Securely Verify Incoming Webhook Data with SHA256 Hashing
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This n8n workflow ensures the integrity of incoming webhook requests by verifying a CRC token using SHA256 HMAC hashing. It automatically generates a response token for secure communication with your services.
About This Workflow
This n8n workflow is designed to enhance the security of your webhook integrations. It starts by receiving data via a webhook. The crucial step involves using the Crypto node to perform a SHA256 HMAC hash on a provided crc_token from the incoming request. This hashing process utilizes a secret API key to ensure that the data hasn't been tampered with during transit. The resulting hash is then processed by a Set node, which generates a response_token based on the hashed data. This entire process allows you to reliably authenticate and validate incoming webhook payloads, preventing unauthorized or malicious data from affecting your applications.
Key Features
- Real-time webhook data reception.
- Robust SHA256 HMAC hashing for data integrity.
- Secure verification using a pre-defined API secret.
- Automated generation of a response token for authenticated communication.
- Simple, event-driven security layer for your integrations.
How To Use
- Webhook Node Setup: Configure the Webhook node to receive incoming requests at your desired path. Ensure the
responseModeis set tolastNodeto capture the final output. - Crypto Node Configuration: In the Crypto node, set the
typetoSHA256. For thevalueparameter, use the expression={{$json["query"]["crc_token"]}}to reference the CRC token from the incoming webhook data. Set theactiontohmacand provide your secret API key in thesecretfield. - Set Node Configuration: In the Set node, create a new string value named
response_token. Use the expressionsha256={{$json["data"]}}to generate the response token from the hashed data outputted by the Crypto node. EnsurekeepOnlySetis enabled to output only the generated token.
Apps Used
Workflow JSON
{
"id": "998d37a8-ccc1-4174-be37-4c05805e2cf0",
"name": "Securely Verify Incoming Webhook Data with SHA256 Hashing",
"nodes": 7,
"category": "DevOps",
"status": "active",
"version": "1.0.0"
}Note: This is a sample preview. The full workflow JSON contains node configurations, credentials placeholders, and execution logic.
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ID: 998d37a8-ccc1...
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