Tspi_TPM_GetRandom(3) Library Functions Manual Tspi_TPM_GetRandom(3)
TCG Software Stack Developer's Reference
NAME
Tspi_TPM_GetRandom - generate a random number on 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_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 the random data. This is where the generated number goes. Because this internally
allocates memory, Tspi_Context_FreeMemory should also be used.
RETURN CODES
Tspi_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
One or more parameters is bad.
CONFORMING TO
Tspi_TPM_GetRandom conforms to the Trusted Computing Group Software Specification version 1.1 Golden
SEE ALSO Tspi_Context_FreeMemory(3).
TSS 1.1 2004-05-25 Tspi_TPM_GetRandom(3)
Check Out this Related Man Page
Tspi_TPM_SetStatus(3) Library Functions Manual Tspi_TPM_SetStatus(3)
TCG Software Stack Developer's Reference
NAME
Tspi_TPM_SetStatus - modify the TPM's status
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_SetStatus(TSS_HTPM hTPM, TSS_FLAG statusFlag,
TSS_BOOL fTpmState);
DESCRIPTION
Tspi_TPM_SetStatus alters the status of the TPM. Depending on the chosen statusFlag, fTpmState may or may not be ignored. This command re-
quires that the TPM be on and the handle to the TPM available. This command is not currently implemented.
PARAMETERS
hTPM
The hTPM parameter is used to specify the handle of the TPM object.
statusFlag
The statusFlag parameter is what the TPM status should be set to.
fTpmState
The fTpmState parameter is the status value to set. For some states, this flag is ignored.
RETURN CODES
Tspi_TPM_SetStatus 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_SetStatus conforms to the Trusted Computing Group Software Specification version 1.1 Golden
SEE ALSO Tspi_TPM_GetStatus(3), Tspi_TPM_GetCapability(3).
TSS 1.1 2004-05-25 Tspi_TPM_SetStatus(3)
Im new to C, and Im having a hard time getting a random number.
In bash, I would do something similar to the following to get a random number;
#!/bin/bash
seed1=$RANDOM
seed2=$RANDOM
seed3=$RANDOM
SEED=`expr $seed1 * $seed2 / $seed3`
echo ${SEED%.*}
Now, in online examples... (4 Replies)
Lets say I want to pick a random file when I do an "ls" command. I don't have set number of files in each directory.
ls | head -1
This gives me the first one in each directory, is there a way to do the same but pick a random one. (3 Replies)
Hello.
Could anyone help me with my little annoying problem?
I have to generate a 512 MB file made up with random data using DD. After some internet digging I found out that the command is:
dd if=/dev/urandom of=/exemple/file bs=512MB
After running this command the... (2 Replies)