How to fix the error in Intel SGX for Linux

ryo_hamamoto — Tue, 06 Dec 2016 11:20:41 GMT

Currently, I'm executing the Intel SGX sample codes in the intel SGX SDK, but I cannot execute the app in the ubuntu 14.04.

My execution environment is as follows:
PC: DELL Latitude E7270
CPU: Intel Core-i7 6600-U
OS: Ubuntu 14.04
Intel SGX Driver, PSW, SDK version: 1.6

The sample code is compiled by Makefile(command line).
The compile option is "SGX_MODE=HW SGX_PRERELEASE=1"
When I execute the app. the error message is appered at the terminal as follows.

---

nec-user@necuser-Latitude-E7270:~/SGX/DRIVERS/SampleCode/SampleEnclave$ make SGX_MODE=HW SGX_PRERELEASE=1
GEN => App/Enclave_u.c
CC   <= App/Enclave_u.c
CXX <= App/App.cpp
CXX <= App/Edger8rSyntax/Arrays.cpp
CXX <= App/Edger8rSyntax/Functions.cpp
CXX <= App/Edger8rSyntax/Pointers.cpp
CXX <= App/Edger8rSyntax/Types.cpp
CXX <= App/TrustedLibrary/Libc.cpp
CXX <= App/TrustedLibrary/Libcxx.cpp
CXX <= App/TrustedLibrary/Thread.cpp
LINK => app
GEN => Enclave/Enclave_t.c
CC   <= Enclave/Enclave_t.c
CXX <= Enclave/Enclave.cpp
CXX <= Enclave/Edger8rSyntax/Arrays.cpp
CXX <= Enclave/Edger8rSyntax/Functions.cpp
CXX <= Enclave/Edger8rSyntax/Pointers.cpp
CXX <= Enclave/Edger8rSyntax/Types.cpp
CXX <= Enclave/TrustedLibrary/Libc.cpp
CXX <= Enclave/TrustedLibrary/Libcxx.cpp
CXX <= Enclave/TrustedLibrary/Thread.cpp
LINK => enclave.so
<EnclaveConfiguration>
    <ProdID>0</ProdID>
    <ISVSVN>0</ISVSVN>
    <StackMaxSize>0x40000</StackMaxSize>
    <HeapMaxSize>0x100000</HeapMaxSize>
    <TCSNum>10</TCSNum>
    <TCSPolicy>1</TCSPolicy>
    <DisableDebug>0</DisableDebug>
    <MiscSelect>0</MiscSelect>
    <MiscMask>0xFFFFFFFF</MiscMask>
</EnclaveConfiguration>
Succeed.
SIGN => enclave.signed.so

nec-user@necuser-Latitude-E7270:~/SGX/DRIVERS/SampleCode/SampleEnclave$ ./app
Please use the correct uRTS library from PSW package.
Error: Unexpected error occurred.
Enter a character before exit ...
---

Please explain how to execute the sample program using HW mode? (wrong something?)
I configured aesmd.conf in order to use the proxy.
Moreover, I can execute the sample code when the simulation mode is used.

Best regards,

Hi, Ryo.

Rodolfo_S_ — Tue, 06 Dec 2016 15:27:09 GMT

Hi, Ryo.

I believe your problem is similar to the one addressed here. You could refer to it, and see if this solves your problem.

Best regards,

Rodolfo

Dear Rodolfo

ryo_hamamoto — Wed, 07 Dec 2016 00:13:00 GMT

Dear Rodolfo

Thank you for your kind reply.
I can execute Intel SGX Sample codes with HW mode.

Your advice is very useful.

Best regards,

Ryo

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

How to fix the error in Intel SGX for Linux

Hi, Ryo.

Dear Rodolfo