808bits

Microsoft Azure Linux Kernel Crypto API

FIPS 140-2 certificate #4277 · Microsoft Corporation · data as of 2026-10-09

Microsoft Azure Linux Kernel Crypto API, from Microsoft Corporation, holds FIPS 140-2 certificate #4277 at overall level 1. The validation is historical: agencies may keep the module in existing systems but not buy it new. Below are its algorithm certificates, its validation history, and the list moves this tracker has observed, which NIST does not date.

Historical. Moved to historical list due to sunsetting. Federal agencies may reference historical validations for existing systems only, not for new procurement. Observed moving to historical on 2026-09-22. It was one of the last FIPS 140-2 certificates, all moved at the 140-2 sunset on 2026-09-21.
Caveat: When operated in FIPS mode

Certificate

Certificate number4277
StandardFIPS 140-2
Statushistorical
Overall level1
Module typeSoftware
EmbodimentMulti-Chip Stand Alone
VendorMicrosoft Corporation · website
Software versions1.0 and 2.0

Module description

Quoted from the NIST CMVP entry for this certificate.

The Microsoft Azure Linux Kernel Crypto API Cryptographic Module is a general-purpose, software-based cryptographic module. The module provides general purpose cryptographic services that leverage FIPS 140-2-approved cryptographic algorithms. The module runs as part of the operating system kernel, provides cryptographic services to kernel applications through a C language Application Program Interface (API), and provides cryptographic services to user applications through an AF_ALG socket interface. The module is implemented as a set of shared libraries and binary files.

Security level exceptions

  • Physical Security: N/A
  • Mitigation of Other Attacks: N/A

Approved algorithms (11)

AlgorithmCAVP certificates
AESA1755, A3494
CVLA1755, A3494
DRBGA1755, A3494
ENT
HMACA1755, A3494
KAS-SSCA1755, A3494
KTS
RSAA1755, A3494
SHA-3A1755, A3494
SHSA1755, A3494
Triple-DESA1755, A3494

Tested configurations

  • Microsoft Azure Linux 1.0 on Azure Host Hypervisor running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL with PAA
  • Microsoft Azure Linux 1.0 on Azure Host Hypervisor running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL without PAA
  • Microsoft Azure Linux 1.0 running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL with PAA
  • Microsoft Azure Linux 1.0 running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL without PAA
  • Microsoft Azure Linux 2.0 on Azure Host Hypervisor running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL with PAA
  • Microsoft Azure Linux 2.0 on Azure Host Hypervisor running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL without PAA
  • Microsoft Azure Linux 2.0 running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL with PAA
  • Microsoft Azure Linux 2.0 running on an Azure Compute C2030 Server with an Intel Xeon Platinum 8272CL without PAA

Validation history

DateTypeLab
2022-08-15InitialLeidos Accredited Testing & Evaluation (AT&E) Lab
2024-03-01UpdateLeidos Accredited Testing & Evaluation (AT&E) Lab

Status timeline

As observed by this tracker's snapshots. NIST publishes no dates for list moves; observation began 2026-08-21, so earlier changes carry no date.

  • 2026-08-21: first observed by this tracker, status historical at the time of the earliest snapshot
  • 2026-09-22: observed moving from active to historical
  • Validation dates on record: 2022-08-15, 2024-03-01

Source documents