How to protect intellectual property (IP) with an FMU exported from Simulink in R2020b?

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There are two different kinds of functional mockup unit (FMU) which can be exported from Simulink:
  1. Standalone FMU - For more details and to access its release-specific documentation, please run the following command in the command window of MATLAB R2020b:
    >> web(fullfile(docroot, 'slcompiler/ug/simulinkfmuexample.html'))
  2. Tool-Coupling FMU - For more details and to access its release-specific documentation, please run the following command in the command window of MATLAB R2020b:
    >> web(fullfile(docroot, 'simulink/ug/export-model-as-tool-coupling-fmu.html'))
Which kind of FMU should I choose if my goal is IP protection?

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MathWorks Support Team
MathWorks Support Team il 24 Gen 2025 alle 0:00
Modificato: MathWorks Support Team il 4 Feb 2025 alle 6:30
The FMI standard does not specify anything related to IP protection; however, "Standalone" FMU exports provide some degree of IP protection.
Standalone FMU:
Since Simulink Compiler uses the Simulink Coder infrastructure, FMU Export obtains some level of IP protection:
  • Compiled binaries: the original Simulink model/source code is compiled into binary form (the user cannot recover the original Simulink model)
  • Obfuscated symbols: C function and global variable names are obfuscated after code generation (the user cannot recover meaningful source code function/symbol names)
What FMU export does not provide:
  • Obfuscated constants (the user cannot recover meaningful string literals and numerical constants)
  • Additional encryption of the dynamic library file (the user cannot recover the original memory layout)
  • Password protection for the FMU zip package (the user cannot decrypt the FMU without a password)
Tool-Coupling FMU:
There is no level of IP protection.
Other approaches to protect the IP of your Simulink model that do not involve FMUs are mentioned in the following MATLAB Answers post:
Please follow the below link to search for the required information regarding the current release:

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