Why are Digital Signatures and Digital Rights not supported in DWG files?
Product: MicroStation V8Version: 08.00.00.00Area: Security/Digital Rights
AutoDESK uses a different file encryptions to Bentley and for this reason, Bentley cannot support Digital Rights when DWG files are opened or when DGN files are saved to DWG.
However, MicroStation has the ability to open password-protected DWG files.
When attempting to open a password protected file, the Password dialog box prompts the user to enter the password.
Digital signature in DWG file is not supported yet. Digital signature is done outside of RealDWG. Review the following thread for more explanations here