National Information Assurance Partnership
Common Criteria Evaluation and Validation Scheme
Validation Report
for
DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives
Report Number: CCEVS-VR-VID11703-2026
Dated: Aug 5, 2026
Version: 1.0
National Institute of Standards and Technology
Information Technology Laboratory
100 Bureau Drive
Gaithersburg, MD 20899
National Security Agency
Information Assurance Directorate
9800 Savage Road STE 6982
Fort George G. Meade, MD 20755-6982
®
TM
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Acknowledgements
Validation Team
Farid Ahmed
Anne Gugel
Alex Lee
Robert Wojcik
Common Criteria Testing Laboratory
Pascal Patin
Josh Marciante
Leidos Inc.
Columbia, MD
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Contents
1 Executive Summary ................................................................................................................. 1
2 Identification............................................................................................................................ 3
3 TOE Architecture...................................................................................................................... 5
4 Security Policy.......................................................................................................................... 8
4.1 Cryptographic Support.................................................................................................... 8
4.2 User Data Protection....................................................................................................... 8
4.3 Security Management..................................................................................................... 8
4.4 Protection of the TSF....................................................................................................... 8
5 Assumptions and Clarification of Scope .................................................................................. 9
5.1 Assumptions.................................................................................................................... 9
5.2 Clarification of Scope .................................................................................................... 10
6 Documentation...................................................................................................................... 11
7 IT Product Testing .................................................................................................................. 12
8 TOE Evaluated Configuration................................................................................................. 14
9 Results of the Evaluation ....................................................................................................... 16
9.1 Evaluation of the Security Target (ST) (ASE).................................................................. 16
9.2 Evaluation of the Development (ADV).......................................................................... 16
9.3 Evaluation of the Guidance Documents (AGD)............................................................. 16
9.4 Evaluation of the Life Cycle Support Activities (ALC) .................................................... 16
9.5 Evaluation of the Test Documentation and the Test Activity (ATE)............................... 17
9.6 Vulnerability Assessment Activity (AVA)....................................................................... 17
9.7 Summary of Evaluation Results..................................................................................... 17
10 Validator Comments/Recommendations .............................................................................. 18
11 Security Target ....................................................................................................................... 19
12 Abbreviations and Acronyms................................................................................................. 20
13 Bibliography........................................................................................................................... 21
List of Tables
Table 1: Evaluation Identifiers 3
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1 Executive Summary
This Validation Report (VR) documents the National Information Assurance Partnership (NIAP)
assessment of the evaluation of DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives (the
Target of Evaluation, or TOE). It presents the evaluation results, their justifications, and the
conformance results. This VR is not an endorsement of the TOE by any agency of the U.S.
Government and no warranty of the TOE is either expressed or implied.
This VR is intended to assist the end-user of this product and any security certification agent for
that end-user in determining the suitability of this Information Technology (IT) product in their
environment. End-users should review the Security Target (ST), which is where specific security
claims are made, in conjunction with this VR, which describes how those security claims were
evaluated and tested and any restrictions on the evaluated configuration. This VR applies only to
the specific version and configuration of the product as evaluated and as documented in the ST.
Prospective users should carefully read the Assumptions and Clarification of Scope in Section 5
and the Validator Comments in Section 10, where any restrictions on the evaluated configuration
are highlighted.
The evaluation was performed by Leidos Common Criteria Testing Laboratory (CCTL) in Columbia,
Maryland, USA, and was completed in July 2026. The information in this report is largely derived
from the Evaluation Technical Report (ETR) and associated test report written by Leidos. The
evaluation determined that the TOE is Common Criteria Part 2 Extended and Common Criteria
Part 3 Conformant and meets the assurance requirements of the following document:
• collaborative Protection Profile for Full Drive Encryption – Encryption Engine, Version
2.0+Errata 20190201, 1 February 2019 ([5]).
The TOE is DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drives.
The TOE identified in this VR has been evaluated at a NIAP approved CCTL using the Common
Methodology for IT Security Evaluation (Version 3.1, Rev. 5) for conformance to the Common
Criteria for IT Security Evaluation (Version 3.1, Rev. 5). The evaluation has been conducted in
accordance with the provisions of the NIAP Common Criteria Evaluation and Validation Scheme
(CCEVS) and the conclusions of the testing laboratory in the ETR are consistent with the evidence
provided.
The validation team monitored the activities of the evaluation team, provided guidance on
technical issues and evaluation processes, and reviewed the individual work units documented in
the ETR and the Assurance Activities Report (AAR). The validation team found the evaluation
demonstrated the product satisfies all of the Security Functional Requirements (SFRs) and
Security Assurance Requirements (SARs) specified in the ST. The conclusions of the testing
laboratory in the ETR are consistent with the evidence produced. Therefore, the validation team
concludes that the testing laboratory's findings are accurate, the conclusions justified, and the
conformance results are correct.
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The Leidos evaluation team determined that the TOE is conformant to the claimed Protection
Profile, and when installed, configured, and operated as described in the evaluated guidance
documentation, satisfies all the SFRs specified in the ST ([6]).
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2 Identification
The CCEVS is a joint National Security Agency (NSA) and National Institute of Standards and
Technology (NIST) effort to establish commercial facilities to perform trusted product evaluations.
Under this program, commercial testing laboratories called Common Criteria Testing Laboratories
(CCTLs) use the Common Criteria (CC) and Common Methodology for IT Security Evaluation (CEM)
to conduct security evaluations, in accordance with National Voluntary Laboratory Assessment
Program (NVLAP) accreditation.
The NIAP Validation Body assigns Validators to monitor the CCTLs to ensure quality and
consistency across evaluations. Developers of IT products desiring a security evaluation contract
with a CCTL and pay a fee for their product’s evaluation. Upon successful completion of the
evaluation, the product is added to NIAP’s Product Compliant List (PCL).
Table 1 provides information needed to completely identify the product, including:
• The TOE—the fully qualified identifier of the product as evaluated
• The ST—the unique identification of the document describing the security features,
claims, and assurances of the product
• The conformance result of the evaluation
• The PP/PP-Modules to which the product is conformant
• The organizations and individuals participating in the evaluation.
Table 1: Evaluation Identifiers
Item Identifier
Evaluation Scheme United States NIAP Common Criteria Evaluation and Validation
Scheme
TOE DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives
Security Target DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives Security
Target
Sponsor DigiStor
1000 SE Tech Center Dr Suite 160
Vancouver, WA 98683
Developer Phison Electronics Corporation
No.1, Qun-Yi Road, Jhunan, Miaoli County,
Taiwan 350, R.O.C.
Completion Date July 2026
CC Version Common Criteria for Information Technology Security Evaluation,
Version 3.1, Release 5, April 2017
CEM Version Common Methodology for Information Technology Security
Evaluation: Version 3.1, Release 5, April 2017
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Item Identifier
PP collaborative Protection Profile for Full Drive Encryption –
Encryption Engine, Version 2.0+Errata 20190201, 1 February 2019
Conformance Result PP Compliant, CC Part 2 extended, CC Part 3 conformant
CCTL Leidos
Common Criteria Testing Laboratory
6841 Benjamin Franklin Drive
Columbia, MD 21046
Evaluation Personnel Pascal Patin, Josh Marciante
Validation Personnel Farid Ahmed
Anne Gugel
Alex Lee
Robert Wojcik
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3 TOE Architecture
Note: The following architectural description is based on the description presented in the ST.
The specific TOE products and models listed below include the DigiStor Enterprise PCIe Gen 5 SSD Self
Encrypting Drives running the Phison PS5302-X2 hardware controller on the device models below:
DigiStor Product Name Controller Firmware Form Factor Capacity DigiStor HW Part Number
DigiStor
U.2 Enterprise PCIe Gen
5
PS5302-X2 X2PM40S0
U.2
2TB DIG-P5U20G17-1T6 LG
DIG-P5U20G47-1T6 LG
DIG-P5U20G09-1T9 LG
DIG-P5U20G46-1T9 LG
4TB DIG-P5U20G17-3T2 LG
DIG-P5U20G47-3T2 LG
DIG-P5U20G09-3T8 LG
DIG-P5U20G46-3T8 LG
8TB DIG-P5U20G17-6T4 LG
DIG-P5U20G47-6T4 LG
DIG-P5U20G09-7T6 LG
DIG-P5U20G46-7T6 LG
16TB DIG-P5U20G17-12T LG
DIG-P5U20G47-12T LG
DIG-P5U20G09-15T LG
DIG-P5U20G46-15T LG
32TB DIG-P5U20G17-25T LG
DIG-P5U20G47-25T LG
DIG-P5U20G09-30T LG
DIG-P5U20G46-30T LG
DigiStor
E3.S Enterprise PCIe
Gen 5
E3.S
2TB DIG-P5E3SG17-1T6 LG
DIG-P5E3SG47-1T6 LG
DIG-P5E3SG09-1T9 LG
DIG-P5E3SG46-1T9 LG
4TB DIG-P5E3SG17-3T2 LG
DIG-P5E3SG47-3T2 LG
DIG-P5E3SG09-3T8 LG
DIG-P5E3SG46-3T8 LG
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DigiStor Product Name Controller Firmware Form Factor Capacity DigiStor HW Part Number
8TB DIG-P5E3SG17-6T4 LG
DIG-P5E3SG47-6T4 LG
DIG-P5E3SG09-7T6 LG
DIG-P5E3SG46-7T6 LG
16TB DIG-P5E3SG17-12T LG
DIG-P5E3SG47-12T LG
DIG-P5E3SG09-15T LG
DIG-P5E3SG46-15T LG
DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives communicate with a host system using the
standard protocol defined by the TCG, an organization sponsored and operated by companies in the
computer, storage and digital communications industry. The Storage Work Group of the Trusted
Computing Group (TCG) defines Opal storage Security Subsystem Classes (SSC).
The Opal SSC supports NVMe (PCIe). While the physical form factor and firmware of the drives differ, all
models included in the TOE support the requirements defined in [CPPFDE_EE].
DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives are passive devices that respond to commands
but do not initiate actions. A SED does not support remote or out-of-band management (although a host
platform may have such capabilities that invoke SED commands).
Each SED encrypts stored data in the out-of-the-box (default) configuration. Access to data is not restricted
until a user takes ownership via a TCG controller. After a user takes ownership, an authentication key is
needed to unlock the drive.
When shipped from the factory, the drive is configured with a single data range called Range 0 (also known
as the Global Range) which comprises LBA 0 through LBA max. The host may allocate LockingRange 1 by
specifying a start LBA and an LBA range. DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives (TOE)
use logical block addressing (LBA) to support the user-addressable non-volatile memory space from LBA0
to LBAMax. The TOE accepts NVMe commands to read or write user data in this memory space. All user
data in the user-addressable non-volatile memory space is encrypted.
The TOE supports a non-volatile memory space that is only available to the TOE. It is referred to as the
system area. The system area is used to store keys, key material and CSPs. There is no logical or physical
access to the system area from outside of the TOE. The TOE accepts TCG commands to indirectly access or
modify values in the system area.
The TOE also supports a non-volatile memory space known as the TCG Data Store Tables. This area is not
available to the user but is accessible by an administrator through access-controlled TCG commands. TCG
Data Store tables are available unencrypted in the system area. Administrators can store data in these
tables through access-controlled TCG commands. A SED places no restriction on what data is stored.
Guidance documentation instructs administrators not to store protected data in the tables.
DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives SEDs support subdividing user storage. The
storage ranges are called locking ranges. Each locking range is secured with its own authentication key and
Data Encryption Key (DEK). DigiStor proprietary Key Management Description Document Section 3
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provides more details on the keys that make up the key hierarchy and describes the connection between
pairs of keys.
DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives Key Management Description Document
illustrates the key chain from Authentication key to the DEK. Each locking range has its own key chain. A
chain contains five keys: Drive Lock PIN (a.k.a. TCG PIN and Authentication key), Transfer Key(TEK), Key
Encryption Key (KEK) and DEK. The TEK is wrapped and unwrapped with the Authentication key using AES-
KW. The KEK is wrapped and unwrapped with TEK using AES-KW. The DEK is wrapped and unwrapped with
the KEK using AES-KW.
The SEDs use PINs, passwords, and authentication keys as BEVs. This ST and DigiStor use these terms
interchangeably. The SED receives an authentication PIN from the host Authorization Acquisition (AA)
component, which could be whatever form or content the AA allows. DigiStor SEDs support authentication
PINs with length of 32 bytes. Multiple PINs are required to control different functionality/resources within
the SED. All DigiStor SEDs are shipped with a default set of PIN values that allow for open-access of the
SED until new PINs and locking settings are established.
For TCG Opal, there are five authentication PINs needed in order to gain access to all of the drive’s
operational resources. These are 32-byte passwords, which are identified by the credential names: User's
Security Identifier (SID); Physical SID (public drive-unique value (PSID); Admin SP Admin; Locking SP
Admins; and Users.
The drive has two security providers (SPs) called the "Admin SP" and the "Locking SP." These act as
gatekeepers to the drive security services. Security-related commands will not be accepted unless they
also supply the correct credentials to prove the requester is authorized to perform the command.
The following PINs are BEVs and provide access to encrypted user data: Locking SP Admin 1-4 Passwords;
and User 1-267 Passwords. The following PINs are management passwords, which provide access to SED
management functions: SID; Physical Security ID (PSID); and Admin SP Admin Passwords. Further details
regarding these PINs are provided in Table 9: Try Limits Summary Details.
PIN values are never stored directly on the SED. Instead, an entered PIN value is verified via KW function
defined per SP800-38F. If this process is successful then the entered PIN value is valid.
Names of PINs are tied to Opal SSC. This applies to all user PINs (admins and users (Opal)). PSIDs (Physical
Security IDs) and SIDs (User's Security Identifier) are never going to be a BEV. The PSID corresponds to the
known unique value printed on the device.
Encrypting drives use one in-line encryption engine for each port, employing AES XTS-AES-256 mode to
encrypt all data prior to being written on the media and to decrypt all data as it is read from the media.
The encryption engines are always in operation and cannot be disabled.
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4 Security Policy
The TOE enforces the following security policies as described in the ST.
Note: Much of the description of the security policy has been derived from the ST and the Final
ETR.
4.1 Cryptographic Support
The TOE implements NIST-validated cryptographic algorithms supporting cryptographic functions. The
TOE provides Key Wrapping, Key Derivation, and Border Encryption Value (BEV) Validation.
4.2 User Data Protection
The TOE performs Full Drive Encryption such that the drive contains no plaintext user data. The TOE
performs user data encryption by default in the out-of-the-box configuration using AES in XTS mode with
256-bit encryption keys.
4.3 Security Management
The TOE supports management functions for changing and erasing the DEK, initiating TOE firmware
updates, and configuring a password for firmware updates.
4.4 Protection of the TSF
The TOE: provides trusted firmware update and update access control functions; protects Key and Key
Material; and supports power saving states. The TOE runs a suite of self-tests during initial start-up (on
power on).
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5 Assumptions and Clarification of Scope
5.1 Assumptions
The ST references collaborative Protection Profile for Full Drive Encryption – Encryption Engine for
the assumptions about the use of the TOE. Those assumptions, drawn from the claimed PP, are
as follows1:
• Communication among and between product components (e.g., AA and EE) is sufficiently
protected to prevent information disclosure. In cases in which a single product fulfils both
cPPs, then the communication between the components does not extend beyond the
boundary of the TOE (e.g., communication path is within the TOE boundary). In cases in
which independent products satisfy the requirements of the AA and EE, the physically
close proximity of the two products during their operation means that the threat agent
has very little opportunity to interpose itself in the channel between the two without the
user noticing and taking appropriate actions.
• Users enable Full Drive Encryption on a newly provisioned storage device free of protected
data in areas not targeted for encryption. It is also assumed that data intended for
protection should not be on the targeted storage media until after provisioning. The cPP
does not intend to include requirements to find all the areas on storage devices that
potentially contain protected data. In some cases, it may not be possible – for example,
data contained in “bad” sectors. While inadvertent exposure to data contained in bad
sectors or unpartitioned space is unlikely, one may use forensics tools to recover data from
such areas of the storage device. Consequently, the cPP assumes bad sectors, un-
partitioned space, and areas that must contain unencrypted code (e.g., MBR and AA/EE
pre-authentication software) contain no protected data.
• Users follow the provided guidance for securing the TOE and authorization factors. This
includes conformance with authorization factor strength, using external token
authentication factors for no other purpose and ensuring external token authorization
factors are securely stored separately from the storage device and/or platform. The user
should also be trained on how to power off their system.
• The platform in which the storage device resides (or an external storage device is
connected) is free of malware that could interfere with the correct operation of the
product.
• The user does not leave the platform and/or storage device unattended until the device is
in a Compliant power saving state or has fully powered off. Authorized users do not leave
the platform and/or storage device in a mode where sensitive information persists in non-
volatile storage (e.g., lock screen or sleep state). Users power the platform and/or storage
device down or place it into a power managed state, such as a “hibernation mode”.
1
The TOE implements all cryptographic functionality and does not rely on any cryptographic functions in its
Operational Environment. As such, assumption A.STRONG_CRYPTO is not relevant to the TOE.
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• The platform is assumed to be physically protected in its Operational Environment and not
subject to physical attacks that compromise the security and/or interfere with the
platform’s correct operation.
5.2 Clarification of Scope
All evaluations (and all products) have limitations, as well as potential misconceptions that need
clarifying. This text covers some of the more important limitations and clarifications of this
evaluation. Note that:
• As with any evaluation, this evaluation shows only that the evaluated configuration meets
the security claims made, with a certain level of assurance, achieved through performance
by the evaluation team of the evaluation activities specified in the following document:
collaborative Protection Profile for Full Drive Encryption – Encryption Engine, Version
2.0+Errata 20190201, 1 February 2019 ([5])
• This evaluation covers only the specific product models and versions identified in this
document, and not any earlier or later versions released or in process.
• The evaluation of security functionality of the product was limited to the functionality
specified in DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives Security Target,
Version 0.8, 18 June 2026 ([6]). Any additional security-related functional capabilities
included in the product were not covered by this evaluation.
• This evaluation did not specifically search for, nor attempt to exploit, vulnerabilities that
were not “obvious” or vulnerabilities to objectives not claimed in the ST. The CEM defines
an “obvious” vulnerability as one that is easily exploited with a minimum of understanding
of the TOE, technical sophistication and resources.
• The TOE must be installed, configured and managed as described in the documentation
referenced in Section 6 of this VR.
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6 Documentation
The vendor offers guidance documents describing the installation process for the TOE as well as guidance
for subsequent administration and use of the applicable security features. The guidance documentation
examined during the evaluation and delivered with the TOE is as follows:
• DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drive Common Criteria Configuration
Guide, Version 1.0, 18 June 2026
To use the product in the evaluated configuration, the product must be configured as specified in
this documentation.
Any additional customer documentation provided with the product, or that which may be available online,
was not included in the scope of the evaluation and therefore should not be relied upon to configure or
operate the TOE as evaluated. Consumers are encouraged to download the evaluated administrative
guidance documentation from the NIAP website.
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7 IT Product Testing
This section describes the testing efforts of the evaluation team. It is derived from information
contained in the following proprietary document:
• Digistor® U.2 NVMe Self-Encrypting Drive Common Criteria Test Report and Procedures,
Version 1.1, 23 July 2026 [9].
A non-proprietary description of the tests performed and their results is provided in the following
document:
• Assurance Activities Report for DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drives,
Version 1.1, 23 July 2026 ([8]).
The purpose of the testing activity was to confirm the TOE behaves in accordance with the TOE
security functional requirements as specified in the ST for a product that claims conformance to
the following specification:
• collaborative Protection Profile for Full Drive Encryption – Encryption Engine, Version
2.0+Errata 20190201, 1 February 2019.
The evaluation team devised a test plan based on the test activities specified in the above
specifications.
Testing for this evaluation was performed on-site. The following diagram shows the test
configuration.
Testing consisted of the following components:
• Test Rig 1
o IP: 172.16.28.1 / MAC: e0:d5:5e:a1:a0:cd
o Ubuntu Linux 20.04 LTS
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o Proprietary FDE test tool
• Test Rig 2
o IP: 172.16.28.2 / MAC: e0:d5:5e:ab:94:23
o Ubuntu Linux 20.04 LTS
o Proprietary FDE test tool
Given the complete set of test results from the test procedures exercised by the evaluators, the
testing requirements for collaborative Protection Profile for Full Drive Encryption – Encryption
Engine were fulfilled.
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8 TOE Evaluated Configuration
The specific TOE products and models listed below include the DigiStor Enterprise PCIe Gen 5 SSD Self
Encrypting Drives running the Phison PS5302-X2 hardware controller on the device models below:
DigiStor Product Name Controller Firmware Form Factor Capacity DigiStor HW Part Number
DigiStor
U.2 Enterprise PCIe Gen
5
PS5302-X2 X2PM40S0
U.2
2TB DIG-P5U20G17-1T6 LG
DIG-P5U20G47-1T6 LG
DIG-P5U20G09-1T9 LG
DIG-P5U20G46-1T9 LG
4TB DIG-P5U20G17-3T2 LG
DIG-P5U20G47-3T2 LG
DIG-P5U20G09-3T8 LG
DIG-P5U20G46-3T8 LG
8TB DIG-P5U20G17-6T4 LG
DIG-P5U20G47-6T4 LG
DIG-P5U20G09-7T6 LG
DIG-P5U20G46-7T6 LG
16TB DIG-P5U20G17-12T LG
DIG-P5U20G47-12T LG
DIG-P5U20G09-15T LG
DIG-P5U20G46-15T LG
32TB DIG-P5U20G17-25T LG
DIG-P5U20G47-25T LG
DIG-P5U20G09-30T LG
DIG-P5U20G46-30T LG
DigiStor
E3.S Enterprise PCIe
Gen 5
E3.S
2TB DIG-P5E3SG17-1T6 LG
DIG-P5E3SG47-1T6 LG
DIG-P5E3SG09-1T9 LG
DIG-P5E3SG46-1T9 LG
4TB DIG-P5E3SG17-3T2 LG
DIG-P5E3SG47-3T2 LG
DIG-P5E3SG09-3T8 LG
DIG-P5E3SG46-3T8 LG
8TB DIG-P5E3SG17-6T4 LG
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DigiStor Product Name Controller Firmware Form Factor Capacity DigiStor HW Part Number
DIG-P5E3SG47-6T4 LG
DIG-P5E3SG09-7T6 LG
DIG-P5E3SG46-7T6 LG
16TB DIG-P5E3SG17-12T LG
DIG-P5E3SG47-12T LG
DIG-P5E3SG09-15T LG
DIG-P5E3SG46-15T LG
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9 Results of the Evaluation
The results of the evaluation of the TOE against its target assurance requirements are generally described
in this section and are presented in detail in the proprietary Evaluation Technical Report for DigiStor
Enterprise PCIe Gen 5 SSD Self-Encrypting Drives ([7]). The reader of this VR can assume that all assurance
activities and work units received passing verdicts.
A verdict for an assurance component is determined by the resulting verdicts assigned to the
corresponding evaluator action elements. The evaluation was conducted based upon CC version 3.1,
revision 5 ([1], [2], [3]) and CEM version 3.1, revision 5 ([4]), and the specific evaluation activities specified
in:
• collaborative Protection Profile for Full Drive Encryption – Encryption Engine, Version
2.0+Errata 20190201, 1 February 2019 ([5])
The evaluation determined the TOE satisfies the conformance claims made in the DigiStor Enterprise PCIe
Gen 5 SSD Self Encrypting Drives Security Target, of Part 2 extended and Part 3 conformant. The TOE
satisfies the requirements specified in the PP listed above.
The Validators reviewed all the work of the evaluation team and agreed with their practices and
findings.
9.1 Evaluation of the Security Target (ST) (ASE)
The evaluation team performed each TSS evaluation activity and ASE CEM work unit. The ST evaluation
ensured the ST contains an ST introduction, TOE overview, TOE description, security problem definition in
terms of threats, policies and assumptions, description of security objectives for the operational
environment, a statement of security requirements claimed to be met by the product that are consistent
with the claimed PP, and security function descriptions that satisfy the requirements.
9.2 Evaluation of the Development (ADV)
The evaluation team performed each ADV evaluation activity and applied each ADV_FSP.1 CEM work unit.
The evaluation team assessed the evaluation evidence and found it adequate to meet the requirements
specified in the claimed PP for design evidence. The ADV evidence consists of the TSS descriptions
provided in the ST, product guidance documentation providing descriptions of the TOE external interfaces,
and the proprietary Key Management Description [10].
9.3 Evaluation of the Guidance Documents (AGD)
The evaluation team performed each guidance evaluation activity and applied each AGD work unit. The
evaluation team determined the adequacy of the operational user guidance in describing how to operate
the TOE in accordance with the descriptions in the ST. The evaluation team followed the guidance in the
TOE preparative procedures to test the installation and configuration procedures to ensure the procedures
result in the evaluated configuration. The guidance documentation was assessed during the design and
testing phases of the evaluation to ensure it was complete.
9.4 Evaluation of the Life Cycle Support Activities (ALC)
The evaluation team performed each ALC evaluation activity and applied each ALC_CMC.1 and ALC_CMS.1
CEM work unit, to the extent possible given the evaluation evidence required by the claimed PP. The
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evaluation team ensured the TOE is labeled with a unique identifier consistent with the TOE identification
in the evaluation evidence.
9.5 Evaluation of the Test Documentation and the Test Activity (ATE)
The evaluation team performed each test activity and applied each ATE_IND.1 CEM work unit. The
evaluation team ran the set of tests specified by the claimed PP and recorded the results in the Test Report,
summarized in the AAR.
9.6 Vulnerability Assessment Activity (AVA)
The evaluation team performed each AVA evaluation activity and applied each AVA_VAN.1 CEM
work unit. The evaluation team performed a vulnerability analysis following the processes
described in the claimed PP. This comprised a search of public vulnerability databases.
The evaluation team performed a search of the National Vulnerability Database (https://nvd.nist.gov/).
• Product name—the evaluation team searched on the following terms:
o “DigiStor”
o “Phison”
• Underlying components—the evaluation team searched on the following terms:
o “PS5302-X2”
o “Arm Cortex-R5”
o “ARMv7-R”
• Search terms specified in [SD-EE]—the evaluation team searched on the following terms:
o “drive encryption”
o “disk encryption”
o “key destruction”
o “key sanitization”
o “self encrypting drive”
o “opal”.
The results of these searches did not identify any vulnerabilities that are applicable to the TOE.
The conclusion drawn from the vulnerability analysis is that no residual vulnerabilities exist that
are exploitable by attackers with Basic Attack Potential as defined by the Certification Body in
accordance with the guidance in the CEM. The vulnerability analysis activities were documented
in DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drive Vulnerability Assessment, Version 1.1,
23 July 2026 [11].
9.7 Summary of Evaluation Results
The evaluation team’s assessment of the evaluation evidence demonstrates that the claims in the ST are
met, sufficient to satisfy the assurance activities specified in the claimed PP. In addition, the evaluation
team’s testing demonstrated the accuracy of the claims in the ST.
The validation team’s assessment of the evidence provided by the evaluation team is that it demonstrates
that the evaluation team followed the procedures defined in the CEM, and correctly verified that the
product meets the claims in the ST.
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10 Validator Comments/Recommendations
The validators suggest that the consumer pay particular attention to the evaluated configuration of the
TOE. As stated in the Clarification of Scope, the evaluated functionality is scoped exclusively to the SFRs
specified in the Security Target, and the only evaluated functionality was that which was described by the
SFRs claimed in the Security Target. All other functionality provided by the TOE needs to be assessed
separately and no further conclusions can be drawn about its effectiveness.
Consumers employing the TOE must follow the configuration instructions provided in the Configuration
Guidance documentation listed in Section 6 to ensure the evaluated configuration is established and
maintained. Consumers are encouraged to download the configuration guide from the NIAP website to
ensure the device is configured as evaluated. Any additional customer documentation provided with the
product, or that is available online was not included in the scope of the evaluation and therefore should
not be relied upon when configuring or operating the device as evaluated.
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11 Security Target
The ST for this product’s evaluation is DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives Security
Target, Version 0.8, 18 June 2026 ([6]).
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12 Abbreviations and Acronyms
This section identifies abbreviations and acronyms used in this document.
AES Advanced Encryption Standard
BEV Border Encryption Value
CC Common Criteria for Information Technology Security Evaluation
CCTL Common Criteria Testing Laboratory
CEM Common Evaluation Methodology
DEK Data Encryption Key
DRBG Deterministic Random Bit Generator
ETR Evaluation Technical Report
HMAC Hashed Message Authentication Code
IT Information Technology
KEK Key Encryption Key
NVMe Nonvolatile Memory express
OEM Original Equipment Manufacturer
PBKDF2 Password-Based Key Derivation Function version 2
PCL Product Compliant List
PIN Personal Identification Number
PP Protection Profile
PSID Physical Security Identification
SAR Security Assurance Requirement
SED Self-Encrypting Drive
SFR Security Functional Requirement
SID Security Identification
SSC Security Subsystem Class
ST Security Target
TCG Trusted Computing Group
TEK Transfer Encryption Key
TOE Target of Evaluation
TSF TOE Security Functions
TSS TOE Summary Specification
VR Validation Report
XEX XOR-encrypt-XOR (a tweakable encryption mode used for disk encryption)
XTS XEX-based tweaked-codebook mode with ciphertext stealing (a mode of
AES used for disk encryption)
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13 Bibliography
The validation team used the following documents to produce this VR:
[1] Common Criteria Project Sponsoring Organisations. Common Criteria for Information
Technology Security Evaluation: Part 1: Introduction and general model, Version 3.1,
Revision 5, April 2017.
[2] Common Criteria Project Sponsoring Organisations. Common Criteria for Information
Technology Security Evaluation: Part 2: Security functional components, Version 3.1,
Revision 5, April 2017.
[3] Common Criteria Project Sponsoring Organisations. Common Criteria for Information
Technology Security Evaluation: Part 3: Security assurance requirements, Version 3.1,
Revision 5, April 2017.
[4] Common Criteria Project Sponsoring Organisations. Common Evaluation Methodology for
Information Technology Security, Version 3.1, Revision 5, April 2017.
[5] collaborative Protection Profile for Full Drive Encryption – Encryption Engine, Version
2.0+Errata 20190201, 1 February 2019.
[6] DigiStor Enterprise PCIe Gen 5 SSD Self Encrypting Drives Security Target, Version 0.8, 18
June 2026
[7] Evaluation Technical Report for DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drives,
Version 1.1, 23 July 2026.
[8] Assurance Activities Report for DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drives,
Version 1.1, 23 July 2026.
[9] DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drives Common Criteria Test Report
and Procedures, Version 1.1, 23 July 2026.
[10] DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drives Common Criteria Full Drive
Encryption – Encryption Engine Key Management Description, Version 1.2, 14 January
2026
[11] DigiStor Enterprise PCIe Gen 5 SSD Self-Encrypting Drive Vulnerability Assessment,
Version 1.1, 23 July 2026