tspi_tpm_getcapability(3) [centos man page]

Tspi_TPM_GetCapability(3)				     Library Functions Manual					 Tspi_TPM_GetCapability(3)

						     TCG Software Stack Developer's Reference

NAME

       Tspi_TPM_GetCapability - get information on the capabilities of the TPM

SYNOPSIS

       #include <tss/platform.h>
       #include <tss/tcpa_defines.h>
       #include <tss/tcpa_typedef.h>
       #include <tss/tcpa_struct.h>
       #include <tss/tss_typedef.h>
       #include <tss/tss_structs.h>
       #include <tss/tspi.h>

       TSS_RESULT Tspi_TPM_GetCapability(TSS_HTPM hTPM, 	     TSS_FLAG capArea,
					 UINT32   ulSubCapLength,    BYTE*    rgbSubCap,
					 UINT32*  pulRespDataLength, BYTE**   prgbRespData);

DESCRIPTION

       Tspi_TPM_GetCapability  gets  information  on various capabilities of the TPM. This command can be used to learn how many PCRs the TPM sup-
       ports, etc.

PARAMETERS

   hTPM
       The hTPM parameter is used to specify the handle of the TPM object.

   capArea
       The capArea parameter is the flag indicating the attribute to query. Possible values are:

   ulSubCapLength
       The ulSubCapLength parameter is the length in bytes of the rgbSubCap parameter.

   rgbSubCap
       The rgbSubCap parameter is the data indicating the attribute to query. Possible values are:

   pulRespDataLength
       The pulRespDataLength parameter is the length in bytes of the prgbRespData parameter.

   prgbRespData
       The prgbRespData parameter receives a pointer to the actual data of the specified attribute.

NOTES

       The following Capability Areas and Sub-Capability Areas are supported by 1.1 TSS's:

       TSS_TPMCAP_ORD - query whether an ordinal is supported by the TPM.
	       subCaps: TPM_ORD_* (see tcpa_literals.h)

       TSS_TPMCAP_FLAG - query for the volatile and non-volatile flags inside the TPM. (Must be owner authorized). In this case, the 2 UINT32 val-
       ues will be returned concatenated together in prgbRespData.
	       subCaps: ignored.

       TSS_TPMCAP_ALG - query whether an algorithm is supported by the TPM.
	       subCaps: TSS_ALG_RSA
			TSS_ALG_DES
			TSS_ALG_3DES
			TSS_ALG_SHA
			TSS_ALG_HMAC
			TSS_ALG_AES

       TSS_TPMCAP_PROPERTY - query a property of the TPM.
	       subCaps: TSS_TPMCAP_PROP_PCR
			TSS_TPMCAP_PROP_DIR
			TSS_TPMCAP_PROP_MANUFACTURER
			TSS_TPMCAP_PROP_SLOTS

       TSS_TPMCAP_VERSION - get the TSS_VERSION structure tha identifies the TPM.
	       subCaps: ignored.

RETURN CODES

       Tspi_TPM_GetCapability returns TSS_SUCCESS on success, otherwise one of the following values is returned:

       TSS_E_INVALID_HANDLE
	      hTPM is not a valid handle.

       TSS_E_INTERNAL_ERROR
	      An internal SW error has been detected.

       TSS_E_BAD_PARAMETER
	      One or more parameters is bad.

CONFORMING TO

       Tspi_TPM_GetCapability conforms to the Trusted Computing Group Software Specification version 1.1 Golden

SEE ALSO

       Tspi_TPM_GetCapabilitySigned(3), Tspi_TPM_GetEvent(3).

TSS 1.1 							    2004-05-25						 Tspi_TPM_GetCapability(3)

Check Out this Related Man Page

Tspi_TPM_GetPubEndorsementKey(3)			     Library Functions Manual				  Tspi_TPM_GetPubEndorsementKey(3)

						     TCG Software Stack Developer's Reference

NAME

       Tspi_TPM_GetPubEndorsementKey - create a TSS key object from the TPM's public endorsement key

SYNOPSIS

       #include <tss/platform.h>
       #include <tss/tcpa_defines.h>
       #include <tss/tcpa_typedef.h>
       #include <tss/tcpa_struct.h>
       #include <tss/tss_typedef.h>
       #include <tss/tss_structs.h>
       #include <tss/tspi.h>

       TSS_RESULT Tspi_TPM_GetPubEndorsementKey(TSS_HTPM	hTPM,		 TSS_BOOL  fOwnerAuthorized,
						TSS_VALIDATION* pValidationData, TSS_HKEY* phEndorsementPubKey);

DESCRIPTION

       Tspi_TPM_GetPubEndorsementKey  This function retrieves the public endorsement key (PubEK) from the TPM and creates a TSS key object for it,
       whose handle is returned in phEndorsementPubKey. Due to the fact that different TPM chips validate the PubEK in different ways, application
       verification of the PubEK (using a non-NULL pValidationData is broken.  Tspi_TPM_GetPubEndorsementKey should be called with a NULL pValida-
       tionData parameter to allow the TSS to verify the PubEK itself.

PARAMETERS

   hTPM
       The hTPM parameter is used to specify the handle of the TPM object.

   fOwnerAuthorized
       If TRUE, the TPM owner secret must be provided to get the public endorsement key.  If FALSE, no TPM owner secret must be  provided  to  get
       the public endorsement key.

   pValidationData
       If  non-NULL,  the  application	should	set  the  pValidationData->rgbExternalData  parameter  to  20  bytes of random data before calling
       Tspi_TPM_GetPubEndorsementKey. On successful completion of the command, the structure will provide buffers containing the  validation  data
       and the buffer the validation data was computed from.

   phEndorsementPubKey
       Receives a handle to a key object representing the TPM's public endorsement key.

RETURN CODES

       Tspi_TPM_GetPubEndorsementKey returns TSS_SUCCESS on success, otherwise one of the following values is returned:

       TSS_E_INVALID_HANDLE
	      hTPM is not a valid handle.

       TSS_E_INTERNAL_ERROR
	      An internal SW error has been detected.

       TSS_E_BAD_PARAMETER
	      One or more parameters is bad.

       TPM_E_DISABLED_CMD
	      Reading of PubEK from TPM has been disabled.

CONFORMING TO

       Tspi_TPM_GetPubEndorsementKey conforms to the Trusted Computing Group Software Specification version 1.1 Golden

SEE ALSO

       Tspi_Key_GetPubKey(3).

TSS 1.1 							    2004-05-25					  Tspi_TPM_GetPubEndorsementKey(3)

Linux and UNIX Man Pages

tspi_tpm_getcapability(3) [centos man page]

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