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DSS/Diffie-Hellman Enhanced Cryptographic Provider for Windows XP

FIPS 140-1 certificate #240 · Microsoft Corporation · data as of 2026-10-21

DSS/Diffie-Hellman Enhanced Cryptographic Provider for Windows XP, from Microsoft Corporation, holds FIPS 140-1 certificate #240 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.

Historical. Validation Sunsetting Policy - FIPS 140-1 Certificate. Federal agencies may reference historical validations for existing systems only, not for new procurement.
Caveat: For services provided by the FIPS-Approved algorithms listed on the reverse

Certificate

Certificate number240
StandardFIPS 140-1
Statushistorical
Overall level1
Module typeSoftware
EmbodimentMulti-chip standalone
VendorMicrosoft Corporation · website
Software versions5.1.2518.0 and 5.1.2600.2133

Security level exceptions

  • EMI/EMC: Level 3
  • Operating System Security: Tested as meeting Level 1 with Microsoft Windows XP and XP Service Pack 2 (single user mode)

Approved algorithms (2)

AlgorithmCAVP certificates
DSA/SHA-1
Triple-DES16

Other algorithms

DES (Cert. #66); RC2; RC4; MD5; DES40; Diffie-Hellman (key agreement)

Validation history

DateTypeLab
2002-08-01InitialCYGNACOM SOLUTIONS INC
2005-02-25Update
2007-10-15Update

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: 2002-08-01, 2005-02-25, 2007-10-15

Source documents