#include <cCipherBlowfish.h>

Inheritance diagram for GrayLib::cCipherBlowfish:

Public Member Functions
	cCipherBlowfish (bool bEncodeMode=true, const void *pKeyData=nullptr, size_t nKeySize=0)

virtual	~cCipherBlowfish ()

virtual size_t	get_BlockAlignSize () const override

virtual HRESULT	SetCipherKey (const void *pKeyData=nullptr, size_t nKeySize=0) override

virtual HRESULT	CipherModeECB (BYTE pOutput[k_BlockAlign], const BYTE pInput[k_BlockAlign]) override

virtual HRESULT	CipherModeCBC (BYTE pOutput, const BYTE pInput, size_t nSize, BYTE *pIV) override

virtual HRESULT	CipherModeCFB (BYTE pOutput, const BYTE pInput, size_t nSize, BYTE pIV[k_BlockAlign], size_t *pnIVOffset) override

virtual HRESULT	CipherModeCTR (BYTE pOutput, const BYTE pInput, size_t nSize, BYTE pNonceCounter[k_BlockAlign], size_t *pNCOffset, BYTE pStreamBlock[k_BlockAlign]) override

virtual HRESULT	Cipher (BYTE pOutput, const BYTE pInput, size_t nSizeBytes) override

	UNITTEST_FRIEND (cCipherBlowfish)

Public Member Functions inherited from GrayLib::cCipherBase
	cCipherBase (bool bEncodeMode=true, CIPHER_BLOCK_TYPE eBlockMode=CIPHER_BLOCK_UNK) noexcept

virtual	~cCipherBase ()

void	put_EncodeMode (bool bEncodeMode) noexcept

bool	get_EncodeMode () const noexcept

void	put_BlockMode (CIPHER_BLOCK_TYPE eBlockMode) noexcept

virtual HRESULT	CipherModeECB (BYTE pOutput, const BYTE pInput)

virtual HRESULT	CipherModeCFB (BYTE pOutput, const BYTE pInput, size_t nSize, BYTE pIV, size_t pIVOffset)

virtual HRESULT	CipherModeCTR (BYTE pOutput, const BYTE pInput, size_t nSize, BYTE pNonceCounter, size_t pNCOffset, BYTE *pStreamBlock)

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 size_t	k_BlockAlign = 8
	Blowfish uses 64 bit blocks = 8 bytes = sizeof(cCipherBlowfishBlock) More...

static const size_t	k_KeySizeMax = 56
	56 bytes = 448 bits. More...

Additional Inherited Members
Static Public Member Functions inherited from GrayLib::cCipherBase
static size_t GRAYCALL	CopyFillX (void pOutput, size_t nOutSize, const void pInput, size_t nInputSize)

Protected Attributes inherited from GrayLib::cCipherBase
bool	m_bEncodeMode
	We are in encode/encrypt mode vs decode/decrypt mode. More...

CIPHER_BLOCK_TYPE	m_eBlockMode
	Cipher block mode. How are sequences of blocks treated? More...

Detailed Description

CipherAlgorithm_Blowfish crypt and decrypt using Blowfish http://en.wikipedia.org/wiki/Blowfish_%28cipher%29

Note: Can be used by .CAB files in _WIN32; watch out for get_BlockAlignSize()

Constructor & Destructor Documentation

◆ cCipherBlowfish()

GrayLib::cCipherBlowfish::cCipherBlowfish	(	bool	bEncodeMode = `true`,
		const void *	pKeyData = `nullptr`,
		size_t	nKeySize = `0`
	)

◆ ~cCipherBlowfish()

GrayLib::cCipherBlowfish::~cCipherBlowfish ( )

virtual

Member Function Documentation

◆ Cipher()

HRESULT GrayLib::cCipherBlowfish::Cipher	(	BYTE *	pOutput,
		const BYTE *	pInput,
		size_t	nSizeBytes
	)

overridevirtual

Encrypt from Input Buffer to Output Buffer Check the buffer's length - should be > 0 and multiple of 8

Returns: <0 = error. Amount of data i could actually process (some may be dropped for alignment)

Reimplemented from GrayLib::cCipherBase.

◆ CipherModeCBC()

HRESULT GrayLib::cCipherBlowfish::CipherModeCBC	(	BYTE *	pOutput,
		const BYTE *	pInput,
		size_t	nSize,
		BYTE *	pIV
	)

overridevirtual

Blowfish-CBC buffer encryption/decryption Length should be a multiple of the block size (8 bytes) [k_BlockAlign]

Note: Upon exit, the content of the IV is updated so that you can call the function same function again on the following block(s) of data and get the same result as if it was encrypted in one call. This allows a "streaming" usage. If on the other hand you need to retain the contents of the IV, you should either save it manually or use the cipher module instead.

pOutput = buffer holding the output data
pInput = buffer holding the input data
nSize = length of the input data
pIV = initialization vector (updated after use)
Returns
0 if successful, or NTE_BAD_LEN

Reimplemented from GrayLib::cCipherBase.

◆ CipherModeCFB()

HRESULT GrayLib::cCipherBlowfish::CipherModeCFB	(	BYTE *	pOutput,
		const BYTE *	pInput,
		size_t	nSize,
		BYTE	pIV[k_BlockAlign],
		size_t *	pnIVOffset
	)

overridevirtual

Blowfish CFB buffer encryption/decryption. CIPHER_BLOCK_CFB

Note: Upon exit, the content of the IV is updated so that you can call the function same function again on the following block(s) of data and get the same result as if it was encrypted in one call. This allows a "streaming" usage. If on the other hand you need to retain the contents of the IV, you should either save it manually or use the cipher module instead.

pOutput = buffer holding the output data
pInput = buffer holding the input data
nSize = length of the input data
pIV = initialization vector (updated after use)
pnIVOffset = offset in IV (updated after use)
Returns
0 if successful

◆ CipherModeCTR()

HRESULT GrayLib::cCipherBlowfish::CipherModeCTR	(	BYTE *	pOutput,
		const BYTE *	pInput,
		size_t	nSize,
		BYTE	pNonceCounter[k_BlockAlign],
		size_t *	pNCOffset,
		BYTE	pStreamBlock[k_BlockAlign]
	)

overridevirtual

Blowfish-CTR buffer encryption/decryption Warning: You have to keep the maximum use of your counter in mind!

pOutput = buffer holding the output data
pInput = buffer holding the input data
nSize = length of the input data
pNonceCounter = The 64-bit nonce and counter.
pNCOffset = The offset in the current stream_block (for resuming within current cipher stream). The offset pointer to should be 0 at the start of a stream.
pStreamBlock = The saved stream-block for resuming. Is overwritten by the function.

Returns: 0 if successful

◆ CipherModeECB()

HRESULT GrayLib::cCipherBlowfish::CipherModeECB	(	BYTE	pOutput[k_BlockAlign],
		const BYTE	pInput[k_BlockAlign]
	)

overridevirtual

Blowfish-ECB CIPHER_BLOCK_ECB block encryption/decryption [k_BlockAlign]

pInput = 8-byte input block
pOutput = 8-byte output block
Returns
0 if successful

◆ get_BlockAlignSize()

virtual size_t GrayLib::cCipherBlowfish::get_BlockAlignSize ( ) const

inlineoverridevirtual

Reimplemented from GrayLib::cCipherBase.

◆ SetCipherKey()

HRESULT GrayLib::cCipherBlowfish::SetCipherKey	(	const void *	pKeyData = `nullptr`,
		size_t	nKeySize = `0`
	)

overridevirtual

Constructor - Initialize the P and S boxes for a given Key

pKeyData = set cipher key. Fix it if unaligned.
nKeySize = must be between 32 and 448 bits

Reimplemented from GrayLib::cCipherBase.

◆ UNITTEST_FRIEND()

GrayLib::cCipherBlowfish::UNITTEST_FRIEND ( cCipherBlowfish )

Member Data Documentation

◆ k_BlockAlign

const size_t GrayLib::cCipherBlowfish::k_BlockAlign = 8

static

Blowfish uses 64 bit blocks = 8 bytes = sizeof(cCipherBlowfishBlock)

◆ k_KeySizeMax

const size_t GrayLib::cCipherBlowfish::k_KeySizeMax = 56

static

56 bytes = 448 bits.

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

c:/Dennis/Source/Gray/GrayLib/include/Cipher/cCipherBlowfish.h
c:/Dennis/Source/Gray/GrayLib/src/Cipher/cCipherBlowfish.cpp

Public Member Functions

Static Public Attributes

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ cCipherBlowfish()

◆ ~cCipherBlowfish()

Member Function Documentation

◆ Cipher()

◆ CipherModeCBC()

◆ CipherModeCFB()

◆ CipherModeCTR()

◆ CipherModeECB()

◆ get_BlockAlignSize()

◆ SetCipherKey()

◆ UNITTEST_FRIEND()

Member Data Documentation

◆ k_BlockAlign

◆ k_KeySizeMax