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Microsoft Windows Server 2008 R2 Kernel Mode Cryptographic Primitives Library (cng.sys)

Microsoft Corporation - FIPS 140 #1335

historicalLevel 156 related CVEs

CNG.SYS runs as a kernel mode export driver, and provides cryptographic services, through their documented interfaces, to Windows Server 2008 R2 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
1335
Standard
FIPS 140-2
Security level
Level 1
Status
historical
Vendor
Microsoft Corporation
Module type
Software
Embodiment
Multi-Chip Stand Alone
Lab
SAIC-VA
First validated
August 12, 2010
Versions
6.1.7600.16385, 6.1.7600.16915, 6.1.7600.21092, 6.1.7601.17514, 6.1.7601.17919, 6.1.7601.17725, 6.1.7601.21861 and 6.1.7601.22076
Caveat
When operated in FIPS mode with Windows Server 2008 R2 Winload OS Loader (winload.exe) validated to FIPS 140-2 under Cert. #1333 operating in FIPS mode

Algorithms

  • AES
  • AES GCM
  • AES GMAC
  • DRBG
  • ECDSA
  • HMAC
  • RNG
  • 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

and 6 more

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

  • 1333

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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