mirror of
https://github.com/trezor/trezor-firmware.git
synced 2024-12-21 13:58:08 +00:00
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
|
|
Timing safe memory compare
|
|
*/
|
|
int ed25519_verify(const unsigned char *x, const unsigned char *y, size_t len);
|
|
|
|
/*
|
|
conversions
|
|
*/
|
|
|
|
void ge25519_p1p1_to_partial(ge25519 *r, const ge25519_p1p1 *p);
|
|
|
|
void ge25519_p1p1_to_full(ge25519 *r, const ge25519_p1p1 *p);
|
|
|
|
void ge25519_full_to_pniels(ge25519_pniels *p, const ge25519 *r);
|
|
|
|
/*
|
|
adding & doubling
|
|
*/
|
|
|
|
void ge25519_double_p1p1(ge25519_p1p1 *r, const ge25519 *p);
|
|
|
|
#ifndef ED25519_NO_PRECOMP
|
|
void ge25519_nielsadd2_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519_niels *q, unsigned char signbit);
|
|
#endif
|
|
|
|
/* computes [s1]p1 + [s2]p2 */
|
|
#if USE_MONERO
|
|
void ge25519_double_scalarmult_vartime2(ge25519 *r, const ge25519 *p1, const bignum256modm s1, const ge25519 *p2, const bignum256modm s2);
|
|
#endif
|
|
|
|
void ge25519_pnielsadd_p1p1(ge25519_p1p1 *r, const ge25519 *p, const ge25519_pniels *q, unsigned char signbit);
|
|
|
|
void ge25519_double_partial(ge25519 *r, const ge25519 *p);
|
|
|
|
void ge25519_double(ge25519 *r, const ge25519 *p);
|
|
|
|
void ge25519_nielsadd2(ge25519 *r, const ge25519_niels *q);
|
|
|
|
void ge25519_pnielsadd(ge25519_pniels *r, const ge25519 *p, const ge25519_pniels *q);
|
|
|
|
|
|
/*
|
|
pack & unpack
|
|
*/
|
|
|
|
void ge25519_pack(unsigned char r[32], const ge25519 *p);
|
|
|
|
int ge25519_unpack_negative_vartime(ge25519 *r, const unsigned char p[32]);
|
|
|
|
/*
|
|
scalarmults
|
|
*/
|
|
|
|
void ge25519_set_neutral(ge25519 *r);
|
|
|
|
/* computes [s1]p1 + [s2]base */
|
|
void ge25519_double_scalarmult_vartime(ge25519 *r, const ge25519 *p1, const bignum256modm s1, const bignum256modm s2);
|
|
|
|
/* computes [s1]p1, constant time */
|
|
void ge25519_scalarmult(ge25519 *r, const ge25519 *p1, const bignum256modm s1);
|
|
|
|
void ge25519_scalarmult_base_choose_niels(ge25519_niels *t, const uint8_t table[256][96], uint32_t pos, signed char b);
|
|
|
|
/* computes [s]basepoint */
|
|
void ge25519_scalarmult_base_niels(ge25519 *r, const uint8_t basepoint_table[256][96], const bignum256modm s);
|
|
|
|
/* check if r is on curve */
|
|
int ge25519_check(const ge25519 *r);
|
|
|
|
/* a == b */
|
|
int ge25519_eq(const ge25519 *a, const ge25519 *b);
|
|
|
|
/* copies one point to another */
|
|
void ge25519_copy(ge25519 *dst, const ge25519 *src);
|
|
|
|
/* sets B point to r */
|
|
void ge25519_set_base(ge25519 *r);
|
|
|
|
/* 8*P */
|
|
void ge25519_mul8(ge25519 *r, const ge25519 *t);
|
|
|
|
/* -P */
|
|
void ge25519_neg_partial(ge25519 *r);
|
|
|
|
/* -P */
|
|
void ge25519_neg_full(ge25519 *r);
|
|
|
|
/* reduce all coords */
|
|
void ge25519_reduce(ge25519 *r, const ge25519 *t);
|
|
|
|
/* normalizes coords. (x, y, 1, x*y) */
|
|
void ge25519_norm(ge25519 *r, const ge25519 * t);
|
|
|
|
/* Simple addition */
|
|
void ge25519_add(ge25519 *r, const ge25519 *a, const ge25519 *b, unsigned char signbit);
|
|
|
|
/* point from bytes, used in H_p() */
|
|
void ge25519_fromfe_frombytes_vartime(ge25519 *r, const unsigned char *s);
|
|
|
|
/* point from bytes */
|
|
int ge25519_unpack_vartime(ge25519 *r, const unsigned char *s);
|
|
|
|
/* aG, wrapper for niels base mult. */
|
|
void ge25519_scalarmult_base_wrapper(ge25519 *r, const bignum256modm s);
|