## `SHA256` [esql-sha256]

**Syntax**

:::{image} ../../../../../images/sha256.svg
:alt: Embedded
:class: text-center
:::

**Parameters**

`input`
:   Input to hash.

**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 |