anch::crypto::CTR< Cipher > Class Template Reference

Counter implementation. More...

#include <ctr.hpp>

Inheritance diagram for anch::crypto::CTR< Cipher >:

Collaboration diagram for anch::crypto::CTR< Cipher >:

Public Member Functions
	CTR (const std::array< uint8_t, Cipher::getBlockSize()> &nonce, unsigned int nbThread=1)
virtual	~CTR ()
Public Member Functions inherited from anch::crypto::BlockCipherModeOfOperation< CTR< Cipher >, Cipher >
void	cipher (std::istream &input, std::ostream &output, const std::string &key)
void	decipher (std::istream &input, std::ostream &output, const std::string &key)
void	setNbThread (unsigned int nbThread)

Protected Member Functions
virtual std::size_t	cipherBlock (std::array< uint8_t, Cipher::getBlockSize()> &input, std::streamsize nbRead, std::array< uint8_t, Cipher::getBlockSize()> &output, uint32_t index, Cipher &cipher) override
virtual std::size_t	decipherBlock (std::array< uint8_t, Cipher::getBlockSize()> &input, std::array< uint8_t, Cipher::getBlockSize()> &, std::streamsize nbRead, bool, std::array< uint8_t, Cipher::getBlockSize()> &output, uint32_t index, Cipher &cipher) override
virtual const std::array< uint8_t, Cipher::getBlockSize()> &	reset ()
Protected Member Functions inherited from anch::crypto::BlockCipherModeOfOperation< CTR< Cipher >, Cipher >
	BlockCipherModeOfOperation (bool cipherParallelizable, bool decipherParallelizable, unsigned int nbThread=1)
virtual	~BlockCipherModeOfOperation ()

Detailed Description

template<typename Cipher>
class anch::crypto::CTR< Cipher >

Counter implementation.

CTR mode is also known as ICM (integer counter mode) and SIC (segmented integer counter).

Since

0.1

Author

Vincent Lachenal

Constructor & Destructor Documentation

CTR()

template<typename Cipher>

anch::crypto::CTR< Cipher >::CTR	(	const std::array< uint8_t, Cipher::getBlockSize()> &	nonce,
		unsigned int	nbThread = 1 )

CTR constructor

Parameters

nonce	the nonce
nbThread	the maximum number of thread to run in parallel (default to 1). If is set to 0, it will be set to the number of CPU if found (1 otherwise).

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~CTR()

template<typename Cipher>

anch::crypto::CTR< Cipher >::~CTR ( )

virtual

CTR destructor

Member Function Documentation

cipherBlock()

template<typename Cipher>

std::size_t anch::crypto::CTR< Cipher >::cipherBlock ( std::array< uint8_t, Cipher::getBlockSize()> & input, std::streamsize nbRead, std::array< uint8_t, Cipher::getBlockSize()> & output, uint32_t index, Cipher & cipher )

overrideprotectedvirtual

Cipher a block.
This method will handle initialization vector management.

Parameters

input	the input block to cipher
nbRead	the size of block which has been read
output	the output block
index	the block index
cipher	the cipher instance

Returns

the number of bytes to write

Implements anch::crypto::BlockCipherModeOfOperation< CTR< Cipher >, Cipher >.

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decipherBlock()

template<typename Cipher>

std::size_t anch::crypto::CTR< Cipher >::decipherBlock ( std::array< uint8_t, Cipher::getBlockSize()> & input, std::array< uint8_t, Cipher::getBlockSize()> & , std::streamsize nbRead, bool , std::array< uint8_t, Cipher::getBlockSize()> & output, uint32_t index, Cipher & cipher )

overrideprotectedvirtual

Decipher a block.
This method will handle initialization vector management.

Parameters

input	the input block to decipher
nbRead	the size of block which has been read
output	the output block
index	the block index
cipher	the cipher instance

Returns

the number of bytes to write

Implements anch::crypto::BlockCipherModeOfOperation< CTR< Cipher >, Cipher >.

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reset()

template<typename Cipher>

const std::array< uint8_t, Cipher::getBlockSize()> & anch::crypto::CTR< Cipher >::reset ( )

protectedvirtual

Reset block cipher mode of operation context

Returns

the initial context

Implements anch::crypto::BlockCipherModeOfOperation< CTR< Cipher >, Cipher >.

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

• anch-crypto/inc/crypto/cipher/ctr.hpp