---
title: roHashGenerator
slug: develop/rohashgenerator
docTags: 
createdAt: 2025-03-11T07:07:17.200Z
---

This object allows you to generate a variety of message digests. The JavaScript equivalent is the Node.js Crypto API.

Object Creation: The hashing algorithm is specified when creating the *roHashGenerator* object.

```text
CreateObject("roHashGenerator", algorithm As String)
```

The algorithm parameter accepts the following strings:

- "SHA256"
- "SHA384"
- "SHA512"
- "SHA1"
- "MD5"
- "CRC32"

:::hint{type="info"}
CRC32 is only available on firmware versions 4.4.x or later.
:::

## ifHashGenerator

### Hash(obj As Object) As Object

Hashes the payload, which can be supplied in the form of a string (or any object implementing *ifString*) or an *roByteArray*. The hash is returned as an *roByteArray*.

### SetHmacKey(key As Dynamic) As Boolean

Supplies a cryptographic key for the hashing function. This method accepts a plain-text key.

### SetObfuscatedHmacKey(key As String) As Boolean

Supplies a cryptographic key for the hashing function. This method accepts a key that is obfuscated using a shared secret.

### GetFailureReason() As String