Public Material – May be reproduced only in its original entirety (without revision). Page 1 of 24 Panasonic Corporation of North America Panasonic Corporation of North America Panasonic BoringCrypto Module Software Version: 7f02881e96e51f1873afcf384d02f782b48967ca FIPS 140-2 Non-Proprietary Security Policy Document Version: 1.1 Last Update: June 23, 2022 Prepared by: Gossamer Security Solutions 9176 Red Branch Road, Suite L Columbia, MD 21045 www.gossamersec.com Public Material – May be reproduced only in its original entirety (without revision). Page 2 of 24 Panasonic Corporation of North America 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: https://csrc.nist.gov/projects/cryptographic-module-validation-program About this Document This non-proprietary Cryptographic Module Security Policy for Panasonic BoringCrypto Module 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. Panasonic 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. Panasonic 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. Public Material – May be reproduced only in its original entirety (without revision). Page 3 of 24 Panasonic Corporation of North America 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 Public Material – May be reproduced only in its original entirety (without revision). Page 4 of 24 Panasonic Corporation of North America 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 Public Material – May be reproduced only in its original entirety (without revision). Page 5 of 24 Panasonic Corporation of North America 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..........................................................................................................24 List of Figures Figure 1 – Logical Boundary ..........................................................................................................................8 Public Material – May be reproduced only in its original entirety (without revision). Page 6 of 24 Panasonic Corporation of North America 1. Introduction Panasonic BoringCrypto Module (hereafter referred to as the “module”) from Panasonic Corporation of North America is a 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 7f02881e96e51f1873afcf384d02f782b48967ca. 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: # Operational Environment Processor Family 1 Android 11 on Panasonic TOUGHBOOK N1 Qualcomm SDM660 with PAA 2 Android 11 on Panasonic TOUGHBOOK N1 Qualcomm SDM660 without PAA Table 1 – Tested Operational Environments The cryptographic module is also supported on the following operating environments for which operational testing and algorithm testing was not performed: • Android 11 on Panasonic TOUGHBOOK S1, Qualcomm SDM660 (with PAA and without PAA) • Android 11 on Panasonic TOUGHBOOK A3, Qualcomm SDM660 (with PAA and without PAA) 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) 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 FIPS 140-2 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. Public Material – May be reproduced only in its original entirety (without revision). Page 7 of 24 Panasonic Corporation of North America 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 Public Material – May be reproduced only in its original entirety (without revision). Page 8 of 24 Panasonic Corporation of North America 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 boundary of the module is a single object file named bcm.o, which is linked into the libcrypto.so shared library. 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 Public Material – May be reproduced only in its original entirety (without revision). Page 9 of 24 Panasonic Corporation of North America 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 or allowed 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. 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 interfaces 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 Public Material – May be reproduced only in its original entirety (without revision). Page 10 of 24 Panasonic Corporation of North America 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 N/A N/A User, CO Execute Zeroization N/A All keys User, CO Write/Execute Show status N/A N/A 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: Service Approved Security Functions Roles Access rights to keys and/or CSPs Large integer operations None User, CO N/A Disable automatic generation of 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 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 Android 11. 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. Public Material – May be reproduced only in its original entirety (without revision). Page 11 of 24 Panasonic Corporation of North America 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/Size Use A2566 AES FIPS 197 SP 800-38A 128, 192, 256 CBC, ECB, CTR Encryption, Decryption A2566 AES SP 800-38D 128 and 256 GCM/GMAC Authenticated Encryption, Authenticated Decryption A2566 KTS SP 800-38F 128, 192, 256 KW, KWP Key Wrapping, Key Unwrapping A2566 CVL SP 800-135rev1 TLS 1.0/1.1 and 1.2 KDF (Note: The module supports FIPS 140-2 approved/allowed cryptographic algorithms for TLS 1.0, 1.1 and 1.2) Key Derivation A2566 DRBG SP 800-90Arev1 AES-256 CTR_DRBG Random Bit Generation A2566 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 A2566 HMAC FIPS 198-1 HMAC-SHA-1, HMAC- SHA-224, HMAC-SHA- 256, HMAC-SHA-384, HMAC-SHA-512 Generation, Authentication A2566 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 A2566 SHA FIPS 180-4 SHA-1, SHA-224, SHA- 256, SHA-384, SHA-512 Digital Signature Generation, Digital Signature Verification, non-Digital Signature Applications A2566 Triple-DES SP 800-67 SP 800-38A TCBC, TECB Encryption, Decryption Public Material – May be reproduced only in its original entirety (without revision). Page 12 of 24 Panasonic Corporation of North America 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) (Note: The elliptic curves utilized in the KAS-SSC shall be the validated NIST- recommended curves and shall provide a minimum of 112 bits of encryption strength) Key Agreement Scheme – Key Agreement Scheme Shared Secret Computation (KAS-SSC) per SP 800-56Arev3, Key Derivation per SP 800- 135 (CVL Cert. #A2566 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 (non-compliant) AES (non-compliant) ECDSA (non-compliant) RSA (non-compliant) POLYVAL Triple-DES (non-compliant) Table 9 – Non-Approved Algorithms Public Material – May be reproduced only in its original entirety (without revision). Page 13 of 24 Panasonic Corporation of North America 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 Key AES (128/192/256) 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 Table 10 – Keys and CSPs supported Public Material – May be reproduced only in its original entirety (without revision). Page 14 of 24 Panasonic Corporation of North America 9.5 Public Keys 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 Table 11 – Public keys supported 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. All CSPs can be zeroized by power cycling or by rebooting the host test platform. 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. Public Material – May be reproduced only in its original entirety (without revision). Page 15 of 24 Panasonic Corporation of North America The module implements the following power-on self-tests: Type Test Integrity Test HMAC-SHA-256 Known Answer Test AES KAT (encryption and decryption. Key size: 128-bits) AES-GCM 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 By default, all power up self-tests are executed at module initialization. The module can be configured to only run the integrity test on subsequent instantiations by setting the environmental variable BORINGSSL_FIPS_SELF_TEST_FLAG_FILE, as allowed by FIPS 140-2 IG 9.11. If configured, after the self- tests have passed the module creates a temporary file named after the module’s HMAC-SHA-256 integrity value (this value does not persist across power cycles). This file is checked for existence whenever subsequent instantiations of the module are initialized. If it exists, only the integrity test is run. If the environmental variable is not set, the file does not exist, or the file cannot be accessed for any reason, the entire set of power-on self-tests (KATs and integrity test) are run. The 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. 11. Mitigation of other Attacks The module is not designed to mitigate against attacks which are outside of the scope of FIPS 140-2. Public Material – May be reproduced only in its original entirety (without revision). Page 16 of 24 Panasonic Corporation of North America 12 Guidance and Secure Operation 12.1 Installation Instructions A Linux workstation with the following tools is required to build and compile the module: • git 2.23 or later (https://git-scm.com/download/linux) • base64, curl, sha256sum (these should come with the Linux installation) Once a Linux workstation with the above tools has been obtained, issue the following commands to download and verify repo and the manifest: Manually validate that the output from the final command indicates the following expected hash values for each of these files: c733977f4e7acf5fc0fb1e5c5b85ad20d0ae21c29c76ae26a0802f15c14290cb default.xml 0cf5f52bcafb8e1d3ba0271b087312f6117b824af272bedd4ee969d52363a86b repo The module can be obtained by issuing the following commands: Once downloaded, the module can be built using the following commands: Upon completion of the build process, the module can be deployed to the Android device over ADB and have its FIPS status verified by issuing the following commands: The module will print “1” if it is in a FIPS 140-2 validated mode of operation. . build/envsetup.sh lunch aosp_arm64-userdebug m clean m -j 20 adb bssl curl -L https://android.googlesource.com/platform/manifest/+/refs/heads/android-11.0.0_r43/default.xml > default.xml curl 'https://gerrit.googlesource.com/git-repo/+/e778e57f11/repo?format=TEXT' | base64 -d > ~/repo chmod u+x ~/repo sha256sum ~/default.xml ~/repo ~/repo init -u https://android.googlesource.com/platform/manifest.git --depth 1 ~/repo init -m ~/default.xml ~/repo sync -q -c -j 20 $ANDROID_HOST_OUT/bin/adb devices -l $ANDROID_HOST_OUT/bin/adb push $ANDROID_PRODUCT_OUT/system/bin/bssl /data/local/tmp $ANDROID_HOST_OUT/bin/adb push $ANDROID_PRODUCT_OUT/system/lib64/lib{crypto,ssl}.so /data/local/tmp $ANDROID_HOST_OUT/bin/adb shell LD_LIBRARY_PATH=/data/local/tmp /data/local/tmp/bssl isfips Public Material – May be reproduced only in its original entirety (without revision). Page 17 of 24 Panasonic Corporation of North America 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’s IV is generated internally 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 Public Material – May be reproduced only in its original entirety (without revision). Page 18 of 24 Panasonic Corporation of North America cryptographic operations with the non-approved key sizes will result in the module operating in non- Approved mode implicitly. The elliptic curves utilized shall be the validated NIST-recommended curves and shall provide a minimum of 112 bits of encryption strength. Non-approved cryptographic algorithms shall not share the same key or CSP as an approved algorithm. As such approved algorithms shall not use the keys generated by the module’s non-Approved key generation methods or the converse. Public Material – May be reproduced only in its original entirety (without revision). Page 19 of 24 Panasonic Corporation of North America 12. 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 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 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 800-56A Recommendation for Pair-Wise Key Establishment Schemes Using Discrete Logarithm Cryptography SP 800-67 Recommendation for the Triple Data Encryption Algorithm (TDEA) Block Cipher SP 800-90A Recommendation for Random Number Generation Using Deterministic Random Bit Generators SP 800-131A Transitioning the Use of Cryptographic Algorithms and Key Lengths SP 800-133 Recommendation for Cryptographic Key Generation SP 800-135 Recommendation for Existing Application-Specific Key Derivation Functions Table 14 – References and Standards 13. Acronyms and Definitions Acronym Definition ADB Android Debug Bridge AES Advanced Encryption Standard API Application Programming Interface CAVP Cryptographic Algorithm Validation Program CBC Cipher-Block Chaining CCCS Canadian Centre for Cyber Security CFB Cipher Feedback CKG Cooperative Key Generation CMVP Crypto Module Validation Program CO Cryptographic Officer CPU Central Processing Unit CRNGT Continuous Random Number Generator Test CSP Critical Security Parameter CTR Counter-mode CVL Component Validation List DEP Default Entry Point DES Data Encryption Standard Public Material – May be reproduced only in its original entirety (without revision). Page 20 of 24 Panasonic Corporation of North America Acronym Definition DH Diffie-Hellman DRBG Deterministic Random Bit Generator DSS Digital Signature Standard EC Elliptic Curve ECB Electronic Code Book ECC Elliptic Curve Cryptography EC DH Elliptic Curve Diffie-Hellman ECDSA Elliptic Curve Digital Signature Authority EMC Electromagnetic Compatibility EMI Electromagnetic Interference FCC Federal Communications Commission FIPS Federal Information Processing Standards GCM Galois/Counter Mode GMAC Galois Message Authentication Code GPC General Purpose Computer GPOS General Purpose Operating System HMAC Key-Hashed Message Authentication Code IETF Internet Engineering Task Force IG Implementation Guidance IV Initialization Vector KAS Key Agreement Scheme KAT Known Answer Test KDF Key Derivation Function KTS Key Transport Scheme KW Key Wrap KWP Key Wrap with Padding LLC Limited Liability Company MAC Message Authentication Code MD4 Message Digest algorithm MD4 MD5 Message Digest algorithm MD5 N/A Not-Applicable NIST National Institute of Standards and Technology NDRNG Non-Deterministic Random Number Generator NVLAP National Voluntary Lab Accreditation Program OFB Output Feedback PAA Processor Algorithm Accelerator RAM Random Access Memory RFC Request For Comment RSA Rivest Shamir Adleman SHA Secure Hash Algorithm SHS Secure Hash Standard SP Special Publication Public Material – May be reproduced only in its original entirety (without revision). Page 21 of 24 Panasonic Corporation of North America Acronym Definition SSL Secure Socket Layer TCBC Triple-DES Cipher-Block Chaining TDEA Triple Data Encryption Algorithm TECB Triple-DES Electronic Code Book TLS Transport Layer Security Triple-DES Triple Data Encryption Standard Table 15 – Acronyms and Definitions