ActivateCredential error on Nuvoton TPM 2.0

[alishuja]

Hello,
While running the code from the project's README (also attached with the post: tpm_attest .go.txt), I am getting the following error:

ActivateCredential: parameter 2, error code 0x4 : value is out of range or is not correct for the context

The TPM equipped on the device is a Nuvoton TPM 2.0. Following is the output from running Intel's TPM TSS tpm2_tools' (version: 2.1.0) tpm2_dump_capability:

TPM_PT_FAMILY_INDICATOR:
as UINT32: 0x08322e3000
as string: "2.0"
TPM_PT_LEVEL: 0
TPM_PT_REVISION: 1.00
TPM_PT_DAY_OF_YEAR: 0x0000002f
TPM_PT_YEAR: 0x000007df
TPM_PT_MANUFACTURER: 0x4e544300
TPM_PT_VENDOR_STRING_1:
as UINT32: 0x726c7300
as string: "rls"
TPM_PT_VENDOR_STRING_2:
as UINT32: 0x4e504354
as string: "NPCT"
TPM_PT_VENDOR_STRING_3:
as UINT32: 0x20000000
as string: " "
TPM_PT_VENDOR_STRING_4:
as UINT32: 0x20000000
as string: " "
TPM_PT_VENDOR_TPM_TYPE: 0x00000001
TPM_PT_FIRMWARE_VERSION_1: 0x00010003
TPM_PT_FIRMWARE_VERSION_2: 0x00000001

My guess is that the problem lies in ActivateCredential is called for this particular device. Using a test from Intel's tpm2-tools (Attached: tpm2_clear_and_test_activation-221.sh.txt) I get the following error on the same host:
ERROR: ActivateCredential failed. TPM Error:0x80012

On performing a tpm2_rc_decode on the error code, I get:

tpm2_rc_decode 0x80012
error layer
hex: 0x80000
identifier: TSS2_SYS_ERROR_LEVEL
description: Error from the SAPI
base error code
identifier: TSS2_BASE_RC_INSUFFICIENT_CONTEXT
description: Context not large enough

When I execute the same two attached files on another host with a different TPM, they run as expected.

Any help in this regard is greatly appreciated.

Thanks!

Best regards,

[twitchy-jsonp]

I think #238 may have fixed this, can you try again?