Windows XP Enhanced DSS and Diffie-Hellman Cryptographic Provider (DSSENH)
Windows XP Enhanced DSS and Diffie-Hellman Cryptographic Provider (DSSENH), from Microsoft Corporation, holds FIPS 140-2 certificate #990 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 | 990 |
|---|---|
| Standard | FIPS 140-2 |
| Status | historical |
| Overall level | 1 |
| Module type | Software |
| Embodiment | Multi-chip standalone |
| Vendor | Microsoft Corporation · website |
| Software versions | 5.1.2600.5507 |
Module description
Quoted from the NIST CMVP entry for this certificate.
The Microsoft Enhanced DSS and Diffie-Hellman Cryptographic Provider, designed for FIPS 140-2 compliance, is a software-based, cryptographic module. DSSENH encapsulates several different cryptographic algorithms (including SHA-1, DES, TDES, DSA) in a cryptographic module accessible via the Microsoft CryptoAPI.
Approved algorithms (5)
Other algorithms
DES; DES40; Diffie-Hellman (key agreement; key establishment methodology provides between 112 and 150 bits of encryption strength; non-compliant less than 112 bits); MD5; RC2; RC4
Tested configurations
- Windows XP Professional SP3 (in single user mode)
Validation history
| Date | Type | Lab |
|---|---|---|
| 2008-07-24 | 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: 2008-07-24