[tpm2] Re: Persisted primary key not usable, tpm2-tools 4.0.0

[tpm2] Re: Persisted primary key not usable, tpm2-tools 4.0.0

[Tadeusz Struk]

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On 10/15/19 3:06 PM, Steven Clark wrote:
> root(a)localhost:~# tpm2_evictcontrol -C o -c prim.ctx 0x81000001
> persistent-handle: 0x81000001
> action: persisted
> 
> root(a)localhost:~# tpm2_readpublic -c 0x81000001
> WARNING:esys:../tpm2-tss/src/tss2-esys/api/Esys_ReadPublic.c:320:Esys_ReadPublic_Finish()
> Received TPM Error
> ERROR:esys:../tpm2-tss/src/tss2-esys/api/Esys_ReadPublic.c:104:Esys_ReadPublic()
> Esys Finish ErrorCode (0x0000018b)
> ERROR: Esys_ReadPublic(0x18B) - tpm:handle(1):the handle is not correct
> for the use
> ERROR: Unable to run tpm2_readpublic

That looks quite strange. Could you try to list the handles with
tpm2_getcap handles-persistent and tpm2_getcap handles-transient
after evictcontrol command to see if it really worked.

--
Tadeusz

[tpm2] Re: Persisted primary key not usable, tpm2-tools 4.0.0

[Roberts, William C]

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Interesting thanks for the update. Sorry we weren't of much help, but I am glad you think
you figured it out.

> -----Original Message-----
> From: Steven Clark [mailto:davolfman(a)gmail.com]
> Sent: Monday, October 28, 2019 5:57 PM
> To: Struk, Tadeusz <tadeusz.struk(a)intel.com>
> Cc: tpm2(a)lists.01.org
> Subject: [tpm2] Re: Persisted primary key not usable, tpm2-tools 4.0.0
> 
> I installed the 32-bit versions of my packages on a relevant system and I'm able to
> read the public portion of a persisted primary object with the ABRMD running.  I
> remember having to force install my packages on the first test system due to a
> dependency/version snarl I inflicted upon myself.  For the time being my
> problem is probably not a problem and if it re-appears stands a good chance of
> being a build system recipe problem instead of a code problem.
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[tpm2] Re: Persisted primary key not usable, tpm2-tools 4.0.0

[Steven Clark]

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I installed the 32-bit versions of my packages on a relevant system
and I'm able to read the public portion of a persisted primary object
with the ABRMD running.  I remember having to force install my
packages on the first test system due to a dependency/version snarl I
inflicted upon myself.  For the time being my problem is probably not
a problem and if it re-appears stands a good chance of being a build
system recipe problem instead of a code problem.

[tpm2] Re: Persisted primary key not usable, tpm2-tools 4.0.0

[Steven Clark]

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I checked the handles and it showed up as persistent and not as transient.
Then I deactivated the TABRMD and attempted access through the device TCTI
and it worked.  I won't be able to do much more for until the end of the
month but it looks like the problem is in the resource manager.

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