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 /**
  14   Sets up the seed value for the pseudorandom number generator.
  15
  16   Return FALSE to indicate this interface is not supported.
  17
  18   @param[in]  Seed      Pointer to seed value.
  19                         If NULL, default seed is used.
  20   @param[in]  SeedSize  Size of seed value.
  21                         If Seed is NULL, this parameter is ignored.
  22
  23   @retval FALSE  This interface is not supported.
  24
  25 **/
  26 BOOLEAN
  27 EFIAPI
  28 RandomSeed (
  29   IN  CONST  UINT8  *Seed  OPTIONAL,
  30   IN  UINTN         SeedSize
  31   )
  32 {
  33   ASSERT (FALSE);
  34   return FALSE;
  35 }
  36
  37 /**
  38   Generates a pseudorandom byte stream of the specified size.
  39
  40   Return FALSE to indicate this interface is not supported.
  41
  42   @param[out]  Output  Pointer to buffer to receive random value.
  43   @param[in]   Size    Size of random bytes to generate.
  44
  45   @retval FALSE  This interface is not supported.
  46
  47 **/
  48 BOOLEAN
  49 EFIAPI
  50 RandomBytes (
  51   OUT  UINT8  *Output,
  52   IN   UINTN  Size
  53   )
  54 {
  55   ASSERT (FALSE);
  56   return FALSE;
  57 }