2015-01-02 17:52:46 +01:00
|
|
|
// Copyright (c) 2014-2015, The Monero Project
|
2014-07-23 15:03:52 +02:00
|
|
|
//
|
|
|
|
// All rights reserved.
|
|
|
|
//
|
|
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
|
|
// permitted provided that the following conditions are met:
|
|
|
|
//
|
|
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
|
|
// conditions and the following disclaimer.
|
|
|
|
//
|
|
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
|
|
// of conditions and the following disclaimer in the documentation and/or other
|
|
|
|
// materials provided with the distribution.
|
|
|
|
//
|
|
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
|
|
// used to endorse or promote products derived from this software without specific
|
|
|
|
// prior written permission.
|
|
|
|
//
|
|
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
//
|
|
|
|
// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
|
2014-03-03 23:07:58 +01:00
|
|
|
|
2013-11-14 23:28:17 +01:00
|
|
|
#pragma once
|
|
|
|
|
|
|
|
/* From fe.h */
|
|
|
|
|
|
|
|
typedef int32_t fe[10];
|
|
|
|
|
|
|
|
/* From ge.h */
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
fe X;
|
|
|
|
fe Y;
|
|
|
|
fe Z;
|
|
|
|
} ge_p2;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
fe X;
|
|
|
|
fe Y;
|
|
|
|
fe Z;
|
|
|
|
fe T;
|
|
|
|
} ge_p3;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
fe X;
|
|
|
|
fe Y;
|
|
|
|
fe Z;
|
|
|
|
fe T;
|
|
|
|
} ge_p1p1;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
fe yplusx;
|
|
|
|
fe yminusx;
|
|
|
|
fe xy2d;
|
|
|
|
} ge_precomp;
|
|
|
|
|
|
|
|
typedef struct {
|
|
|
|
fe YplusX;
|
|
|
|
fe YminusX;
|
|
|
|
fe Z;
|
|
|
|
fe T2d;
|
|
|
|
} ge_cached;
|
|
|
|
|
|
|
|
/* From ge_add.c */
|
|
|
|
|
|
|
|
void ge_add(ge_p1p1 *, const ge_p3 *, const ge_cached *);
|
|
|
|
|
|
|
|
/* From ge_double_scalarmult.c, modified */
|
|
|
|
|
|
|
|
typedef ge_cached ge_dsmp[8];
|
|
|
|
extern const ge_precomp ge_Bi[8];
|
|
|
|
void ge_dsm_precomp(ge_dsmp r, const ge_p3 *s);
|
|
|
|
void ge_double_scalarmult_base_vartime(ge_p2 *, const unsigned char *, const ge_p3 *, const unsigned char *);
|
|
|
|
|
|
|
|
/* From ge_frombytes.c, modified */
|
|
|
|
|
|
|
|
extern const fe fe_sqrtm1;
|
|
|
|
extern const fe fe_d;
|
|
|
|
int ge_frombytes_vartime(ge_p3 *, const unsigned char *);
|
|
|
|
|
|
|
|
/* From ge_p1p1_to_p2.c */
|
|
|
|
|
|
|
|
void ge_p1p1_to_p2(ge_p2 *, const ge_p1p1 *);
|
|
|
|
|
|
|
|
/* From ge_p1p1_to_p3.c */
|
|
|
|
|
|
|
|
void ge_p1p1_to_p3(ge_p3 *, const ge_p1p1 *);
|
|
|
|
|
|
|
|
/* From ge_p2_dbl.c */
|
|
|
|
|
|
|
|
void ge_p2_dbl(ge_p1p1 *, const ge_p2 *);
|
|
|
|
|
|
|
|
/* From ge_p3_to_cached.c */
|
|
|
|
|
|
|
|
extern const fe fe_d2;
|
|
|
|
void ge_p3_to_cached(ge_cached *, const ge_p3 *);
|
|
|
|
|
|
|
|
/* From ge_p3_to_p2.c */
|
|
|
|
|
|
|
|
void ge_p3_to_p2(ge_p2 *, const ge_p3 *);
|
|
|
|
|
|
|
|
/* From ge_p3_tobytes.c */
|
|
|
|
|
|
|
|
void ge_p3_tobytes(unsigned char *, const ge_p3 *);
|
|
|
|
|
|
|
|
/* From ge_scalarmult_base.c */
|
|
|
|
|
|
|
|
extern const ge_precomp ge_base[32][8];
|
|
|
|
void ge_scalarmult_base(ge_p3 *, const unsigned char *);
|
|
|
|
|
|
|
|
/* From ge_tobytes.c */
|
|
|
|
|
|
|
|
void ge_tobytes(unsigned char *, const ge_p2 *);
|
|
|
|
|
|
|
|
/* From sc_reduce.c */
|
|
|
|
|
|
|
|
void sc_reduce(unsigned char *);
|
|
|
|
|
|
|
|
/* New code */
|
|
|
|
|
|
|
|
void ge_scalarmult(ge_p2 *, const unsigned char *, const ge_p3 *);
|
|
|
|
void ge_double_scalarmult_precomp_vartime(ge_p2 *, const unsigned char *, const ge_p3 *, const unsigned char *, const ge_dsmp);
|
|
|
|
void ge_mul8(ge_p1p1 *, const ge_p2 *);
|
|
|
|
extern const fe fe_ma2;
|
|
|
|
extern const fe fe_ma;
|
|
|
|
extern const fe fe_fffb1;
|
|
|
|
extern const fe fe_fffb2;
|
|
|
|
extern const fe fe_fffb3;
|
|
|
|
extern const fe fe_fffb4;
|
|
|
|
void ge_fromfe_frombytes_vartime(ge_p2 *, const unsigned char *);
|
|
|
|
void sc_0(unsigned char *);
|
|
|
|
void sc_reduce32(unsigned char *);
|
|
|
|
void sc_add(unsigned char *, const unsigned char *, const unsigned char *);
|
|
|
|
void sc_sub(unsigned char *, const unsigned char *, const unsigned char *);
|
|
|
|
void sc_mulsub(unsigned char *, const unsigned char *, const unsigned char *, const unsigned char *);
|
|
|
|
int sc_check(const unsigned char *);
|
2014-03-03 23:07:58 +01:00
|
|
|
int sc_isnonzero(const unsigned char *); /* Doesn't normalize */
|