/** @file
|
Header for the RDRAND APIs used by RNG DXE driver.
|
|
Support API definitions for RDRAND instruction access, which will leverage
|
Intel Secure Key technology to provide high-quality random numbers for use
|
in applications, or entropy for seeding other random number generators.
|
Refer to http://software.intel.com/en-us/articles/intel-digital-random-number
|
-generator-drng-software-implementation-guide/ for more information about Intel
|
Secure Key technology.
|
|
Copyright (c) 2013, Intel Corporation. All rights reserved.<BR>
|
(C) Copyright 2015 Hewlett Packard Enterprise Development LP<BR>
|
SPDX-License-Identifier: BSD-2-Clause-Patent
|
|
**/
|
|
#ifndef __RD_RAND_H__
|
#define __RD_RAND_H__
|
|
#include <Library/BaseLib.h>
|
#include <Library/BaseMemoryLib.h>
|
#include <Library/UefiBootServicesTableLib.h>
|
#include <Library/TimerLib.h>
|
#include <Protocol/Rng.h>
|
|
/**
|
Generate high-quality entropy source through RDRAND.
|
|
@param[in] Length Size of the buffer, in bytes, to fill with.
|
@param[out] Entropy Pointer to the buffer to store the entropy data.
|
|
@retval EFI_SUCCESS Entropy generation succeeded.
|
@retval EFI_NOT_READY Failed to request random data.
|
|
**/
|
EFI_STATUS
|
EFIAPI
|
RdRandGenerateEntropy (
|
IN UINTN Length,
|
OUT UINT8 *Entropy
|
);
|
|
#endif // __RD_RAND_H__
|
