Kiteworks Cryptographic Module

Certificate

Derived Review-Risk Graph (review prompts, not findings)

flowchart LR
  %% Deterministic review-risk graph for Kiteworks Cryptographic Module
  %% Review prompts and evidence gaps, NOT vulnerability findings.
  subgraph CMVP["CMVP-disclosed clues"]
    C2["[low] Firmware update / recovery<br/>/ rollback (referenced in<br/>text)<br/><i>Recovery</i>"]
    C3["[low] Self-test / status surface<br/>(referenced in text)<br/><i>Self-Test<br/>Unauth<br/>Status Output</i>"]
    C5["[low] Protocol / secure-channel<br/>references (may be KDF<br/>names, not a live channel)<br/><i>TLS<br/>SSH<br/>DTLS</i>"]
    C6["[low] Operating system / runtime<br/>referenced (boundary<br/>membership not asserted)<br/><i>linux<br/>application</i>"]
  end
  subgraph Inference["Derived inference"]
    I2["Possible only, trusted<br/>code is reachable through<br/>update and recovery paths."]
    I3["Possible only, some<br/>services may process input<br/>before, or without,<br/>operator authentication."]
    I5["Possible only, a protocol<br/>is referenced, but whether<br/>it is a live channel or<br/>only a KDF/algorithm name<br/>is unconfirmed."]
    I6["Possible only, a<br/>runtime/OS is referenced,<br/>but its membership in the<br/>cryptographic boundary is<br/>not established."]
  end
  subgraph Risk["Reviewer question"]
    R2["Are update images<br/>authenticated before<br/>parsing, and are<br/>downgrade/rollback paths<br/>constrained?"]
    R3["Can unauthenticated<br/>services leak state,<br/>consume resources, or<br/>transition security state?"]
    R5["If a live TLS/SSH/IKE<br/>channel exists, could<br/>library CVEs apply, or is<br/>this only a<br/>KDF/documentation name?"]
    R6["If the OS/runtime is<br/>in-boundary, could its<br/>CVEs be hidden by<br/>firmware-only versioning?"]
  end
  subgraph Evidence["Evidence needed to close"]
    E2["confirm the disclosure<br/>itself (keyword hit,<br/>context unverified) ·<br/>update image format ·<br/>signature-before-parse<br/>proof · anti-rollback /<br/>downgrade policy"]
    E3["confirm the disclosure<br/>itself (keyword hit,<br/>context unverified) ·<br/>pre-auth reachability<br/>matrix · rate limits and<br/>output redaction ·<br/>abuse-case tests"]
    E5["confirm the disclosure<br/>itself (keyword hit,<br/>context unverified) ·<br/>library identity and<br/>version ·<br/>certificate-validation<br/>behaviour · protocol-CVE<br/>disposition"]
    E6["confirm the disclosure<br/>itself (keyword hit,<br/>context unverified) ·<br/>runtime identity and<br/>config · kernel/runtime<br/>hardening profile ·<br/>patch/backport manifest"]
  end
  C2 --> I2 --> R2 --> E2
  C3 --> I3 --> R3 --> E3
  C5 --> I5 --> R5 --> E5
  C6 --> I6 --> R6 --> E6
  classDef clue fill:#eef3f9,stroke:#6f7f91,color:#1f3a5f;
  classDef infer fill:#fff7e6,stroke:#b98500,color:#6b4e00;
  classDef risk fill:#fbe9e9,stroke:#b02a2a,color:#7a1f1f;
  classDef evidence fill:#e6f4ea,stroke:#1e7d34,color:#14532d;
  class C2,C3,C5,C6 clue;
  class I2,I3,I5,I6 infer;
  class R2,R3,R5,R6 risk;
  class E2,E3,E5,E6 evidence;

flowchart LR
  %% Deterministic clue tier for Kiteworks Cryptographic Module
  %% confidence: high = structured record field; medium = structured but soft; low (dashed) = bare keyword hit, context unverified
  subgraph CMVP["CMVP-disclosed clues (deterministic)"]
    C2["[low] Firmware update / recovery / rollback (referenced in text)<br/><i>Recovery</i><br/>src: text:keyword"]
    C3["[low] Self-test / status surface (referenced in text)<br/><i>Self-Test<br/>Unauth<br/>Status Output</i><br/>src: text:keyword"]
    C5["[low] Protocol / secure-channel references (may be KDF names, not a live channel)<br/><i>TLS<br/>SSH<br/>DTLS</i><br/>src: text:keyword"]
    C6["[low] Operating system / runtime referenced (boundary membership not asserted)<br/><i>linux<br/>application</i><br/>src: text:keyword"]
  end
  classDef clueHigh fill:#eef3f9,stroke:#2f6fb0,stroke-width:2px,color:#1f3a5f;
  classDef clueMedium fill:#eef3f9,stroke:#6f7f91,color:#1f3a5f;
  classDef clueLow fill:#f7f7f7,stroke:#999,stroke-dasharray:4 4,color:#444;
  class C2,C3,C5,C6 clueLow;

Security Policy, page by page

Kiteworks Kiteworks Cryptographic Module Document Version 1.1 December 1, 2025 Prepared for: Prepared by: Kiteworks KeyPair Consulting Inc.

San Mateo, CA 94404 San Luis Obispo, CA 93401 kiteworks.com keypair.us +1 805.316.5024

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Table of Contents

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

FIPS 140-3 Security Policy Kiteworks Cryptographic Module List of Tables List of Figures

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

Module meets FIPS 140-3 overall Level 1 requirements, with security levels as shown in Section 1.2. In accordance with AS02.05, ISO/IEC 19790:2012 §7.7 Physical Security is optional and does not apply to the Module.

Section Title Security Level

Overall Level 1 Table 1: Security Levels

Purpose and Use: The Module is a cryptographic software library, intended for use by US and Canadian Federal agencies and other markets that require FIPS 140-3 validated cryptographic functionality. The Module design corresponds to the Module security rules. Security rules enforced by the Module are described in the appropriate context of this document. Module Type: Software Module Embodiment: Multi-Chip Standalone

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Cryptographic Boundary: Figure 1 depicts the Module operational environment, with the cryptographic boundary highlighted in red inclusive of all Module entry points (API calls). The Module is defined as a Software module per AS02.03. The pre-operational approved integrity test is performed over all components within the cryptographic boundary. Tested Operational Environment’s Physical Perimeter (TOEPP): The General Purpose Computer is the TOEPP. Figure 1: Block Diagram

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

Tested Module Identification

• Software, Firmware, Hybrid (Executable Code Sets): Package or File Name Software/ Firmware Version Features Integrity Test fips.so 3.0.10 with KP_1.2 N/A HMAC-SHA2-256 #A4481 over the complete module file image Table 2: Tested Module Identification
• Software, Firmware, Hybrid (Executable Code Sets) Tested Operational Environments - Software, Firmware, Hybrid: Operating Hardware Platform Processors PAA/PAI Hypervisor Version(s) System or Host OS Rocky Linux 8 Lenovo ThinkPad P14s Gen 1 Intel® Core™ i7- 10510U (Comet Lake) Yes 3.0.10 with KP_1.2 Rocky Linux 8 Lenovo ThinkPad P14s Gen 1 Intel® Core™ i7- 10510U (Comet Lake) No 3.0.10 with KP_1.2 Table 3: Tested Operational Environments - Software, Firmware, Hybrid

Modes List and Description: Mode Description Type Status Name Indicator Nominal Approved mode of operation Approved Table 4: Modes List and Description The Module only supports an Approved mode of operation. The conditions for using the Module in the Approved mode of operation are:

1. Installation of the Module as described in Section 11.1 results in the settings described below, which are required for operation in the Approved mode: a. security-checks = 1 Enforce minimum key strengths and approved curve names. b. allow-plaintext-csp-output = 1 Enforce the AS09.16 and AS09.17 requirement for a second independent action to output CSPs as a result of calls that produce CSPs, such as key generation, key unwrap (or decapsulate) and shared secret calculation. c. conditional-errors = 1 Enforce the Module entering the error state on conditional test errors such as PCT failure.
2. The Module is a cryptographic library used by a calling application. The calling application is responsible for: a. Use of the primitives in the correct sequence.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module b. Use of keys in accordance with SP 800-140D Rev. 2 (as the keys used by the Module for cryptographic purposes are provided over the call stack by the calling application). c. Use of a SP 800-90B compliant entropy source outside the Module boundary with at least 256 bits of security strength. Entropy is supplied to the Module via callback functions. The callback functions shall return an error if the minimum entropy strength cannot be met.

Approved Algorithms: Algorithm CAVP Cert Properties Reference AES-CBC A4481 - SP 800-38A AES-CBC-CS1 A4481 - SP 800-38A AES-CBC-CS2 A4481 - SP 800-38A AES-CBC-CS3 A4481 - SP 800-38A AES-CCM A4481 - SP 800-38C AES-CFB1 A4481 - SP 800-38A AES-CFB128 A4481 - SP 800-38A AES-CFB8 A4481 - SP 800-38A AES-CMAC A4481 - SP 800-38B AES-CTR A4481 - SP 800-38A AES-ECB A4481 - SP 800-38A AES-GCM A4481 - SP 800-38D AES-GMAC A4481 - SP 800-38D AES-KW A4481 - SP 800-38F AES-KWP A4481 - SP 800-38F AES-OFB A4481 - SP 800-38A AES-XTS Testing Revision 2.0 A4481 - SP 800-38E Counter DRBG A4481 - SP 800-90A Rev. 1 DSA KeyGen (FIPS186-4) A4481 - FIPS 186-4 DSA PQGGen (FIPS186-4) A4481 - FIPS 186-4 DSA PQGVer (FIPS186-4) A4481 - FIPS 186-4 DSA SigGen (FIPS186-4) A4481 - FIPS 186-4 DSA SigVer (FIPS186-4) A4481 - FIPS 186-4 ECDSA KeyGen (FIPS186-4) A4481 - FIPS 186-4 ECDSA KeyVer (FIPS186-4) A4481 - FIPS 186-4 ECDSA SigGen (FIPS186-4) A4481 - FIPS 186-4 ECDSA SigVer (FIPS186-4) A4481 - FIPS 186-4 EDDSA KeyGen A4481 - FIPS 186-5

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Algorithm CAVP Cert Properties Reference EDDSA KeyVer A4481 - FIPS 186-5 EDDSA SigGen A4481 - FIPS 186-5 EDDSA SigVer A4481 - FIPS 186-5 Hash DRBG A4481 - SP 800-90A Rev. 1 HMAC DRBG A4481 - SP 800-90A Rev. 1 HMAC-SHA-1 A4481 - FIPS 198-1 HMAC-SHA2-224 A4481 - FIPS 198-1 HMAC-SHA2-256 A4481 - FIPS 198-1 HMAC-SHA2-384 A4481 - FIPS 198-1 HMAC-SHA2-512 A4481 - FIPS 198-1 HMAC-SHA2-512/224 A4481 - FIPS 198-1 HMAC-SHA2-512/256 A4481 - FIPS 198-1 HMAC-SHA3-224 A4481 - FIPS 198-1 HMAC-SHA3-256 A4481 - FIPS 198-1 HMAC-SHA3-384 A4481 - FIPS 198-1 HMAC-SHA3-512 A4481 - FIPS 198-1 KAS-ECC CDH-Component SP800-56Ar3 (CVL) A4481 - SP 800-56A Rev. 3 KAS-ECC-SSC Sp800-56Ar3 A4481 - SP 800-56A Rev. 3 KAS-FFC-SSC Sp800-56Ar3 A4481 - SP 800-56A Rev. 3 KAS-IFC-SSC A4481 - SP 800-56A Rev. 3 KDA HKDF SP800-56Cr2 A4481 - SP 800-56C Rev. 2 KDA OneStep SP800-56Cr2 A4481 - SP 800-56C Rev. 2 KDA TwoStep SP800-56Cr2 A4481 - SP 800-56C Rev. 2 KDF ANS 9.42 (CVL) A4481 - SP 800-135 Rev. 1 KDF ANS 9.63 (CVL) A4481 - SP 800-135 Rev. 1 KDF SP800-108 A4481 - SP 800-108 Rev. 1 KDF SSH (CVL) A4481 - SP 800-135 Rev. 1 KMAC-128 A4481 - SP 800-185 KMAC-256 A4481 - SP 800-185 KTS-IFC A4481 - SP 800-56B Rev. 2 PBKDF A4481 - SP 800-132 RSA KeyGen (FIPS186-4) A4481 - FIPS 186-4 RSA SigGen (FIPS186-4) A4481 - FIPS 186-4 RSA SigGen (FIPS186-5) A4481 - FIPS 186-5 RSA Signature Primitive (CVL) A4481 - FIPS 186-4

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Algorithm CAVP Cert Properties Reference RSA SigVer (FIPS186-4) A4481 - FIPS 186-4 RSA SigVer (FIPS186-5) A4481 - FIPS 186-5 Safe Primes Key Generation A4481 - SP 800-56A Rev. 3 Safe Primes Key Verification A4481 - SP 800-56A Rev. 3 SHA-1 A4481 - FIPS 180-4 SHA2-224 A4481 - FIPS 180-4 SHA2-256 A4481 - FIPS 180-4 SHA2-384 A4481 - FIPS 180-4 SHA2-512 A4481 - FIPS 180-4 SHA2-512/224 A4481 - FIPS 180-4 SHA2-512/256 A4481 - FIPS 180-4 SHA3-224 A4481 - FIPS 202 SHA3-256 A4481 - FIPS 202 SHA3-384 A4481 - FIPS 202 SHA3-512 A4481 - FIPS 202 SHAKE-128 A4481 - FIPS 202 SHAKE-256 A4481 - FIPS 202 TLS v1.2 KDF RFC7627 (CVL) A4481 - SP 800-135 Rev. 1 TLS v1.3 KDF (CVL) A4481 - SP 800-135 Rev. 1 Table 5: Approved Algorithms Vendor-Affirmed Algorithms: Name Properties Implementation Reference CKG Section 4 KeyPair FIPS Provider for OpenSSL 3 NIST, SP 800-133 Rev. 2 CKG Section 5 KeyPair FIPS Provider for OpenSSL 3 NIST, SP 800-133 Rev. 2 CKG Section 6.2 KeyPair FIPS Provider for OpenSSL 3 NIST, SP 800-133 Rev. 2 Hash DRBG with SHA3-256, SHA3-512 KeyPair FIPS Provider for OpenSSL 3 NIST, SP 800-90A Rev. 1 HMAC DRBG with SHA3-256, SHA3-512 KeyPair FIPS Provider for OpenSSL 3 NIST, SP 800-90A Rev. 1 Table 6: Vendor-Affirmed Algorithms Non-Approved, Allowed Algorithms: N/A for this module. Non-Approved, Allowed Algorithms with No Security Claimed: N/A for this module.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Non-Approved, Not Allowed Algorithms: N/A for this module.

Name Type Description Properties Algorithms Cipher (Unauth) BC-UnAuth AES ciphers AES-CBC: (A4481) AES-CBC-CS1: (A4481) AES-CBC-CS2: (A4481) AES-CBC-CS3: (A4481) AES-CFB1: (A4481) AES-CFB128: (A4481) AES-CFB8: (A4481) AES-CTR: (A4481) AES-ECB: (A4481) AES-OFB: (A4481) AES-XTS Testing Revision 2.0: (A4481) Cipher (Auth) BC-Auth Authenticated ciphers AES-CCM: (A4481) AES-GCM: (A4481) AES-KW: (A4481) AES-KWP: (A4481) CKG Section 4 CKG Using the Output of a Random CKG Section 4: () Bit Generator CKG Section 5 CKG Generation of Key Pairs for CKG Section 5: () Asymmetric-Key Algorithms CKG Section 6.2 CKG Derivation of Symmetric Keys CKG Section 6.2: () Key agreement KAS-SSC Key agreement KAS:KAS-ECC-SSC provides KAS-ECC CDH-Component between 112 and 256 bits of SP800-56Ar3: (A4481) encryption strength; KAS-FFC- KAS-ECC-SSC Sp800-56Ar3: SSC provides between 112 and (A4481)

KAS-IFC-SSC provides between (A4481)

strength Key derivation KAS-135KDF KAS-KDF HKDF SP800-56Cr2: KAS-56CKDF (A4481) KBKDF KAS-KDF OneStep SP800-56Cr2: PBKDF (A4481) KAS-KDF TwoStep SP800-56Cr2:

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Type Description Properties Algorithms (A4481) KDF ANS 9.42: (A4481) KDF ANS 9.63: (A4481) KDF SP800-108: (A4481) KDF SSH: (A4481) PBKDF: (A4481) TLS v1.2 KDF RFC7627: (A4481) TLS v1.3 KDF: (A4481) Key management ECC AsymKeyPair-KeyGen ECDSA KeyGen (FIPS186-4): AsymKeyPair-KeyVer (A4481) ECDSA KeyVer (FIPS186-4): (A4481) Key management Edwards AsymKeyPair-KeyGen EDDSA KeyGen: (A4481) AsymKeyPair-KeyVer EDDSA KeyVer: (A4481) Key management FFC AsymKeyPair-KeyGen DSA KeyGen (FIPS186-4): (A4481) DSA PQGGen (FIPS186-4): (A4481) DSA PQGVer (FIPS186-4): (A4481) Safe Primes Key Generation: (A4481) Safe Primes Key Verification: (A4481) Key management IFC AsymKeyPair-KeyGen RSA KeyGen (FIPS186-4): (A4481) Key transport KTS-Encap KTS:2048, 3072, 4096 or 6144- KTS-IFC: (A4481) bit keys provide between 112 and 176 bits of encryption strength KTS (Cipher w/ CMAC, GMAC, BC-Auth SP 800-38F Section 3.1 KTS:128, 192 or 256-bit keys AES-CBC: (A4481) HMAC, KMAC) BC-UnAuth Provisions provide between 128 and 256 AES-CBC-CS1: (A4481) MAC bits of encryption strength AES-CBC-CS2: (A4481) AES-CBC-CS3: (A4481) AES-CFB1: (A4481) AES-CFB128: (A4481) AES-CFB8: (A4481) AES-CTR: (A4481) AES-ECB: (A4481)

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Type Description Properties Algorithms AES-OFB: (A4481) AES-CCM: (A4481) AES-GCM: (A4481) AES-GMAC: (A4481) AES-CMAC: (A4481) HMAC-SHA-1: (A4481) HMAC-SHA2-224: (A4481) HMAC-SHA2-256: (A4481) HMAC-SHA2-384: (A4481) HMAC-SHA2-512: (A4481) HMAC-SHA2-512/224: (A4481) HMAC-SHA2-512/256: (A4481) HMAC-SHA3-224: (A4481) HMAC-SHA3-256: (A4481) HMAC-SHA3-384: (A4481) HMAC-SHA3-512: (A4481) KMAC-128: (A4481) KMAC-256: (A4481) KTS (AES KW, KWP) BC-Auth KTS:128, 192 or 256-bit keys AES-KW: (A4481) provide between 128 and 256 AES-KWP: (A4481) bits of encryption strength MAC AES (CMAC, GMAC) MAC AES-GMAC: (A4481) AES-CMAC: (A4481) MAC HMAC MAC HMAC-SHA-1: (A4481) HMAC-SHA2-224: (A4481) HMAC-SHA2-256: (A4481) HMAC-SHA2-384: (A4481) HMAC-SHA2-512: (A4481) HMAC-SHA2-512/224: (A4481) HMAC-SHA2-512/256: (A4481) HMAC-SHA3-224: (A4481) HMAC-SHA3-256: (A4481) HMAC-SHA3-384: (A4481) HMAC-SHA3-512: (A4481) MAC KMAC (XOF) XOF KMAC-128: (A4481) KMAC-256: (A4481) Message Digest SHA SHA-1: (A4481) SHA2-224: (A4481) SHA2-256: (A4481)

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Type Description Properties Algorithms SHA2-384: (A4481) SHA2-512: (A4481) SHA2-512/224: (A4481) SHA2-512/256: (A4481) SHA3-224: (A4481) SHA3-256: (A4481) SHA3-384: (A4481) SHA3-512: (A4481) Message Digest (XOF SHAKE) XOF SHAKE-128: (A4481) SHAKE-256: (A4481) Random DRBG Counter DRBG: (A4481) Hash DRBG: (A4481) HMAC DRBG: (A4481) Signature DSA DigSig-SigGen DSA SigGen (FIPS186-4): DigSig-SigVer (A4481) DSA SigVer (FIPS186-4): (A4481) Signature ECDSA DigSig-SigGen ECDSA SigGen (FIPS186-4): DigSig-SigVer (A4481) ECDSA SigVer (FIPS186-4): (A4481) Signature EDDSA DigSig-SigGen EDDSA SigGen: (A4481) DigSig-SigVer EDDSA SigVer: (A4481) Signature RSA DigSig-SigGen RSA SigGen (FIPS186-4): DigSig-SigVer (A4481) RSA SigGen (FIPS186-5): (A4481) RSA Signature Primitive: (A4481) RSA SigVer (FIPS186-4): (A4481) RSA SigVer (FIPS186-5): (A4481) Table 7: Security Function Implementations

AES-GCM: The Module supports internal IV generation using the Approved DRBG. The IV is at least 96 bits in length per SP 800-38D Section 8.2.2, and the Approved DRBG generates outputs such that the (key, IV) pair collision probability is less than 2-32 per SP 800-38D Section 8.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module AES-GCM IVs shall be used in compliance with FIPS 140-3 IG C.H scenario 1a (TLS/DTLS 1.2, per RFC 5288), 1d (SSHv2, per RFC 5647) and 5 (TLS 1.3, per RFC 8446). The Module is compatible with TLS/DTLS 1.2 protocol and provides the primitives to support the AES GCM ciphersuites from SP 800-52 Rev. 1 Section 3.3.1. The Module’s implementation of AES-GCM is used together with one or more applications outside the Module’s cryptographic boundary that implement the specified protocols; these protocols have not been reviewed or tested by the CAVP and CMVP. In each of the protocols, if the Module’s power is lost and then restored, the key used for the AES GCM encryption/decryption shall be re-distributed. This condition is not enforced by the Module but is met implicitly. The Module does not retain any state across reset or power-cycles: AES-GCM key/IVs are not stored in non-volatile persistent memory (i.e., disk), hence no re-connection can occur without a fresh key establishment operation and the associated SSPs. The Module explicitly ensures that the counter (the nonce_explicit part of the IV) does not exhaust the maximum number of possible values of 264-1 for a given session key. If this exhaustion condition is observed, the Module returns an error indication to the calling application, which will then need to either abort the connection, or trigger a handshake to establish a new encryption key. XTS-AES: In accordance with SP 800-38E, the XTS-AES algorithm is to be used for confidentiality on storage devices. The Module complies with FIPS 140-3 IG C.I by:

• Generating Key_1 and Key_2 independently according to the rules for component symmetric keys from SP 800-133 Rev. 2, Section 6.3.
• Explicitly checking that Key_1 ≠ Key_2 before using the keys in the XTS-AES algorithm to process data with them. Key Agreement: The Module implements the following Approved key agreement methods which have been CAVP tested and validated:
• KAS-ECC-SSC per SP 800-56A Rev. 3 (FIPS 140-3 IG D.F Scenario 2, path 1).
• KAS-FFC-SSC per SP 800-56A Rev. 3 (FIPS 140-3 IG D.F Scenario 2, path 1).
• KAS-IFC-SSC per SP 800-56B Rev. 2 (FIPS 140-3 IG D.F Scenario 1, path 1). The Module obtains the FIPS 140-3 IG D.F required key agreement assurances:
• SP 800-56A Rev. 3 in accordance with Section 5.6.2.
• SP 800-56B Rev. 2 in accordance with Section 6.4. PBKDF: The implemented PBKDF uses Option 1a specified in SP 800-132 Section 5.4. FIPS 140-3 IG D.N SP 800-132 Password-Based Key Derivation for Storage Applications notes that: The strength of the Data Protection Key is based on the strength of the Password and/or Passphrase used in key derivation. SP 800-132 does not impose any strictly defined requirements on the strength of a password. It says that “passwords should be strong enough so that it is infeasible for attackers to get access by guessing a password.” The choice to use the PBKDF with a password or passphrase is entirely outside the scope of the Module, managed by the calling application
• and potentially would need to accommodate not only application-level considerations, but end use environment considerations and policies as well. As examples, the end use environment may impose policies to reject words found in a dictionary, to use specific types of characters (upper case, lower case, punctuation) and

FIPS 140-3 Security Policy Kiteworks Cryptographic Module so on. The Module does not enforce a reduced character space (referring to the set of allowed characters), and as such, any policy to restrict the character space weakens the potential strength of the derived Data Protection Key (KD_PW_PBKDF). In the summary of password strength guidance below, the term useful refers to characters which are not simply padding the string, for example with some combination of repetitive characters

• such means of skirting organizational policies are not recommended. The phrase character space refers to the set of characters that a password or passphrase is constrained to. The printable character space is assumed to be 95 printable characters. Integrators making use of PBKDF with this Module shall determine password policy and input length based on the intended output key size and strength, taking into consideration the probability of guessing KD_PW_PBKDF. The following examples are provided to guide parameter selection:
• 1/(2256) = 8.6E-78 for a 32-byte KD_PW_PBKDF field with no character space restriction (equivalent to a 256-bit symmetric key).
• 1/(9518) = 2.5E-36 for KD_PW_PBKDF with 18 useful printable characters (better than a 112-bit symmetric key, i.e. 1/(2112) = 1.9E-34).
• 1/(9520) = 3.4E-48 for KD_PW_PBKDF with 20 useful printable characters (better than a 128-bit symmetric key, i.e. 1/(2128) = 2.9E-39).
• 1/(9540) = 7.8E-80 for KD_PW_PBKDF with 40 useful printable characters (better than a 256-bit symmetric key, i.e. 1/(2256) = 8.6E-78). In accordance with SP 800-132 and FIPS 140-3 IG D.N, keys derived from passwords are only to be used in storage applications. The iteration count shall be selected as large as possible, as long as the time required to generate the key using the entered password is acceptable for the users. The Module enforces the following SP 800-132 compliance checks:
• The iteration count is at least 1000.
• The salt length is at least 128 bits.
• The derived key length is at least 112 bits. RSA: The Module complies with FIPS 140-3 IG C.F as follows:
• RSA Key Generation, Signature Generation and Signature Verification have been tested and validated with all implemented modulus lengths for which CAVP testing is available: k = 1024 (legacy Signature Verification only), k = 2048, k = 3072, and k = 4096.
• The Module also supports RSA Key Generation, Signature Generation and Signature Verification with modulus lengths for which CAVP testing is not available: k > 4096. SHA-3 and SHAKE: The Module complies with FIPS 140-3 IG C.C as follows:
• All implemented SHA-3 and SHAKE functions have been tested and validated on all of the Module’s operating environments.
• Vendor affirmation is claimed for use of the SHA3-256 and SHA3-512 hash functions as part of the Hash DRBG and HMAC DRBG, for which CAVP testing with SHA-3 is not available.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

N/A for this module. The calling application is responsible for use of a SP 800-90B compliant entropy source outside the Module boundary providing at least 256 bits of security strength. Entropy is supplied to the Module via callback functions. The following caveat applies per FIPS 140-3 IG 9.3.A: No assurance of the minimum strength of generated SSPs (e.g., keys).

The Module:

• Produces random values in accordance with SP 800-133 Rev. 2 Section 4, in that the DRBG output is provided directly as the random output.
• Does not provide any service beyond random value generation for symmetric key generation. SSPs used with symmetric key algorithms are provided by the calling application.
• Produces asymmetric keys in accordance with SP 800-133 Rev. 2 Section 5, in that all asymmetric keys generated by the Module (the Key management service) provide the output of the approved key generation algorithm with no post-processing or manipulation of the generated key pairs. As noted in the previous item, random values used in the asymmetric key generation algorithms are direct outputs of the DRBG. Keys produced by the Module use an internal Counter DRBG for which the minimum key size and equivalent security strength is 128 bits.
• Supports symmetric key derivation in accordance with SP 800-133 Rev. 2 Section 6.2, using the approved and CAVP listed KDF algorithms.

The Module implements key agreement methods compliant with FIPS 140-3 IG D.F and key transport methods compliant with FIPS 140-3 IG D.G. Strengths are provided in Section 2.6.

The Module conforms to FIPS 140-3 IG D.C References to the Support of Industry Protocols: while it provides SP 800-56A Rev. 3 conformant schemes and API entry points oriented to TLS usage, the Module does not contain the full implementation of TLS. The following caveat is required: No parts of the TLS protocol, other than the approved cryptographic algorithms and the KDFs, have been tested by the CAVP and CMVP.

Physical Port Logical Data That Passes Interface(s) N/A (API - input) Control Input API input: stack frame including non-sensitive parameters. Data Input N/A (API - output) Data Output API output: output parameters and return value resulting from call execution. Status Output

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Table 8: Ports and Interfaces The Module does not interact with physical ports. The Control Output interface is not applicable, as the Module does not control other components.

Name Type Operator Type Authentication Methods CO Role CO Table 9: Roles The Module supports the mandatory Cryptographic Officer (CO) operational role only (implicitly identified), and does not support a maintenance role or a bypass capability. The Module does not provide an authentication or identification method of its own. The CO role is assumed by meeting the conditions of Section 11 of this document and in associated Guidance Documentation.

Name Description Indicator Inputs Outputs Security SSP Access Functions Cipher Encrypt or decrypt data, FIPS_OK Encryption or decryption key; Status return. Plaintext Cipher (Unauth) CO including AEAD modes (CCM, plaintext or ciphertext data; flags. or ciphertext data. Cipher (Auth) - SC_EDK_AES: W,E GCM). - SC_EDK_XTS: W,E Get capabilities Reports information on the FIPS_OK Provider context, capability, Description of requested capabilities. callback pointer and arguments. capabilities. Initialize Module initialization, FIPS_OK Core handle, dispatch in and out, Initialization status (1 = Random CO including instantiation of the provider context. pass, 0 = fail). MAC HMAC - DRBG_EI: W,E,Z opaque (managed within the - DRBG_Seed: G,E,Z module) Counter DRBG - DRBG_Key: G,W,E instance. - DRBG_V: G,W,E Key agreement Perform key agreement FIPS_OK Key structs (key agreement keys); Status return; key CKG Section 5 CO primitives on behalf of the flags. agreement shared Key agreement - KAS_Private_ECC: calling process (does not secret. W,E establish keys into the - KAS_Public_ECC: W,E module). - KAS_Private_FFC: W,E - KAS_Public_FFC: W,E - KAS_Private_IFC: W,E

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Indicator Inputs Outputs Security SSP Access Functions - KAS_Public_IFC: W,E - KAS_SS_ECC: G,R - KAS_SS_FFC: G,R - KAS_SS_IFC: G,R Key derivation Derive keying material from a FIPS_OK Key agreement shared secret; Status return; derived Key derivation CO shared secret. flags. keying material. CKG Section 6.2 - KD_DKM_KDF: G,R - KD_PW_PBKDF: W,E - KD_DKM_PBKDF: G,R - KD_SK: W,E Key management Generate asymmetric key FIPS_OK ECDSA, EdDSA: curve identifier. Status return; general Key management CO pairs. DSA, RSA: domain parameter digital signature ECC - DRBG_C: G,W,E targets. private and public Key management - DRBG_Key: W,G,E keys. Edwards - DRBG_V: W,G,E Key management - GKP_Private_ECC: G,R FFC - GKP_Public_ECC: G,R Key management IFC GKP_Private_Edwards: CKG Section 4 G,R - GKP_Public_Edwards: G,R - GKP_Private_FFC: G,R - GKP_Public_FFC: G,R - GKP_Private_IFC: G,R - GKP_Public_IFC: G,R Key transport Encapsulate or decapsulate FIPS_OK Key encapsulation/decapsulation Status return; key CKG Section 5 CO key material on behalf of the key or Key wrap/unwrap key. transport shared Key transport - KTS_KDK_IFC: W,E calling process. secret. KTS (Cipher w/ - KTS_KEK_IFC: W,E CMAC, GMAC, - KTS_SS_IFC: G,R HMAC, KMAC) KTS (AES KW, KWP) Message digest Generate a message digest. FIPS_OK Message; flags. Status return; Hash Message Digest output value. Message Digest (XOF SHAKE) Query Report available crypto FIPS_OK Provider context, operation ID. Array of available operations. operations. Message Generate or verify data FIPS_OK Keyed hash key. Status return; MAC MAC AES (CMAC, CO authentication integrity. output value. GMAC) - KH_Key_AES-CMAC:

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Indicator Inputs Outputs Security SSP Access Functions MAC HMAC W,E MAC KMAC (XOF) - KH_Key_AES-GMAC: W,E - KH_Key_HMAC: W,E - KH_Key_KMAC: W,E Message digest Generate a message digest. FIPS_OK Message; flags. Status return; Hash Message Digest output value. Message Digest (XOF SHAKE) Query Report available crypto FIPS_OK Provider context, operation ID. Array of available None operations. operations. Random Generate random bits using FIPS_OK DRBG struct (RBG State); Status return; Random Random CO the DRBG. DRBG_Seed. value. CKG Section 4 - DRBG_C: W,E - DRBG_EI: W,E,Z - DRBG_Seed: G,E,Z - DRBG_Key: W,E - DRBG_V: W,E Self-test Perform the self-test FIPS_OK Provider context. Status (1 = pass, 0 = sequence. fail). Show module Return module name and FIPS_OK Provider context, parameter types Parameter types name and versioning information. (array). (array) with: Name, versioning Version. information Show status OpenSSL core metadata FIPS_OK Provider context, parameter types Parameter types with: (Gettable parameters; Get (array). BuildInfo, Status, parameters). SecurityChecks; Status return. Self-test Perform the self-test FIPS_OK Provider context. Status (1 = pass, 0 = None sequence. fail). Show module Return module name and FIPS_OK Provider context, parameter types Parameter types with: None name and versioning information. (array). Name, Version. versioning information Show status OpenSSL core metadata FIPS_OK Provider context, parameter types Parameter types with: None (Gettable parameters; Get (array). BuildInfo, Stats, parameters). SecurityChecks; Status return.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Indicator Inputs Outputs Security SSP Access Functions Signature Generate or verify digital FIPS_OK Sign: signing key; message. Verify: Status return; CKG Section 5 CO signatures. (SSPs are passed in signature value; flags; sizes. Signature value. Signature DSA - DS_SGK_ECC: W,E by the calling process.) Signature ECDSA - DS_SVK_ECC: W,E Signature EDDSA - DS_SGK_Edwards: Signature RSA W,E - DS_SVK_Edwards: W,E - DS_SGK_FFC: W,E - DS_SVK_FFC: W,E - DS_SGK_IFC: W,E - DS_SVK_IFC: W,E Teardown Uninstantiate the module; FIPS_OK Provider context. None. CO zeroizes internal CTR DRBG - DRBG_Key: Z state (DRBG_Key, DRBG_V). - DRBG_V: Z Zeroize Zeroization of allocated key FIPS_OK Memory pointer. Void. CO structures using - DRBG_C: Z openssl_cleanse. - DRBG_EI: Z - DRBG_Key: Z - DRBG_Seed: Z - DRBG_V: Z - DS_SGK_ECC: Z - DS_SGK_Edwards: Z - DS_SGK_FFC: Z - DS_SGK_IFC: Z - DS_SVK_ECC: Z - DS_SVK_Edwards: Z - DS_SVK_FFC: Z - DS_SVK_IFC: Z - GKP_Private_ECC: Z GKP_Private_Edwards: Z - GKP_Private_FFC: Z - GKP_Private_IFC: Z - GKP_Public_ECC: Z - GKP_Public_Edwards: Z - GKP_Public_FFC: Z

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Indicator Inputs Outputs Security SSP Access Functions - GKP_Public_IFC: Z - KAS_Private_ECC: Z - KAS_Private_FFC: Z - GKP_Private_ECC: Z - KAS_Private_IFC: Z - KAS_Public_ECC: Z - KAS_Public_FFC: Z - KAS_Public_IFC: Z - KAS_SS_ECC: Z - KD_DKM_KDF: Z - KD_DKM_PBKDF: Z - KD_SK: Z - KH_Key_AES-CMAC: Z - KH_Key_AES-GMAC: Z - KH_Key_HMAC: Z - KH_Key_KMAC: Z - KTS_KDK_IFC: Z - KTS_KEK_IFC: Z - KTS_SS_IFC: Z - KAS_SS_ECC: Z - SC_EDK_AES: Z - SC_EDK_XTS: Z Table 10: Approved Services All services implemented by the Module correspond to the functionality described by the fips_query function, which returns available services based on an operation_id input. The fips_get_params function provides access to the current status of the Module as well as the name and version; this information correlates to the validation listing. A 1 value returned in status indicates the Module is running without error (FIPS_OK); a 0 return indicates an error (with additional error details indicated as described in the release specific API documentation). Services are only operational in the running state. Any attempts to access services in any other state will result in an error being returned. If the integrity test or any CAST fails then any attempt to access any service will result in an error being returned. The OpenSSL toolkit OSSL_PROVIDER_get_params function is used to invoke fips_get_params, when called with the Module’s global handle and a pointer to a parameter structure (initialized using provider_gettable_params or the equivalent). Regarding the Indicator of approved security services, the Module conforms to FIPS 140-3 IG 2.4.C Approved Security Service Indicator, similar to example 2. Each service provides context sensitive status responses as described in the OpenSSL 3 API manual pages; generally, functions of return type int return the value 1 for success with other error codes as appropriate for the call (described in API documentation).

FIPS 140-3 Security Policy Kiteworks Cryptographic Module The Module’s name and version parameters (as cited in Section 2) along with the Module’s internal indicators of the security-check and conditional-errors settings are used to confirm the Module is the validated Module operating in the approved mode with only approved security services. Note that the caller provides the KAS_Private and KAS_Public keys for shared secret computation; the caller’s exchange and assurance of PSPs with the remote participant is outside the scope of the Module.

The Module uses HMAC-SHA2-256 as the approved integrity technique; the file fips.so.mac contains the integrity reference value. The Module is provided in an executable form (as fips.so shared object for use in Linux environments).

The operator can initiate the integrity test on demand by calling fips_self_test (invoked using OSSL_PROVIDER_self_test called with the Module’s global handle) or reloading the Module.

In accordance with ISO/IEC 19790:2012 Annex B, as the Module is open source, the tools used to build the Module as tested are:

• gcc version 9.3.0
• perl v5.30.0
• gnu make v4.2.1

Type of Operational Environment: Modifiable No operational environment restrictions are required for operation in the approved mode. All conditions for operation of the Module in the approved mode are given in Section 2.4.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module The Module conforms to FIPS 140-3 IG 2.3.C Processor Algorithm Accelerators (PAA) and Processor Algorithm Implementation (PAI). The AES-NI functions are identified by FIPS 140-3 IG 2.3.C as a known PAA.

Storage Description Persistence Area Type Name RAM R: Random access memory Dynamic Table 11: Storage Areas

Name From To Format Distribution Entry SFI or Type Type Type Algorithm I Calling process Call stack (API) input parameters Plaintext Manual Electronic O Call stack (API) output parameters Calling process Plaintext Manual Electronic Table 12: SSP Input-Output Methods

Zeroization Description Rationale Operator Initiation Method C C (Cleanse): Caller invocation of openssl_cleanse. Overwrites with zeros Caller invocation of openssl_cleanse T T (Teardown): Module unload - invokes cleanse internally. Overwrites with zeros Occurs when module is unloaded Table 13: SSP Zeroization Methods

FIPS 140-3 Security Policy Kiteworks Cryptographic Module All SSPs are zeroized (overwritten with 0s) when they are no longer needed:

• CSPs and PSPs with a lifetime associated with an OpenSSL object (e.g., EVP_PKEY) are zeroized when freed or reinitialized. The OPENSSL_cleanse function is used to zeroize CSPs and PSPs owned by the caller.
• CSPs with a lifetime associated with the Module are zeroized on Module uninstantiation (the Teardown operation).

Name Description Size - Strength Type - Category Generated By Established Used By By DRBG_C Element of Hash DRBG Size: 440-888 - Hash_DRBG_C - CSP Random Random state. Strength: 160 ≤ s ≤ 256 DRBG_EI Entropy input from an Size: 128-2^35 - Other - CSP Random external source used Strength: 128 ≤ s ≤ 256 for DRBG seeding. DRBG_Key Element of CTR DRBG Size: 128-256, 128-256 - CTR_DRBG_Key, HMAC_DRBG_Key Random Random or HMAC DRBG state. Strength: 128 ≤ s ≤ 256, 160 ≤ s ≤ - CSP DRBG_Seed Seed used for DRBG Size: 128-256 - Other - CSP Random Random Instantiation and Strength: 128 ≤ s ≤ 256 Reseed. DRBG_V Element of CTR, Hash Size: 128-256, 128-256, 128-256 CTR_DRBG_Key, Hash_DRBG_Key, Random Random or HMAC DRBG state. - HMAC_DRBG_Key - CSP Strength: 128 ≤ s ≤ 256, 128 ≤ s ≤ 256, 128 ≤ s ≤ 256 DS_SGK_ECC SigGen (private) key. Size: 233, 283, 409, 571, 233, B-233, B-283, B-409, B-571, K-233, Signature 283, 409, 571, 224, 256, 384, K-283, K-409, K-571, P-224, P-256, ECDSA

Strength: s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256 DS_SGK_Edwards SigGen (private) key. Size: 255, 448 - Edwards25519, Edwards448 - CSP Signature Strength: s = 128, s = 224 EDDSA DS_SGK_FFC SigGen (private) key. Size: 2048, 2048, 3072 - L=2048/N=224, L=2048/N=256, Signature DSA Strength: s = 112, s = 112, s = L=3072/N=256 - CSP DS_SGK_IFC SigGen (private) key. Size: 2048, 3072, 4096, 6144, k=2048, k=3072, k=4096, k=6144, Signature RSA

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Size - Strength Type - Category Generated By Established Used By By Strength: s = 112, s = 128, s = 152, s = 176, s = 200 DS_SVK_ECC SigVer (public) key. Size: 163, 233, 283, 409, 571, B-163, B-233, B-283, B-409, B-571, Signature 163, 233, 283, 409, 571, 192, K-163, K-233, K-283, K-409, K-571, ECDSA 224, 256, 384, 521 - P-192, P-224, P-256, P-384, P-521 Strength: s < 112, s = 112, s = PSP 128, s = 192, s = 256, s < 112, s = 112, s = 128, s = 192, s = 256, s < 112, s = 112, s = 128, s = 192, s = DS_SVK_Edwards SigVer (public) key. Size: 255, 448 - Edwards25519, Edwards448 - PSP Signature Strength: s = 128, s = 224 EDDSA DS_SVK_FFC SigVer (public) key. Size: 1024, 2048, 2048, 3072 - L=1024/N=160, L=2048/N=224, Signature DSA Strength: s < 112, s = 112, s = L=2048/N=256, L=3072/N=256 112, s = 128 PSP DS_SVK_IFC SigVer (public) key. Size: 1024, 2048, 3072, 4096, k=1024, k=2048, k=3072, k=4096, Signature RSA 6144, 8192 - k=6144, k=8192 - PSP Strength: s ≤ 112, s = 112, s = 128, s = 152, s = 176, s = 200 GKP_Private_ECC General ECDSA Size: 233, 283, 409, 571, 233, B-233, B-283, B-409, B-571, K-233, Key Key (private) key. 283, 409, 571, 224, 256, 384, K-283, K-409, K-571, P-224, P-256, management management

521 - P-384, P-521 - CSP ECC ECC

Strength: s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256 GKP_Private_Edwards General EdDSA Size: 255, 448 - Edwards25519, Edwards448 - CSP Key Key (private) key. Strength: s = 128, s = 224 management management Edwards Edwards GKP_Private_FFC General FFC (private) Size: 2048, 2048, 3072 - L=2048/N=224, L=2048/N=256, Key Key key. Strength: s = 112, s = 112, s = L=3072/N=256 - CSP management management

128 FFC FFC

GKP_Private_IFC General RSA (private) Size: 2048, 3072, 4096, 6144, k=2048, k=3072, k=4096, k=6144, Key Key key. 8192 - k=8192 - CSP management management Strength: s = 112, s = 128, s = IFC IFC 152, s = 176, s = 200

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Size - Strength Type - Category Generated By Established Used By By GKP_Public_ECC General ECDSA (public) Size: 233, 283, 409, 571, 233, B-233, B-283, B-409, B-571, K-233, Key Key key. 283, 409, 571, 224, 256, 384, K-283, K-409, K-571, P-224, P-256, management management

521 - P-384, P-521 - PSP ECC ECC

Strength: s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256 GKP_Public_Edwards General EdDSA (public) Size: 255, 448 - Edwards25519, Edwards448 - PSP Key Key key. Strength: s = 128, s = 224 management management Edwards Edwards GKP_Public_FFC General FFC (public) Size: 2048, 2048, 3072 - L=2048/N=224, L=2048/N=256, Key Key key. Strength: s = 112, s = 112, s = L=3072/N=256 - PSP management management

128 FFC FFC

GKP_Public_IFC General RSA (public) Size: 2048, 3072, 4096, 6144, k=2048, k=3072, k=4096, k=6144, Key Key key. 8192 - k=8192 - PSP management management Strength: s = 112, s = 128, s = IFC IFC 152, s = 176, s = 200 KAS_Private_ECC Key pair component Size: 233, 283, 409, 571, 233, B-233, B-283, B-409, B-571, K-233, Key agreement used for shared secret 283, 409, 571, 224, 256, 384, K-283, K-409, K-571, P-224, P-256, generation. 521 - P-384, P-521 - CSP Strength: s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s = 192, s = 256 KAS_Private_FFC Key pair component Size: 2048, 3072, 4096, 6144, ffdhe2048, ffdhe3072, ffdhe4096, Key agreement used for shared secret 8192 - ffdhe6144, ffdhe8192 - CSP generation. Strength: s = 112, 112 ≤ s ≤ 128,

≤ s ≤ 200 KAS_Private_IFC Key pair component Size: 2048, 3072, 4096, 6144, k=2048, k=3072, k=4096, k=6144, Key agreement used for shared secret 8192 - k=8192 - CSP generation. Strength: s = 112, s = 128, s = 152, s = 176, s = 200 KAS_Public_ECC Peer key pair Size: 233, 283, 409, 571, 233, B-233, B-283, B-409, B-571, K-233, Key agreement component used for 283, 409, 571, 224, 256, 384, K-283, K-409, K-571, P-224, P-256, shared secret 521 - P-384, P-521 - PSP generation. Strength: s = 112, s = 128, s = 192, s = 256, s = 112, s = 128, s =

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Size - Strength Type - Category Generated By Established Used By By 192, s = 256, s = 112, s = 128, s = 192, s = 256 KAS_Public_FFC Peer key pair Size: 2048, 3072, 4096, 6144, ffdhe2048, ffdhe3072, ffdhe4096, Key agreement component used for 8192 - ffdhe6144, ffdhe8192 - PSP shared secret Strength: s = 112, 112 ≤ s ≤ 128, generation. 112 ≤ s ≤ 152, 112 ≤ s ≤ 176, 112 ≤ s ≤ 200 KAS_Public_IFC Peer key pair Size: 2048, 3072, 4096, 6144, k=2048, k=3072, k=4096, k=6144, Key agreement component used for 8192 - k=8192 - PSP shared secret Strength: s = 112, s = 128, s = generation. 152, s = 176, s = 200 KAS_SS_ECC Shared secret Size: 112 - 256 - Other - CSP Key Key agreement calculation z output Strength: 112 - 256 agreement value (for KDF). KAS_SS_FFC Shared secret Size: 112 - 256 - Other - CSP Key Key agreement calculation z output Strength: 112 - 200 agreement value (for KDF). KAS_SS_IFC Shared secret Size: 112 - 256 - Other - CSP Key Key agreement calculation z output Strength: 112 - 200 agreement value (for KDF). KD_DKM_KDF Key derivation derived Size: 128 - 256 - Other - CSP Key derivation Key derivation keying material. Strength: 128 - 256 KD_DKM_PBKDF PBKDF derived key Size: 128 - Other - CSP Key derivation Key derivation material Strength: 128 KD_PW_PBKDF PBKDF password input. Size: 128 - Other - CSP Key derivation Key derivation Strength: 128 KD_SK Key derivation source Size: 128 - 256 - Other - CSP Key derivation key material. Strength: 128 - 256 KH_Key_AES-CMAC Keyed Hash key. Size: 128, 192, 256 - AES-128, AES-192, AES-256 - CSP MAC AES Strength: s = 128, s = 192, s = (CMAC, GMAC) KH_Key_AES-GMAC Keyed Hash key. Size: 128, 192, 256 - AES-128, AES-192, AES-256 - CSP MAC AES Strength: s = 128, s = 192, s = (CMAC, GMAC) KH_Key_HMAC Keyed Hash key. Size: 112 - 2048 - Other - CSP MAC HMAC Strength: 112 - 256

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Description Size - Strength Type - Category Generated By Established Used By By KH_Key_KMAC Keyed Hash key. Size: 128, 256 - KMAC128, KMAC256 - CSP MAC KMAC Strength: 112 ≤ s ≤ 128, 112 ≤ s ≤ (XOF) KTS_KDK_IFC RSA key de- Size: 2048, 3072, 4096, 6144 - Other - CSP Key transport encapsulation Key (key Strength: s = 112, s = 128, s = transport). 152, s = 176 KTS_KEK_IFC RSA key encapsulation Size: 2048, 3072, 4096, 6144 - Other - PSP Key transport Key (key transport). Strength: s = 112, s = 128, s = 152, s = 176 KTS_SS_IFC RSA key transport Size: 112 - 256 - Other - CSP Key Key transport shared secret. Strength: s = 112 - s = 176 transport SC_EDK_AES Symmetric encryption Size: 128, 192, 256 - AES-128, AES-192, AES-256 - CSP Cipher and decryption. Strength: s = 128, s = 192, s = (Unauth)

256 Cipher (Auth)

SC_EDK_XTS Symmetric encryption Size: 256, 512 - XTS-128, XTS-256 - CSP Cipher and decryption. Strength: s = 128, s = 256 (Unauth) Table 14: SSP Table 1 Name Input - Storage Storage Duration Zeroization Related SSPs Output DRBG_C I RAM:Plaintext Call lifetime C DRBG_Seed:Derived From O DRBG_V:Used with DRBG_EI I RAM:Plaintext Call lifetime C DRBG_Seed:Constituent DRBG_Key I RAM:Plaintext Call lifetime (module up time for internal DRBG) C DRBG_Seed:Derived From O T DRBG_V:Used with DRBG_Seed RAM:Plaintext Call lifetime C DRBG_C:Derives DRBG_Key:Derives DRBG_V:Derives DRBG_EI:Incorporates DRBG_V I RAM:Plaintext Call lifetime (module up time for internal DRBG) C DRBG_Seed:Derived From O T DRBG_Key:Used with DS_SGK_ECC I RAM:Plaintext Call lifetime C DS_SVK_ECC:Paired With DS_SGK_Edwards I RAM:Plaintext Call lifetime C DS_SVK_Edwards:Paired With DS_SGK_FFC I RAM:Plaintext Call lifetime C DS_SVK_FFC:Paired With DS_SGK_IFC I RAM:Plaintext Call lifetime C DS_SVK_IFC:Paired With DS_SVK_ECC I RAM:Plaintext Call lifetime C DS_SGK_ECC:Paired With DS_SVK_Edwards I RAM:Plaintext Call lifetime C DS_SGK_Edwards:Paired With

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Input - Storage Storage Duration Zeroization Related SSPs Output DS_SVK_FFC I RAM:Plaintext Call lifetime C DS_SGK_FFC:Paired With DS_SVK_IFC I RAM:Plaintext Call lifetime C DS_SGK_IFC:Paired With GKP_Private_ECC O RAM:Plaintext Call lifetime C GKP_Public_ECC:Paired With GKP_Private_Edwards O RAM:Plaintext Call lifetime C GKP_Public_Edwards:Paired With GKP_Private_FFC O RAM:Plaintext Call lifetime C GKP_Public_FFC:Paired With GKP_Private_IFC O RAM:Plaintext Call lifetime C GKP_Public_IFC:Paired With GKP_Public_ECC O RAM:Plaintext Call lifetime C GKP_Private_ECC:Paired With GKP_Public_Edwards O RAM:Plaintext Call lifetime C GKP_Private_Edwards:Paired With GKP_Public_FFC O RAM:Plaintext Call lifetime C GKP_Private_FFC:Paired With GKP_Public_IFC O RAM:Plaintext Call lifetime C GKP_Private_IFC:Paired With KAS_Private_ECC I RAM:Plaintext Call lifetime C KAS_Public_ECC:Paired With KAS_Private_FFC I RAM:Plaintext Call lifetime C KAS_Public_FFC:Paired With KAS_Private_IFC I RAM:Plaintext Call lifetime C KAS_Public_IFC:Paired With KAS_Public_ECC I RAM:Plaintext Call lifetime C KAS_Private_ECC:Paired With KAS_Public_FFC I RAM:Plaintext Call lifetime C KAS_Private_FFC:Paired With KAS_Public_IFC I RAM:Plaintext Call lifetime C KAS_Private_IFC:Paired With KAS_SS_ECC O RAM:Plaintext Call lifetime C KAS_Private_ECC:Calculated From KAS_Public_ECC:Calculated From KAS_SS_FFC O RAM:Plaintext Call lifetime C KAS_Private_FFC:Calculated From KAS_Public_FFC:Calculated From KAS_SS_IFC O RAM:Plaintext Call lifetime C KAS_Private_IFC:Calculated From KAS_Public_IFC:Calculated From KD_DKM_KDF O RAM:Plaintext Call lifetime C KD_SK:Derived From KD_DKM_PBKDF O RAM:Plaintext Call lifetime C KD_PW_PBKDF:Derived From KD_PW_PBKDF I RAM:Plaintext Call lifetime C KD_DKM_PBKDF:Derives KD_SK I RAM:Plaintext Call lifetime C KD_DKM_KDF:Derives KH_Key_AES-CMAC I RAM:Plaintext Call lifetime C KH_Key_AES-GMAC I RAM:Plaintext Call lifetime C KH_Key_HMAC I RAM:Plaintext Call lifetime C KH_Key_KMAC I RAM:Plaintext Call lifetime C KTS_KDK_IFC I RAM:Plaintext Call lifetime C KTS_SS_IFC:Unwraps KTS_KEK_IFC I RAM:Plaintext Call lifetime C KTS_SS_IFC:Wraps KTS_SS_IFC O RAM:Plaintext Call lifetime C KTS_KDK_IFC:Unwrapped By KTS_KEK_IFC:Wrapped By SC_EDK_AES I RAM:Plaintext Call lifetime C

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Name Input - Storage Storage Duration Zeroization Related SSPs Output SC_EDK_XTS I RAM:Plaintext Call lifetime C Table 15: SSP Table 2 Keys used for CASTs and the temporary value used in the integrity test are not SSPs; however, the latter is deleted after use as required by AS05.10. The Module maintains only the Counter DRBG state used for key generation as a persistent CSP; this DRBG instance is used exclusively for approved services.

Key/Algorithm Type Equivalent Strengths: Reference sources for the strengths provided in SSP Table 1 are specified below. Equivalent strength is given for each key or algorithm type (as some algorithms do not use or produce keys). Block Cipher (and related functions): • AES (AES-128, AES-192, AES-256): SP 800-57 Part 1 Rev. 5 Table

2. Digital Signature: • ECC (B-163, B-233, B-283, B-409, B-571, K-163, K-233, K-283, K-409, K-571, P-192, P-224, P-256, P-384, P-521): SP 800-186 Table 1 (provides approximate elliptic curve security strengths). SP 800-186 and FIPS 140-3 IG C.K indicate that the Binary (B-) and Koblitz (K-) curves are deprecated. • EdDSA (ED-25519, ED-448): SP 800-186 Table 1. • FFC (DSA: L=1024/N=160, L=2048/N=224, L=2048/N=256, L=3072/N=256): SP 800-57 Part 1 Rev. 5 Table
3. Security strength for L=2048/N=256 is determined in accordance with FIPS 140-3 IG D.B Strength of SSP Establishment Methods as y = min(x, N/2), where x is 112 and therefore y = min(112, 128) = 112. • IFC (RSA: k=1024, k=2048, k=3072, k=4096): SP 800-57 Part 1 Rev. 5 Table
4. In Digital Signature applications, security strength is primarily associated with the asymmetric key pair specification. The hash function used must have equivalent strength equal to or greater than the security strength of the associated key pair. Secure Hash (and related functions): • SHA-1, SHA2 (SHA2-224, SHA2-256, SHA2-384, SHA2-512, SHA2-512/224, SHA2-512/256): SP 800-107 Rev. 1 Table 1. • SHA3 (SHA3-224, SHA3-256, SHA3-384, SHA3-512): SP 800-57 Part 1 Rev. 5 Table 3. • SHAKE (SHAKE128, SHAKE256): SP 800-185 Section 8.1. Preimage resistance strength applies to hash algorithms used in DRBG, KDFs. Described also in SP 800-57 Part 1 Rev. 5 Table
5. Message Authentication: • KMAC (KMAC128, KMAC256): SP 800-56C Rev. 2 Table
6. Key Agreement: • KAS-ECC-SSC (B-233, B-283, B-409, B-571, K-233, K-283, K-409, K-571, P-224, P-256, P-384, P-521): SP 800-56A Rev. 3 Table 24.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

• KAS-FFC-SSC (FB, FC, ffdhe2048, ffdhe3072, ffdhe4096, ffdhe6144, ffdhe8192, modp-2048, modp-3072, modp-4096, modp-6144, modp-8192): SP 800-56A Rev. 3 Tables 25 and 26.
• KAS-IFC-SSC (k=2048, k=3072, k=4096, k=6144, k=8192): SP 800-56B Rev. 2 Table 4 (provides approximate security strengths). Key Agreement Key Derivation:
• KDA OneStep: SP 800-56C Rev. 2 Table 1 (hash), Table 2 (HMAC) and Table 3 (KMAC).

Algorithm Test Properties Test Method Test Type Indicator Details or Test SW Integrity HMAC-SHA2-256 #A4481 HMAC over the complete module file image SW/FW Integrity FIPS_OK or PROV_R_FIPS_MODULE_IN_ERROR_STATE Table 16: Pre-Operational Self-Tests

Algorithm or Test Properties Test Test Indicator Details Conditions Test Method Type AES-ECB 128-bit KAT CAST FIPS_OK Encrypt Performed on module load. AES-ECB 128-bit KAT CAST FIPS_OK Decrypt Performed on module load. AES-GCM 256-bit KAT CAST FIPS_OK Encrypt Performed on module load. AES-GCM 256-bit KAT CAST FIPS_OK Decrypt Performed on module load. Counter DRBG AES-128 with derivation KAT CAST FIPS_OK Instantiate, Generate, Reseed Performed on module load. function DSA SigGen 2048-bit with SHA2-384 KAT CAST FIPS_OK Sign Performed on module load. (FIPS186-4) DSA SigVer 2048-bit with SHA2-384 KAT CAST FIPS_OK Verify Performed on module load. (FIPS186-4) ECDSA SigGen P-224 with SHA2-512 KAT CAST FIPS_OK Sign Performed on module load. (FIPS186-4) ECDSA SigVer P-224 with SHA2-512 KAT CAST FIPS_OK Verify Performed on module load. (FIPS186-4) EDDSA ED448 Edwards448 SigGen with SHA2- KAT CAST FIPS_OK Sign Performed on module load. SigGen 256 EDDSA ED448 Edwards448 SigVer with SHA2- KAT CAST FIPS_OK Verify Performed on module load. SigVer 256

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Algorithm or Test Properties Test Test Indicator Details Conditions Test Method Type EDDSA ED25519 Edwards25519 SigGen with KAT CAST FIPS_OK Sign Performed on module load. SigGen SHA2-512 EDDSA ED25519 Edwards25519 SigVer with KAT CAST FIPS_OK Verify Performed on module load. SigVer SHA2-512 Hash DRBG SHA2-256 KAT CAST FIPS_OK Instantiate, Generate, Reseed Performed on module load. HMAC DRBG SHA-1 KAT CAST FIPS_OK Instantiate, Generate, Reseed Performed on module load. HMAC-SHA2-256 SHA2-256 with a 256-bit key KAT CAST FIPS_OK Generate Performed on module load. KAS-ECC-SSC P-256 KAT CAST FIPS_OK Ephemeral Unified Shared Secret Performed on module load. Sp800-56Ar3 (Z) Computation KAS-FFC-SSC L=2048/N=256 KAT CAST FIPS_OK dhEphem Shared Secret (Z) Performed on module load. Sp800-56Ar3 Computation KAS-IFC-SSC k=2048 KAT CAST FIPS_OK SP 800-56B Rev. 2 Section 8.2.2 RSA Performed on module load. Primitive Computation KAS-KDF SHA2-224 KAT CAST FIPS_OK SP 800-56C Rev. 2 Section 4 Performed on module load. OneStep SP800- OneStep KDF (AKA OpenSSL single56Cr2 step or SS-KDF) KAS-KDF SHA2-256 KAT CAST FIPS_OK SP 800-56C Rev. 2 Section 5 Performed on module load. TwoStep SP800- TwoStep KDF (HKDF variant) 56Cr2 KDF ANS 9.42 Fixed input KAT KAT CAST FIPS_OK SP 800-135 Rev. 1 Section 5.1 ANSI Performed on module load. X9.42-2001 KDF KAT KDF ANS 9.63 Fixed input KAT KAT CAST FIPS_OK SP 800-135 Rev. 1 Section 5.1 Performed on module load. X9.63-2001 KDF KAT KDF SP800-108 HMAC-SHA2-256 KAT CAST FIPS_OK SP 800-108 Rev. 1 Section 4.1 KAT Performed on module load. for a Counter Mode KDF KDF SSH Fixed input KAT KAT CAST FIPS_OK SP 800-135 Rev. 1 Section 5.2 Performed on module load. SSHv2 KDF KAT KTS-IFC k=2048 KAT CAST FIPS_OK SP 800-56B Rev. 2 Decrypt for CRT Performed on module load. KTS-IFC k=2048 KAT CAST FIPS_OK SP 800-56B Rev. 2 Encrypt for Basic Performed on module load. KTS-IFC k=2048 KAT CAST FIPS_OK SP 800-56B Rev. 2 Decrypt for Basic Performed on module load. PBKDF SHA2-256, 24-byte password, KAT CAST FIPS_OK SP 800-132 Section 5.3 KAT of Performed on module load. 36-byte salt, iteration count of Master Key derivation 4096 RSA SigGen k=2048 with SHA2-256 KAT CAST FIPS_OK Sign Performed on module load. (FIPS186-4)

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Algorithm or Test Properties Test Test Indicator Details Conditions Test Method Type RSA SigVer k=2048 with SHA2-256 KAT CAST FIPS_OK Verify Performed on module load. (FIPS186-4) SHA-1 SHA-1 KAT CAST FIPS_OK Simple SHA KAT Performed on module load. SHA2-512 SHA2-512 KAT CAST FIPS_OK Simple SHA KAT Performed on module load. SHA3-256 SHA3-256 KAT CAST FIPS_OK Simple SHA KAT Performed on module load. TLS v1.2 KDF Fixed input KAT KAT CAST FIPS_OK SP 800-135 Rev. 1 Section 4.2.2 TLS Performed on module load. RFC7627 1.2 KAT TLS v1.3 KDF Fixed input KAT KAT CAST FIPS_OK RFC8446 Section 7.1 TLS v1.3 KDF Performed on module load. KAT DSA KeyGen PCT performed using the PCT PCT FIPS_OK Sign, Verify Performed on FFC (DSA, KAS-FFC-SSC) key pair (FIPS186-4) generated key pair generation, prior to returning the key pair on conclusion of the call. ECDSA KeyGen PCT performed using the PCT PCT FIPS_OK Sign, Verify Performed on ECC (ECDSA) key pair generation, (FIPS186-4) generated key pair prior to returning the key pair on conclusion of the call. EDDSA KeyGen PCT performed using the PCT PCT FIPS_OK Sign, Verify Performed on Edwards (EdDSA) key pair generated key pair generation, prior to returning the key pair on conclusion of the call. RSA KeyGen PCT performed using the PCT PCT FIPS_OK Sign, Verify Performed on IFC (RSA, KAS-IFC-SSC, KTS-IFC) key (FIPS186-4) generated key pair pair generation, prior to returning the key pair on conclusion of the call. Table 17: Conditional Self-Tests The intended usage of asymmetric key pairs generated by the Module is not known at the time when the key pair is generated and the pairwise consistency test (PCT) is performed. In all cases, a sign and verify PCT is performed.

Algorithm or Test Test Method Test Type Period Periodic Method SW Integrity HMAC over the complete SW/FW Integrity On demand Module load module file image Table 18: Pre-Operational Periodic Information Algorithm or Test Test Method Test Type Period Periodic Method AES-ECB KAT CAST On demand On power on or reset AES-ECB KAT CAST On demand On power on or reset AES-GCM KAT CAST On demand On power on or reset

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Algorithm or Test Test Method Test Type Period Periodic Method AES-GCM KAT CAST On demand On power on or reset Counter DRBG KAT CAST On demand On power on or reset DSA SigGen (FIPS186-4) KAT CAST On demand On power on or reset DSA SigVer (FIPS186-4) KAT CAST On demand On power on or reset ECDSA SigGen (FIPS186-4) KAT CAST On demand On power on or reset ECDSA SigVer (FIPS186-4) KAT CAST On demand On power on or reset EDDSA ED448 SigGen KAT CAST On demand On power on or reset EDDSA ED448 SigVer KAT CAST On demand On power on or reset EDDSA ED25519 SigGen KAT CAST On demand On power on or reset EDDSA ED25519 SigVer KAT CAST On demand On power on or reset Hash DRBG KAT CAST On demand On power on or reset HMAC DRBG KAT CAST On demand On power on or reset HMAC-SHA2-256 KAT CAST On demand On power on or reset KAS-ECC-SSC Sp800-56Ar3 KAT CAST On demand On power on or reset KAS-FFC-SSC Sp800-56Ar3 KAT CAST On demand On power on or reset KAS-IFC-SSC KAT CAST On demand On power on or reset KAS-KDF OneStep SP800-56Cr2 KAT CAST On demand On power on or reset KAS-KDF TwoStep SP800-56Cr2 KAT CAST On demand On power on or reset KDF ANS 9.42 KAT CAST On demand On power on or reset KDF ANS 9.63 KAT CAST On demand On power on or reset KDF SP800-108 KAT CAST On demand On power on or reset KDF SSH KAT CAST On demand On power on or reset KTS-IFC KAT CAST On demand On power on or reset KTS-IFC KAT CAST On demand On power on or reset KTS-IFC KAT CAST On demand On power on or reset PBKDF KAT CAST On demand On power on or reset RSA SigGen (FIPS186-4) KAT CAST On demand On power on or reset RSA SigVer (FIPS186-4) KAT CAST On demand On power on or reset SHA-1 KAT CAST On demand On power on or reset SHA2-512 KAT CAST On demand On power on or reset SHA3-256 KAT CAST On demand On power on or reset TLS v1.2 KDF RFC7627 KAT CAST On demand On power on or reset TLS v1.3 KDF KAT CAST On demand On power on or reset DSA KeyGen (FIPS186-4) PCT PCT On demand On power on or reset ECDSA KeyGen (FIPS186-4) PCT PCT On demand On power on or reset

FIPS 140-3 Security Policy Kiteworks Cryptographic Module Algorithm or Test Test Method Test Type Period Periodic Method EDDSA KeyGen PCT PCT On demand On power on or reset RSA KeyGen (FIPS186-4) PCT PCT On demand On power on or reset Table 19: Conditional Periodic Information

Name Description Conditions Recovery Method Indicator Self-test The self-test failure error If one of the KATs fails or integrity test Reload the Module into PROV_R_FIPS_MODULE_IN_ERROR_STATE failure state fails memory Table 20: Error States

Each time the Module is powered up it tests that the cryptographic algorithms still operate correctly and that sensitive data has not been damaged. The pre-operational self-tests are available on demand by reloading the Module. On instantiation, the Module performs the pre-operational self-test and all CASTs. All KATs must complete successfully prior to any other use of cryptography by the Module. The fips_self_test function (inclusive of software integrity verification) can also be called on demand, fulfilling AS05.11.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

During the manufacturing process, Kiteworks executes the build and installation instructions for the Module. The Module is pre-installed and configured in supported Kiteworks solutions. The approved mode is enabled by default. There are no additional installation, configuration, or usage instructions for operators intending to use the Module.

Guidance Documentation is inclusive of all information required per ISO/IEC 19790:2012 Section 7.11.9.

The inherent properties of the Module are:

1. Manual key entry is not supported.
2. Data output is inhibited during self-tests, zeroization, SSP generation, and error states.
3. The Module does not perform any cryptographic function if any self-test has failed.

FIPS 140-3 Security Policy Kiteworks Cryptographic Module

The Module implements mitigations for constant-time implementations and blinding attacks.

Constant-time implementations protect cryptographic implementations in the Module against timing analysis since such attacks exploit differences in execution time depending on the cryptographic operation, and constant-time implementations ensure that the variations in execution time cannot be traced back to the key, CSP or secret data. Numeric blinding protects the RSA, DSA and ECDSA algorithms from timing attacks. These algorithms are vulnerable to such attacks since attackers can measure the time of signature operations or RSA decryption. To mitigate this, the Module generates a random blinding factor which is provided as an input to the decryption/signature operation and is discarded once the operation has completed and resulted in an output. This makes it difficult for attackers to attempt timing attacks on such operations without the knowledge of the blinding factor, and therefore the execution time cannot be correlated to the RSA/DSA/ECDSA key.

The mitigation mechanisms described in Section 12.2 are inherent within the validated algorithms. No other guidance or constraints are specified.