Hello
I've question regarding the TPM Quote operation output.
In the TSS v1.2 spec, Quote method is defined as:
TSS_RESULT Tspi_TPM_Quote
(
TSS_HTPM hTPM, // in
TSS_HKEY hIdentKey, // in
TSS_HPCRS hPcrComposite, // in
TSS_VALIDATION* pValidationData // in, out
);
The output structure TSS_VALIDATION is defined as:
typedef struct tdTSS_VALIDATION
{
TSS_VERSION versionInfo;
UINT32 ulExternalDataLength;
BYTE* rgbExternalData;
UINT32 ulDataLength;
BYTE* rgbData;
UINT32 ulValidationLength;
BYTE* rgbValdationData;
} TSS_VALIDATION
rgbData buffer above is basically 48 bytes long TPM_QUOTE_INFO structure which
contains the 4 bytes version, and 4 bytes TPM Ordinal (QUOT), 20 bytes hash of
TPM_PCR_COMPOSITE structure and 20 bytes external data.
But in the TPM Main Specification, Part 3 Commands v1.2:
TPM_PCR_COMPOSITE structure itself and not a hash of it is amongst others, one
of the outputs.
So my question is, Trousers implementation should output TPM_PCR_COMPOSITE
structure and not the TPM_Quote_Info?
I would appreciate any thoughts and inputs.
Best regards
Sansar Choinyambuu------------------------------------------------------------------------------
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