112 lines
4.6 KiB
C
112 lines
4.6 KiB
C
#ifndef GE25519_H
|
|
#define GE25519_H
|
|
|
|
/*
|
|
* Arithmetic on the twisted Edwards curve -x^2 + y^2 = 1 + dx^2y^2
|
|
* with d = -(121665/121666) =
|
|
* 37095705934669439343138083508754565189542113879843219016388785533085940283555
|
|
* Base point:
|
|
* (15112221349535400772501151409588531511454012693041857206046113283949847762202,46316835694926478169428394003475163141307993866256225615783033603165251855960);
|
|
*/
|
|
|
|
#include "fe25519.h"
|
|
#include "sc25519.h"
|
|
|
|
#define ge25519 crypto_sign_ed25519_amd64_51_30k_batch_ge25519
|
|
#define ge25519_base crypto_sign_ed25519_amd64_51_30k_batch_ge25519_base
|
|
#define ge25519_unpackneg_vartime crypto_sign_ed25519_amd64_51_30k_batch_unpackneg_vartime
|
|
#define ge25519_pack crypto_sign_ed25519_amd64_51_30k_batch_pack
|
|
#define ge25519_isneutral_vartime crypto_sign_ed25519_amd64_51_30k_batch_isneutral_vartime
|
|
#define ge25519_add crypto_sign_ed25519_amd64_51_30k_batch_ge25519_add
|
|
#define ge25519_double crypto_sign_ed25519_amd64_51_30k_batch_ge25519_double
|
|
#define ge25519_double_scalarmult_vartime crypto_sign_ed25519_amd64_51_30k_batch_double_scalarmult_vartime
|
|
#define ge25519_multi_scalarmult_vartime crypto_sign_ed25519_amd64_51_30k_batch_ge25519_multi_scalarmult_vartime
|
|
#define ge25519_scalarmult_base crypto_sign_ed25519_amd64_51_30k_batch_scalarmult_base
|
|
#define ge25519_p1p1_to_p2 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_p1p1_to_p2
|
|
#define ge25519_p1p1_to_p3 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_p1p1_to_p3
|
|
#define ge25519_p1p1_to_pniels crypto_sign_ed25519_amd64_51_30k_batch_ge25519_p1p1_to_pniels
|
|
#define ge25519_add_p1p1 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_add_p1p1
|
|
#define ge25519_dbl_p1p1 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_dbl_p1p1
|
|
#define choose_t crypto_sign_ed25519_amd64_51_30k_batch_choose_t
|
|
#define choose_t_smultq crypto_sign_ed25519_amd64_51_30k_batch_choose_t_smultq
|
|
#define ge25519_nielsadd2 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_nielsadd2
|
|
#define ge25519_nielsadd_p1p1 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_nielsadd_p1p1
|
|
#define ge25519_pnielsadd_p1p1 crypto_sign_ed25519_amd64_51_30k_batch_ge25519_pnielsadd_p1p1
|
|
|
|
#define ge25519_p3 ge25519
|
|
|
|
typedef struct
|
|
{
|
|
fe25519 x;
|
|
fe25519 y;
|
|
fe25519 z;
|
|
fe25519 t;
|
|
} ge25519;
|
|
|
|
typedef struct
|
|
{
|
|
fe25519 x;
|
|
fe25519 z;
|
|
fe25519 y;
|
|
fe25519 t;
|
|
} ge25519_p1p1;
|
|
|
|
typedef struct
|
|
{
|
|
fe25519 x;
|
|
fe25519 y;
|
|
fe25519 z;
|
|
} ge25519_p2;
|
|
|
|
typedef struct
|
|
{
|
|
fe25519 ysubx;
|
|
fe25519 xaddy;
|
|
fe25519 t2d;
|
|
} ge25519_niels;
|
|
|
|
typedef struct
|
|
{
|
|
fe25519 ysubx;
|
|
fe25519 xaddy;
|
|
fe25519 z;
|
|
fe25519 t2d;
|
|
} ge25519_pniels;
|
|
|
|
typedef unsigned char bytes32[32];
|
|
|
|
extern void ge25519_p1p1_to_p2(ge25519_p2 *r, const ge25519_p1p1 *p);
|
|
extern void ge25519_p1p1_to_p3(ge25519_p3 *r, const ge25519_p1p1 *p);
|
|
extern void ge25519_p1p1_to_pniels(ge25519_pniels *r, const ge25519_p1p1 *p);
|
|
extern void ge25519_add_p1p1(ge25519_p1p1 *r, const ge25519_p3 *p, const ge25519_p3 *q);
|
|
extern void ge25519_dbl_p1p1(ge25519_p1p1 *r, const ge25519_p2 *p);
|
|
extern void choose_t(ge25519_niels *t, unsigned long long pos, signed long long b, const ge25519_niels *base_multiples);
|
|
extern void choose_t_smultq(ge25519_pniels *t, signed long long b, const ge25519_pniels *pre);
|
|
extern void ge25519_nielsadd2(ge25519_p3 *r, const ge25519_niels *q);
|
|
extern void ge25519_nielsadd_p1p1(ge25519_p1p1 *r, const ge25519_p3 *p, const ge25519_niels *q);
|
|
extern void ge25519_pnielsadd_p1p1(ge25519_p1p1 *r, const ge25519_p3 *p, const ge25519_pniels *q);
|
|
|
|
extern const ge25519 ge25519_base;
|
|
|
|
extern int ge25519_unpackneg_vartime(ge25519 *r, const unsigned char p[32]);
|
|
|
|
extern void ge25519_pack(unsigned char r[32], const ge25519 *p);
|
|
|
|
extern void ge25519_batchpack_destructive_1(bytes32 out[], ge25519_p3 in[], fe25519 *inz[], fe25519 tmp[], size_t num);
|
|
extern void ge25519_batchpack_destructive_finish(bytes32 out, ge25519_p3 *unf);
|
|
|
|
extern int ge25519_isneutral_vartime(const ge25519 *p);
|
|
|
|
extern void ge25519_add(ge25519 *r, const ge25519 *p, const ge25519 *q);
|
|
|
|
extern void ge25519_double(ge25519 *r, const ge25519 *p);
|
|
|
|
/* computes [s1]p1 + [s2]ge25519_base */
|
|
extern void ge25519_double_scalarmult_vartime(ge25519 *r, const ge25519 *p1, const sc25519 *s1, const sc25519 *s2);
|
|
|
|
extern void ge25519_multi_scalarmult_vartime(ge25519 *r, ge25519 *p, sc25519 *s, const unsigned long long npoints);
|
|
|
|
extern void ge25519_scalarmult_base(ge25519 *r, const sc25519 *s);
|
|
|
|
#endif
|