topic Hi Charlotte, in Intel® Software Guard Extensions (Intel® SGX)

Using enclave in a Windows Forms Application ?

Charlotte_P_ — Wed, 29 Jun 2016 14:54:54 GMT

Hello,

I would like to use an enclave in a Windows Forms Application (C#). Is it possible to do it ? Can I wrap an enclave library in another library ?

Thanks

Charlotte

Hi Charlotte,

Surenthar_S_Intel — Wed, 29 Jun 2016 15:41:00 GMT

Hi Charlotte,

SGX application has dependency, we can build SGX enclave on C, C++ language only.

If external applications(JAVA,C# etc) wants to use SGX enclave, then developer need to create additional layer to communicate with SGX enclave. It increases application complexity and potentially increases the attack surface.

Thanks and Regards,

Surenthar Selvaraj

Yes, you can load enclaves in

Francisco_C_Intel — Wed, 29 Jun 2016 18:09:41 GMT

Yes, you can load enclaves in your C# application. Use whatever mechanism you normally use to call native C functions (sgx_create_enclavew) in non-managed DLLs (sgx_urts.dll).

Note that in the 1.1 version of the our runtime you may run into an issue (that has since been fixed) with COM thread initialization.

Basically, you will need to set the threading type of your C# Main function to [STAThread]. See below for an example.

        …
        [STAThread]
        static void Main(string[] args)
        …