---
name: "SystemFunction003"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/SystemFunction003"
---

# SystemFunction003(3w)

## NAME

**SystemFunction003** (ADVAPI32.@)

## SYNOPSIS

NTSTATUS SystemFunction003\
  (\
   const BYTE\* *key*,\
   LPBYTE      *output*\
  )

## DESCRIPTION

Hashes a *key* using **DES** and a fixed datablock.

## PARAMS

*key* **\[In\]**  *key* data (**7** bytes).

*output* **\[Out\]**  hashed *key* (**8** bytes).

## RETURNS

**Success:** **STATUS\_SUCCESS**

**Failure:** **STATUS\_UNSUCCESSFUL**

## IMPLEMENTATION

Not declared in a Wine header. The function is either undocumented, or missing from Wine.

Implemented in **"dlls/advapi32/crypt\_lmhash.c"**.