HashInstanceLibSha256.c File Reference

#include <PiPei.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/Tpm2CommandLib.h>
#include <Library/DebugLib.h>
#include <Library/BaseCryptLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/HashLib.h>

Go to the source code of this file.

Functions
VOID	Tpm2SetSha256ToDigestList (IN TPML_DIGEST_VALUES *DigestList, IN UINT8 *Sha256Digest)
EFI_STATUS EFIAPI	Sha256HashInit (OUT HASH_HANDLE *HashHandle)
EFI_STATUS EFIAPI	Sha256HashUpdate (IN HASH_HANDLE HashHandle, IN VOID *DataToHash, IN UINTN DataToHashLen)
EFI_STATUS EFIAPI	Sha256HashFinal (IN HASH_HANDLE HashHandle, OUT TPML_DIGEST_VALUES *DigestList)
EFI_STATUS EFIAPI	HashInstanceLibSha256Constructor (VOID)

Variables
HASH_INTERFACE	mSha256InternalHashInstance

Detailed Description

This library is BaseCrypto SHA256 hash instance. It can be registered to BaseCrypto router, to serve as hash engine.

Copyright (c) 2013 - 2018, Intel Corporation. All rights reserved.
SPDX-License-Identifier: BSD-2-Clause-Patent

Definition in file HashInstanceLibSha256.c.

Function Documentation

HashInstanceLibSha256Constructor()

EFI_STATUS EFIAPI HashInstanceLibSha256Constructor

(

VOID

)

The function register SHA256 instance.

Return values

EFI_SUCCESS

SHA256 instance is registered, or system does not support register SHA256 instance

Definition at line 135 of file HashInstanceLibSha256.c.

Sha256HashFinal()

EFI_STATUS EFIAPI Sha256HashFinal	(	IN HASH_HANDLE	HashHandle,
		OUT TPML_DIGEST_VALUES *	DigestList
	)

Complete hash sequence complete.

Parameters

HashHandle	Hash handle.
DigestList	Digest list.

Return values

EFI_SUCCESS

Hash sequence complete and DigestList is returned.

Definition at line 103 of file HashInstanceLibSha256.c.

Sha256HashInit()

EFI_STATUS EFIAPI Sha256HashInit

(

OUT HASH_HANDLE *

HashHandle

)

Start hash sequence.

Parameters

HashHandle

Hash handle.

Return values

EFI_SUCCESS	Hash sequence start and HandleHandle returned.
EFI_OUT_OF_RESOURCES	No enough resource to start hash.

Definition at line 50 of file HashInstanceLibSha256.c.

Sha256HashUpdate()

EFI_STATUS EFIAPI Sha256HashUpdate	(	IN HASH_HANDLE	HashHandle,
		IN VOID *	DataToHash,
		IN UINTN	DataToHashLen
	)

Update hash sequence data.

Parameters

HashHandle	Hash handle.
DataToHash	Data to be hashed.
DataToHashLen	Data size.

Return values

EFI_SUCCESS

Hash sequence updated.

Definition at line 79 of file HashInstanceLibSha256.c.

Tpm2SetSha256ToDigestList()

VOID Tpm2SetSha256ToDigestList	(	IN TPML_DIGEST_VALUES *	DigestList,
		IN UINT8 *	Sha256Digest
	)

The function set SHA256 to digest list.

Parameters

DigestList	digest list
Sha256Digest	SHA256 digest

Definition at line 26 of file HashInstanceLibSha256.c.

Variable Documentation

mSha256InternalHashInstance

HASH_INTERFACE mSha256InternalHashInstance

Initial value:

= {
  HASH_ALGORITHM_SHA256_GUID,
  Sha256HashInit,
  Sha256HashUpdate,
  Sha256HashFinal,
}

Definition at line 121 of file HashInstanceLibSha256.c.