI Command Line Interface
EAL Evaluation Assurance Level
ETR Evaluation Technical Report
Google Safe Browsing Google Safe Browsing is a service provided by Google
offering URL list that contains phishing contents and open
API that can use the list.
OR Observation Report
REE(Rich Execution
Environment)
This is a concept that is contradictory to TEE, and refers to
execution environment provided by general operating
environment such as Tizen, Android.
SAR Security Assurance Requirement
SFR Security Functional Requirement
Samsung Knox Brand name given to a secure platform and security
solutions that are equipped with the products released
from Samsung Electronics.
Smart TV User Users installing and executing Web App in order to use
various smart functions embedded on TV and using
management function supported in TV.
ST Security Target
TEE(Trusted Execution
Environment)
This refers to execution environment providing the
security of a quality higher than the execution
environment provided in general operating environment.
Certification Report Page 24
This defined the function of security hardware and
software providing execution environment based on safe
reliability of security related applications in devices such
as smartphone, smart TV. Global Platform, which is a
standard group, establishes the standard in the
architecture of TEE and related API.
Tizen OS Tizen is based on the Linux kernel of Linux foundation, and
is made based on HTML5 and C++. It is an open source
operating system having the purpose of being included in
mobile devices including smart phone, and electronic
devices such as TV.
TOE Target of Evaluation
TrustWare This is an operating environment installed for the
application of TEE(ARM TrustZone) technology, and
TrustWare is the operating system self-developed by
Samsung Electronics even from the kernel stage.
TSF TOE Security Functionality
Update Server Server that performs the update on the database for the
list of phishing site used in Phishing Site Blocking
function
Web App Application for Tizen OS based on HTML5 which can be
used by being downloaded on TV
Certification Report Page 25
13. Bibliography
The evaluation facility has used following documents to produce this report.
[1] Common Criteria for Information Technology Security Evaluation, Version 3.1
Revision 5, CCMB-2017-04-001 ~ CCMB-2017-04-003, April 2017
[2] Common Methodology for Information Technology Security Evaluation, Version
3.1 Revision 5, CCMB-2017-04-004, April 2017
[3] Smart TV Security Solution V5.0 for Samsung Knox, Evaluation Technical Report
V2.00, October 6, 2020
[4] Smart TV Security Solution V5.0 for Samsung Knox Security Target V1.1, August 6,
2020