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
: If the security tool detects unrecognized changes or a mismatch in the expected signature, it can block execution to protect the Maya environment. Key Security Features Autodesk provides a dedicated Security Tools plugin that automates these checks. Automated Scanning maya secure user setup checksum verification
automatically upon loading if "Active Scanning" is enabled. What is "Secure UserSetup Checksum verification"? : r/Maya import os import hashlib import sys import maya
Utilize Maya's standard Security Tools plugin to scan incoming .ma and .mb scenes from external clients or vendors before they are opened in your pipeline. Key Security Features Autodesk provides a dedicated Security
: Users who frequently update or install new scripts may find the recurring confirmation dialogs tedious. How to Manage the Feature