CryptoPkg/Library/BaseCryptLibNull/Cipher/CryptAesNull.c

/** @file
  AES Wrapper Implementation which does not provide real capabilities.

Copyright (c) 2012 - 2018, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#include "InternalCryptLib.h"

/**
  Retrieves the size, in bytes, of the context buffer required for AES operations.

  Return zero to indicate this interface is not supported.

  @retval  0   This interface is not supported.

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

/**
  Initializes user-supplied memory as AES context for subsequent use.

  Return FALSE to indicate this interface is not supported.

  @param[out]  AesContext  Pointer to AES context being initialized.
  @param[in]   Key         Pointer to the user-supplied AES key.
  @param[in]   KeyLength   Length of AES key in bits.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
AesInit (
  OUT  VOID         *AesContext,
  IN   CONST UINT8  *Key,
  IN   UINTN        KeyLength
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Performs AES encryption on a data buffer of the specified size in CBC mode.

  Return FALSE to indicate this interface is not supported.

  @param[in]   AesContext  Pointer to the AES context.
  @param[in]   Input       Pointer to the buffer containing the data to be encrypted.
  @param[in]   InputSize   Size of the Input buffer in bytes.
  @param[in]   Ivec        Pointer to initialization vector.
  @param[out]  Output      Pointer to a buffer that receives the AES encryption output.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
AesCbcEncrypt (
  IN   VOID         *AesContext,
  IN   CONST UINT8  *Input,
  IN   UINTN        InputSize,
  IN   CONST UINT8  *Ivec,
  OUT  UINT8        *Output
  )
{
  ASSERT (FALSE);
  return FALSE;
}

/**
  Performs AES decryption on a data buffer of the specified size in CBC mode.

  Return FALSE to indicate this interface is not supported.

  @param[in]   AesContext  Pointer to the AES context.
  @param[in]   Input       Pointer to the buffer containing the data to be encrypted.
  @param[in]   InputSize   Size of the Input buffer in bytes.
  @param[in]   Ivec        Pointer to initialization vector.
  @param[out]  Output      Pointer to a buffer that receives the AES encryption output.

  @retval FALSE  This interface is not supported.

**/
BOOLEAN
EFIAPI
AesCbcDecrypt (
  IN   VOID         *AesContext,
  IN   CONST UINT8  *Input,
  IN   UINTN        InputSize,
  IN   CONST UINT8  *Ivec,
  OUT  UINT8        *Output
  )
{
  ASSERT (FALSE);
  return FALSE;
}