# Hash.engine

Creates a Node.js implementation of the [`Hash`](/api/Hash) engine slot, without installing it.

Most callers want [`Engine.install`](/node/crypto/Engine/install) instead, which installs every implementation this entrypoint provides. Reach for this to install or hold the `Hash` slot on its own.

Node's `sha3-256` is not Ethereum Keccak256, so this engine deliberately omits `keccak256`. Any earlier override remains installed; otherwise Ox uses its default implementation.

## Imports

:::code-group
```ts [Named]
import { Hash } from 'ox/node'
```

```ts [Entrypoint]
import * as Hash from 'ox/node/Hash'
```
:::

## Examples

```ts twoslash
// @noErrors
import { Engine } from 'ox'
import { Hash } from 'ox/node'

await Engine.install({ Hash: Hash.engine() })

Hash.sha256('0xdeadbeef')
```

## Definition

```ts
function engine(): Promise<engine.ReturnType>
```

**Source:** [src/node/Hash.ts](https://github.com/wevm/ox/blob/main/src/node/Hash.ts#L32)

## Return Type

The raw `Hash` engine slot.

`Promise<engine.ReturnType>`