Kernel Mode Cryptographic Primitives Library
Microsoft Corporation - FIPS 140 #4766
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
- 4766
- 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
- August 19, 2024
- Versions
- 10.0.19042, 10.0.19043, 10.0.20348 and 10.0.22000
- Caveat
- When operated in FIPS mode with modules Windows OS Loader validated to FIPS 140-2 under Cert. #4339 operating in FIPS mode, Windows Resume validated to FIPS 140-2 under Cert. #4348 operating in FIPS mode, or TCB Launcher under Cert. #4457 operating in FIPS mode
Algorithms
- AES
- CVL
- DRBG
- DSA
- ECDSA
- HMAC
- KAS
- KAS-SSC
- KBKDF
- KTS
- PBKDF
- 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
- 4339
- 4348
- 4457
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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