topic I assume that if you really in Intel® Software Guard Extensions (Intel® SGX)

How to pass a parameter which the type is a class

dai_c_ — Mon, 30 Oct 2017 09:56:39 GMT

Hello guys:

I am a freshman of SGX, I want protect a function which its parameter is a class，and how can I pass it to enclave?

for example:

and edl file not support "class"

Hi dai c.:

you_w_ — Tue, 31 Oct 2017 07:04:28 GMT

Hi dai c.:

Actually the interface for sgx can only be write with C programming language. You can use struct instead.

Regards

you

I assume that if you really

Hoang_N_Intel — Tue, 31 Oct 2017 16:40:39 GMT

I assume that if you really want to use C++, you can use C++ object serialization technique to get in and out the Enclave instead of using struct. But it does add some overhead.

Quote:Hoang Nguyen (Intel)

dai_c_ — Thu, 02 Nov 2017 01:41:00 GMT

Hoang Nguyen (Intel) wrote:

I assume that if you really want to use C++, you can use C++ object serialization technique to get in and out the Enclave instead of using struct. But it does add some overhead.

Yes,It's a good idea! I have a try in C++ object serialization technique,but many header files used by serialization is unsupported in SGX, SDK e.g./boost/archive/text_oarchive.hpp ,boost/archive/text_iarchive.hpp. and also some frequently used header files in C++ is unsupported in SGX SDK,like iostream,sstream and so on.

Quote:you w. wrote:

dai_c_ — Thu, 02 Nov 2017 01:52:00 GMT

you w. wrote:

Hi dai c.:

Actually the interface for sgx can only be write with C programming language. You can use struct instead.

Regards

you

Actually, I use SGX SDK to protect some modules of a massive C++ project, and it's hard to change class into struct. and the mainly problem is I can't pass C++ object by edl file