GrayLib::cHashWrap Class Reference

#include <cHashWrap.h>

Public Member Functions
	cHashWrap () noexcept
	cHashWrap (const cHashTypeDef *pHashTypeDef)
	~cHashWrap ()
void	SetZeroHash ()
HRESULT	SetHashType (const cHashTypeDef *pHashTypeDef)
HRESULT	ResetHash ()
HRESULT	ProcessHashBuffer (const BYTE *pBuffer)
HRESULT	AddToHash (const BYTE *pInput, size_t nInputSize)
HRESULT	FinalizeHash (BYTE *pOutput)
HRESULT	InitHmac (const BYTE *pKey, size_t nKeySize)
	Generic HMAC. More...
HRESULT	FinalizeHmac (BYTE *pOutput)
HRESULT	ResetHmac ()
void	ApplyMask (BYTE *dst, size_t nSizeDst, BYTE *src, size_t nSizeSrc)

Public Attributes
const cHashTypeDef *	m_pHashTypeDef
	SSL_Hash_TYPE. More...
cNewPtr< cHashBase >	m_pHashBase
	Digest-specific info. More...

Static Public Attributes
static const size_t	k_HashSizeMax = 64
	max size bytes. More...

Detailed Description

Wrap functionality for any given SSL_Hash_TYPE via cHashBase

Constructor & Destructor Documentation

cHashWrap() [1/2]

GrayLib::cHashWrap::cHashWrap ( )

inlinenoexcept

cHashWrap() [2/2]

GrayLib::cHashWrap::cHashWrap ( const cHashTypeDef *  pHashTypeDef )

inline

~cHashWrap()

GrayLib::cHashWrap::~cHashWrap ( )

inline

Member Function Documentation

AddToHash()

HRESULT GrayLib::cHashWrap::AddToHash	(	const BYTE *	pInput,
		size_t	nInputSize
	)

Generic message digest process buffer

• pInput = buffer holding the data
• nInputSize = length of the input data

  Returns

  0 on success, E_POINTER if parameter verification fails.

ApplyMask()

void GrayLib::cHashWrap::ApplyMask	(	BYTE *	dst,
		size_t	nSizeDst,
		BYTE *	src,
		size_t	nSizeSrc
	)

Generate and apply the MGF1 operation (from PKCS#1 v2.1) to a buffer.

• dst = buffer to mask
• nSizeDst = length of destination buffer
• src = source of the mask generation
• nSizeSrc = length of the source buffer

FinalizeHash()

HRESULT GrayLib::cHashWrap::FinalizeHash

(

BYTE *

pOutput

)

Generic message digest final digest

• pOutput = Generic message digest checksum result ASSUME pOutput is big enough.

  Returns

  0 on success, E_POINTER if parameter verification fails.

FinalizeHmac()

HRESULT GrayLib::cHashWrap::FinalizeHmac

(

BYTE *

pOutput

)

InitHmac()

HRESULT GrayLib::cHashWrap::InitHmac	(	const BYTE *	pKey,
		size_t	nKeySize
	)

Generic HMAC.

ProcessHashBuffer()

HRESULT GrayLib::cHashWrap::ProcessHashBuffer

(

const BYTE *

pBuffer

)

Internal use for time wasting to avoid timing attacks. sizeof(this->m_buffer)

ResetHash()

HRESULT GrayLib::cHashWrap::ResetHash

(

)

Set-up the given context for a new message digest

Returns

0 on success, E_POINTER if parameter verification fails.

ResetHmac()

HRESULT GrayLib::cHashWrap::ResetHmac

(

)

SetHashType()

HRESULT GrayLib::cHashWrap::SetHashType

(

const cHashTypeDef *

pHashTypeDef

)

Initializes and fills the message digest context structure with the appropriate values.

• pHashType = message digest to use.

  Returns

  0 on success, E_POINTER on parameter failure, E_OUTOFMEMORY if allocation of the digest-specific context failed.

SetZeroHash()

void GrayLib::cHashWrap::SetZeroHash ( )

inline

Member Data Documentation

k_HashSizeMax

const size_t GrayLib::cHashWrap::k_HashSizeMax = 64

static

max size bytes.

m_pHashBase

cNewPtr<cHashBase> GrayLib::cHashWrap::m_pHashBase

Digest-specific info.

m_pHashTypeDef

const cHashTypeDef* GrayLib::cHashWrap::m_pHashTypeDef

SSL_Hash_TYPE.

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

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