zeus::TAbstractMDHash Class Reference

#include <AbstractMDHash.h>

Inheritance diagram for zeus::TAbstractMDHash:

List of all members.

Classes
struct	TypeMD_CTX
Public Member Functions
	TAbstractMDHash ()
virtual Retval	getHMAC (const IByteArray &rKey, const IByteArray &rInput, IByteArray &rOutput)
Protected Member Functions
void	finishCTX (TypeMD_CTX &rCtx, IByteArray &rOutput)
void	freeCTX (TypeMD_CTX &rCTX)
void	processBytes (TypeMD_CTX &rCtx, const IByteArray &rInput)
void	processBytes (TypeMD_CTX &rCtx, const Uint8 *pucBuffer, Int iSize)
virtual Int	getBlockSize () const =0
virtual void	initCTX (TypeMD_CTX &rCTX)=0
virtual void	processBlock (TypeMD_CTX &rCtx, const Uint8 *pucBuffer, Int iBlockNum)=0
virtual Retval	generate (const IByteArray &rInput, IByteArray &rOutput)
Static Protected Attributes
static const Uint8	m_ucFillBuffer [64]
	Fill buffer.

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Detailed Description

The abstract MDx hash implements the basic methods of the message digest hash algorithms

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Constructor & Destructor Documentation

TAbstractMDHash::TAbstractMDHash

(

)

Creates a Message Digest hash object

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Member Function Documentation

void TAbstractMDHash::finishCTX	(	TypeMD_CTX &	rCtx,
		IByteArray &	rOutput
	)		[protected]

Process the remaining bytes in the internal buffer and the usual prolog according to the standard and write the result to rOutput.

IMPORTANT: On some systems it is required that RESBUF is correctly aligned for a 32 bits value.

void TAbstractMDHash::freeCTX

(

TypeMD_CTX &

rCTX )

[protected]

Releases the allocated message digest buffer

Retval TAbstractMDHash::generate	(	const IByteArray &	rInput,
		IByteArray &	rOutput
	)		[protected, virtual]

See also:

TAbstractHash::generate

Implements zeus::TAbstractHash.

virtual Int zeus::TAbstractMDHash::getBlockSize

(

)

const [protected, pure virtual]

returns the size of blocks in bytes

Implemented in zeus::TMD4Hash, and zeus::TMD5Hash.

Retval TAbstractMDHash::getHMAC	(	const IByteArray &	rKey,
		const IByteArray &	rInput,
		IByteArray &	rOutput
	)		[virtual]

returns the hash-based Message authenication code for MD-based hash algorithms

Parameters:

rKey	: secret key
rInput	: message to hash
rOutput	: out put of the generated authenication code

Return values:

RET_NOERROR	: authenication code generated
RET_INTERNAL_ERROR	: internal error (block size unknown)

virtual void zeus::TAbstractMDHash::initCTX

(

TypeMD_CTX &

rCTX )

[protected, pure virtual]

initializes the hash generating

Implemented in zeus::TMD4Hash, and zeus::TMD5Hash.

virtual void zeus::TAbstractMDHash::processBlock	(	TypeMD_CTX &	rCtx,
		const Uint8 *	pucBuffer,
		Int	iBlockNum
	)		[protected, pure virtual]

Process LEN bytes of BUFFER, accumulating context into CTX. It is assumed that LEN % 64 == 0.

Implemented in zeus::TMD4Hash, and zeus::TMD5Hash.

void TAbstractMDHash::processBytes	(	TypeMD_CTX &	rCtx,
		const Uint8 *	pucBuffer,
		Int	iSize
	)		[protected]

Processes bytes and updates the hash

bSkip

void zeus::TAbstractMDHash::processBytes	(	TypeMD_CTX &	rCtx,
		const IByteArray &	rInput
	)		[inline, protected]

Processes bytes and updates the hash

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Member Data Documentation

const Uint8 TAbstractMDHash::m_ucFillBuffer [static, protected]

Initial value:

 { 0x80,
                                                               0 
                                                             }

Fill buffer.

This array contains the bytes used to pad the buffer to the next 64-byte boundary. (RFC 1320, 3.1: Step 1)

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

• AbstractMDHash.h
• AbstractMDHash.cpp