Verify Slack Webhook Signature for Enhanced Security

• Validate incoming Slack messages to prevent unauthorized access
• Enhance application security by verifying webhook signatures
• Ensure data integrity in Slack integrations

Receive a message from Slack via a webhook Generate a signature base string using the request timestamp and body Encode the signing secret with HMAC SHA256 Compare the generated signature with the request signature Trigger an error if signatures do not match or proceed if they do

1. 1
   Import the workflow template into your n8n instance
2. 2
   Set your Slack Signing Secret in the designated node
3. 3
   Connect the workflow to your Slack Webhook trigger
4. 4
   Test the workflow to ensure signature verification is functioning correctly