Diff: wolfssl/wolfcrypt/fe_operations.h

Revision:

17:ff9d1e86ad5f

Parent:

16:048e5e270a58

diff -r 048e5e270a58 -r ff9d1e86ad5f wolfssl/wolfcrypt/fe_operations.h
--- a/wolfssl/wolfcrypt/fe_operations.h	Tue Nov 19 14:32:16 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,187 +0,0 @@
-/* fe_operations.h
- *
- * Copyright (C) 2006-2017 wolfSSL Inc.
- *
- * This file is part of wolfSSL.
- *
- * wolfSSL is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * wolfSSL is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
- */
-
-
-#ifndef WOLF_CRYPT_FE_OPERATIONS_H
-#define WOLF_CRYPT_FE_OPERATIONS_H
-
-#include <wolfssl/wolfcrypt/settings.h>
-
-#if defined(HAVE_CURVE25519) || defined(HAVE_ED25519)
-
-#if !defined(CURVE25519_SMALL) || !defined(ED25519_SMALL)
-    #include <stdint.h>
-#endif
-
-#include <wolfssl/wolfcrypt/types.h>
-
-#if defined(USE_INTEL_SPEEDUP) && !defined(NO_CURVED25519_X64)
-    #define CURVED25519_X64
-#elif defined(HAVE___UINT128_T) && !defined(NO_CURVED25519_128BIT)
-    #define CURVED25519_128BIT
-#endif
-
-/*
-fe means field element.
-Here the field is \Z/(2^255-19).
-An element t, entries t[0]...t[9], represents the integer
-t[0]+2^26 t[1]+2^51 t[2]+2^77 t[3]+2^102 t[4]+...+2^230 t[9].
-Bounds on each t[i] vary depending on context.
-*/
-
-#if defined(CURVE25519_SMALL) || defined(ED25519_SMALL)
-    #define F25519_SIZE 32
-
-    WOLFSSL_LOCAL void lm_copy(byte*, const byte*);
-    WOLFSSL_LOCAL void lm_add(byte*, const byte*, const byte*);
-    WOLFSSL_LOCAL void lm_sub(byte*, const byte*, const byte*);
-    WOLFSSL_LOCAL void lm_neg(byte*,const byte*);
-    WOLFSSL_LOCAL void lm_invert(byte*, const byte*);
-    WOLFSSL_LOCAL void lm_mul(byte*,const byte*,const byte*);
-#endif
-
-
-#if !defined(FREESCALE_LTC_ECC)
-WOLFSSL_LOCAL void fe_init(void);
-
-WOLFSSL_LOCAL int  curve25519(byte * q, byte * n, byte * p);
-#endif
-
-/* default to be faster but take more memory */
-#if !defined(CURVE25519_SMALL) || !defined(ED25519_SMALL)
-
-#ifdef CURVED25519_X64
-    typedef int64_t  fe[4];
-#elif defined(CURVED25519_128BIT)
-    typedef int64_t  fe[5];
-#else
-    typedef int32_t  fe[10];
-#endif
-
-WOLFSSL_LOCAL void fe_copy(fe, const fe);
-WOLFSSL_LOCAL void fe_add(fe, const fe, const fe);
-WOLFSSL_LOCAL void fe_neg(fe,const fe);
-WOLFSSL_LOCAL void fe_sub(fe, const fe, const fe);
-WOLFSSL_LOCAL void fe_invert(fe, const fe);
-WOLFSSL_LOCAL void fe_mul(fe,const fe,const fe);
-
-
-/* Based On Daniel J Bernstein's curve25519 and ed25519 Public Domain ref10
-   work. */
-
-WOLFSSL_LOCAL void fe_0(fe);
-WOLFSSL_LOCAL void fe_1(fe);
-WOLFSSL_LOCAL int  fe_isnonzero(const fe);
-WOLFSSL_LOCAL int  fe_isnegative(const fe);
-WOLFSSL_LOCAL void fe_tobytes(unsigned char *, const fe);
-WOLFSSL_LOCAL void fe_sq(fe, const fe);
-WOLFSSL_LOCAL void fe_sq2(fe,const fe);
-WOLFSSL_LOCAL void fe_frombytes(fe,const unsigned char *);
-WOLFSSL_LOCAL void fe_cswap(fe, fe, int);
-WOLFSSL_LOCAL void fe_mul121666(fe,fe);
-WOLFSSL_LOCAL void fe_cmov(fe,const fe, int);
-WOLFSSL_LOCAL void fe_pow22523(fe,const fe);
-
-/* 64 type needed for SHA512 */
-WOLFSSL_LOCAL uint64_t load_3(const unsigned char *in);
-WOLFSSL_LOCAL uint64_t load_4(const unsigned char *in);
-
-#ifdef CURVED25519_X64
-WOLFSSL_LOCAL void fe_ge_to_p2(fe rx, fe ry, fe rz, const fe px, const fe py,
-                               const fe pz, const fe pt);
-WOLFSSL_LOCAL void fe_ge_to_p3(fe rx, fe ry, fe rz, fe rt, const fe px,
-                               const fe py, const fe pz, const fe pt);
-WOLFSSL_LOCAL void fe_ge_dbl(fe rx, fe ry, fe rz, fe rt, const fe px,
-                             const fe py, const fe pz);
-WOLFSSL_LOCAL void fe_ge_madd(fe rx, fe ry, fe rz, fe rt, const fe px,
-                              const fe py, const fe pz, const fe pt,
-                              const fe qxy2d, const fe qyplusx,
-                              const fe qyminusx);
-WOLFSSL_LOCAL void fe_ge_msub(fe rx, fe ry, fe rz, fe rt, const fe px,
-                              const fe py, const fe pz, const fe pt,
-                              const fe qxy2d, const fe qyplusx,
-                              const fe qyminusx);
-WOLFSSL_LOCAL void fe_ge_add(fe rx, fe ry, fe rz, fe rt, const fe px,
-                             const fe py, const fe pz, const fe pt, const fe qz,
-                             const fe qt2d, const fe qyplusx,
-                             const fe qyminusx);
-WOLFSSL_LOCAL void fe_ge_sub(fe rx, fe ry, fe rz, fe rt, const fe px,
-                             const fe py, const fe pz, const fe pt, const fe qz,
-                             const fe qt2d, const fe qyplusx,
-                             const fe qyminusx);
-WOLFSSL_LOCAL void fe_cmov_table(fe* r, fe* base, signed char b);
-#endif /* CURVED25519_X64 */
-#endif /* !CURVE25519_SMALL || !ED25519_SMALL */
-
-/* Use less memory and only 32bit types or less, but is slower
-   Based on Daniel Beer's public domain work. */
-#if defined(CURVE25519_SMALL) || defined(ED25519_SMALL)
-static const byte c25519_base_x[F25519_SIZE] = {9};
-static const byte f25519_zero[F25519_SIZE]   = {0};
-static const byte f25519_one[F25519_SIZE]    = {1};
-static const byte fprime_zero[F25519_SIZE]   = {0};
-static const byte fprime_one[F25519_SIZE]    = {1};
-
-WOLFSSL_LOCAL void fe_load(byte *x, word32 c);
-WOLFSSL_LOCAL void fe_normalize(byte *x);
-WOLFSSL_LOCAL void fe_inv__distinct(byte *r, const byte *x);
-
-/* Conditional copy. If condition == 0, then zero is copied to dst. If
- * condition == 1, then one is copied to dst. Any other value results in
- * undefined behavior.
- */
-WOLFSSL_LOCAL void fe_select(byte *dst, const byte *zero, const byte *one,
-		   byte condition);
-
-/* Multiply a point by a small constant. The two pointers are not
- * required to be distinct.
- *
- * The constant must be less than 2^24.
- */
-WOLFSSL_LOCAL void fe_mul_c(byte *r, const byte *a, word32 b);
-WOLFSSL_LOCAL void fe_mul__distinct(byte *r, const byte *a, const byte *b);
-
-/* Compute one of the square roots of the field element, if the element
- * is square. The other square is -r.
- *
- * If the input is not square, the returned value is a valid field
- * element, but not the correct answer. If you don't already know that
- * your element is square, you should square the return value and test.
- */
-WOLFSSL_LOCAL void fe_sqrt(byte *r, const byte *x);
-
-/* Conditional copy. If condition == 0, then zero is copied to dst. If
- * condition == 1, then one is copied to dst. Any other value results in
- * undefined behavior.
- */
-WOLFSSL_LOCAL void fprime_select(byte *dst, const byte *zero, const byte *one,
-		                         byte condition);
-WOLFSSL_LOCAL void fprime_add(byte *r, const byte *a, const byte *modulus);
-WOLFSSL_LOCAL void fprime_sub(byte *r, const byte *a, const byte *modulus);
-WOLFSSL_LOCAL void fprime_mul(byte *r, const byte *a, const byte *b,
-		                      const byte *modulus);
-WOLFSSL_LOCAL void fprime_copy(byte *x, const byte *a);
-
-#endif /* CURVE25519_SMALL || ED25519_SMALL */
-#endif /* HAVE_CURVE25519 || HAVE_ED25519 */
-
-#endif /* WOLF_CRYPT_FE_OPERATIONS_H */
-