1/* $OpenBSD: fe25519.h,v 1.3 2013/12/09 11:03:45 markus Exp $ */
2
3/*
4 * Public Domain, Authors: Daniel J. Bernstein, Niels Duif, Tanja Lange,
5 * Peter Schwabe, Bo-Yin Yang.
6 * Copied from supercop-20130419/crypto_sign/ed25519/ref/fe25519.h
7 */
8
9#ifndef FE25519_H
10#define FE25519_H
11
12#define fe25519              crypto_sign_ed25519_ref_fe25519
13#define fe25519_freeze       crypto_sign_ed25519_ref_fe25519_freeze
14#define fe25519_unpack       crypto_sign_ed25519_ref_fe25519_unpack
15#define fe25519_pack         crypto_sign_ed25519_ref_fe25519_pack
16#define fe25519_iszero       crypto_sign_ed25519_ref_fe25519_iszero
17#define fe25519_iseq_vartime crypto_sign_ed25519_ref_fe25519_iseq_vartime
18#define fe25519_cmov         crypto_sign_ed25519_ref_fe25519_cmov
19#define fe25519_setone       crypto_sign_ed25519_ref_fe25519_setone
20#define fe25519_setzero      crypto_sign_ed25519_ref_fe25519_setzero
21#define fe25519_neg          crypto_sign_ed25519_ref_fe25519_neg
22#define fe25519_getparity    crypto_sign_ed25519_ref_fe25519_getparity
23#define fe25519_add          crypto_sign_ed25519_ref_fe25519_add
24#define fe25519_sub          crypto_sign_ed25519_ref_fe25519_sub
25#define fe25519_mul          crypto_sign_ed25519_ref_fe25519_mul
26#define fe25519_square       crypto_sign_ed25519_ref_fe25519_square
27#define fe25519_invert       crypto_sign_ed25519_ref_fe25519_invert
28#define fe25519_pow2523      crypto_sign_ed25519_ref_fe25519_pow2523
29
30typedef struct
31{
32	uint32_t v[32];
33}
34fe25519;
35
36void fe25519_freeze(fe25519 *r);
37
38void fe25519_unpack(fe25519 *r, const unsigned char x[32]);
39
40void fe25519_pack(unsigned char r[32], const fe25519 *x);
41
42int fe25519_iszero(const fe25519 *x);
43
44int fe25519_iseq_vartime(const fe25519 *x, const fe25519 *y);
45
46void fe25519_cmov(fe25519 *r, const fe25519 *x, unsigned char b);
47
48void fe25519_setone(fe25519 *r);
49
50void fe25519_setzero(fe25519 *r);
51
52void fe25519_neg(fe25519 *r, const fe25519 *x);
53
54unsigned char fe25519_getparity(const fe25519 *x);
55
56void fe25519_add(fe25519 *r, const fe25519 *x, const fe25519 *y);
57
58void fe25519_sub(fe25519 *r, const fe25519 *x, const fe25519 *y);
59
60void fe25519_mul(fe25519 *r, const fe25519 *x, const fe25519 *y);
61
62void fe25519_square(fe25519 *r, const fe25519 *x);
63
64void fe25519_invert(fe25519 *r, const fe25519 *x);
65
66void fe25519_pow2523(fe25519 *r, const fe25519 *x);
67
68#endif
69