# Crypto - Workflow node | Docs - nodulz

Source: https://nodulz.com/docs/nodes/crypto

Language: en

Provide cryptographic utilities

## Usage and specifics

A hash is one-way. HMAC needs a shared secret and does not encrypt data. Choose the algorithm required by the destination system.

Technical type : `crypto`. Runtime : `nodulz`.

## Credentials and prerequisites

This node defines no dedicated external credential. Remote sources or execution targets may still need their own access credentials.

See the [credentials guide](/docs/credentials) if a remote source or execution target requires access.

## Parameters

Names below are technical keys. Defaults are not a ready-to-run configuration: complete fields required by your operation. Paths containing [] describe list items; some fields depend on the selected mode.

| Parameter | Type | Default | Values / limits |
| --- | --- | --- | --- |
| `operation` | `enum` | `"hash"` | `hash`, `hmac` |
| `algorithm` | `enum` | `"sha256"` | `sha256`, `sha512`, `md5` |
| `input` | `string` | `""` | - |
| `secret` | `string` | `""` | - |

## Initial configuration

Initial catalog configuration example, to adapt before running. Keep secrets in credentials.

```json
{
  "operation": "hash",
  "algorithm": "sha256",
  "input": "",
  "secret": ""
}
```

## Verification

Test with representative data. Check node output in the inspector and logs, then use editor mapping for downstream fields. A trigger test with a simulated payload does not validate external service delivery.

See also : [Expressions and data](/docs/expressions), [Executions](/docs/executions), [Node catalog](/docs/nodes).

## Explore further

- [Features - nodulz](https://nodulz.com/product/overview)
- [Node catalog - nodulz](https://nodulz.com/product/catalog)
- [MCP server - nodulz](https://nodulz.com/product/mcp)
- [Pricing - nodulz](https://nodulz.com/pricing)
- [Use cases and workflow automation - nodulz](https://nodulz.com/use-cases)
- [Choose what your workflows can do. - nodulz](https://nodulz.com/compare)
- [Documentation - nodulz](https://nodulz.com/docs)