juce::BlowFish Class Reference

BlowFish encryption class. More...

#include <juce_BlowFish.h>

Collaboration diagram for juce::BlowFish:

Public Member Functions
	BlowFish (const BlowFish &)
	Creates a copy of another blowfish object. More...
	BlowFish (const void *keyData, int keyBytes)
	Creates an object that can encode/decode based on the specified key. More...
	~BlowFish () noexcept
	Destructor. More...
void	decrypt (MemoryBlock &data) const
	Decrypts a memory block. More...
void	decrypt (uint32 &data1, uint32 &data2) const noexcept
	Decrypts a pair of 32-bit integers. More...
int	decrypt (void *buffer, size_t bytes) const noexcept
	Decrypts data in-place. More...
void	encrypt (MemoryBlock &data) const
	Encrypts a memory block. More...
void	encrypt (uint32 &data1, uint32 &data2) const noexcept
	Encrypts a pair of 32-bit integers. More...
int	encrypt (void *buffer, size_t sizeOfMsg, size_t bufferSize) const noexcept
	Encrypts data in-place. More...
BlowFish &	operator= (const BlowFish &) noexcept
	Copies another blowfish object. More...

Private Member Functions
bool	apply (void *, size_t, void(BlowFish::*op)(uint32 &, uint32 &) const) const
uint32	F (uint32) const noexcept

Static Private Member Functions
static int	pad (void *, size_t, size_t) noexcept
static int	unpad (const void *, size_t) noexcept

Private Attributes
uint32	p [18]
HeapBlock< uint32 >	s [4]

Detailed Description

BlowFish encryption class.

@tags{Cryptography}

Constructor & Destructor Documentation

BlowFish() [1/2]

juce::BlowFish::BlowFish	(	const void *	keyData,
		int	keyBytes
	)

Creates an object that can encode/decode based on the specified key.

The key data can be up to 72 bytes long.

BlowFish() [2/2]

juce::BlowFish::BlowFish

(

const BlowFish &

)

Creates a copy of another blowfish object.

~BlowFish()

juce::BlowFish::~BlowFish ( )

noexcept

Destructor.

Member Function Documentation

apply()

bool juce::BlowFish::apply ( void *  , size_t  , void(BlowFish::*)(uint32 &, uint32 &) const  op  ) const

private

decrypt() [1/3]

void juce::BlowFish::decrypt

(

MemoryBlock &

data

)

const

Decrypts a memory block.

decrypt() [2/3]

void juce::BlowFish::decrypt ( uint32 &  data1, uint32 &  data2  ) const

noexcept

Decrypts a pair of 32-bit integers.

decrypt() [3/3]

int juce::BlowFish::decrypt ( void *  buffer, size_t  bytes  ) const

noexcept

Decrypts data in-place.

Parameters

buffer	The encrypted data that should be decrypted
bytes	The size of the encrypted data in bytes

Returns

The size of the decrypted data in bytes or -1 if the decryption failed.

encrypt() [1/3]

void juce::BlowFish::encrypt

(

MemoryBlock &

data

)

const

Encrypts a memory block.

encrypt() [2/3]

void juce::BlowFish::encrypt ( uint32 &  data1, uint32 &  data2  ) const

noexcept

Encrypts a pair of 32-bit integers.

encrypt() [3/3]

int juce::BlowFish::encrypt ( void *  buffer, size_t  sizeOfMsg, size_t  bufferSize  ) const

noexcept

Encrypts data in-place.

Parameters

buffer	The message that should be encrypted. See bufferSize on size requirements!
sizeOfMsg	The size of the message that should be encrypted in bytes
bufferSize	The size of the buffer in bytes. To accommodate the encrypted data, the buffer must be larger than the message: the size of the buffer needs to be equal or greater than the size of the message in bytes rounded to the next integer which is divisible by eight. If the message size in bytes is already divisible by eight then you need to add eight bytes to the buffer size. If in doubt simply use bufferSize = sizeOfMsg + 8.

Returns

The size of the decrypted data in bytes or -1 if the decryption failed.

F()

uint32 juce::BlowFish::F ( uint32  ) const

privatenoexcept

operator=()

BlowFish& juce::BlowFish::operator= ( const BlowFish &  )

noexcept

Copies another blowfish object.

pad()

static int juce::BlowFish::pad ( void *  , size_t  , size_t    )

staticprivatenoexcept

unpad()

static int juce::BlowFish::unpad ( const void *  , size_t    )

staticprivatenoexcept

Member Data Documentation

p

uint32 juce::BlowFish::p[18]

private

s

HeapBlock<uint32> juce::BlowFish::s[4]

private

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

• juce_BlowFish.h