133 lines
3.2 KiB
C
133 lines
3.2 KiB
C
// Copyright (c) 2012-2014, The CryptoNote developers, The Bytecoin developers
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//
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// This file is part of Bytecoin.
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//
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// Bytecoin is free software: you can redistribute it and/or modify
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// it under the terms of the GNU Lesser General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Bytecoin is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU Lesser General Public License for more details.
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//
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// You should have received a copy of the GNU Lesser General Public License
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// along with Bytecoin. If not, see <http://www.gnu.org/licenses/>.
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#pragma once
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/* From fe.h */
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typedef int32_t fe[10];
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/* From ge.h */
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typedef struct {
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fe X;
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fe Y;
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fe Z;
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} ge_p2;
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typedef struct {
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fe X;
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fe Y;
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fe Z;
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fe T;
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} ge_p3;
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typedef struct {
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fe X;
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fe Y;
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fe Z;
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fe T;
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} ge_p1p1;
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typedef struct {
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fe yplusx;
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fe yminusx;
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fe xy2d;
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} ge_precomp;
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typedef struct {
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fe YplusX;
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fe YminusX;
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fe Z;
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fe T2d;
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} ge_cached;
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/* From ge_add.c */
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void ge_add(ge_p1p1 *, const ge_p3 *, const ge_cached *);
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/* From ge_double_scalarmult.c, modified */
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typedef ge_cached ge_dsmp[8];
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extern const ge_precomp ge_Bi[8];
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void ge_dsm_precomp(ge_dsmp r, const ge_p3 *s);
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void ge_double_scalarmult_base_vartime(ge_p2 *, const unsigned char *, const ge_p3 *, const unsigned char *);
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/* From ge_frombytes.c, modified */
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extern const fe fe_sqrtm1;
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extern const fe fe_d;
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int ge_frombytes_vartime(ge_p3 *, const unsigned char *);
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/* From ge_p1p1_to_p2.c */
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void ge_p1p1_to_p2(ge_p2 *, const ge_p1p1 *);
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/* From ge_p1p1_to_p3.c */
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void ge_p1p1_to_p3(ge_p3 *, const ge_p1p1 *);
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/* From ge_p2_dbl.c */
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void ge_p2_dbl(ge_p1p1 *, const ge_p2 *);
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/* From ge_p3_to_cached.c */
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extern const fe fe_d2;
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void ge_p3_to_cached(ge_cached *, const ge_p3 *);
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/* From ge_p3_to_p2.c */
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void ge_p3_to_p2(ge_p2 *, const ge_p3 *);
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/* From ge_p3_tobytes.c */
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void ge_p3_tobytes(unsigned char *, const ge_p3 *);
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/* From ge_scalarmult_base.c */
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extern const ge_precomp ge_base[32][8];
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void ge_scalarmult_base(ge_p3 *, const unsigned char *);
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/* From ge_tobytes.c */
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void ge_tobytes(unsigned char *, const ge_p2 *);
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/* From sc_reduce.c */
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void sc_reduce(unsigned char *);
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/* New code */
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void ge_scalarmult(ge_p2 *, const unsigned char *, const ge_p3 *);
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void ge_double_scalarmult_precomp_vartime(ge_p2 *, const unsigned char *, const ge_p3 *, const unsigned char *, const ge_dsmp);
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void ge_mul8(ge_p1p1 *, const ge_p2 *);
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extern const fe fe_ma2;
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extern const fe fe_ma;
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extern const fe fe_fffb1;
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extern const fe fe_fffb2;
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extern const fe fe_fffb3;
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extern const fe fe_fffb4;
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void ge_fromfe_frombytes_vartime(ge_p2 *, const unsigned char *);
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void sc_0(unsigned char *);
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void sc_reduce32(unsigned char *);
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void sc_add(unsigned char *, const unsigned char *, const unsigned char *);
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void sc_sub(unsigned char *, const unsigned char *, const unsigned char *);
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void sc_mulsub(unsigned char *, const unsigned char *, const unsigned char *, const unsigned char *);
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int sc_check(const unsigned char *);
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int sc_isnonzero(const unsigned char *); /* Doesn't normalize */
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