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CryptoPkg/BaseCryptLibNull: Add missing HkdfSha256ExtractAndExpand() 

https://bugzilla.tianocore.org/show_bug.cgi?id=2493

The BaseCryptLib was expanded to add the HkdfSha256ExtractAndExpand()
service in the following commit:

4b1b7c1913

When BaseCryptLibNull was added in the commit below, this new
service was not included.

d95de082da

Cc: Jian J Wang <jian.j.wang@intel.com>
Cc: Xiaoyu Lu <xiaoyux.lu@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
Reviewed-by: Jian J Wang <jian.j.wang@intel.com>
This commit is contained in:
Michael D Kinney 2020-01-24 16:11:54 -08:00 committed by mergify[bot]
parent b47fe2655d
commit 422da35375
2 changed files with 45 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
CryptoPkg/Library/BaseCryptLibNull/BaseCryptLibNull.inf
View File

@ -6,7 +6,7 @@
# This external input must be validated carefully to avoid security issues such as
# buffer overflow or integer overflow.
#
# Copyright (c) 2009 - 2019, Intel Corporation. All rights reserved.<BR>
# Copyright (c) 2009 - 2020, Intel Corporation. All rights reserved.<BR>
# SPDX-License-Identifier: BSD-2-Clause-Patent
#
##
@ -37,6 +37,7 @@
Hmac/CryptHmacMd5Null.c
Hmac/CryptHmacSha1Null.c
Hmac/CryptHmacSha256Null.c
Kdf/CryptHkdfNull.c
Cipher/CryptAesNull.c
Cipher/CryptTdesNull.c
Cipher/CryptArc4Null.c

43
CryptoPkg/Library/BaseCryptLibNull/Kdf/CryptHkdfNull.c Normal file
View File

@ -0,0 +1,43 @@
/** @file
HMAC-SHA256 KDF Wrapper Implementation which does not provide real capabilities.
Copyright (c) 2018 - 2019, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent
**/
#include <Library/BaseCryptLib.h>
#include <Library/DebugLib.h>
/**
Derive key data using HMAC-SHA256 based KDF.
@param[in] Key Pointer to the user-supplied key.
@param[in] KeySize Key size in bytes.
@param[in] Salt Pointer to the salt(non-secret) value.
@param[in] SaltSize Salt size in bytes.
@param[in] Info Pointer to the application specific info.
@param[in] InfoSize Info size in bytes.
@param[out] Out Pointer to buffer to receive hkdf value.
@param[in] OutSize Size of hkdf bytes to generate.
@retval TRUE Hkdf generated successfully.
@retval FALSE Hkdf generation failed.
**/
BOOLEAN
EFIAPI
HkdfSha256ExtractAndExpand (
IN CONST UINT8 *Key,
IN UINTN KeySize,
IN CONST UINT8 *Salt,
IN UINTN SaltSize,
IN CONST UINT8 *Info,
IN UINTN InfoSize,
OUT UINT8 *Out,
IN UINTN OutSize
)
{
ASSERT (FALSE);
return FALSE;
}