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Elephant
Beginner
108 Views

Sealing with MRSIGNER

Hi,

I am currently doing a Sealing experiment.  When I seal some chunk of data on one machine with an enclave signed with SIGNA.pem, will I be able to unseal it on another machine with the same enclave code signed with SIGNA.pem too?

It returns the following error: SGX_ERROR_INVALID_CPUSVN.  Why is this so?  Is this the expected result given the scenario above?

Thanks!

Kind Regards,
Elephant

 

 

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2 Replies
Hoang_N_Intel
Employee
108 Views

The unsealing process must be done in the same system because the sealed data is encrypted in the enclave, using the encryption key that is derived from the CPU specific to that system.

For more information about sealing, please watch this video https://software.intel.com/en-us/videos/how-to-seal-data-in-intel-sgx

you_w_
New Contributor III
108 Views

The Sealing key is derived from both MRSIGNER and Platform information, Thus you can only unseal it on a same  platform.

Regards,

you

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