Introduction to Library Functions Tspi_TPM_GetRandom(3)
TCG Software Stack Developer's ReferenceNAME
Tspi_TPM_GetRandom - generate a random number on the TPM
SYNOPSIS
#include
#include
#include
#include
#include
#include
#include
TSS_RESULT Tspi_TPM_GetRandom(TSS_HTPM hTPM, UINT32 size, BYTE** random
DESCRIPTION
Tspi_TPM_GetRandom gets a good random number for the purpose
of generating symmetric keys, nonces, or seeding a random number generator.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. size The size parameter is the number of random bytes requested. random The random parameter is a pointer to memory containing therandom data. This is where the generated number goes. Be-
cause this internally allocates memory,Tspi_Context_FreeMemory should also be used.
RETURN CODESTspi_TPM_GetRandom 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
TSS 1.1 Last change: 2004-05-25 1
Introduction to Library Functions Tspi_TPM_GetRandom(3)
One or more parameters is bad. CONFORMING TOTspi_TPM_GetRandom conforms to the Trusted Computing Group
Software Specification version 1.1 GoldenSEE ALSO
Tspi_Context_FreeMemory(3).
ATTRIBUTES
See attributes(5) for descriptions of the following attri-
butes:__________________________________________________
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
|____________________|_____________________________|_
| Availability | library/security/trousers ||____________________|_____________________________|_
| Interface Stability| Uncommitted ||____________________|____________________________|
NOTES Source for trousers is available at http://opensolaris.organd at http://sourceforge.net/projects/trousers. Documenta-
tion is available at file:///usr/share/man, and http://sourceforge.net/projects/trousers.TSS 1.1 Last change: 2004-05-25 2