audk/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacMd5Null.c

/** @file
  HMAC-MD5 Wrapper Implementation which does not provide real capabilities.

Copyright (c) 2012 - 2017, 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-MD5 operations.
  (NOTE: This API is deprecated.
         Use HmacMd5New() / HmacMd5Free() for HMAC-MD5 Context operations.)

  Return zero to indicate this interface is not supported.

  @retval  0   This interface is not supported.

**/
UINTN
EFIAPI
HmacMd5GetContextSize (
  VOID
  )
{
  ASSERT (FALSE);
  return 0;
}

/**
  Allocates and initializes one HMAC_CTX context for subsequent HMAC-MD5 use.

  Return NULL to indicate this interface is not supported.

  @retval NULL  This interface is not supported.

**/
VOID *
EFIAPI
HmacMd5New (
  VOID
  )
{
  ASSERT (FALSE);
  return NULL;
}

/**
  Release the specified HMAC_CTX context.

  This function will do nothing.

  @param[in]  HmacMd5Ctx  Pointer to the HMAC_CTX context to be released.

**/
VOID
EFIAPI
HmacMd5Free (
  IN  VOID  *HmacMd5Ctx
  )
{
  ASSERT (FALSE);
  return;
}

/**
  Initializes user-supplied memory pointed by HmacMd5Context as HMAC-MD5 context for
  subsequent use. 

  Return FALSE to indicate this interface is not supported.  

  @param[out]  HmacMd5Context  Pointer to HMAC-MD5 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
HmacMd5Init (
  OUT  VOID         *HmacMd5Context,
  IN   CONST UINT8  *Key,
  IN   UINTN        KeySize
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Makes a copy of an existing HMAC-MD5 context.

  Return FALSE to indicate this interface is not supported.

  @param[in]  HmacMd5Context     Pointer to HMAC-MD5 context being copied.
  @param[out] NewHmacMd5Context  Pointer to new HMAC-MD5 context.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
HmacMd5Duplicate (
  IN   CONST VOID  *HmacMd5Context,
  OUT  VOID        *NewHmacMd5Context
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Digests the input data and updates HMAC-MD5 context.

  Return FALSE to indicate this interface is not supported.

  @param[in, out]  HmacMd5Context  Pointer to the HMAC-MD5 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
HmacMd5Update (
  IN OUT  VOID        *HmacMd5Context,
  IN      CONST VOID  *Data,
  IN      UINTN       DataSize
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Completes computation of the HMAC-MD5 digest value.

  Return FALSE to indicate this interface is not supported.

  @param[in, out]  HmacMd5Context  Pointer to the HMAC-MD5 context.
  @param[out]      HmacValue       Pointer to a buffer that receives the HMAC-MD5 digest
                                   value (16 bytes).

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
HmacMd5Final (
  IN OUT  VOID   *HmacMd5Context,
  OUT     UINT8  *HmacValue
  )
{
  ASSERT (FALSE);
  return FALSE;
}