CryptoPkg/Library/BaseCryptLib/Kdf/CryptHkdfNull.c

   1 /** @file
   2   HMAC-SHA256 KDF Wrapper Implementation which does not provide real capabilities.
   3
   4 Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
   5 SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #include <Library/BaseCryptLib.h>
  10 #include <Library/DebugLib.h>
  11
  12 /**
  13   Derive key data using HMAC-SHA256 based KDF.
  14
  15   @param[in]   Key              Pointer to the user-supplied key.
  16   @param[in]   KeySize          Key size in bytes.
  17   @param[in]   Salt             Pointer to the salt(non-secret) value.
  18   @param[in]   SaltSize         Salt size in bytes.
  19   @param[in]   Info             Pointer to the application specific info.
  20   @param[in]   InfoSize         Info size in bytes.
  21   @param[Out]  Out              Pointer to buffer to receive hkdf value.
  22   @param[in]   OutSize          Size of hkdf bytes to generate.
  23
  24   @retval TRUE   Hkdf generated successfully.
  25   @retval FALSE  Hkdf generation failed.
  26
  27 **/
  28 BOOLEAN
  29 EFIAPI
  30 HkdfSha256ExtractAndExpand (
  31   IN   CONST UINT8  *Key,
  32   IN   UINTN        KeySize,
  33   IN   CONST UINT8  *Salt,
  34   IN   UINTN        SaltSize,
  35   IN   CONST UINT8  *Info,
  36   IN   UINTN        InfoSize,
  37   OUT  UINT8        *Out,
  38   IN   UINTN        OutSize
  39   )
  40 {
  41   ASSERT (FALSE);
  42   return FALSE;
  43 }