Kernel Mode Cryptographic Primitives Library (cng.sys) in Microsoft Windows 10, Windows 10 Pro, Windows 10 Enterprise, Windows 10 Enterprise LTSB, Windows 10 Mobile, Windows 10 for Surface Hub

Microsoft Corporation - FIPS 140 #2605

historicalLevel 1

Kernel Mode Cryptographic Primitives Library (cng.sys) runs as a kernel mode export driver, and provides cryptographic services, through their documented interfaces, to Windows kernel components. It supports several cryptographic algorithms accessible via a FIPS function table request IRP (I/O request packet).

Key facts

Scheme: FIPS 140
Certificate: 2605
Standard: FIPS 140-2
Security level: Level 1
Status: historical
Vendor: Microsoft Corporation
Module type: Software
Embodiment: Multi-Chip Stand Alone
Lab: Leidos Accredited Testing & Evaluation (AT&E) Lab
First validated: June 2, 2016
Versions: 10.0.10240 [1], 10.0.10240.17643 [2], 10.0.10586 [3], 10.0.10586.1176 [4]
Caveat: When operated in FIPS mode with modules BitLocker(R) Windows OS Loader (winload) in Microsoft Windows 10, Windows 10 Pro, Windows 10 Enterprise, Windows 10 Enterprise LTSB validated to FIPS 140-2 under Cert. #2601 operating in FIPS mode or BitLocker(R) Windows Resume (winresume) in Microsoft Windows 10, Windows 10 Pro, Windows 10 Enterprise, Windows 10 Enterprise LTSB validated to FIPS 140-2 under Cert. #2602 operating in FIPS mode or BitLocker(R) Windows OS Loader (winload) in Microsoft Windows 10, Windows 10 Pro, Windows 10 Enterprise, Windows 10 Mobile, Windows 10 for Surface Hub validated to FIPS 140-2 under Cert. #2701 or #3451 operating in FIPS mode or BitLocker(R) Windows Resume (winresume) in Microsoft Windows 10, Windows 10 Pro, Windows 10 Enterprise validated to FIPS 140-2 under Cert. #2702 or #3464 operating in FIPS mode or BitLocker(R) Windows OS Loader (winload) in Windows 10 Enterprise LTSB validated to FIPS 140-2 under Cert. #3427 operating in FIPS mode or BitLocker(R) Windows Resume (winresume) in Windows 10 Enterprise LTSB validated to FIPS 140-2 under Cert. #3426 operating in FIPS mode

Algorithms

AES
CVL
DRBG
DSA
ECDSA
HMAC
KAS
KBKDF
KTS
RSA
SHS
Triple-DES

Algorithm families of the CAVP certificates listed for this module, plus post-quantum algorithms named in its documents.

CVEs that may affect this product

sec-certs has not matched any CVE to this certificate. That is not proof the product is unaffected.

Related CVEs and certificate references are automated matches by sec-certs, not reviewed by humans: treat them as "may be affected" and verify before acting.

Certificates it builds on

2601
2602
2701
2702
3426
3427
3451
3464
3652

Certificate ids found in this certificate's documents (automated extraction).

Documents and sources

Source: sec-certs.org (CRoCS, Masaryk University), from NIST CMVP and the Common Criteria Portal - dataset of September 21, 2026 - synced October 15, 2026

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