MdePkg: Add RngLib into MdePkg

Add one library class (RngLib.h) with three GetRandomNumber16/32/64
APIs to provide random number generator services, and one library
instance (BaseRngLib), based on Intel RdRand instruction access,
to provide high-quality random numbers generator.

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Qin Long <qin.long@intel.com>
Reviewed-by: Michael Kinney <michael.d.kinney@intel.com>
Reviewed-by: Liming Gao <liming.gao@intel.com>

git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@18519 6f19259b-4bc3-4df7-8a09-765794883524
This commit is contained in:
Qin Long
2015-09-21 05:54:03 +00:00
committed by qlong
parent 3cfc7813bb
commit 255c8e22a5
6 changed files with 272 additions and 0 deletions

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/** @file
Provides random number generator services.
Copyright (c) 2015, Intel Corporation. All rights reserved.<BR>
This program and the accompanying materials
are licensed and made available under the terms and conditions of the BSD License
which accompanies this distribution. The full text of the license may be found at
http://opensource.org/licenses/bsd-license.php
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
**/
#ifndef __RNG_LIB_H__
#define __RNG_LIB_H__
/**
Generates a 16-bit random number.
if Rand is NULL, then ASSERT().
@param[out] Rand Buffer pointer to store the 16-bit random value.
@retval TRUE Random number generated successfully.
@retval FALSE Failed to generate the random number.
**/
BOOLEAN
EFIAPI
GetRandomNumber16 (
OUT UINT16 *Rand
);
/**
Generates a 32-bit random number.
if Rand is NULL, then ASSERT().
@param[out] Rand Buffer pointer to store the 32-bit random value.
@retval TRUE Random number generated successfully.
@retval FALSE Failed to generate the random number.
**/
BOOLEAN
EFIAPI
GetRandomNumber32 (
OUT UINT32 *Rand
);
/**
Generates a 64-bit random number.
if Rand is NULL, then ASSERT().
@param[out] Rand Buffer pointer to store the 64-bit random value.
@retval TRUE Random number generated successfully.
@retval FALSE Failed to generate the random number.
**/
BOOLEAN
EFIAPI
GetRandomNumber64 (
OUT UINT64 *Rand
);
#endif // __RNG_LIB_H__