lax-cipher-tests.cc File Reference

LAX is a cipher based on a linear layer, modular addition and XOR. The linear layer is based on the generator matrix of a linear code over GF(2). The proposal of LAX is motivated by a challenge posed by Johan Wallen in his PhD thesis. More...

#include "common.hh"
#include "xdp-add.hh"

Macros
#define	LEFT   0
#define	RIGHT   1

Functions
bool	get_bit (const WORD_T x, uint32_t i)
void	set_bit (WORD_T *x, const bool bit, uint32_t i)
bool	vector_vector_dotprod (const std::array< bool, WORD_SIZE > vec1, const WORD_T vec2)
void	matrix_vector_multiply (WORD_T *res, const std::array< std::array< bool, WORD_SIZE >, WORD_SIZE > mat, const WORD_T vec)
void	print_vector (const WORD_T vec)
void	print_matrix (const std::array< std::array< bool, WORD_SIZE >, WORD_SIZE > mat)
void	lax_round (const WORD_T in[2], WORD_T out[2], const std::array< std::array< bool, WORD_SIZE >, WORD_SIZE > L)
void	lax_cipher (const uint32_t nrounds, const WORD_T in[2], WORD_T out[2], std::array< std::array< bool, WORD_SIZE >, WORD_SIZE > L)
void	test_lax_cipher ()
void	test_matrix_multiply ()
void	test_minimum_distance ()
void	test_lax_two_rounds ()
void	test_lax_three_rounds ()
void	test_lax_differential_3r ()
int	main ()

Detailed Description

LAX is a cipher based on a linear layer, modular addition and XOR. The linear layer is based on the generator matrix of a linear code over GF(2). The proposal of LAX is motivated by a challenge posed by Johan Wallen in his PhD thesis.

Author

V.Velichkov, vesse.nosp@m.lin..nosp@m.velic.nosp@m.hkov.nosp@m.@uni..nosp@m.lu

Date

2012-2015

Function Documentation

void lax_cipher	(	const uint32_t	nrounds,
		const WORD_T	in[2],
		WORD_T	out[2],
		std::array< std::array< bool, WORD_SIZE >, WORD_SIZE >	L
	)

LAX cipher

void lax_round	(	const WORD_T	in[2],
		WORD_T	out[2],
		const std::array< std::array< bool, WORD_SIZE >, WORD_SIZE >	L
	)

One round of LAX cipher

int main

(

)

Main function.