keepass::TwofishCipher Class Reference

Twofish-256 block cipher implementation. More...

#include <cipher.hh>

Inheritance diagram for keepass::TwofishCipher:

Public Member Functions
	TwofishCipher (const uint8_t *key)
	Constructs a Twofish cipher with a zero initialization vector.
	TwofishCipher (const uint8_t *key, const std::array< uint8_t, 16 > &init_vec)
	Constructs a Twofish cipher with a given initialization vector.
	~TwofishCipher ()
	Zeroizes the expanded key schedule.
const std::array< uint8_t, 16 > &	InitializationVector () const override
	Returns the initialization vector.
void	Decrypt (const std::array< uint8_t, 16 > &src, std::array< uint8_t, 16 > &dst) const override
	Decrypts a single 16-byte block using Twofish-256.
void	Encrypt (const std::array< uint8_t, 16 > &src, std::array< uint8_t, 16 > &dst) const override
	Encrypts a single 16-byte block using Twofish-256.
Public Member Functions inherited from keepass::Cipher< 16 >
virtual void	Decrypt (const std::array< uint8_t, N > &src, std::array< uint8_t, N > &dst) const=0
	Decrypts a single block.
virtual void	Encrypt (const std::array< uint8_t, N > &src, std::array< uint8_t, N > &dst) const=0
	Encrypts a single block.

Detailed Description

Twofish-256 block cipher implementation.

Constructor & Destructor Documentation

TwofishCipher() [1/2]

keepass::TwofishCipher::TwofishCipher ( const uint8_t *  key )

inlineexplicit

Constructs a Twofish cipher with a zero initialization vector.

Parameters

key	The 256-bit (32-byte) encryption key.

TwofishCipher() [2/2]

keepass::TwofishCipher::TwofishCipher	(	const uint8_t *	key,
		const std::array< uint8_t, 16 > &	init_vec
	)

Constructs a Twofish cipher with a given initialization vector.

Parameters

key	The 256-bit (32-byte) encryption key.
init_vec	The 16-byte initialization vector.

Member Function Documentation

Decrypt()

void keepass::TwofishCipher::Decrypt ( const std::array< uint8_t, 16 > &  src, std::array< uint8_t, 16 > &  dst  ) const

override

Decrypts a single 16-byte block using Twofish-256.

Parameters

src	The ciphertext block to decrypt.
dst	The resulting plaintext block.

Encrypt()

void keepass::TwofishCipher::Encrypt ( const std::array< uint8_t, 16 > &  src, std::array< uint8_t, 16 > &  dst  ) const

override

Encrypts a single 16-byte block using Twofish-256.

Parameters

src	The plaintext block to encrypt.
dst	The resulting ciphertext block.

InitializationVector()

const std::array< uint8_t, 16 > & keepass::TwofishCipher::InitializationVector ( ) const

inlineoverridevirtual

Returns the initialization vector.

Implements keepass::Cipher< 16 >.

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

• cipher.hh