ascon-x3-c64.c File Reference

#include "ascon-masked-state.h"
#include "ascon-masked-backend.h"
#include "core/ascon-util.h"

Go to the source code of this file.

Macros
#define	and_not_xor(x, y, z)
	Computes x ^= (~y & z) with a 3-share masked representation. More...
#define	ROUND_CONSTANT(round)    (~(uint64_t)(((0x0F - (round)) << 4) | (round)))

Functions
void	ascon_x3_permute (ascon_masked_state_t *state, uint8_t first_round, uint64_t preserve[2])

Macro Definition Documentation

and_not_xor

#define and_not_xor	(		x,
			y,
			z
	)

Value:

    do { \
        x##_a ^= (~(y##_a) & z##_a); \
        x##_a ^= ((y##_a) & ascon_mask64_unrotate_share1_0(z##_b)); \
        x##_a ^= (y##_a & ascon_mask64_unrotate_share2_0(z##_c)); \
        \
        x##_b ^= (y##_b & ascon_mask64_rotate_share1_0(z##_a)); \
        x##_b ^= ((~y##_b) & z##_b); \
        x##_b ^= (y##_b & ascon_mask64_unrotate_share2_1(z##_c)); \
        \
        x##_c ^= (y##_c & ascon_mask64_rotate_share2_0(~z##_a)); \
        x##_c ^= (y##_c & ascon_mask64_rotate_share2_1(z##_b)); \
        x##_c ^= (y##_c | z##_c); \
    } while (0)

Computes x ^= (~y & z) with a 3-share masked representation.

Parameters

x	Output variable to XOR with.
y	First input variable.
z	Second input variable.

Definition at line 36 of file ascon-x3-c64.c.

ROUND_CONSTANT

#define ROUND_CONSTANT

(

round

)

(~(uint64_t)(((0x0F - (round)) << 4) | (round)))

Definition at line 53 of file ascon-x3-c64.c.

Function Documentation

ascon_x3_permute()

void ascon_x3_permute	(	ascon_masked_state_t *	state,
		uint8_t	first_round,
		uint64_t	preserve[2]
	)

Definition at line 56 of file ascon-x3-c64.c.