a469abf05e
Reviewed-by: Bernd Edlinger <bernd.edlinger@hotmail.de> (Merged from https://github.com/openssl/openssl/pull/5105)
103 lines
3.2 KiB
C
103 lines
3.2 KiB
C
/**
|
|
* @file p448/f_field.h
|
|
* @author Mike Hamburg
|
|
*
|
|
* @copyright
|
|
* Copyright (c) 2015-2016 Cryptography Research, Inc. \n
|
|
* Released under the MIT License. See LICENSE.txt for license information.
|
|
*
|
|
* @brief Field-specific code for 2^448 - 2^224 - 1.
|
|
*
|
|
* @warning This file was automatically generated in Python.
|
|
* Please do not edit it.
|
|
*/
|
|
|
|
#ifndef __P448_F_FIELD_H__
|
|
#define __P448_F_FIELD_H__ 1
|
|
|
|
#include "constant_time.h"
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
|
|
#include "word.h"
|
|
|
|
#define __DECAF_448_GF_DEFINED__ 1
|
|
#define NLIMBS (64/sizeof(word_t))
|
|
#define X_SER_BYTES 56
|
|
#define SER_BYTES 56
|
|
typedef struct gf_448_s {
|
|
word_t limb[NLIMBS];
|
|
} __attribute__((aligned(32))) gf_448_s, gf_448_t[1];
|
|
|
|
#define GF_LIT_LIMB_BITS 56
|
|
#define GF_BITS 448
|
|
#define ZERO gf_448_ZERO
|
|
#define ONE gf_448_ONE
|
|
#define MODULUS gf_448_MODULUS
|
|
#define gf gf_448_t
|
|
#define gf_s gf_448_s
|
|
#define gf_eq gf_448_eq
|
|
#define gf_hibit gf_448_hibit
|
|
#define gf_lobit gf_448_lobit
|
|
#define gf_copy gf_448_copy
|
|
#define gf_add gf_448_add
|
|
#define gf_sub gf_448_sub
|
|
#define gf_add_RAW gf_448_add_RAW
|
|
#define gf_sub_RAW gf_448_sub_RAW
|
|
#define gf_bias gf_448_bias
|
|
#define gf_weak_reduce gf_448_weak_reduce
|
|
#define gf_strong_reduce gf_448_strong_reduce
|
|
#define gf_mul gf_448_mul
|
|
#define gf_sqr gf_448_sqr
|
|
#define gf_mulw_unsigned gf_448_mulw_unsigned
|
|
#define gf_isr gf_448_isr
|
|
#define gf_serialize gf_448_serialize
|
|
#define gf_deserialize gf_448_deserialize
|
|
|
|
/* RFC 7748 support */
|
|
#define X_PUBLIC_BYTES X_SER_BYTES
|
|
#define X_PRIVATE_BYTES X_PUBLIC_BYTES
|
|
#define X_PRIVATE_BITS 448
|
|
|
|
#define INLINE_UNUSED __inline__ __attribute__((unused,always_inline))
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
/* Defined below in f_impl.h */
|
|
static INLINE_UNUSED void gf_copy (gf out, const gf a) { *out = *a; }
|
|
static INLINE_UNUSED void gf_add_RAW (gf out, const gf a, const gf b);
|
|
static INLINE_UNUSED void gf_sub_RAW (gf out, const gf a, const gf b);
|
|
static INLINE_UNUSED void gf_bias (gf inout, int amount);
|
|
static INLINE_UNUSED void gf_weak_reduce (gf inout);
|
|
|
|
void gf_strong_reduce (gf inout);
|
|
void gf_add (gf out, const gf a, const gf b);
|
|
void gf_sub (gf out, const gf a, const gf b);
|
|
void gf_mul (gf_s *__restrict__ out, const gf a, const gf b);
|
|
void gf_mulw_unsigned (gf_s *__restrict__ out, const gf a, uint32_t b);
|
|
void gf_sqr (gf_s *__restrict__ out, const gf a);
|
|
mask_t gf_isr(gf a, const gf x); /** a^2 x = 1, QNR, or 0 if x=0. Return true if successful */
|
|
mask_t gf_eq (const gf x, const gf y);
|
|
mask_t gf_lobit (const gf x);
|
|
mask_t gf_hibit (const gf x);
|
|
|
|
void gf_serialize (uint8_t *serial, const gf x,int with_highbit);
|
|
mask_t gf_deserialize (gf x, const uint8_t serial[SER_BYTES],int with_hibit,uint8_t hi_nmask);
|
|
|
|
|
|
#ifdef __cplusplus
|
|
} /* extern "C" */
|
|
#endif
|
|
|
|
#include "f_impl.h" /* Bring in the inline implementations */
|
|
|
|
#ifndef LIMBPERM
|
|
#define LIMBPERM(i) (i)
|
|
#endif
|
|
#define LIMB_MASK(i) (((1ull)<<LIMB_PLACE_VALUE(i))-1)
|
|
|
|
static const gf ZERO = {{{0}}}, ONE = {{{ [LIMBPERM(0)] = 1 }}};
|
|
|
|
#endif /* __P448_F_FIELD_H__ */
|