cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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ecc_curve.h (1337B)

      1/* SPDX-License-Identifier: GPL-2.0 */
      2/* Copyright (c) 2021 HiSilicon */
      3
      4#ifndef _CRYTO_ECC_CURVE_H
      5#define _CRYTO_ECC_CURVE_H
      6
      7#include <linux/types.h>
      8
      9/**
     10 * struct ecc_point - elliptic curve point in affine coordinates
     11 *
     12 * @x:		X coordinate in vli form.
     13 * @y:		Y coordinate in vli form.
     14 * @ndigits:	Length of vlis in u64 qwords.
     15 */
     16struct ecc_point {
     17	u64 *x;
     18	u64 *y;
     19	u8 ndigits;
     20};
     21
     22/**
     23 * struct ecc_curve - definition of elliptic curve
     24 *
     25 * @name:	Short name of the curve.
     26 * @g:		Generator point of the curve.
     27 * @p:		Prime number, if Barrett's reduction is used for this curve
     28 *		pre-calculated value 'mu' is appended to the @p after ndigits.
     29 *		Use of Barrett's reduction is heuristically determined in
     30 *		vli_mmod_fast().
     31 * @n:		Order of the curve group.
     32 * @a:		Curve parameter a.
     33 * @b:		Curve parameter b.
     34 */
     35struct ecc_curve {
     36	char *name;
     37	struct ecc_point g;
     38	u64 *p;
     39	u64 *n;
     40	u64 *a;
     41	u64 *b;
     42};
     43
     44/**
     45 * ecc_get_curve() - get elliptic curve;
     46 * @curve_id:           Curves IDs:
     47 *                      defined in 'include/crypto/ecdh.h';
     48 *
     49 * Returns curve if get curve succssful, NULL otherwise
     50 */
     51const struct ecc_curve *ecc_get_curve(unsigned int curve_id);
     52
     53/**
     54 * ecc_get_curve25519() - get curve25519 curve;
     55 *
     56 * Returns curve25519
     57 */
     58const struct ecc_curve *ecc_get_curve25519(void);
     59
     60#endif