# 3903 — FIPS 140 validated cryptographic modules: active, historical or revoked For 3903, vendor is Focus Systems Corporation; module name is MonoCrypt AES Enhanced Crypto Library; module type is Software; validation date is 04/22/2021; status is Historical, verified against its source on 2026-08-05. - **Certificate number:** 3903 _(verified: appears in the quote below)_ - **Vendor:** Focus Systems Corporation _(verified: appears in the quote below)_ - **Module name:** MonoCrypt AES Enhanced Crypto Library _(verified: appears in the quote below)_ - **Module type:** Software _(verified: appears in the quote below)_ - **Validation date:** 04/22/2021 _(verified: appears in the quote below)_ - **Status:** Historical _(verified: appears in the quote below)_ - **Standard:** FIPS 140-2 _(verified: appears in the quote below)_ ## What the source says > 3903 | Focus Systems Corporation | MonoCrypt AES Enhanced Crypto Library | Software | 04/22/2021 | Historical | ## Source - https://csrc.nist.gov/Projects/cryptographic-module-validation-program/validated-modules/Search?SearchMode=Advanced&Standard=140-2&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/).