---
title: HashMACString
slug: neurons-for-itsm/admin-user-help/enu/latest/hashmacstring
createdAt: 2026-07-14T19:16:40.278Z
---

Applies cryptographic hashing algorithms with Message Authentication signing to text strings. Provide a Hash MAC (Message Authentication Code) Key for an extra level of security. By default, hashed strings are converted to hex format and use UTF-8 encoding.

## Syntax

HashMACString(textValue, hashingAlgorithm, key, isBase64Result, isBase64Key)

## Enabled For

For a description of the business object categories, see [Notes on "Enabled For"](docId\:u26v9feCFs6iLwA0-PVJd).

| Business Object Category                                                                                                                                                                                                                                                                             | Yes/No |
| ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ------ |
| Business Rules: Before-Save Rules                                                                                                                                                                                                                                                                    | Yes    |
| Business Rules: Calculation Rules (After Save, with or without Also Recalculate on Load)                                                                                                                                                                                                             | Yes1   |
| Business Rules: Calculation Rules (Before Save or Always, without Also Recalculate On Load)                                                                                                                                                                                                          | Yes    |
| Business Rules: Calculation Rules (Before Save or Always, with Recalculate On Load)                                                                                                                                                                                                                  | Yes1   |
| Business Rules: Editing Rules                                                                                                                                                                                                                                                                        | Yes2   |
| Business Rules: Initialization Rules                                                                                                                                                                                                                                                                 | Yes    |
| Business Rules: Read Only Rules                                                                                                                                                                                                                                                                      | No     |
| Business Rules: Required Rules                                                                                                                                                                                                                                                                       | Yes2   |
| Business Rules: Validation Rules                                                                                                                                                                                                                                                                     | Yes    |
| Client Expressions                                                                                                                                                                                                                                                                                   | No     |
| Object Permissions                                                                                                                                                                                                                                                                                   | No     |
| Services                                                                                                                                                                                                                                                                                             | No     |
| LDAP                                                                                                                                                                                                                                                                                                 | No     |
| Mobile                                                                                                                                                                                                                                                                                               | No     |
| Quick Actions (except UI Quick Actions)                                                                                                                                                                                                                                                              | Yes    |
| UI Quick Actions                                                                                                                                                                                                                                                                                     | No     |
| Reports                                                                                                                                                                                                                                                                                              | Yes    |
| Search/Dashboard without field references                                                                                                                                                                                                                                                            | No     |
| Search/Dashboard with field references                                                                                                                                                                                                                                                               | No     |
| 1. Not fully supported in calculation rules that have a condition of **After Save** or the **Also Recalculate on Load** option selected. It may fail if the rule's field is used in a grid, form, or saved search.<br />2. Except when this field appears on a form or is triggered by such a field. |        |

## Parameters

| Parameter        | Description                                                                                                         |
| ---------------- | ------------------------------------------------------------------------------------------------------------------- |
| textValue        | The text data to have the hashing function applied.                                                                 |
| hashingAlgorithm | Hashing algorithm for the function, The following are supported:<br />- MD5<br />- SHA1<br />- SHA256<br />- SHA512 |
| key              | Hash function key value.                                                                                            |
| isBase64Result   | (Optional) Flag for returning result in base64 format. Default value is false.                                      |
| isBase64Key      | (Optional) Flag to specify that key is in base64 format. Default value is false.                                    |

## Return Value

String hash, either in hexidecimal format or Base64 encoded.

## Example

$(HashMACString("Test value", "MD5", "keyValue", false, false))

Returns this value:

"10ffe441a1b9db39adb520d9781958db"