CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha1Null.c

/** @file
  HMAC-SHA1 Wrapper Implementation which does not provide real capabilities.  

Copyright (c) 2012, 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.

**/

#include "InternalCryptLib.h"

/**
  Retrieves the size, in bytes, of the context buffer required for HMAC-SHA1 operations.

  Return zero to indicate this interface is not supported.

  @retval  0   This interface is not supported.

**/
UINTN
EFIAPI
HmacSha1GetContextSize (
  VOID
  )
{
  ASSERT (FALSE);
  return 0;
}

/**
  Initializes user-supplied memory pointed by HmacSha1Context as HMAC-SHA1 context for
  subsequent use.

  Return FALSE to indicate this interface is not supported.  

  @param[out]  HmacSha1Context  Pointer to HMAC-SHA1 context being initialized.
  @param[in]   Key              Pointer to the user-supplied key.
  @param[in]   KeySize          Key size in bytes.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
HmacSha1Init (
  OUT  VOID         *HmacSha1Context,
  IN   CONST UINT8  *Key,
  IN   UINTN        KeySize
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Makes a copy of an existing HMAC-SHA1 context.

  Return FALSE to indicate this interface is not supported.

  @param[in]  HmacSha1Context     Pointer to HMAC-SHA1 context being copied.
  @param[out] NewHmacSha1Context  Pointer to new HMAC-SHA1 context.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
HmacSha1Duplicate (
  IN   CONST VOID  *HmacSha1Context,
  OUT  VOID        *NewHmacSha1Context
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Digests the input data and updates HMAC-SHA1 context.

  Return FALSE to indicate this interface is not supported.  

  @param[in, out]  HmacSha1Context Pointer to the HMAC-SHA1 context.
  @param[in]       Data            Pointer to the buffer containing the data to be digested.
  @param[in]       DataSize        Size of Data buffer in bytes.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
HmacSha1Update (
  IN OUT  VOID        *HmacSha1Context,
  IN      CONST VOID  *Data,
  IN      UINTN       DataSize
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Completes computation of the HMAC-SHA1 digest value.

  Return FALSE to indicate this interface is not supported.  

  @param[in, out]  HmacSha1Context  Pointer to the HMAC-SHA1 context.
  @param[out]      HmacValue        Pointer to a buffer that receives the HMAC-SHA1 digest
                                    value (20 bytes).

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
HmacSha1Final (
  IN OUT  VOID   *HmacSha1Context,
  OUT     UINT8  *HmacValue
  )
{
  ASSERT (FALSE);
  return FALSE;
}