Tspi_TPM_GetAuditDiTCGtSoftware Stack Developer's ReTspi_TPM_GetAuditDigest(3)NAMETspi_TPM_GetAuditDigest - retrieve the audit digest.
SYNOPSIS
#include <tss/tspi.h>
TSS_RESULT Tspi_TPM_GetAuditDigest(TSS_HTPM hTpm, TSS_HKEY hKey,
TSS_BOOL closeAudit, UINT32* pulAuditDigestSize,
BYTE** prgbAuditDigest, TPM_COUNTER_VALUE* pCounterValue,
TSS_VALIDATION* pValidationData, UINT32* ordSize,
UINT32** ordList);
DESCRIPTIONTspi_TPM_GetAuditDigest is used to retrieve the audit digest. The au‐
dit digest may be signed or unsigned. If the audit digest is signed
(hKey is non-NULL) then the current audit digest, the current audit
counter and, optionally, the hash of the audited ordinal list and a
signature are returned. If the audit digest is not signed (hKey is
NULL) then the current audit digest, the current audit counter and the
full list of audited ordinals is returned.
PARAMETERS
hTpm
Handle of the TPM object.
hKey
Handle of the signature key object (the handle can be NULL).
closeAudit
A flag indicating whether or not to close the current audit digest af‐
ter it is signed. This parameter is ignored if hKey is NULL.
pulAuditDigestSize
Pointer to the size of the returned audit digest.
prgbAuditDigest
Pointer to a buffer that holds the returned audit digest.
pCounterValue
Pointer to a TPM_COUNTER_VALUE structure that holds the returned audit
counter.
pValidationData
Pointer to a validation data structure. The validation data structure
provides external information required to compute the signature. On
input, the fields representing the ExternalData must contain an anti-
replay nonce that will be used in the signing operation. On output,
this structure provides a buffer containing the data used to compute
the validation data and a buffer containing the validation data (a sig‐
nature generated by signing the data using the key referenced by hKey).
If this parameter is NULL then the TSS will perform the validation.
This parameter is ignored if hKey is NULL.
ordSize
Pointer to the number of ordinals in the returned audited ordinal list.
This parameter is ignored if hKey is non-NULL.
ordList
Pointer to a buffer that holds the returned audited ordinal list. This
parameter is ignored if hKey is non-NULL.
RETURN CODESTspi_TPM_GetAuditDigest returns TSS_SUCCESS on success, otherwise one
of the following values are returned:
TSS_E_INVALID_HANDLE
TSS_E_BAD_PARAMETER
TSS_E_INTERNAL_ERROR - An error occurred internal to the TSS.
CONFORMING TOTspi_TPM_GetAuditDigest conforms to the Trusted Computing Group Soft‐
ware Specification Version 1.2
TSS 1.2 2007-06-27 Tspi_TPM_GetAuditDigest(3)
