Maya Secure User Setup Checksum Verification _verified_ ⏰ 💎

import hashlib def generate_checksum(file_path): sha256_hash = hashlib.sha256() with open(file_path, "rb") as f: # Read the file in chunks to handle larger files efficiently for byte_block in iter(lambda: f.read(4096), b""): sha256_hash.update(byte_block) return sha256_hash.hexdigest() master_setup_path = "/network/pipeline/maya/config/userSetup.py" print(f"Master Checksum: generate_checksum(master_setup_path)") Use code with caution. Step 2: Deploy the Bootstrap Launcher

For the end user, the verification runs silently in the background. There’s no extra step like typing a code or solving a CAPTCHA. The only noticeable difference is a slightly longer setup time (typically 1–3 seconds), which is a fair trade-off for security.

import os import hashlib import sys import maya.cmds as cmds # Configuration: Define trusted files and their expected SHA-256 hashes TRUSTED_MANIFEST = "/network/secure/pipeline/maya/scripts/pipeline_core.py": "e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855", "/network/secure/pipeline/maya/scripts/ui_tools.py": "8fa62a5b4c1d2e3f4a5b6c7d8e9f0a1b2c3d4e5f6a7b8c9d0e1f2a3b4c5d6e7f" def calculate_sha256(file_path): """Generates the SHA-256 hash of a file.""" sha256_hash = hashlib.sha256() try: with open(file_path, "rb") as f: # Read file in chunks to handle larger files efficiently for byte_block in iter(lambda: f.read(4096), b""): sha256_hash.update(byte_block) return sha256_hash.hexdigest() except FileNotFoundError: return None def verify_and_execute(): """Verifies hashes and executes scripts only if they are authentic.""" for script_path, expected_hash in TRUSTED_MANIFEST.items(): if not os.path.exists(script_path): error_msg = f"[SECURITY ALERT] Critical pipeline script missing: script_path" cmds.error(error_msg) sys.exit(error_msg) current_hash = calculate_sha256(script_path) if current_hash != expected_hash: alert_msg = ( f"[SECURITY BREACH] Checksum verification failed for: script_path\n" f"Expected: expected_hash\n" f"Got: current_hash" ) # Stop execution immediately to protect the session cmds.error(alert_msg) sys.exit(alert_msg) # If all checks pass, safely import the pipeline print("[SECURITY] Checksum verification successful. Executing secure user setup.") import_pipeline_modules() def import_pipeline_modules(): """Actual initialization code goes here.""" # Example: # import pipeline_core # pipeline_core.init() pass # Run verification on startup verify_and_execute() Use code with caution. Step 3: Maya Preferences Hardening maya secure user setup checksum verification

Found on the Autodesk download page or documentation.

Deploy a locked down initialization script that acts as the gatekeeper. Step-by-Step Implementation in Python The only noticeable difference is a slightly longer

Avoid hardcoding hash values directly into local client scripts whenever possible. Instead, store your authorized hashes in a secure, central repository, such as:

Navigate to the folder where you downloaded the Maya installer (e.g., cd Downloads ). Step 3: Maya Preferences Hardening Found on the

If you use a like ShotGrid or OpenPipelined How many workstations you need to deploy this to

Automated installers:

, where they can manage "Read and execute 'userSetup' scripts" permissions. Implementation Recommendations