WhatsApp Crypt Tool to Encrypt and Decrypt WhatsApp Backups

This document outlines wa-crypt-tools, an open-source toolkit that decrypts and encrypts WhatsApp and WhatsApp Business backup formats (.crypt12/.crypt14/.crypt15) using provided keys, with commands like wadecrypt for decryption and waencrypt (beta) for encryption. It details deployment via Google Colab, pip, Jupyter, and GitHub, highlights supporting utilities (wainfo, wacreatekey, waguess), and notes use in mobile forensics and research. The report also discusses compatibility constraints (tested up to WhatsApp 2.24.x), limitations without valid keys, and best practices for key management and E2EE backups.