p256.c File Reference

#include <openssl/base.h>
#include <openssl/bn.h>
#include <openssl/ec.h>
#include <openssl/err.h>
#include <openssl/mem.h>
#include <openssl/type_check.h>
#include <assert.h>
#include <string.h>
#include "../../internal.h"
#include "../delocate.h"
#include "./internal.h"
#include "../../../third_party/fiat/p256_32.h"
#include "./p256_table.h"

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Macros
#define	FIAT_P256_NLIMBS   8
#define	P256_WSIZE_PUBLIC   4

Typedefs
typedef uint32_t	fiat_p256_felem[FIAT_P256_NLIMBS]
typedef uint32_t	fiat_p256_limb_t

Functions
	DEFINE_METHOD_FUNCTION (EC_METHOD, EC_GFp_nistp256_method)
static void	ec_GFp_nistp256_add (const EC_GROUP *group, EC_RAW_POINT *r, const EC_RAW_POINT *a, const EC_RAW_POINT *b)
static int	ec_GFp_nistp256_cmp_x_coordinate (const EC_GROUP *group, const EC_RAW_POINT *p, const EC_SCALAR *r)
static void	ec_GFp_nistp256_dbl (const EC_GROUP *group, EC_RAW_POINT *r, const EC_RAW_POINT *a)
static int	ec_GFp_nistp256_point_get_affine_coordinates (const EC_GROUP *group, const EC_RAW_POINT *point, EC_FELEM *x_out, EC_FELEM *y_out)
static void	ec_GFp_nistp256_point_mul (const EC_GROUP *group, EC_RAW_POINT *r, const EC_RAW_POINT *p, const EC_SCALAR *scalar)
static void	ec_GFp_nistp256_point_mul_base (const EC_GROUP *group, EC_RAW_POINT *r, const EC_SCALAR *scalar)
static void	ec_GFp_nistp256_point_mul_public (const EC_GROUP *group, EC_RAW_POINT *r, const EC_SCALAR *g_scalar, const EC_RAW_POINT *p, const EC_SCALAR *p_scalar)
static void	fiat_p256_cmovznz (fiat_p256_limb_t out[FIAT_P256_NLIMBS], fiat_p256_limb_t t, const fiat_p256_limb_t z[FIAT_P256_NLIMBS], const fiat_p256_limb_t nz[FIAT_P256_NLIMBS])
static void	fiat_p256_copy (fiat_p256_limb_t out[FIAT_P256_NLIMBS], const fiat_p256_limb_t in1[FIAT_P256_NLIMBS])
static void	fiat_p256_from_generic (fiat_p256_felem out, const EC_FELEM *in)
static crypto_word_t	fiat_p256_get_bit (const uint8_t *in, int i)
static void	fiat_p256_inv_square (fiat_p256_felem out, const fiat_p256_felem in)
static fiat_p256_limb_t	fiat_p256_nz (const fiat_p256_limb_t in1[FIAT_P256_NLIMBS])
static void	fiat_p256_point_add (fiat_p256_felem x3, fiat_p256_felem y3, fiat_p256_felem z3, const fiat_p256_felem x1, const fiat_p256_felem y1, const fiat_p256_felem z1, const int mixed, const fiat_p256_felem x2, const fiat_p256_felem y2, const fiat_p256_felem z2)
static void	fiat_p256_point_double (fiat_p256_felem x_out, fiat_p256_felem y_out, fiat_p256_felem z_out, const fiat_p256_felem x_in, const fiat_p256_felem y_in, const fiat_p256_felem z_in)
static void	fiat_p256_select_point (const fiat_p256_limb_t idx, size_t size, const fiat_p256_felem pre_comp[][3], fiat_p256_felem out[3])
static void	fiat_p256_select_point_affine (const fiat_p256_limb_t idx, size_t size, const fiat_p256_felem pre_comp[][2], fiat_p256_felem out[3])
static void	fiat_p256_to_generic (EC_FELEM *out, const fiat_p256_felem in)

Variables
static const fiat_p256_felem	fiat_p256_one

Macro Definition Documentation

FIAT_P256_NLIMBS

#define FIAT_P256_NLIMBS   8

Definition at line 53 of file p256.c.

P256_WSIZE_PUBLIC

#define P256_WSIZE_PUBLIC   4

Typedef Documentation

fiat_p256_felem

typedef uint32_t fiat_p256_felem[FIAT_P256_NLIMBS]

Definition at line 55 of file p256.c.

fiat_p256_limb_t

typedef uint32_t fiat_p256_limb_t

Definition at line 54 of file p256.c.

Function Documentation

DEFINE_METHOD_FUNCTION()

DEFINE_METHOD_FUNCTION	(	EC_METHOD	,
		EC_GFp_nistp256_method
	)

Definition at line 719 of file p256.c.

ec_GFp_nistp256_add()

static void ec_GFp_nistp256_add ( const EC_GROUP *  group, EC_RAW_POINT *  r, const EC_RAW_POINT *  a, const EC_RAW_POINT *  b  )

static

Definition at line 438 of file p256.c.

ec_GFp_nistp256_cmp_x_coordinate()

static int ec_GFp_nistp256_cmp_x_coordinate ( const EC_GROUP *  group, const EC_RAW_POINT *  p, const EC_SCALAR *  r  )

static

Definition at line 673 of file p256.c.

ec_GFp_nistp256_dbl()

static void ec_GFp_nistp256_dbl ( const EC_GROUP *  group, EC_RAW_POINT *  r, const EC_RAW_POINT *  a  )

static

Definition at line 454 of file p256.c.

ec_GFp_nistp256_point_get_affine_coordinates()

static int ec_GFp_nistp256_point_get_affine_coordinates ( const EC_GROUP *  group, const EC_RAW_POINT *  point, EC_FELEM *  x_out, EC_FELEM *  y_out  )

static

Definition at line 407 of file p256.c.

ec_GFp_nistp256_point_mul()

static void ec_GFp_nistp256_point_mul ( const EC_GROUP *  group, EC_RAW_POINT *  r, const EC_RAW_POINT *  p, const EC_SCALAR *  scalar  )

static

Definition at line 466 of file p256.c.

ec_GFp_nistp256_point_mul_base()

static void ec_GFp_nistp256_point_mul_base ( const EC_GROUP *  group, EC_RAW_POINT *  r, const EC_SCALAR *  scalar  )

static

Definition at line 533 of file p256.c.

ec_GFp_nistp256_point_mul_public()

static void ec_GFp_nistp256_point_mul_public ( const EC_GROUP *  group, EC_RAW_POINT *  r, const EC_SCALAR *  g_scalar, const EC_RAW_POINT *  p, const EC_SCALAR *  p_scalar  )

static

Definition at line 581 of file p256.c.

fiat_p256_cmovznz()

static void fiat_p256_cmovznz ( fiat_p256_limb_t  out[FIAT_P256_NLIMBS], fiat_p256_limb_t  t, const fiat_p256_limb_t  z[FIAT_P256_NLIMBS], const fiat_p256_limb_t  nz[FIAT_P256_NLIMBS]  )

static

Definition at line 75 of file p256.c.

fiat_p256_copy()

static void fiat_p256_copy ( fiat_p256_limb_t  out[FIAT_P256_NLIMBS], const fiat_p256_limb_t  in1[FIAT_P256_NLIMBS]  )

static

Definition at line 68 of file p256.c.

fiat_p256_from_generic()

static void fiat_p256_from_generic ( fiat_p256_felem  out, const EC_FELEM *  in  )

static

Definition at line 82 of file p256.c.

fiat_p256_get_bit()

static crypto_word_t fiat_p256_get_bit ( const uint8_t *  in, int  i  )

static

Definition at line 396 of file p256.c.

fiat_p256_inv_square()

static void fiat_p256_inv_square ( fiat_p256_felem  out, const fiat_p256_felem  in  )

static

Definition at line 101 of file p256.c.

fiat_p256_nz()

static fiat_p256_limb_t fiat_p256_nz ( const fiat_p256_limb_t  in1[FIAT_P256_NLIMBS] )

static

Definition at line 61 of file p256.c.

fiat_p256_point_add()

static void fiat_p256_point_add ( fiat_p256_felem  x3, fiat_p256_felem  y3, fiat_p256_felem  z3, const fiat_p256_felem  x1, const fiat_p256_felem  y1, const fiat_p256_felem  z1, const int  mixed, const fiat_p256_felem  x2, const fiat_p256_felem  y2, const fiat_p256_felem  z2  )

static

Definition at line 249 of file p256.c.

fiat_p256_point_double()

static void fiat_p256_point_double ( fiat_p256_felem  x_out, fiat_p256_felem  y_out, fiat_p256_felem  z_out, const fiat_p256_felem  x_in, const fiat_p256_felem  y_in, const fiat_p256_felem  z_in  )

static

Definition at line 192 of file p256.c.

fiat_p256_select_point()

static void fiat_p256_select_point ( const fiat_p256_limb_t  idx, size_t  size, const fiat_p256_felem  pre_comp[][3], fiat_p256_felem  out[3]  )

static

Definition at line 383 of file p256.c.

fiat_p256_select_point_affine()

static void fiat_p256_select_point_affine ( const fiat_p256_limb_t  idx, size_t  size, const fiat_p256_felem  pre_comp[][2], fiat_p256_felem  out[3]  )

static

Definition at line 369 of file p256.c.

fiat_p256_to_generic()

static void fiat_p256_to_generic ( EC_FELEM *  out, const fiat_p256_felem  in  )

static

Definition at line 86 of file p256.c.

Variable Documentation

fiat_p256_one

const fiat_p256_felem fiat_p256_one

static

Initial value:

= {
    0x1, 0x0, 0x0, 0xffffffff, 0xffffffff, 0xffffffff, 0xfffffffe, 0x0}

Definition at line 56 of file p256.c.