BlowFish Class Reference
juce_cryptography » encryption

BlowFish encryption class. More...

## Public Member Functions

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

## Detailed Description

BlowFish encryption class.

## Constructor & Destructor Documentation

## BlowFish() [1/2]

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]

BlowFish::BlowFish | ( | const BlowFish & |  | ) |

Creates a copy of another blowfish object.

## ~BlowFish()

BlowFish::~BlowFish | ( |  | ) |

noexcept

Destructor.

## Member Function Documentation

## operator=()

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

noexcept

Copies another blowfish object.

## encrypt() [1/3]

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

noexcept

Encrypts a pair of 32-bit integers.

## decrypt() [1/3]

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

noexcept

Decrypts a pair of 32-bit integers.

## encrypt() [2/3]

void BlowFish::encrypt | ( | MemoryBlock & | data | ) | const

Encrypts a memory block.

## decrypt() [2/3]

void BlowFish::decrypt | ( | MemoryBlock & | data | ) | const

Decrypts a memory block.

## encrypt() [3/3]

int 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.

## decrypt() [3/3]

int 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.

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

- juce_BlowFish.h