---
title: ES|QL SHA256 function
description: 
url: https://www.elastic.co/elastic/docs-builder/docs/3028/reference/query-languages/esql/functions-operators/string-functions/sha256
products:
  - Elasticsearch
---

# ES|QL SHA256 function
## Syntax

![Embedded](https://www.elastic.co/elastic/docs-builder/docs/3028/reference/query-languages/esql/images/functions/sha256.svg)


## Parameters

<definitions>
  <definition term="input">
    Input to hash.
  </definition>
</definitions>


## Description

Computes the SHA256 hash of the input.

## Supported types


| input   | result  |
|---------|---------|
| keyword | keyword |
| text    | keyword |


## Example

```esql
FROM sample_data
| WHERE message != "Connection error"
| EVAL sha256 = sha256(message)
| KEEP message, sha256
```


| message:keyword       | sha256:keyword                                                   |
|-----------------------|------------------------------------------------------------------|
| Connected to 10.1.0.1 | 6d8372129ad78770f7185554dd39864749a62690216460752d6c075fa38ad85c |
| Connected to 10.1.0.2 | b0db24720f15857091b3c99f4c4833586d0ea3229911b8777efb8d917cf27e9a |
| Connected to 10.1.0.3 | 75b0480188db8acc4d5cc666a51227eb2bc5b989cd8ca912609f33e0846eff57 |
| Disconnected          | 04dfac3671b494ad53fcd152f7a14511bfb35747278aad8ce254a0d6e4ba4718 |