Secure Encrypted Interaction Workflow for WhatsApp

This n8n workflow manages encrypted user interactions through WhatsApp Flows by decrypting incoming data, parsing user screens, and responding securely with encrypted data exchanges. It begins with a webhook to receive encrypted information, which is then decrypted with a custom RSA-AES hybrid process. Based on the extracted screen information, the workflow routes to different processing nodes—for example, handling appointment scheduling or seat selection data. The system processes user inputs, groups or extracts relevant information, and encrypts responses with AES-GCM before sending back to the user. This workflow is ideal for scenarios where secure, encrypted communication is necessary between a chatbot or web app and backend systems, ensuring data privacy and integrity during sensitive exchanges.