How to protect intellectual property (IP) with an FMU exported from Simulink in R2020b?
There are two different kinds of functional mockup unit (FMU) which can be exported from Simulink:
- Standalone FMU
- Tool-Coupling FMU
Which kind of FMU should I choose if my goal is IP protection?
ANSWER
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The FMI standard does not specify anything related to IP protection, however “Standalone” FMU exports get some degree of IP protection.
Standalone FMU:
Since Simulink Compiler uses the Simulink Coder infrastructure, FMU Export gets some level of IP protection:
- Compiled binaries: the original Simulink model/source code are compiled into binary form (user cannot recover original Simulink model)
- Obfuscated symbols: C function and global variable names are obfuscated after code generation (user cannot recover meaningful source code function/symbol names)
What FMU export does not have:
- Obfuscated constants (user cannot recover meaningful string literals and numerical constants)
- Additional encryption of dynamic library file (user cannot recover original memory layout)
- Password protection for FMU zip package (user cannot decrypt FMU without password)
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