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NAME

       Tspi_TPM_StirRandom - add entropy to the TPM random number generator

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_StirRandom(TSS_HTPM hTPM, UINT32 ulEntropyDataLength, BYTE* rgbEntropyData);

DESCRIPTION

       Tspi_TPM_StirRandom adds entropy to the TPM random number generator for
       the purpose of generating better random numbers. The  entropy  variable
       should  assigned  an  appropriately  seeded  random  number before this
       function is called.

PARAMETERS

   hTPM
       The hTPM parameter is used to specify the handle of the TPM object. The
       command to get the TPM to test itself will be sent here.

   ulEntropyDataLength
       The  ulEntropyDataLength  parameter  is  the  length  in  bytes  of the
       rgbEntropyData parameter.

   rgbEntropyData
       The rgbEntropyData parameter is a pointer to the entropy data.

RETURN CODES

       Tspi_TPM_StirRandom 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_StirRandom  conforms  to  the Trusted Computing Group Software
       Specification version 1.1 Golden

SEE ALSO

       Tspi_TPM_GetRandom(3).