ascon-c32.c File Reference

#include <ascon/permutation.h>
#include "ascon-select-backend.h"
#include "ascon-sliced32.h"
#include "ascon-util.h"

Go to the source code of this file.

Macros
#define	ROUND_CONSTANT_PAIR(rc1, rc2)    (~((uint32_t)(rc1))), (~((uint32_t)(rc2)))
#define	ascon_sbox(x0, x1, x2, x3, x4)

Functions
void	ascon_permute (ascon_state_t *state, uint8_t first_round)
	Permutes the ASCON state with a specified number of rounds. More...

Macro Definition Documentation

ascon_sbox

#define ascon_sbox	(		x0,
			x1,
			x2,
			x3,
			x4
	)

Value:

            do { \
                x0 ^= x4;   x4 ^= x3;   x2 ^= x1; \
                t0 = ~x0;   t1 = ~x1;   t2 = ~x2;   t3 = ~x3;   t4 = ~x4; \
                t0 &= x1;   t1 &= x2;   t2 &= x3;   t3 &= x4;   t4 &= x0; \
                x0 ^= t1;   x1 ^= t2;   x2 ^= t3;   x3 ^= t4;   x4 ^= t0; \
                x1 ^= x0;   x0 ^= x4;   x3 ^= x2;   /* x2 = ~x2; */ \
            } while (0)

ROUND_CONSTANT_PAIR

#define ROUND_CONSTANT_PAIR	(		rc1,
			rc2
	)		(~((uint32_t)(rc1))), (~((uint32_t)(rc2)))

Definition at line 33 of file ascon-c32.c.

Function Documentation

ascon_permute()

void ascon_permute	(	ascon_state_t *	state,
		uint8_t	first_round
	)

Permutes the ASCON state with a specified number of rounds.

Parameters

state	The ASCON state in "operational" form.
first_round	The first round to execute, between 0 and 11. The number of rounds will be 12 - first_round.

Definition at line 36 of file ascon-c32.c.