# 240 — FIPS 140 validated cryptographic modules: active, historical or revoked

For 240, vendor is Microsoft Corporation; module name is DSS/Diffie-Hellman Enhanced Cryptographic Provider for Windows XP; module type is Software; validation date is 08/01/2002 02/25/2005 10/15/2007; status is Historical, verified against its source on 2026-08-05.

- **Certificate number:** 240 _(verified: appears in the quote below)_
- **Vendor:** Microsoft Corporation _(verified: appears in the quote below)_
- **Module name:** DSS/Diffie-Hellman Enhanced Cryptographic Provider for Windows XP _(verified: appears in the quote below)_
- **Module type:** Software _(verified: appears in the quote below)_
- **Validation date:** 08/01/2002 02/25/2005 10/15/2007 _(verified: appears in the quote below)_
- **Status:** Historical _(verified: appears in the quote below)_
- **Standard:** FIPS 140-1 _(verified: appears in the quote below)_

## What the source says

> 240 | Microsoft Corporation | DSS/Diffie-Hellman Enhanced Cryptographic Provider for Windows XP | Software | 08/01/2002 02/25/2005 10/15/2007 | Historical |

## Source

- https://csrc.nist.gov/Projects/cryptographic-module-validation-program/validated-modules/Search?SearchMode=Advanced&Standard=140-1&CertificateStatus=Historical&ValidationYear=0

Last verified: 2026-08-05. Review by: 2026-09-04.
Part of [FIPS 140 validated cryptographic modules: active, historical or revoked](https://referencesource.org/fips-140-module-validation-status/).