---
title: ES|QL SHA1 function
description: 
url: https://www.elastic.co/elastic/docs-builder/docs/3028/reference/query-languages/esql/functions-operators/string-functions/sha1
products:
  - Elasticsearch
---

# ES|QL SHA1 function
## Syntax

![Embedded](https://www.elastic.co/elastic/docs-builder/docs/3028/reference/query-languages/esql/images/functions/sha1.svg)


## Parameters

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


## Description

Computes the SHA1 hash of the input.

## Supported types


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


## Example

```esql
FROM sample_data
| WHERE message != "Connection error"
| EVAL sha1 = sha1(message)
| KEEP message, sha1
```


| message:keyword       | sha1:keyword                             |
|-----------------------|------------------------------------------|
| Connected to 10.1.0.1 | 42b85531a79088036a17759db7d2de292b92f57f |
| Connected to 10.1.0.2 | d30db445da2e9237c9718d0c7e4fb7cbbe9c2cb4 |
| Connected to 10.1.0.3 | 2733848d943809f0b10cad3e980763e88afb9853 |
| Disconnected          | 771e05f27b99fd59f638f41a7a4e977b1d4691fe |