3 Replies Latest reply on Aug 18, 2017 6:26 AM by Carlos_A

    Intel PTT Endorsement Key

    DaolinChen Community Member

      EK is needed when do hlk test such "TPM 2.0 Core Provisioning Test" on win10 RS2.

      So how can we do the online Endorsement Key Certificate provisioning?

        • Re: Intel PTT Endorsement Key
          Carlos_A Brown Belt

          Hello, DaolinChen:


          Thank you for contacting Intel Embedded Community.


          In order to have a better idea of your request, could you please tell us if the design related to this is a third party one or it has been developed by you? In case that it is a third party one, could you please give us all the information related to it? If it is your design, could you please let us know the part number of the processor and chipset used to implement it?


          Thanks in advance for your help to find the information that can help you in the best way possible.


          Best regards,


            • Re: Intel PTT Endorsement Key
              DaolinChen Community Member

              Hello Carlos_A,

                Thanks for your great support!

                Refer to "548200: Security Enableing: Boot Guard, Intel PTT and BIOS Guard", for sku shipped after 1/1/2015,

              Online provisioning of Endorsement Certificates will start automatically when system boots to OS with successful

              nwetwork conection to intel.com for the first time.

                But we found that some pre-production PCH can't do this successfully.

                We test failed about WHQL item "TPM 2.0 Core Provisioning Test" on intel KBL-S UDIMM KBP DDR4 CRB (I5-7500T CPU and Q270 A0 Pre-Production Pch),

              because there's no EK in intel PTT. And there's no certification in windows's regedit item "SYSTEM\CurrentControlSet\Services\Tpm\WMI\Endorsement\EKCertStreo\Certificates".

              Does online provisioning of EK need some specific conditions such as production version of CPU/PCH...?