Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 1 of 24
Gloo BoringCrypto
FIPS 140-2 Non-Proprietary Security Policy
Software version: 1701
Date: 08/03/2022
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 2 of 24
Introduction
Federal Information Processing Standards Publication 140-2 — Security Requirements for Cryptographic
Modules specifies requirements for cryptographic modules to be deployed in a Sensitive but
Unclassified environment. The National Institute of Standards and Technology (NIST) and Canadian
Centre for Cyber Security (CCCS) Cryptographic Module Validation Program (CMVP) run the FIPS 140
program. The NVLAP accredits independent testing labs to perform FIPS 140 testing; the CMVP validates
modules meeting FIPS 140 validation. Validated is the term given to a module that is documented and
tested against the FIPS 140 criteria.
More information is available on the CMVP website at:
http://csrc.nist.gov/groups/STM/cmvp/index.html.
About this Document
This non-proprietary Cryptographic Module Security Policy for Gloo BoringCrypto from Solo.io provides
an overview of the product and a high-level description of how it meets the overall Level 1 security
requirements of FIPS 140-2.
Gloo BoringCrypto module may also be referred to as the “module” in this document.
Disclaimer
The contents of this document are subject to revision without notice due to continued progress in
methodology, design, and manufacturing. Solo.io. shall have no liability for any error or damages of any
kind resulting from the use of this document.
The software referenced in this document is licensed to you under the terms and conditions
accompanying the software or as otherwise agreed between you or the company that you are
representing.
Notices
This document may be freely reproduced and distributed in its entirety without modification.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 3 of 24
Table of Contents
Introduction................................................................................................................................................... 2
About this Document .................................................................................................................................... 2
Disclaimer...................................................................................................................................................... 2
Notices........................................................................................................................................................... 2
1. Introduction........................................................................................................................................... 6
2. FIPS 140-2 Security Levels ..................................................................................................................... 7
3. Cryptographic Module Specification ..................................................................................................... 8
3.1 Cryptographic Boundary................................................................................................................ 8
4. Modes of Operation.............................................................................................................................. 9
5. Cryptographic Module Ports and Interfaces ......................................................................................... 9
6. Roles, Authentication and Services ..................................................................................................... 10
7. Physical Security................................................................................................................................... 12
8. Operational Environment.................................................................................................................... 12
9. Cryptographic Algorithms & Key Management................................................................................... 13
9.1 Approved Cryptographic Algorithms........................................................................................... 13
9.2 Allowed Cryptographic Algorithms.............................................................................................. 14
9.3 Non-Approved Cryptographic Algorithms................................................................................... 14
9.4 Cryptographic Key Management................................................................................................. 15
9.5 Public Keys................................................................................................................................... 15
9.6 Key Generation............................................................................................................................ 16
9.7 Key Storage.................................................................................................................................. 16
9.8 Key Zeroization............................................................................................................................ 16
10. Self-tests.......................................................................................................................................... 17
10.1 Power-On Self-Tests .................................................................................................................... 17
10.2 Conditional Self-Tests.................................................................................................................. 17
11. Mitigation of other Attacks ............................................................................................................. 18
12. Guidance and Secure Operation ...................................................................................................... 19
12.1 Installation Instructions................................................................................................................ 19
12.2 Secure Operation......................................................................................................................... 20
12.2.1 Initialization......................................................................................................................... 20
12.2.2 Usage of AES OFB, CFB and CFB8 ........................................................................................ 20
12.2.3 Usage of AES-GCM............................................................................................................... 20
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 4 of 24
12.2.4 Usage of Triple-DES............................................................................................................. 20
12.2.5 RSA and ECDSA Keys............................................................................................................ 20
13. References and Standards............................................................................................................... 22
14. Acronyms and Definitions ............................................................................................................... 22
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 5 of 24
List of Tables
Table 1 – Tested Operational Environments.................................................................................................6
Table 2 – Validation Level by FIPS 140-2 Section ..........................................................................................7
Table 3 – Ports and Interfaces.......................................................................................................................9
Table 4 – Approved Services, Roles and Access Rights................................................................................10
Table 5 – non-Approved or non-security relevant services.........................................................................10
Table 6 - Non-Security Relevant Services....................................................................................................11
Table 7 – Approved Algorithms and CAVP Certificates ...............................................................................14
Table 8 – Allowed Algorithms......................................................................................................................14
Table 9 – Non-Approved Algorithms...........................................................................................................14
Table 10 – Keys and CSPs supported...........................................................................................................15
Table 11 – Public keys supported................................................................................................................15
Table 12 – Power-on Self-tests....................................................................................................................17
Table 13 – Conditional Self-tests.................................................................................................................17
Table 14 – References and Standards .........................................................................................................22
Table 15 – Acronyms and Definitions..........................................................................................................23
List of Figures
Figure 1 – Logical Boundary...........................................................................................................................8
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 6 of 24
1. Introduction
Solo.io Gloo BoringCrypto module (hereafter referred to as the “module”) is an open-source, general-
purpose cryptographic library which provides FIPS 140-2 approved cryptographic algorithms to serve
BoringSSL and other user-space applications. The validated version of the library is 1701. For the
purposes of the FIPS 140-2 validation, its embodiment type is defined as multi-chip standalone.
The cryptographic module was tested on the following operational environments on the general-
purpose computer (GPC) platforms detailed below:
# Operating System Platform Compiler
1 Debian Linux 4.19.37 (Rodete) HPE Z620 with Intel Xeon E5-2680
(with PAA)
Clang (7.0.1)
2 Debian Linux 4.19.37 (Rodete) HPE Z620 with Intel Xeon E5-2680
(without PAA)
Clang (7.0.1)
3 Ubuntu Linux 18.04 Google Arcadia-Rome with AMD Rome
(with PAA)
Clang (7.0.1)
4 Ubuntu Linux 18.04 Google Arcadia-Rome with AMD Rome
(without PAA)
Clang (7.0.1)
5 Ubuntu Linux 18.04 Zaius P9 with POWER9 (with PAA) Clang (7.0.1)
6 Ubuntu Linux 18.04 Zaius P9 with POWER9 (without PAA) Clang (7.0.1)
Table 1 – Tested Operational Environments
The cryptographic module is also supported on the following operational environments for which
operational testing and algorithm testing was not performed:
• Linux 4.X executing on x86_64 architecture;
• Linux 4.X executing on POWER9 architecture;
• Linux 5.X executing on x86_64 architecture; and
• Linux 5.X executing on POWER9 architecture.
As per FIPS 140-2 Implementation Guidance G.5, compliance is maintained for other versions of the
respective operational environments where the module binary is unchanged. No claim can be made as
to the correct operation of the module or the security strengths of the generated keys if any source
code is changed and the module binary is reconstructed.
The GPC(s) used during testing met Federal Communications Commission (FCC) FCC Electromagnetic
Interference (EMI) and Electromagnetic Compatibility (EMC) requirements for business use as defined
by 47 Code of Federal Regulations, Part 15, Subpart B. FIPS 140-2 validation compliance is maintained
when the module is operated on other versions of the GPOS running in single user mode, assuming that
the requirements outlined in NIST IG G.5 are met.
The CMVP makes no statement as to the correct operation of the module or the security strengths of
the generated keys when so ported if the specific operational environment is not listed on the validation
certificate.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 7 of 24
2. FIPS 140-2 Security Levels
The following table lists the level of validation for each area in FIPS 140-2:
FIPS 140-2 Section Title Validation Level
Cryptographic Module Specification 1
Cryptographic Module Ports and Interfaces 1
Roles, Services, and Authentication 1
Finite State Model 1
Physical Security N/A
Operational Environment 1
Cryptographic Key Management 1
Electromagnetic Interference / Electromagnetic Compatibility 1
Self-Tests 1
Design Assurance 1
Mitigation of Other Attacks N/A
Overall Level 1
Table 2 – Validation Level by FIPS 140-2 Section
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 8 of 24
3. Cryptographic Module Specification
3.1 Cryptographic Boundary
The module is a software library providing a C-language application program interface (API) for use by
other processes that require cryptographic functionality. All operations of the module occur via calls
from host applications and their respective internal daemons/processes. As such there are no untrusted
services calling the services of the module.
The physical cryptographic boundary is the general-purpose computer on which the module is installed.
The logical cryptographic boundary of the Gloo BoringCrypto module is a single object file named
“bcm.o” which is statically linked to BoringSSL. The module performs no communications other than
with the calling application (the process that invokes the module services) and the host operating
system.
Figure 1 shows the logical relationship of the cryptographic module to the other software and hardware
components of the computer.
Figure 1 – Logical Boundary
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 9 of 24
4. Modes of Operation
The module supports two modes of operation: Approved and Non-approved. The module will be in FIPS-
approved mode when all power up self-tests have completed successfully, and only Approved
algorithms are invoked. See Table 7 below for a list of the supported Approved algorithms and Table 8
for allowed algorithms. The non-Approved mode is entered when a non-Approved algorithm is invoked.
See Table 9 for a list of non-Approved algorithms.
5. Cryptographic Module Ports and Interfaces
The Data Input interface consists of the input parameters of the API functions. The Data Output
interface consists of the output parameters of the API functions. The Control Input interface consists of
the actual API input parameters. The Status Output interface includes the return values of the API
functions.
FIPS Interface Physical Ports Logical Interfaces
Data Input Physical ports of the tested platforms API input parameters
Data Output Physical ports of the tested platforms API output parameters and return
values
Control Input Physical ports of the tested platforms API input parameters
Status Output Physical ports of the tested platforms API return values
Power Input Physical ports of the tested platforms N/A
Table 3 – Ports and Interfaces
As a software module, control of the physical ports is outside module scope. However, when the module
is performing self-tests, or is in an error state, all output on the module’s logical data output interfaces is
inhibited.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 10 of 24
6. Roles, Authentication and Services
The cryptographic module implements both User and Crypto Officer (CO) roles. The module does not
support user authentication. The User and CO roles are implicitly assumed by the entity accessing
services implemented by the module. A user is considered the owner of the thread that instantiates the
module and, therefore, only one concurrent user is allowed.
The Approved services supported by the module and access rights within services accessible over the
module’s public interface are listed in the table below.
Service Approved security
functions
Keys and/or CSPs Roles Access rights to keys
and/or CSPs
Module Initialization N/A N/A CO N/A
Symmetric
encryption/decryption
AES, Triple-DES AES, Triple-DES
symmetric keys
User, CO Execute
Keyed hashing HMAC-SHA HMAC key User, CO Execute
Hashing SHS None User, CO N/A
Random Bit
Generation
CTR_DRBG DRBG seed, internal
state V and Key
values
User, CO Write/Execute
Signature generation/
verification
CTR_DRBG
RSA
ECDSA
RSA, ECDSA private
key
User, CO Write/Execute
Key Transport RSA RSA private key User, CO Write/Execute
Key Agreement KAS ECC EC DH private key User, CO Write/Execute
Key Generation CTR_DRBG
RSA
ECDSA
RSA, ECDSA private
key
User, CO Write/Execute
On-Demand
Self-test
None None User, CO Execute
Zeroization None All keys User, CO Write/Execute
Show status None None User, CO N/A
Table 4 – Approved Services, Roles and Access Rights
The module provides the following non-Approved services which utilize algorithms listed in Table 9:
Service Non-Approved Functions Roles Keys and/or CSPs
Symmetric
encryption/decryption
AES (non-compliant),
DES, Triple-DES (non-
compliant)
User, CO N/A
Hashing MD4, MD5, POLYVAL User, CO N/A
Signature generation/
verification
RSA (non-compliant)
ECDSA (non-compliant)
User, CO N/A
Key Transport RSA (non-compliant) User, CO N/A
Key Generation RSA (non-compliant)
ECDSA (non-compliant)
User, CO N/A
Table 5 – non-Approved or non-security relevant services
The module also provides the following non-Approved or non-security relevant services over a non-
public interface:
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 11 of 24
Service Approved Security
Functions
Roles Access rights to keys
and/or CSPs
Large integer operations None User, CO N/A
Disable automatic
generationof CTR_DRBG
"additional_input"
parameter"
CTR_DRBG User, CO N/A
Wegman-Carter hashing
with POLYVAL
None User, CO N/A
Table 6 - Non-Security Relevant Services
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 12 of 24
7. Physical Security
The cryptographic module is comprised of software only and thus does not claim any physical security.
8. Operational Environment
The cryptographic module operates under Ubuntu Linux 18.04 and Debian Linux 4.19.37. The module
runs on a GPC running one of the operating systems specified in Table 1. Each approved operating
system manages processes and threads in a logically separated manner. The module’s user is considered
the owner of the calling application that instantiates the module.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 13 of 24
9. Cryptographic Algorithms & Key Management
9.1 Approved Cryptographic Algorithms
The module implements the following FIPS 140-2 Approved algorithms:
CAVP Cert # Algorithm Standard Mode/Method Use
C1063 AES SP 800-38A
FIPS 197
SP 800-38F
128, 192, 256 CBC, ECB,
CTR
Encryption, Decryption,
Authentication
C1063 AES SP 800-38D 128 and 256
GCM/GMAC
Authenticated
Encryption,
Authenticated
Decryption
C1063 KTS SP 800-38F KW, KWP Key Wrapping, Key
Unwrapping
C1063 CVL SP 800-135rev1 TLS 1.0/1.1 and 1.2 KDF1
Key Derivation
Vendor
Affirmed
CKG SP 800-133 Cryptographic Key
Generation
Key Generation
C1063 DRBG SP 800-90Arev1 AES-256 CTR_DRBG Random Bit Generation
C1063 ECDSA FIPS 186-4 Signature Generation
Component, Key Pair
Generation, Signature
Generation, Signature
Verification, Public Key
Validation
P-224, P-256, P-384, P-
521
Digital Signature
Services
C1063 HMAC FIPS 198-1 HMAC-SHA-1, HMAC-
SHA-224, HMAC-SHA-256,
HMAC-SHA-384, HMAC-
SHA-512
Generation,
Authentication
C1063 RSA FIPS 186-4 Key Generation,
Signature Generation,
Signature Verification
(1024, 2048, 3072)
Note: Key size 1024 is
only used for Signature
Verification
Digital Signature
Services
C1063 SHA FIPS 180-4 SHA-1, SHA-224, SHA-
256, SHA-384, SHA-512
Digital Signature
Generation, Digital
Signature Verification,
non-Digital Signature
Applications
C1063 Triple-DES SP 800-67
SP 800-38A
TCBC, TECB Encryption, Decryption
1
The module supports FIPS 140-2 approved/allowed cryptographic algorithms for TLS 1.0, 1.1 and 1.2.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 14 of 24
Vendor
Affirmed
KAS-SSC SP 800-56rev3 EC Diffie-Hellman P-224,
P-256, P-384 and P-521
(SHA2-224, SHA2-256,
SHA2-384, SHA2-512)
Key Agreement Scheme
– Key Agreement
Scheme Shared Secret
Computation (KAS-SSC)
per SP 800-56Arev3, Key
Derivation per SP 800-
135 (CVL Cert. #C1063
TLS KDF)
Table 7 – Approved Algorithms and CAVP Certificates
9.2 Allowed Cryptographic Algorithms
The module supports the following non-FIPS 140-2 Approved but allowed algorithms that may be used
in the Approved mode of operation.
Algorithm Use
RSA Key Transport Key establishment methodology provides between 112 and 256 bits of
encryption strength
MD5 When used with the TLS protocol version 1.0 and 1.1
NDRNG Used only to seed the Approved DRBG
Table 8 – Allowed Algorithms
9.3 Non-Approved Cryptographic Algorithms
The module employs the methods listed in Table 9, which are not allowed for use in a FIPS-Approved
mode. Their use will result in the module operating in a non-Approved mode.
MD5, MD4 DES
AES-GCM/GMAC (non-compliant) AES (non-compliant)
ECDSA (non-compliant) RSA (non-compliant)
POLYVAL Triple-DES (non-compliant)
Table 9 – Non-Approved Algorithms
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 15 of 24
9.4 Cryptographic Key Management
The table below provides a complete list of Private Keys and CSPs used by the module:
Key/CSP Name Key Description Generated/ Input Output
AES Key AES (128/192/256) encrypt / decrypt
key
Input via API in
plaintext
Output via API in
plaintext
AES-GCM/GMAC Key AES (128/256) encrypt / decrypt /
generate / verify key
Input via API in
plaintext
Output via API in
plaintext
AES Wrapping Key AES (128/192/256) key wrapping key Input via API in
plaintext
Output via API in
plaintext
Triple-DES Key Triple-DES (3-Key) encrypt / decrypt
key
Input via API in
plaintext
Output via API in
plaintext
ECDSA Signing Key ECDSA (P-224/P-256/P-384/P-521)
signature generation key
Internally Generated
or input via API in
plaintext
Output via API in
plaintext
EC DH Private Key EC DH (P-224/P-256/P-384/P-521)
private key
Internally Generated
or input via API in
plaintext
Output via API in
plaintext
HMAC Key Keyed hash key
(160/224/256/384/512)
Input via API in
plaintext
Output via API in
plaintext
RSA Key (Key
Transport)
RSA (2048 to 16384 bits) key
decryption (private key transport)
key
Internally Generated
or input via API in
plaintext
Output via API in
plaintext
RSA Signature
Generation Key
RSA (2048 to 16384 bits) signature
generation key
Internally Generated
or input via API in
plaintext
Output via API in
plaintext
TLS Pre-Master
Secret
Shared Secret; 48 bytes of pseudo-
random data
Internally Generated Output via API in
plaintext
TLS Master Secret Shared Secret; 48 bytes of pseudo-
random data
Internally Derived via
key derivation
function defined in
SP 800-135 KDF
(TLS).
Output via API in
plaintext
CTR_DRBG V (Seed) 128 bits Internally Generated Does not exit the
module
CTR_DRBG Key 256 bits Internally Generated Does not exit the
module
CTR_DRBG Entropy
Input
384 bits Input via API in
plaintext
Does not exit the
module
9.5 Public Keys
Table 10 – Keys and CSPs supported
The table below provides a complete list of the Public keys used by the module:
Public Key Name Key Description
ECDSA Verification Key ECDSA (P-224/P-256/P-384/P-521) signature
verification key
EC DH Public Key EC DH (P-224/P-256/P-384/P-521) public key
RSA Key (Key Transport) RSA (2048 to 16384 bits) key encryption
(public key transport) key
RSA Signature Verification Key RSA (1024 to 16384 bits) signature
verification public key
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 16 of 24
Table 11 – Public keys supported
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 17 of 24
9.6 Key Generation
The module supports generation of ECDSA, EC Diffie-Hellman and RSA key pairs as specified in Section 5
of NIST SP 800-133. The module employs a NIST SP 800-90A random bit generator for creation of the
seed for asymmetric key generation. The module requests a minimum number of 128 bits of entropy
from its Operational Environment per each call.
The output data path is provided by the data interfaces and is logically disconnected from processes
performing key generation or zeroization. No key information will be output through the data output
interface when the module zeroizes keys.
9.7 Key Storage
The cryptographic module does not perform persistent storage of keys. Keys and CSPs are passed to the
module by the calling application. The keys and CSPs are stored in memory in plaintext. Keys and CSPs
residing in internally allocated data structures (during the lifetime of an API call) can only be accessed
using the module defined API. The operating system protects memory and process space from
unauthorized access.
9.8 Key Zeroization
The module is passed keys as part of a function call from a calling application and does not store keys
persistently. The calling application is responsible for parameters passed in and out of the module. The
Operating System and the calling application are responsible to clean up temporary or ephemeral keys.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 18 of 24
10. Self-tests
FIPS 140-2 requires the module to perform self-tests to ensure the integrity of the module and the
correctness of the cryptographic functionality at start up. Some functions require conditional tests
during normal operation of the module. The supported tests are listed and described in this section.
10.1 Power-On Self-Tests
Power-on self-tests are run upon the initialization of the module and do not require operator
intervention to run. If any of the tests fail, the module will not initialize. The module will enter an error
state and no services can be accessed.
The module implements the following power-on self-tests:
Type Test
Integrity Test HMAC-SHA-512
Known Answer
Test
AES KAT (encryption and decryption. Key size: 128-bits)
AES-GCM/GMAC KAT (encryption and decryption. Key size: 128-bits)
Triple-DES KAT (encryption and decryption. Key size: 168-bits)
ECDSA KAT (signature generation/signature verification. Curve: P-256)
HMAC KAT (HMAC-SHA-1, HMAC-SHA-512)
SP 800-90A CTR_DRBG KAT (Key size: 256-bits)
RSA KAT (signature generation/signature verification and
encryption/decryption. Key size: 2048-bit)
SHA KAT (SHA-1, SHA-256, SHA-512)
Table 12 – Power-on Self-tests
Each module performs all power-on self-tests automatically when the module is initialized. All power-on
self-tests must be passed before a User/Crypto Officer can perform services. The Power-on self-tests can
be run on demand by power-cycling the host platform.
10.2 Conditional Self-Tests
Conditional self-tests are run during operation of the module. If any of these tests fail, the module will
enter an error state, where no services can be accessed by the operators. The module can be re-
initialized to clear the error and resume FIPS mode of operation. Each module performs the following
conditional self-tests:
Type Test
Pair-wise
Consistency Test
ECDSA Key Pair generation
RSA Key Pair generation
CRNGT Performed on NDRNG per IG 9.8
DRBG Health
Tests
Performed on DRBG, per SP 800‐90A Section 11.3. Required per IG
C.1.
Table 13 – Conditional Self-tests
Pairwise consistency tests are performed for both possible modes of use, e.g. Sign/Verify and
Encrypt/Decrypt.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 19 of 24
11. Mitigation of other Attacks
The module is not designed to mitigate against attacks which are outside of the scope of FIPS 140-2.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 20 of 24
12. Guidance and Secure Operation
12.1 Installation Instructions
The following steps shall be performed to build, compile and statically link the Gloo BoringCrypto module to
BoringSSL on the tested Operational Environments. The cryptographic module
The below tools are required in order to build and compile the module:
• Clang compiler version 7.0.1 (http://releases.llvm.org/download.html)
• Go programming language version 1.12.7 (https://golang.org/dl/)
• Ninja build system version 1.90 (https://github.com/ninja-build/ninja/releases)
Once the above tools have been obtained, issue the following command to create a CMake toolchain file
to specify the use of Clang:
• printf "set(CMAKE_C_COMPILER \"clang\")\nset(CMAKE_CXX_COMPILER \"clang++\")\n" >
${HOME}/toolchain
The FIPS 140-2 validated release of the module can be obtained by downloading the tarball containing
the source code at the following location:
https://commondatastorage.googleapis.com/chromium-boringssl-fips/boringssl-
ae223d6138807a13006342edfeef32e813246b39.tar.xz
or by issuing the following command:
wget https://commondatastorage.googleapis.com/chromium-boringssl-fips/boringssl-
ae223d6138807a13006342edfeef32e813246b39.tar.xz
The set of files specified in the archive constitutes the complete set of source files of the validated
module. There shall be no additions, deletions, or alterations of this set as used during module build.
The downloaded tarball file can be verified using the below SHA-256 digest value:
3b5fdf23274d4179c2077b5e8fa625d9debd7a390aac1d165b7e47234f648bb8
By issuing the following command:
• sha256sum boringssl-ae223d6138807a13006342edfeef32e813246b39.tar.xz
After the tarball has been extracted, the following commands will compile the module:
1. cd boringssl
2. mkdir build && cd build && cmake -GNinja -DCMAKE_TOOLCHAIN_FILE=${HOME}/toolchain -
DFIPS=1 -DCMAKE_BUILD_TYPE=Release ..
3. ninja
4. ninja run_tests
Upon completion of the build process. The module’s status can be verified by issuing:
• ./tool/bssl isfips
The module will print “1” if it is in a FIPS 140-2 validated mode of operation.
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 21 of 24
12.2 Secure Operation
12.2.1 Initialization
The cryptographic module is initialized by loading the module before any cryptographic functionality is
available. In User Space the operating system is responsible for the initialization process and loading of
the library. The module is designed with a default entry point (DEP) which ensures that the power-up
tests are initiated automatically when the module is loaded.
12.2.2 Usage of AES OFB, CFB and CFB8
In approved mode, users of the module must not utilize AES OFB, CFB and CFB8.
12.2.3 Usage of AES-GCM
In the case of AES-GCM, the IV generation method is user selectable and the value can be computed in
more than one manner.
AES GCM encryption and decryption are used in the context of the TLS protocol version 1.2 (compliant
to Scenario 1 in FIPS 140-2 A.5). The module is compliant with NIST SP 800-52 and the mechanism for IV
generation is compliant with RFC 5288. The module ensures that it's strictly increasing and thus cannot
repeat. When the IV exhausts the maximum number of possible values for a given session key, the first
party, client or server, to encounter this condition may either trigger a handshake to establish a new
encryption key in accordance with RFC 5246, or fail. In either case, the module prevents and IV
duplication and thus enforces the security property.
The module supports internal IV generation by the module’s Approved DRBG. The DRBG seed is
generated inside the module’s physical boundary. The IV is 96-bits in length per NIST SP 800-38D,
Section 8.2.2 and FIPS 140-2 IG A.5 scenario 2.
The selection of the IV construction method is the responsibility of the user of this cryptographic
module. In approved mode, users of the module must not utilize GCM with an externally generated IV.
Per IG A.5, in the event module power is lost and restored the consuming application must ensure that
any of its AES-GCM keys used for encryption or decryption are re-distributed.
12.2.4 Usage of Triple-DES
In accordance with CMVP IG A.13, when operating in a FIPS approved mode of operation, the same
Triple-DES key shall not be used to encrypt more than 220
or 216
64-bit data blocks.
The TLS protocol governs the generation of the respective Triple-DES keys. Please refer to IETF RFC 5246
(TLS) for details relevant to the generation of the individual Triple-DES encryption keys. The user is
responsible for ensuring that the module limits the number of encrypted blocks with the same key to no
more than 220
when utilized as part of a recognized IETF protocol.
For all other uses of Triple-DES the user is responsible for ensuring that the module limits the number of
encrypted blocks with the same key to no more than 216
.
12.2.5 RSA and ECDSA Keys
The module allows the use of 1024 bits RSA keys for legacy purposes including signature generation,
which is disallowed to be used in FIPS Approved mode as per NIST SP 800-131A. Therefore, the
Solo.io 2022 Version 1.1
Public Material – May be reproduced only in its original entirety (without revision).
Page 22 of 24
cryptographic operations with the non-approved key sizes will result in the module operating in non-
Approved mode implicitly.
Approved algorithms shall not use the keys generated by the module’s non-Approved key generation
methods.
Solo.io 2020 Version 1.0
Public Material – May be reproduced only in its original entirety (without revision).
Page 23 of 24
13. References and Standards
The following Standards are referred to in this Security Policy.
Abbreviation Full Specification Name
FIPS 140-2 Security Requirements for Cryptographic modules, May 25 2001
FIPS 180-4 Secure Hash Standard (SHS)
FIPS 186-4 Digital Signature Standard (DSS)
FIPS 197 Advanced Encryption Standard
FIPS 198-1 The Keyed-Hash Message Authentication Code (HMAC)
IG Implementation Guidance for FIPS PUB 140-2 and the Cryptographic
Module Validation Program, January 11, 2016.
SP 800-38A Recommendation for Block Cipher Modes of Operation: Three Variants of
Ciphertext Stealing for CBC Mode
SP 800-38D
Recommendation for Block Cipher Modes of Operation: Galois/Counter
Mode (GCM) and GMAC
SP 800-38F Recommendation for Block Cipher Modes of Operation: Methods for Key
Wrapping
SP 800-67
Recommendation for the Triple Data Encryption Algorithm (TDEA)
Block Cipher
SP 800-56A
Recommendation for Pair-Wise Key Establishment Schemes Using Discrete
Logarithm Cryptography
SP 800-90A Recommendation for Random Number Generation Using Deterministic
Random Bit Generators
SP 800-52 Guidelines for the Selection, Configuration, and Use of Transport Layer
Security (TLS) Implementations
SP 800-133 Recommendation for Cryptographic Key Generation
SP 800-135 Recommendation for Existing Application-Specific Key Derivation Functions
Table 14 – References and Standards
14. Acronyms and Definitions
Acronym Definition
AES Advanced Encryption Standard
API Application Programming Interface
CBC Cipher-Block Chaining
CMAC Cipher-based Message Authentication Code
CMVP Crypto Module Validation Program
CO Cryptographic Officer
CPU Central Processing Unit
CSP Critical Security Parameter
CTR Counter-mode
CVL Component Validation List
DES Data Encryption Standard
DRAM Dynamic Random Access Memory
DRBG Deterministic Random Bit Generator
EC Elliptic Curve
ECB Electronic Code Book
EC DH Elliptic Curve Diffie-Hellman
ECDSA Elliptic Curve Digital Signature Authority
Solo.io 2020 Version 1.0
Public Material – May be reproduced only in its original entirety (without revision).
Page 24 of 24
Acronym Definition
FIPS Federal Information Processing Standards
GCM Galois/Counter Mode
GPC General Purpose Computer
HMAC key-Hashed Message Authentication Code
IG Implementation Guidance
IV Initialization Vector
KAT Known Answer Test
MAC Message Authentication Code
MD5 Message Digest algorithm MD5
N/A Non Applicable
NDRNG Non Deterministic Random Number Generator
OS Operating System
RSA Rivest Shamir Adleman
SHA Secure Hash Algorithm
Triple-DES Triple Data Encryption Standard
Table 15 – Acronyms and Definitions