This example is derived from linux-sgx-remoteattestation. Only the enclave is rewrote into Rust. Please refer to the following Readme for further detail.
For users' convenience, we simply add SGX_MODE=HW SGX_PRERELEASE=1
into Makefile and just run make
in both ServiceProvider
and Application
.
btw. Dependencies include libjsoncpp-dev
which is missing from below.
There are two set of crt/keys in GeneralSettings.h.
server_crt
and server_key
is for the connection between Service Provider and Application. This is not used in IAS connection.
static const char *ias_crt = "";
This is the path of the client cert generated for IAS registration. During the IAS registration, one always generates two files: client.crt
and client.key
. Use the following commands to combine them into one PEM file and place it here:
$ openssl pkcs12 -export -in ./client.crt -inkey client.key > client.p12 Enter Export Password: Verifying - Enter Export Password: $ openssl pkcs12 -in client.p12 -out client.pem -clcerts Enter Import Password: MAC verified OK Enter PEM pass phrase: Verifying - Enter PEM pass phrase:
Then the settings should be:
static const char *ias_crt = "client.pem"
During Remote attestation, the PEM pass phrase would be required.
As the most simple setup, one can just use IAS client crt/key for server_crt
and server_key
. It works.
Please check your signature policy and set it up here and here. Wrong signature policy would trigger IAS HTTP error code 400 in MSG3.
Example of a remote attestation with Intel's SGX including the communication with IAS.
The code requires the installation of Intel SGX here and the SGX driver here. Furthermore, also a developer account for the usage of IAS has be registered Deverloper account. After the registration with a certificate (can be self-signed for development purposes), Intel will respond with a SPID which is needed to communicate with IAS.
The code consists of two separate programs, the ServiceProvider and the Application. The message exchange over the network is performed using Google Protocol Buffers.
Before running the code, some settings have to be set in the GeneralSettings.h
file:
openssl req -x509 -nodes -newkey rsa:4096 -keyout server.key -out sever.crt -days 365
To be able to run the above code some external libraries are needed:
libprotobuf-dev
, libprotobuf-c0-dev
and protobuf-compiler
libboost-thread-dev
, libboost-system-dev
curl
, libcurl4-openssl-dev
libssl
liblog4cpp5-dev
After the installation of those dependencies, the code can be compiled with the following commands:
cd ServiceProvider
make
cd ../Application
make SGX_MODE=HW SGX_PRERELEASE=1