AMD Ryzen PRO 4000 Series PSP Cryptographic
CoProcessor
Module Version: bc0c0042FIPS001
FIPS 140-3 Non-Proprietary Security Policy
Document Version: 1.2
Last update: 2022-12-12
Prepared for:
Advanced Micro Devices (AMD)
2485 Augustine Drive
Santa Clara, CA 95054
www.amd.com
Prepared by:
atsec information security corporation
9130 Jollyville Road, Suite 260
Austin, TX 78759
www.atsec.com
© 2022 Advanced Micro Devices (AMD), atsec information security.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
Table of Contents
0. Introduction...........................................................................................................5
0.1. Overview................................................................................................................................5
0.2. This Security Policy Document...............................................................................................5
0.3. How this Security Policy was Prepared...................................................................................5
1. General..................................................................................................................6
2. Cryptographic Module Specification........................................................................7
2.1. Module Overview, Embodiment, Type....................................................................................7
2.2. Module Design, Components and Versions............................................................................7
2.2.1. Components Excluded from Security Requirements........................................................8
2.3. Security Level........................................................................................................................9
2.4. Tested Operational Environments..........................................................................................9
2.5. Modes of Operation of the Module.........................................................................................9
2.6. Security Functions..................................................................................................................9
2.6.1. Approved Security Functions...........................................................................................9
2.6.2. Non-Approved Security Functions Allowed in Approved Services....................................9
2.6.3. Non-Approved Security Functions Allowed in Approved Services with No Security
Claimed...................................................................................................................................10
2.6.4. Non-Approved Security Functions Not Allowed in Approved Services............................10
2.7. Rules of operation................................................................................................................10
3. Cryptographic Module Interfaces...........................................................................11
4. Roles, Services and Authentication.......................................................................12
4.1. Roles....................................................................................................................................12
4.2. Authentication......................................................................................................................12
4.3. Services...............................................................................................................................12
4.3.1. Services that Use Approved and Allowed Algorithms.....................................................13
4.3.2. Services that Use Non-Approved Algorithms.................................................................14
5. Software/Firmware Security..................................................................................15
5.1. Integrity Techniques............................................................................................................15
5.2. On-Demand Integrity Test....................................................................................................15
6. Operational Environment......................................................................................16
6.1. Applicability.........................................................................................................................16
6.2. Tested Operational Environments........................................................................................16
6.3. Policy and Requirements......................................................................................................16
7. Physical Security..................................................................................................17
7.1. General................................................................................................................................17
8. Non-Invasive Security...........................................................................................18
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
9. Sensitive Security Parameter Management............................................................19
9.1. SSP Generation....................................................................................................................19
9.2. SSP Establishment................................................................................................................19
9.3. SSP Entry/Output..................................................................................................................19
9.4. SSP Storage..........................................................................................................................19
9.5. SSP Zeroization....................................................................................................................19
9.6. Random Number Generation................................................................................................20
10. Self Tests...........................................................................................................21
10.1. Pre-Operational Self-Tests..................................................................................................21
10.1.1. Firmware Integrity Test...............................................................................................21
10.2. Conditional Tests................................................................................................................22
10.2.1. Cryptographic Algorithm Self-Tests.............................................................................22
10.2.2. Periodic/On-Demand Self-Test.....................................................................................22
10.3. Error States........................................................................................................................22
11. Life-Cycle Assurance...........................................................................................23
11.1. Delivery and Operation......................................................................................................23
11.1.1. Procedures for Secure installation, Initialization, Start-up, and Operation of the Module
................................................................................................................................................ 23
11.1.1.1. To enable the FIPS capability..................................................................................23
11.1.1.2. To verify whether FIPS capability is on...................................................................23
11.1.2. Maintenance Requirements.........................................................................................24
11.1.3. End of Life...................................................................................................................25
11.2. Administrator Guidance.....................................................................................................25
11.3. Non-Administrator Guidance..............................................................................................25
12. Mitigation of Other Attacks.................................................................................26
13. Glossary and Abbreviations.................................................................................27
14. References.........................................................................................................28
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
List of Tables
Table 1: Security levels........................................................................................................................................... 6
Table 2: Components in the cryptographic boundary.............................................................................................7
Table 3: Tested operational environments..............................................................................................................9
Table 4: Approved cryptographic algorithms...........................................................................................................9
Table 5: Ports and interfaces................................................................................................................................11
Table 6: Roles, service commands, input, and output..........................................................................................12
Table 7: Approved Services..................................................................................................................................13
Table 8: Sensitive Security Parameters (SSPs)....................................................................................................19
Table 9: Self-tests................................................................................................................................................. 21
Table 10: Error states........................................................................................................................................... 22
List of Figures
Figure 1: The AMD Ryzen PRO SoC, representing all versions of the single chip tested platforms.......................7
Figure 2: The block diagram depicting physical perimeter of the operational environment and cryptographic
boundary, and data flow between the components in the single chip.....................................................................8
Figure 3: AFF Tool indicates that the module was not installed............................................................................24
Figure 4: AFF Tool indicating that the module is installed.....................................................................................24
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
0. Introduction
0.1. Overview
This section is informative to the reader to reference cryptographic services and other services of
AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor (the “module”) from Advanced Micro
Devices (AMD) (the “vendor”). Only the components listed in Section 2.1 are subject to the FIPS
140-3 validation. The CMVP (Cryptographic Module Validation Program) makes no statement as to
the correct operation of the module or the security strengths of the generated keys (when
supported) if the specific operational environment is not listed on the validation certificate.
0.2. This Security Policy Document
This Security Policy describes the features and design of the module named AMD Ryzen PRO 4000
Series PSP Cryptographic CoProcessor1
using the terminology contained in the FIPS 140-3
specification. The FIPS 140-3 Security Requirements for Cryptographic Module specifies the
security requirements that will be satisfied by a cryptographic module utilized within a security
system protecting sensitive but unclassified information. The NIST/CCCS Cryptographic Module
Validation Program (CMVP) validates cryptographic module to FIPS 140-3. Validated products are
accepted by the Federal agencies of both the USA and Canada for the protection of sensitive or
designated information.
The Security Policy document is one document in a FIPS 140-3 Submission Package. In addition to
this document, the Submission Package contains:
 The validation report prepared by the lab.
 The Entropy Assessment Report (EAR) if applicable.
 Other supporting documentation and additional references.
This Non-Proprietary Security Policy may be reproduced and distributed, but only whole and intact
and including this notice. Other documentation is proprietary to their authors.
0.3. How this Security Policy was Prepared
The vendor has provided the non-proprietary Security Policy of the cryptographic module, which
was further consolidated into this document by atsec information security together with other
vendor-supplied documentation. In preparing the Security Policy document, the laboratory
formatted the vendor-supplied documentation for consolidation without altering the technical
statements therein contained. The further refining of the Security Policy document was conducted
iteratively throughout the conformance testing, wherein the Security Policy was submitted to the
vendor, who would then edit, modify, and add technical contents. The vendor would also supply
additional documentation, which the laboratory formatted into the existing Security Policy, and
resubmitted to the vendor for their final editing.
1
PSP: Platform Security Processor
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
1. General
This document is the non-proprietary FIPS 140-3 Security Policy for version bc0c0042FIPS001 of
the AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor cryptographic module. It contains
the security rules under which the module must operate and describes how this module meets the
requirements as specified in FIPS PUB 140-3 (Federal Information Processing Standards Publication
140-3) for an overall Security Level 1 module.
Table 1 describes the individual security areas of FIPS 140-3, as well as the security levels of those
individual areas.
Table 1: Security levels
ISO/IEC 24759 Section 6
[Number Below]
FIPS 140-3 Section Title Security Level
1 General 1
2 Cryptographic Module
Specification
1
3 Cryptographic Module
Interfaces
1
4 Roles, Services, and
Authentication
1
5 Software/Firmware Security 1
6 Operational Environment 1
7 Physical Security 1
8 Non-invasive Security n/a
9 Sensitive Security Parameter
Management
1
10 Self-tests 1
11 Life-cycle Assurance 1
12 Mitigation of Other Attacks n/a
Overall 1
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
2. Cryptographic Module Specification
The following subsections describe the cryptographic module and how it conforms to the FIPS 140-
3 specification in each of the required areas.
2.1. Module Overview, Embodiment, Type
The AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor (hereafter referred to as “the
module”) is defined as a hybrid firmware module in a single chip embodiment, with hardware (the
coprocessor) and firmware components implementing general purpose cryptographic algorithms.
The module supports the Ryzen PRO 4000 Series SoC (System on a Chip) by providing digital
signature verification of the key database during secure boot procedures. The module resides
within the Ryzen SoC that contains the module, the processor, the firmware, and other
components in a single chip embodiment (Figure 1).
Figure 1: The AMD Ryzen PRO SoC, representing all versions of the single chip tested platforms.
The Operational Environments tested for the module are described in Section 2.4.
2.2. Module Design, Components and Versions
Figure 2 shows a block diagram that represents the design of the module. In this diagram, the
physical perimeter of the operational environment, defined by the perimeter of the AMD Ryzen
PRO SoC (i.e., the enclosure of the SoC), is indicated by a purple dashed line. The cryptographic
boundary is represented by the components painted in orange blocks. These components are
further described in Table 2.
Table 2: Components in the cryptographic boundary.
Component Type Version Description
Bootloader
(boot_loader_stage1
.sbin)
Firmware bc0c0042FIPS001 Performs self-tests, provides service
indicator and show status service.
BootROM Non-
reconfigur
able
bc0c0042FIPS001 Provides interface to the hardware
cryptographic implementations.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
Component Type Version Description
memory
RSA implementation
in the CCP
Hardware bc0c0042FIPS001 Hardware implementation of the
algorithm.
SHA2-384
implementation in
the CCP
Hardware bc0c0042FIPS001 Hardware implementation of the
algorithm.
The flow of information between the components and the relation between that data and the
module’s FIPS interfaces are depicted through arrows. The arrows are colored differently to
facilitate visualization. The color does not identify the type of data: the type of data flow (namely,
data input, data output, status output and control input) is indicated by labels pointing to the
arrows.
Components in white are only included in the diagram for informational purposes. They are not
included in the cryptographic boundary (and therefore not part of the module’s validation). For
example, the processor is responsible for executing the non-cryptographic code in the bootloader
and bootROM firmware components.
Figure 2: The block diagram depicting physical perimeter of the operational environment and
cryptographic boundary, and data flow between the components in the single chip.
2.2.1. Components Excluded from Security Requirements
There are no components within the cryptographic boundary that are excluded from the FIPS 140-
3 security requirements.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
2.3. Security Level
The module is validated according to FIPS 140-3 at overall security level 1. The security levels of
individual areas are indicated in Table 1.
2.4. Tested Operational Environments
The module has been tested on the operational environments indicated in Table 3 with the
corresponding module variants and configuration options.
Table 3: Tested operational environments.
# Operating System Hardware Platform Processor PAA/
Acceleration
1 N/A AMD Ryzen PRO 4450U AMD Ryzen PRO 4450U None
2 N/A AMD Ryzen PRO 4650U AMD Ryzen PRO 4650U None
3 N/A AMD Ryzen PRO 4750U AMD Ryzen PRO 4750U None
2.5. Modes of Operation of the Module
The module only implements one mode of operation, the approved mode, in which the approved
cryptographic functions are available. The module transitions to this sole mode of operation
automatically after the module completes its pre-operational self-tests. No configuration is
necessary for the module to operate and remain in the approved mode.
2.6. Security Functions
2.6.1. Approved Security Functions
Table 4 lists all approved security functions (cryptographic algorithms) of the module, including
specific key lengths employed for approved services, and implemented modes or methods of
operation of the algorithms.
Table 4: Approved cryptographic algorithms.
CAVP Cert. Algorithm and
Standard
Mode/Method Description /
Key Size / Key
Strength
Use / Function
A1396 RSA (FIPS 186-4) PKCSPSS with
SHA2-384
4096 Digital signature
verification
A1396 SHA (FIPS 180-4) SHA2-384 N/A Message digest
2.6.2. Non-Approved Security Functions Allowed in Approved Services
The module does not offer any non-approved security functions that are allowed in approved
services.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
2.6.3. Non-Approved Security Functions Allowed in Approved Services with
No Security Claimed
The module does not offer any non-approved security functions that are allowed in approved
services but claim no security.
2.6.4. Non-Approved Security Functions Not Allowed in Approved Services
The module does not offer any non-approved security function not allowed in approved services.
2.7. Rules of operation
The module initializes upon power-on. After the pre-operational self-tests are successfully
concluded, the module automatically transitions to the operational state.
In the operational state, the module automatically performs the signature verification of the key
database using the RSA signature verification service, which is the sole service provided by the
module. The key database and RSA public key are provided as input by the module bootloader
component (who then acts as the operator of the module). After the successful signature
verification of the key database, the module unloads itself from memory, ceasing its operation.
All the procedures described above are conducted without any human assistance. To perform the
procedures again, the module must be reset, which will trigger a new boot.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
3. Cryptographic Module Interfaces
Table 5 summarizes the cryptographic module interfaces2
. The logical interfaces are logically
separated from each other by the API design. The power interface is physically separated from any
other interface.
Table 5: Ports and interfaces.
Physical Port Logical Interface Data that passes over port/interface
SRAM Data Input API input parameters for data.
SRAM Data Output API output parameters for data.
SRAM Control Input API function calls, API input parameters for control.
SRAM Status Output API return codes, status values.
Power port Power (input)
interface
Power port or pin in the single-chip.
2
The module does not implement a control output interface.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
4. Roles, Services and Authentication
4.1. Roles
Table 6 lists the roles supported by the module with corresponding services with input and output.
The module supports the Crypto Officer role only. This sole role is implicitly and always assumed
by the operator of the module.
Table 6: Roles, service commands, input, and output.
Role Service Input Output
Crypto
Officer
Digital Signature
Verification
Key database (pointer to
contents), signature, public
key.
Success, fail.
Crypto
Officer
Show Version None. Name and version
information in data output
interface.
Crypto
Officer
Show Status None. Current status in status
output interface (as return
codes and/or log
messages).
Crypto
Officer
On-Demand Self-Test None. None.
Crypto
Officer
On-Demand Integrity
Test
None. None.
Crypto
Officer
Zeroize None. None.
4.2. Authentication
The module does not support authentication for roles.
4.3. Services
The module provides services to operators that assume the available role. All services are
described in detail in the user documentation.
The next subsections define the services that utilize approved and allowed security functions, and
the services that utilize non-approved security functions in this module. For the respective tables,
the convention below applies when specifying the access permissions (types) that the service has
for each SSP:
 G = Generate: The module generates or derives the SSP.
 R = Read: The SSP is read from the module (e.g. the SSP is output).
 W = Write: The SSP is updated, imported, or written to the module.
 E = Execute: The module uses the SSP in performing a cryptographic operation.
 Z = Zeroise: The module zeroises the SSP.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
The module provides only one approved service with approved parameters, and no non-approved
services. The approved service indicator is thus considered a global indicator and it is set after
successful completion of the pre-operational and conditional self-tests.
4.3.1. Services that Use Approved and Allowed Algorithms
Table 7 lists the approved services and the non-approved but allowed services in this module, the
roles that can request the service, the algorithms involved, the Sensitive Security Parameters
(SSPs) involved and how they are accessed, and the respective service indicator.
In the table, CO specifies the Crypto Officer role.
Table 7: Approved Services.
Service Description Approved
Security
Functions
Keys
and/or
SSPs
Role Access Rights
to Keys and/or
SSPs
Indicator
Digital
Signature
Verification
Verify
signature
operations
RSA PSS
using
SHA2-384
RSA
public
key
CO W, E Global indicator
readable through
Microsoft HSTI
and through UEFI
interactive shell
tool (upon
successful self-
tests and the
module becomes
operational,
module only
offers approved
services).
Other Services
Show
Version
Show the
version of the
module’s
components
N/A None CO N/A None.
Show Status Show status of
the module
state
N/A None CO N/A None.
On-Demand
Self-Test
Initiate on-
demand self-
tests by reset
N/A None CO N/A None.
On-Demand
Integrity
Test
Initiate the
integrity test
(pre-
operational
self-test)
SHA2-384 None CO N/A Global indicator
readable through
Microsoft HSTI
and through UEFI
interactive shell
tool (upon
successful self-
tests and the
module becomes
operational,
module only
offers approved
services).
Zeroize Zeroize PSP in N/A All SSPs CO Z None.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
Service Description Approved
Security
Functions
Keys
and/or
SSPs
Role Access Rights
to Keys and/or
SSPs
Indicator
volatile
memory
4.3.2. Services that Use Non-Approved Algorithms
The module provides no non-approved services.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
5. Software/Firmware Security
5.1. Integrity Techniques
The integrity of the bootloader component of the module (in firmware) is verified by comparing a
SHA2-384 digest calculated at run time with the SHA2-384 digest value stored in the module that
was computed at build time.
The bootROM component of the module is a non-reconfigurable memory (specifically masked
ROM), thus exempt from the requirements of integrity test. The vendor declares that this bootROM
component composed of non-reconfigurable memory does not degrade before 10 (ten) years of
manufacture date, thus complying with the requirements of IG 5.A. Please refer to Section 11.1.3.
5.2. On-Demand Integrity Test
Integrity tests are performed as part of the Pre-Operational Self-Tests. The integrity test may be
invoked on-demand in two ways: through the On-Demand Self-Test service, and through the On-
Demand Integrity Test service.
The module provides the On-Demand Self-Test service to perform self-tests on demand. This
service performs the same cryptographic algorithm tests executed during power-up, i.e., the
cryptographic algorithm self-tests and the pre-operational self-test. This service is invoked by
powering-off and reloading the module.
The On-Demand Integrity Test service can be used to perform only the on-demand pre-operational
self-tests. This service is invoked by calling the integrity test API using the module’s logical
interfaces. More details on the API are provided by the vendor in its developer’s manual.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
6. Operational Environment
6.1. Applicability
The module operates in a non-modifiable operational environment per FIPS 140-3 level 1
specifications. No changes are possible to module firmware code, nor the bootloader firmware
code that interacts with the module.
6.2. Tested Operational Environments
Please see Section 2.4.
6.3. Policy and Requirements
The operational environment provides context separation for the memory and registers utilized by
the module. When these components are used by the module, no other process or sub-component
can access the information concurrently.
The bootloader component also acts as the sole operator of the module, thus there are no
concurrent operators.
No configuration of the operational environment is required for the module to operate in an
approved mode. Therefore, there are no rules, settings, or restrictions to the configuration of the
operational environment.
The module does not have the capability of loading software or firmware from an external source.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
7. Physical Security
7.1. General
The embodiment of the module is a single chip consisting of production-grade components. The
coating is a standard sealing coat applied over the single chip.
The module provides no additional physical security techniques.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
8. Non-Invasive Security
The module claims no non-invasive security techniques.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
9. Sensitive Security Parameter Management
Table 8 summarizes the Sensitive Security Parameters (SSPs) that are used by the cryptographic
services implemented in the module in the approved services (Table 7).
Table 8: Sensitive Security Parameters (SSPs).
SSP Strength Security
Function
and Cert.
#
Generation Import /
Export
Establi
shmen
t
Storage Zero-
ization
Use
RSA
public
key
150 bits RSA
signature
verification
(A1396)
N/A Input in
plaintext
through
data input
interface.
No
output.
MD/EE Volatile
memory
Module
reset
RSA
signatu
re
verifica
tion
9.1. SSP Generation
The module does not generate SSPs.
9.2. SSP Establishment
The module does not implement automated SSP establishment.
9.3. SSP Entry/Output
The module only supports manual distribution, electronic entry of the RSA public key, which is
provided in plaintext by the bootloader operator via the data input interface.
No other SSPs are entered into the module. No SSPs are output from the module.
9.4. SSP Storage
SSPs are provided to the module by the calling process and are destroyed when released by the
respective functions.
The module does not perform persistent storage of SSPs; keys in use by the module exist in
volatile memory only.
9.5. SSP Zeroization
The module’s functions deallocates and zeroizes temporary SSP values in volatile memory used
during the function’s execution. The zeroization consists of writing zeroes to the memory location
used by the SSP before deallocating the area. The module does not overwrite the SSP with another
SSP.
The zeroization service for the SSP in volatile memory consists of powering off the module, which
will remove power from the volatile memory. This action will cause the value of the SSP in volatile
memory to be overwritten by random values the next time the module is powered on. The
successful act of powering off the module serves as the implicit indicator of zeroization.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
The RSA public key used for the RSA signature verification function is not stored within the
components of the module, but in permanent storage outside of the single chip. This storage can
be zeroized by blowing the memory fuse (outside of the single chip).
9.6. Random Number Generation
The module does not implement random number generation.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
10. Self Tests
The module performs pre-operational self-tests and conditional self-tests. While the module is
executing the self-tests, services are not available, and data output (via the data output interface)
is inhibited until the tests are successfully completed.
All the self-tests are listed in Table 9, with the respective condition under which those tests are
performed. The firmware integrity test is performed after all conditional algorithm self-tests
(CASTs) are performed.
Table 9: Self-tests.
Algorithm Parameters Condition for
Test
Type Test
RSA SHA2-384
and 4096-
bit key
Power up Conditional Algorithm
Self-Test
KAT signature verification
SHA2-384 N/A Firmware
integrity test on
bootloader
component at
power up (after
all CASTs)
Pre-Operational Self-
Test
Digest verification on
bootloader firmware
component
SHA2-384 N/A Power up Conditional Algorithm
Self-Test
KAT SHA2-384
10.1. Pre-Operational Self-Tests
The module performs pre-operational tests automatically when the module is powered on. The
pre-operational self-tests ensure that the module is not corrupted and that the cryptographic
algorithms work as expected. The module transitions to the operational state only after the pre-
operational self-tests are passed successfully.
The types of pre-operational self-tests are described in the next sub-sections.
10.1.1. Firmware Integrity Test
The integrity of the bootloader component of the module (in firmware) is verified by comparing a
SHA2-384 digest value calculated at run time with the SHA2-384 digest value stored in the module
that was computed at build time. If the comparison verification fails, the module transitions to the
error state (Section 10.3). The SHA2-384 algorithm goes through its conditional algorithm self-test
before the integrity test is performed (Table 9).
The bootROM component of the module is considered non-reconfigurable memory, thus exempt
from the requirements of integrity test. The vendor declares that this bootROM component
composed of non-reconfigurable memory does not degrade before 10 (ten) years of manufacture
date, thus complying with the requirements of IG 5.A.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
10.2. Conditional Tests
10.2.1. Cryptographic Algorithm Self-Tests
The module performs self-tests on all FIPS approved cryptographic algorithms supported in the
approved mode of operation, using the tests shown in Table 9. Data output through the data
output interface is inhibited during the self-tests.
10.2.2. Periodic/On-Demand Self-Test
The module performs on-demand self-tests initiated by the operator, by powering off and powering
the module back on. The full suite of self-tests in Table 9 is then executed.
The same procedure may be employed by the operator to perform periodic self-tests.
10.3. Error States
If the module fails any of the self-tests, the module enters the error state. In the error state, the
module outputs the error type through the status indicator and status output interface. In the error
state, the data output interface is inhibited and the module accepts no more inputs or requests.
The module does not implement a control output interface.
Table 10 lists the error state and the status indicator (through FW_STATUS variable) values that
explains the error that has occurred.
Table 10: Error states.
Error State Error Condition Status Indicator (FW_STATUS)
Error SHA2-384 self-test error Error code AA0000FB
RSA self-test error Error code AA0000FC
Integrity test error Error code AA0000FD
To recover from the error state (clearing the error condition), the module shall be restarted or
reset.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
11. Life-Cycle Assurance
11.1. Delivery and Operation
11.1.1. Procedures for Secure installation, Initialization, Start-up, and
Operation of the Module
The procedures herein described are directed at OEMs for producing and configuring their BIOS so
that the FIPS module is properly installed to operate as the validated module in conformance with
the rules in this Security Policy document.
Once properly installed and enabled, no configuration is necessary for the module to operate and
remain in the approved mode, as it is the only mode of operation of the module.
11.1.1.1. To enable the FIPS capability
1. Reserve 16KiB at least for Platform Security Processor level 1 directory, as the FIPS module
requires additional 8KiB of ROM space for the Platform Security Processor L1 Bootloader.
2. The Platform BIOS must include the file with “_FIPS” postfix in the file name as Platform
Security Processor entry 0x1. For example, the file
PspBootLoader_stage1_prod_AB_RN_FIPS.sbin has “_FIPS” postfix in the file name. This file
is thus a FIPS capable Platform Security Processor boot loader. Conversely, the file
PspBootLoader_stage1_prod_AB_RN.sbin does not have “_FIPS” postfix in the file name,
making this file a non-FIPS capable Platform Security Processor boot loader.
3. Set BIT 32 of Platform Security Processor soft fuse chain (Platform Security Processor entry
0xB) to enable FIPS capability.
a. The BIT32 in Platform Security Processor entry 0xB is defined as FIPS capability
enablement. If 0, the FIPS capability is OFF; if 1, the FIPS capability is ON (i.e., the
module is properly installed as the validated module described in this document).
11.1.1.2. To verify whether FIPS capability is on
1. Boot the system into UEFI shell with secure boot disabled.
2. Use the UEFI shell version of the AFF Tool version 0.3 and beyond. This tool is provided by
the vendor. Run the AFF Tool with the command: afftool –fips from the interactive UEFI shell
provided by the BIOS.
a. If it shows “FIPS mode: on”, the FIPS module installed correctly.
b. If it shows “FIPS mode: off”, the FIPS module is not installed (correctly).
The screenshot in Figure 3 shows the usage of the AFF Tool. The output indicates that the FIPS
module is not installed. In this condition, the SoC does not operate in conformance with this
Security Policy document.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
Figure 3: AFF Tool indicates that the module was not installed.
The screenshot in Figure 4 again shows the usage of the AFF Tool. The output demonstrates that
the FIPS module is installed and thus the SoC will operate as the FIPS validated module according
to the rules in this Security Policy document.
Figure 4: AFF Tool indicating that the module is installed.
11.1.2. Maintenance Requirements
There are no maintenance requirements.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
11.1.3. End of Life
The process for performing “End of Life” occurs at the chronological point of 10 years starting from
manufacturing date of the module.
As stated in Section 9.4, the module does not possess persistent storage of SSPs. The SSP value
only exists in volatile memory and that value vanishes when the module is powered off. The
procedure for secure sanitization of the module at the end of life is simply to power it off, which is
the action of zeroization of the SSPs (Section 9.5) . As a result of this sanitization via power-off, the
SSP is removed from the module, so that the module may either be distributed to other operators
or disposed.
11.2. Administrator Guidance
All the functions, ports and logical interfaces described in this document are available to the
Crypto Officer. The module only provides approved functions, and as such there are no special
procedures to administer the approved mode of operation.
11.3. Non-Administrator Guidance
The module implements only the Crypto Officer. There are no requirements for non-administrator
operators.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
12. Mitigation of Other Attacks
The module does not implement security mechanisms to mitigate other attacks.
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
13. Glossary and Abbreviations
AES Advanced Encryption Standard
CAVP Cryptographic Algorithm Validation Program
CMVP Cryptographic Module Validation Program
CSP Critical Security Parameter
DRBG Deterministic Random Bit Generator
FIPS Federal Information Processing Standards
HMAC Hash Message Authentication Code
HSTI (Microsoft) Hardware Security Test Interface
KAT Known Answer Test
MAC Message Authentication Code
NIST National Institute of Science and Technology
OS Operating System
PAA Processor Algorithm Acceleration
PSS Probabilistic Signature Scheme
RNG Random Number Generator
RSA Rivest, Shamir, Addleman
SHA Secure Hash Algorithm
SHS Secure Hash Standard
XTS XEX-based Tweaked-codebook mode with cipher text Stealing
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AMD Ryzen PRO 4000 Series PSP Cryptographic CoProcessor FIPS 140-3 Non-Proprietary Security Policy
14. References
FIPS PUB 180-4. Secure Hash Standard (SHS). (2012, 3). FIPS PUB 180-4. Secure Hash Standard
(SHS). Gaithersburg, MD 20899-8900: National Institute of Standards & Technology.
Retrieved from http://csrc.nist.gov/publications/fips/fips180-4/fips-180-4.pdf
FIPS PUB 186-4. Digital Signature Standard (DSS). (2013, 7). FIPS PUB 186-4. Digital Signature
Standard (DSS). https://doi.org/10.6028/NIST.FIPS.186-4.
doi:https://doi.org/10.6028/NIST.FIPS.186-4
Implementation Guidance for FIPS 140-3 and the Cryptographic Module Validation Program. (2021,
5 4). Implementation Guidance for FIPS 140-3 and the Cryptographic Module Validation
Program. Retrieved 03 8, 2021, from
https://csrc.nist.gov/CSRC/media/Projects/cryptographic-module-validation-program/
documents/fips 140-3/FIPS 140-3 IG.pdf
ISO/IEC. (2012, 8). ISO/IEC 19790:2012 Information technology — Security techniques — Security
requirements for cryptographic modules. ISO/IEC 19790:2012 Information technology —
Security techniques — Security requirements for cryptographic modules. Retrieved from
https://www.iso.org/standard/52906.html
ISO/IEC. (2017, 3). ISO/IEC 24759:2017 Information technology — Security techniques — Test
requirements for cryptographic modules. ISO/IEC 24759:2017 Information technology —
Security techniques — Test requirements for cryptographic modules. Retrieved from
https://www.iso.org/standard/72515.html
National Institute of Standards Technology. (2019, 3). FIPS PUB 140-3. Security Requirements for
Cryptographic Modules. FIPS PUB 140-3. Security Requirements for Cryptographic Modules.
Retrieved from https://nvlpubs.nist.gov/nistpubs/FIPS/NIST.FIPS.140-3.pdf
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