---
name: "crypto_ahash_reqsize"
section: "9"
platform: "linux"
package: "linux-manual-4.9"
version: "4.9.228-1"
release: "Debian 9 (Stretch)"
platforms: ["linux"]
url: "https://new.carta.tech/crypto_ahash_reqsize"
---

# crypto\_ahash\_reqsize(9)

obtain size of the request data structure

## NAME

crypto\_ahash\_reqsize - obtain size of the request data structure

## SYNOPSIS

**unsigned int crypto\_ahash\_reqsize(struct crypto\_ahash \*** *tfm***);**

## ARGUMENTS

*tfm*

cipher handle

## DESCRIPTION

Return the size of the ahash state size. With the crypto\_ahash\_export function, the caller can export the state into a buffer whose size is defined with this function.

## RETURN

size of the ahash state

## AUTHORS

**Stephan Mueller** \<smueller@chronox.de\>

Author.

**Marek Vasut** \<marek@denx.de\>

Author.

## COPYRIGHT