On 12/6/2019 2:50 AM, Kyoungwon Kim wrote:
One more thing: after installing trousers and ownership has been taken,
I tried to run tpm_getpubek and now it's showing me this error message:
Tspi_TPM_GetPubEndorsementKey failed: 0x00000008 - layer=tpm, code=0008
(8), The TPM target command has been disabled
This is likely because the tool is using ReadPubek and the command is
disabled by the readPubek flag false. takeownership sets readPubek false.
After takeownership, owner auth is needed to read the EK. Use the
OwnerReadInternalPub command.
then,
Tspi_TPM_GetPubEndorsementKey failed: 0x00000803 - layer=tpm, code=0803
(2051), TPM is defending against dictionary attacks and is in some
time-out period
If that's happening, perhaps the tool tries both commands and you're not
specifying the correct owner auth.
I believe that trousers has tracing capability. Can you post the
actual commands that the tool is sending to the TPM.
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