Wire Sysio Wire Sysion 1.0.0
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field.h
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1/***********************************************************************
2 * Copyright (c) 2013, 2014 Pieter Wuille *
3 * Distributed under the MIT software license, see the accompanying *
4 * file COPYING or https://www.opensource.org/licenses/mit-license.php.*
5 ***********************************************************************/
6
7#ifndef SECP256K1_FIELD_H
8#define SECP256K1_FIELD_H
9
21#if defined HAVE_CONFIG_H
22#include "libsecp256k1-config.h"
23#endif
24
25#include "util.h"
26
27#if defined(SECP256K1_WIDEMUL_INT128)
28#include "field_5x52.h"
29#elif defined(SECP256K1_WIDEMUL_INT64)
30#include "field_10x26.h"
31#else
32#error "Please select wide multiplication implementation"
33#endif
34
35static const secp256k1_fe secp256k1_fe_one = SECP256K1_FE_CONST(0, 0, 0, 0, 0, 0, 0, 1);
36static const secp256k1_fe secp256k1_const_beta = SECP256K1_FE_CONST(
37 0x7ae96a2bul, 0x657c0710ul, 0x6e64479eul, 0xac3434e9ul,
38 0x9cf04975ul, 0x12f58995ul, 0xc1396c28ul, 0x719501eeul
39);
40
44static void secp256k1_fe_normalize(secp256k1_fe *r);
45
47static void secp256k1_fe_normalize_weak(secp256k1_fe *r);
48
50static void secp256k1_fe_normalize_var(secp256k1_fe *r);
51
53static int secp256k1_fe_normalizes_to_zero(const secp256k1_fe *r);
54
57static int secp256k1_fe_normalizes_to_zero_var(const secp256k1_fe *r);
58
62static void secp256k1_fe_set_int(secp256k1_fe *r, int a);
63
65static void secp256k1_fe_clear(secp256k1_fe *a);
66
68static int secp256k1_fe_is_zero(const secp256k1_fe *a);
69
71static int secp256k1_fe_is_odd(const secp256k1_fe *a);
72
74static int secp256k1_fe_equal(const secp256k1_fe *a, const secp256k1_fe *b);
75
77static int secp256k1_fe_equal_var(const secp256k1_fe *a, const secp256k1_fe *b);
78
80static int secp256k1_fe_cmp_var(const secp256k1_fe *a, const secp256k1_fe *b);
81
83static int secp256k1_fe_set_b32(secp256k1_fe *r, const unsigned char *a);
84
86static void secp256k1_fe_get_b32(unsigned char *r, const secp256k1_fe *a);
87
90static void secp256k1_fe_negate(secp256k1_fe *r, const secp256k1_fe *a, int m);
91
94static void secp256k1_fe_mul_int(secp256k1_fe *r, int a);
95
97static void secp256k1_fe_add(secp256k1_fe *r, const secp256k1_fe *a);
98
101static void secp256k1_fe_mul(secp256k1_fe *r, const secp256k1_fe *a, const secp256k1_fe * SECP256K1_RESTRICT b);
102
105static void secp256k1_fe_sqr(secp256k1_fe *r, const secp256k1_fe *a);
106
112static int secp256k1_fe_sqrt(secp256k1_fe *r, const secp256k1_fe *a);
113
116static void secp256k1_fe_inv(secp256k1_fe *r, const secp256k1_fe *a);
117
119static void secp256k1_fe_inv_var(secp256k1_fe *r, const secp256k1_fe *a);
120
122static void secp256k1_fe_to_storage(secp256k1_fe_storage *r, const secp256k1_fe *a);
123
125static void secp256k1_fe_from_storage(secp256k1_fe *r, const secp256k1_fe_storage *a);
126
128static void secp256k1_fe_storage_cmov(secp256k1_fe_storage *r, const secp256k1_fe_storage *a, int flag);
129
131static void secp256k1_fe_cmov(secp256k1_fe *r, const secp256k1_fe *a, int flag);
132
136static void secp256k1_fe_half(secp256k1_fe *r);
137
140static void secp256k1_fe_get_bounds(secp256k1_fe *r, int m);
141
142#endif /* SECP256K1_FIELD_H */
const mie::Vuint & r
Definition bn.cpp:28
#define SECP256K1_RESTRICT
Definition util.h:155
#define SECP256K1_FE_CONST(d7, d6, d5, d4, d3, d2, d1, d0)
Definition field_10x26.h:40
const GenericPointer< typename T::ValueType > T2 T::AllocatorType & a
Definition pointer.h:1181