CryptoPkg/Library/BaseCryptLibNull/Rand/CryptRandNull.c

   1 /** @file
   2   Pseudorandom Number Generator Wrapper Implementation which does not provide
   3   real capabilities.
   4
   5 Copyright (c) 2012, Intel Corporation. All rights reserved.<BR>
   6 SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include "InternalCryptLib.h"
  11
  12 /**
  13   Sets up the seed value for the pseudorandom number generator.
  14
  15   Return FALSE to indicate this interface is not supported.
  16
  17   @param[in]  Seed      Pointer to seed value.
  18                         If NULL, default seed is used.
  19   @param[in]  SeedSize  Size of seed value.
  20                         If Seed is NULL, this parameter is ignored.
  21
  22   @retval FALSE  This interface is not supported.
  23
  24 **/
  25 BOOLEAN
  26 EFIAPI
  27 RandomSeed (
  28   IN  CONST  UINT8  *Seed  OPTIONAL,
  29   IN  UINTN         SeedSize
  30   )
  31 {
  32   ASSERT (FALSE);
  33   return FALSE;
  34 }
  35
  36 /**
  37   Generates a pseudorandom byte stream of the specified size.
  38
  39   Return FALSE to indicate this interface is not supported.
  40
  41   @param[out]  Output  Pointer to buffer to receive random value.
  42   @param[in]   Size    Size of random bytes to generate.
  43
  44   @retval FALSE  This interface is not supported.
  45
  46 **/
  47 BOOLEAN
  48 EFIAPI
  49 RandomBytes (
  50   OUT  UINT8  *Output,
  51   IN   UINTN  Size
  52   )
  53 {
  54   ASSERT (FALSE);
  55   return FALSE;
  56 }