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

# A\_SHAUpdate(3w)

## NAME

**A\_SHAUpdate** (ADVAPI32.@)

## SYNOPSIS

VOID A\_SHAUpdate\
  (\
   PSHA\_CTX             *Context*,\
   const unsigned char\* *Buffer*,\
   UINT                 *BufferSize*\
  )

## DESCRIPTION

Update a **SHA** context with a hashed data from supplied buffer.

## PARAMS

*Context* **\[Out\]**  **SHA** context.

*Buffer* **\[In\]**  hashed data.

*BufferSize* **\[In\]**  hashed data size.

## RETURNS

Nothing

## IMPLEMENTATION

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

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