1Tspi_TPM_GetRandom(3)      Library Functions Manual      Tspi_TPM_GetRandom(3)
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5                   TCG Software Stack Developer's Reference
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NAME

8       Tspi_TPM_GetRandom - generate a random number on the TPM
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SYNOPSIS

11       #include <tss/platform.h>
12       #include <tss/tcpa_defines.h>
13       #include <tss/tcpa_typedef.h>
14       #include <tss/tcpa_struct.h>
15       #include <tss/tss_typedef.h>
16       #include <tss/tss_structs.h>
17       #include <tss/tspi.h>
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19       TSS_RESULT Tspi_TPM_GetRandom(TSS_HTPM hTPM, UINT32 size, BYTE** random);
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DESCRIPTION

23       Tspi_TPM_GetRandom  gets a good random number for the purpose of gener‐
24       ating symmetric keys, nonces, or seeding a random number generator.
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PARAMETERS

28   hTPM
29       The hTPM parameter is used to specify the handle of the TPM object. The
30       command to get the TPM to test itself will be sent here.
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32   size
33       The size parameter is the number of random bytes requested.
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35   random
36       The random parameter is a pointer to memory containing the random data.
37       This is where the generated number goes. Because this internally  allo‐
38       cates memory, Tspi_Context_FreeMemory should also be used.
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RETURN CODES

42       Tspi_TPM_GetRandom returns TSS_SUCCESS on success, otherwise one of the
43       following values is returned:
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45       TSS_E_INVALID_HANDLE
46              hTPM is not a valid handle.
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49       TSS_E_INTERNAL_ERROR
50              An internal SW error has been detected.
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53       TSS_E_BAD_PARAMETER
54              One or more parameters is bad.
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CONFORMING TO

58       Tspi_TPM_GetRandom conforms to the  Trusted  Computing  Group  Software
59       Specification version 1.1 Golden
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SEE ALSO

63       Tspi_Context_FreeMemory(3).
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68TSS 1.1                           2004-05-25             Tspi_TPM_GetRandom(3)
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