BlockCipher Class Reference

Cryptographic block cipher. More...

#include <cc/BlockCipher>

Inheritance diagram for BlockCipher:

Classes
struct	State
	Internal state. More...

Public Member Functions
	BlockCipher ()=default
	Create a null block cipher.
int	blockSize () const
	Block size in bytes (required for encode() and decode()).
void	encode (const Bytes &p, Out< Bytes > c)
	Encipher plaintext block p into ciphertext block c.
void	decode (const Bytes &c, Out< Bytes > p)
	Decipher ciphertext block c into plaintext block p.
Public Member Functions inherited from Object
	Object ()=default
	Create a null object.
	operator bool () const
	Check if this is a non-null object.
bool	isNull () const
	Check if this is a null object.
int	useCount () const
	Reference count.
template<class T>
bool	is () const
	Check if this object is of type T.
template<class T>
T	as () const
	Cast this object to type T.
bool	isWeak () const
	Check if the underlying object reference is weak.
bool	operator== (const Object &other) const
	Equality operator.
std::strong_ordering	operator<=> (const Object &other) const
	Ordering operator.

Protected Member Functions
	BlockCipher (State *newState)
	Initialize with newState.
State &	me ()
const State &	me () const
Protected Member Functions inherited from Object
template<class T>
T	weak () const
template<class T>
void	initOnce ()
	Create the object state when called the first time.
template<class T>
void	initOncePerThread ()
	Create a distinct object state for each thread when called the first time in that thread.
	Object (State *newState)
	Initialize object with newState.
	Object (State *state, Alias)
	Object (State *state, Weak)
Object &	operator= (std::nullptr_t)

Additional Inherited Members
Public Types inherited from Object
using	NullAccess = cc::NullAccess
	Error thrown when trying to access a null object.
using	VirginityTestFailed = cc::VirginityTestFailed
	Error thrown when trying to initialize an object with a non-virgin state.
Static Protected Member Functions inherited from Object
template<class T>
static T	alias (const State *state)
	Create an alias object for the given state.
template<class T>
static T	weak (const State *state)
Protected Attributes inherited from Object
Handle< State >	me
	Internal object state

Detailed Description

Cryptographic block cipher.

Todo

Change encode(), decode() interfaces to allow passing the current block, because block selection with Bytes::select() is to expensive.

Constructor & Destructor Documentation

BlockCipher() [1/2]

BlockCipher ( )

default

Create a null block cipher.

BlockCipher() [2/2]

BlockCipher ( State * newState )

explicitprotected

Initialize with newState.

Member Function Documentation

blockSize()

int blockSize

(

)

const

Block size in bytes (required for encode() and decode()).

encode()

void encode	(	const Bytes &	p,
		Out< Bytes >	c )

Encipher plaintext block p into ciphertext block c.

Note

Both the plaintext block and the ciphertext block must have the proper block size.

decode()

void decode	(	const Bytes &	c,
		Out< Bytes >	p )

Decipher ciphertext block c into plaintext block p.

Note

Both the plaintext block and the ciphertext block must have the proper block size.