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Man Pages


Manual Reference Pages  -  TSPI_TPM_GETAUDITDIGEST (3)

NAME

Tspi_TPM_GetAuditDigest - retrieve the audit digest.

CONTENTS

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);

DESCRIPTION

Tspi_TPM_GetAuditDigest is used to retrieve the audit digest. The audit 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 after 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 signature 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 CODES

Tspi_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 TO

Tspi_TPM_GetAuditDigest conforms to the Trusted Computing Group Software Specification Version 1.2

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TSS 1.2 TSPI_TPM_GETAUDITDIGEST (3) 2007-06-27

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