AES block cipher with 256-bit keys. More...

#include <AES.h>

Inheritance diagram for AES256:

Public Member Functions
	AES256 ()
	Constructs an AES 256-bit block cipher with no initial key. More...

size_t	keySize () const
	Size of a 256-bit AES key in bytes. More...

bool	setKey (const uint8_t *key, size_t len)
	Sets the key to use for future encryption and decryption operations. More...

Public Member Functions inherited from AESCommon
virtual	~AESCommon ()
	Destroys this AES block cipher object after clearing sensitive information.

size_t	blockSize () const
	Size of an AES block in bytes. More...

void	encryptBlock (uint8_t output, const uint8_t input)
	Encrypts a single block using this cipher. More...

void	decryptBlock (uint8_t output, const uint8_t input)
	Decrypts a single block using this cipher. More...

void	clear ()
	Clears all security-sensitive state from this block cipher. More...

Public Member Functions inherited from BlockCipher
	BlockCipher ()
	Constructs a block cipher.

virtual	~BlockCipher ()
	Destroys this block cipher object. More...

Additional Inherited Members
Protected Member Functions inherited from AESCommon
	AESCommon ()
	Constructs an AES block cipher object.

Detailed Description

AES block cipher with 256-bit keys.

Definition at line 103 of file AES.h.

Constructor & Destructor Documentation

AES256::AES256 ( )

Constructs an AES 256-bit block cipher with no initial key.

This constructor must be followed by a call to setKey() before the block cipher can be used for encryption or decryption.

Definition at line 42 of file AES256.cpp.

size_t AES256::keySize ( ) const

virtual

Size of a 256-bit AES key in bytes.

Implements BlockCipher.

Definition at line 57 of file AES256.cpp.

virtual

Sets the key to use for future encryption and decryption operations.

Parameters

key	The key to use.
len	The length of the key.

Returns: Returns false if the key length is not supported, or the key is somehow "weak" and unusable by this cipher.

Use clear() or the destructor to remove the key and any other sensitive data from the object once encryption or decryption is complete.

Implements BlockCipher.

Definition at line 62 of file AES256.cpp.

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