Microsoft Windows XP Kernel Mode Cryptographic Module (FIPS.SYS)
Microsoft Windows XP Kernel Mode Cryptographic Module (FIPS.SYS), from Microsoft Corporation, holds FIPS 140-2 certificate #997 at overall level 1. The validation is historical: agencies may keep the module in existing systems but not buy it new. Below are its validation history, algorithm certificates and security policy, drawn from the NIST CMVP entry.
Caveat: When operated in FIPS mode
Certificate
| Certificate number | 997 |
|---|---|
| Standard | FIPS 140-2 |
| Status | historical |
| Overall level | 1 |
| Module type | Software |
| Embodiment | Multi-chip standalone |
| Vendor | Microsoft Corporation · website |
| Software versions | 5.1.2600.5512 |
Module description
Quoted from the NIST CMVP entry for this certificate.
FIPS.sys is a general-purpose, software-based, cryptographic module residing at the Kernel level of the Windows Operating System. It runs as a kernel mode export driver (a kernel-mode DLL) and encapsulates several different cryptographic algorithms in an easy-to-use cryptographic module accessible by other kernel mode services.
Approved algorithms (5)
Other algorithms
DES; MD5; HMAC MD5
Tested configurations
- Microsoft Windows XP Professional SP3 (single-user mode)
Validation history
| Date | Type | Lab |
|---|---|---|
| 2008-08-15 | Initial | SAIC-VA |
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
- Validation dates on record: 2008-08-15