audk/CryptoPkg/Library/BaseCryptLib/Hmac/CryptHmacSha256Null.c

166 lines
3.9 KiB
C

/** @file
HMAC-SHA256 Wrapper Implementation which does not provide real capabilities.
Copyright (c) 2016 - 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-SHA256 operations.
(NOTE: This API is deprecated.
Use HmacSha256New() / HmacSha256Free() for HMAC-SHA256 Context operations.)
Return zero to indicate this interface is not supported.
@retval 0 This interface is not supported.
**/
UINTN
EFIAPI
HmacSha256GetContextSize (
VOID
)
{
ASSERT (FALSE);
return 0;
}
/**
Allocates and initializes one HMAC_CTX context for subsequent HMAC-SHA256 use.
Return NULL to indicate this interface is not supported.
@return NULL This interface is not supported..
**/
VOID *
EFIAPI
HmacSha256New (
VOID
)
{
ASSERT (FALSE);
return NULL;
}
/**
Release the specified HMAC_CTX context.
This function will do nothing.
@param[in] HmacSha256Ctx Pointer to the HMAC_CTX context to be released.
**/
VOID
EFIAPI
HmacSha256Free (
IN VOID *HmacSha256Ctx
)
{
ASSERT (FALSE);
return;
}
/**
Initializes user-supplied memory pointed by HmacSha256Context as HMAC-SHA256 context for
subsequent use.
Return FALSE to indicate this interface is not supported.
@param[out] HmacSha256Context Pointer to HMAC-SHA256 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
HmacSha256Init (
OUT VOID *HmacSha256Context,
IN CONST UINT8 *Key,
IN UINTN KeySize
)
{
ASSERT (FALSE);
return FALSE;
}
/**
Makes a copy of an existing HMAC-SHA256 context.
Return FALSE to indicate this interface is not supported.
@param[in] HmacSha256Context Pointer to HMAC-SHA256 context being copied.
@param[out] NewHmacSha256Context Pointer to new HMAC-SHA256 context.
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
HmacSha256Duplicate (
IN CONST VOID *HmacSha256Context,
OUT VOID *NewHmacSha256Context
)
{
ASSERT (FALSE);
return FALSE;
}
/**
Digests the input data and updates HMAC-SHA256 context.
Return FALSE to indicate this interface is not supported.
@param[in, out] HmacSha256Context Pointer to the HMAC-SHA256 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
HmacSha256Update (
IN OUT VOID *HmacSha256Context,
IN CONST VOID *Data,
IN UINTN DataSize
)
{
ASSERT (FALSE);
return FALSE;
}
/**
Completes computation of the HMAC-SHA256 digest value.
Return FALSE to indicate this interface is not supported.
@param[in, out] HmacSha256Context Pointer to the HMAC-SHA256 context.
@param[out] HmacValue Pointer to a buffer that receives the HMAC-SHA256 digest
value (32 bytes).
@retval FALSE This interface is not supported.
**/
BOOLEAN
EFIAPI
HmacSha256Final (
IN OUT VOID *HmacSha256Context,
OUT UINT8 *HmacValue
)
{
ASSERT (FALSE);
return FALSE;
}