[TrouSerS-users] Wrap key fails with "Invalid Keyhandle"

[zakkir hussain Kharim]

*We are trying to wrap a private key using storage root key using the
"create_tpm_key" tool which is part of openssl tpm engine. But it is
failing. We tried to debug this in multiple ways, but not able to get what
is wrong. *



*Command Executed: *

# create_tpm_key -w private.pem rsmpvtkey.blob

SRK Password:



################################### result=12

create_tpm_key.c:444 Tspi_Key_WrapKey result: 0xc (Invalid keyhandle)





*TPM trousers code:*



File: tspi/tspi_key.c

Function : Tspi_Key_GetPubKey





if ((result = TCS_API(tspContext)->GetPubKey(tspContext,
tcsKeyHandle, pAuth,

pulPubKeyLength,
prgbPubKey)))

{

printf("\n ###################################
result=%d\n",result);

return result; // returns value 12

}





*Version details: *

trousers-0.3.13

openssl_tpm_engine-0.4.2

tpm-tools-1.3.8





*tpm version*

TPM 1.2 Version Info:

Chip Version: 1.2.3.16

Spec Level: 2

Errata Revision: 2

TPM Vendor ID: IFX

Vendor Specific data: 0310000a 00

TPM Version: 01010000

Manufacturer Info: 49465800