GrayLib::cHashBase Class Reference

#include <cHashBase.h>

Inheritance diagram for GrayLib::cHashBase:

Public Member Functions
virtual	~cHashBase ()
virtual void	ResetHash ()=0
virtual void	ProcessHashBuffer (const BYTE *pBuffer)
virtual void	AddToHash (const void *pInput, size_t nInputSize)=0
	Digest update function. More...
virtual size_t	FinalizeHash (OUT BYTE *pOutput)=0
	Digest finalization function. More...
size_t	ComputeHash (BYTE *pOutput, const void *pInput, size_t nInputSize)
virtual void	InitHmac (const BYTE *pKey, size_t nKeySize)
virtual size_t	FinalizeHmac (OUT BYTE *pOutput)
	HMAC finalization function. More...
virtual void	ResetHmac ()
size_t	ComputeHmac (BYTE *pOutput, const BYTE *pKey, size_t nKeySize, const void *pInput, size_t nInputSize)
void	AddToHashFromBlock (const cHeapBlock &m)
	Helpers. More...
StrLen_t	AddToHashFromStr (const char *pszStr)
HRESULT	AddToHashFromStream (cStreamInput &file, IStreamProgressCallback *pProgress=nullptr)
HRESULT	AddToHashFromFile (const FILECHAR_t *pszFileName, IStreamProgressCallback *pProgress=nullptr)
HRESULT	ComputeHashFromStream (OUT BYTE *pOutput, cStreamInput &fin, IStreamProgressCallback *pProgress=nullptr)
HRESULT	ComputeHashFromFile (OUT BYTE *pOutput, const FILECHAR_t *pszFileName, IStreamProgressCallback *pProgress=nullptr)
Public Member Functions inherited from Gray::CObject
virtual	~CObject ()
virtual bool	isValidCheck () const noexcept
	< memory allocation and structure definitions are valid. More...
virtual void	AssertValid () const
	< memory allocation and structure definitions are valid. More...
virtual void	Serialize (cArchive &a)

Static Public Attributes
static const BYTE	k_Padding [128]
	0x80 followed by zeros. More...
static const size_t	k_HashSizeMax = 64
	Largest hash k_HashSize that we support. in bytes. More...

Detailed Description

Base hash builder class for: MD5,SHA1,SHA256,SHA512 Defined by cHashTypeDef

Constructor & Destructor Documentation

~cHashBase()

virtual GrayLib::cHashBase::~cHashBase ( )

inlinevirtual

allow delete base to work.

Member Function Documentation

AddToHash()

virtual void GrayLib::cHashBase::AddToHash ( const void *  pInput, size_t  nInputSize  )

pure virtual

Digest update function.

Implemented in GrayLib::cHashSHA512Builder, GrayLib::cHashMD5Builder, GrayLib::cHashSHA1Builder, and GrayLib::cCRC32Builder.

AddToHashFromBlock()

void GrayLib::cHashBase::AddToHashFromBlock ( const cHeapBlock &  m )

inline

Helpers.

AddToHashFromFile()

HRESULT GrayLib::cHashBase::AddToHashFromFile	(	const FILECHAR_t *	pszFileName,
		IStreamProgressCallback *	pProgress = nullptr
	)

AddToHashFromStr()

StrLen_t GrayLib::cHashBase::AddToHashFromStr

(

const char *

pszStr

)

• pszStr = nullptr should be OK.

AddToHashFromStream()

HRESULT GrayLib::cHashBase::AddToHashFromStream	(	cStreamInput &	file,
		IStreamProgressCallback *	pProgress = nullptr
	)

ComputeHash()

size_t GrayLib::cHashBase::ComputeHash ( BYTE *  pOutput, const void *  pInput, size_t  nInputSize  )

inline

Calculate and Finalize in a single step.

ComputeHashFromFile()

HRESULT GrayLib::cHashBase::ComputeHashFromFile	(	OUT BYTE *	pOutput,
		const FILECHAR_t *	pszFileName,
		IStreamProgressCallback *	pProgress = nullptr
	)

ComputeHashFromStream()

HRESULT GrayLib::cHashBase::ComputeHashFromStream	(	OUT BYTE *	pOutput,
		cStreamInput &	fin,
		IStreamProgressCallback *	pProgress = nullptr
	)

compute a Hash for file contents

ComputeHmac()

size_t GrayLib::cHashBase::ComputeHmac ( BYTE *  pOutput, const BYTE *  pKey, size_t  nKeySize, const void *  pInput, size_t  nInputSize  )

inline

computer HMAC as a single action.

FinalizeHash()

virtual size_t GrayLib::cHashBase::FinalizeHash ( OUT BYTE *  pOutput )

pure virtual

Digest finalization function.

Implemented in GrayLib::cCRC32Builder.

FinalizeHmac()

virtual size_t GrayLib::cHashBase::FinalizeHmac ( OUT BYTE *  pOutput )

inlinevirtual

HMAC finalization function.

InitHmac()

virtual void GrayLib::cHashBase::InitHmac ( const BYTE *  pKey, size_t  nKeySize  )

inlinevirtual

HMAC Initialization function

Reimplemented in GrayLib::cHashSHA512Builder, GrayLib::cHashSHA1Builder, and GrayLib::cHashMD5Builder.

ProcessHashBuffer()

virtual void GrayLib::cHashBase::ProcessHashBuffer ( const BYTE *  pBuffer )

inlinevirtual

Internal buffer process. TODO GET RID OF THIS ???

ResetHash()

virtual void GrayLib::cHashBase::ResetHash ( )

pure virtual

Implemented in GrayLib::cHashSHA512Builder, GrayLib::cHashSHA1Builder, GrayLib::cHashMD5Builder, and GrayLib::cCRC32Builder.

ResetHmac()

virtual void GrayLib::cHashBase::ResetHmac ( )

inlinevirtual

HMAC context reset function. Will call ResetHash().

Reimplemented in GrayLib::cHashSHA512Builder, GrayLib::cHashSHA1Builder, and GrayLib::cHashMD5Builder.

Member Data Documentation

k_HashSizeMax

const size_t GrayLib::cHashBase::k_HashSizeMax = 64

static

Largest hash k_HashSize that we support. in bytes.

k_Padding

const BYTE GrayLib::cHashBase::k_Padding

static

Initial value:

=
        {
                0x80, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
                0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
        }

0x80 followed by zeros.

---

The documentation for this class was generated from the following files:

• c:/Dennis/Source/Gray/GrayLib/include/Hash/cHashBase.h
• c:/Dennis/Source/Gray/GrayLib/src/Hash/cHashBase.cpp
• c:/Dennis/Source/Gray/GrayLib/src/Hash/cHashSHA512.cpp