diff options
| author | Niels Möller <nisse@lysator.liu.se> | 2019-11-21 19:43:57 +0100 |
|---|---|---|
| committer | Niels Möller <nisse@lysator.liu.se> | 2019-11-21 19:43:57 +0100 |
| commit | 889a582f3ee1b03e98f47e8bb353659af0933822 (patch) | |
| tree | c74554dc6d15e89a8cc30853acf4319b9256c8c6 /ecc-internal.h | |
| parent | 85fd4910eefca34abee053d3014a819b0e97301b (diff) | |
| parent | 5fffda51dc1b8c4a09e81bce6b262870ee27a967 (diff) | |
| download | nettle-889a582f3ee1b03e98f47e8bb353659af0933822.tar.gz | |
Merge branch 'curve448' into master
Diffstat (limited to 'ecc-internal.h')
| -rw-r--r-- | ecc-internal.h | 21 |
1 files changed, 12 insertions, 9 deletions
diff --git a/ecc-internal.h b/ecc-internal.h index 7d961f11..18c1bf7d 100644 --- a/ecc-internal.h +++ b/ecc-internal.h @@ -118,6 +118,10 @@ typedef void ecc_add_func (const struct ecc_curve *ecc, const mp_limb_t *p, const mp_limb_t *q, mp_limb_t *scratch); +typedef void ecc_dup_func (const struct ecc_curve *ecc, + mp_limb_t *r, const mp_limb_t *p, + mp_limb_t *scratch); + typedef void ecc_mul_g_func (const struct ecc_curve *ecc, mp_limb_t *r, const mp_limb_t *np, mp_limb_t *scratch); @@ -174,12 +178,16 @@ struct ecc_curve unsigned short pippenger_k; unsigned short pippenger_c; + unsigned short add_hh_itch; unsigned short add_hhh_itch; + unsigned short dup_itch; unsigned short mul_itch; unsigned short mul_g_itch; unsigned short h_to_a_itch; + ecc_add_func *add_hh; ecc_add_func *add_hhh; + ecc_dup_func *dup; ecc_mul_func *mul; ecc_mul_g_func *mul_g; ecc_h_to_a_func *h_to_a; @@ -189,9 +197,6 @@ struct ecc_curve /* Generator, x coordinate followed by y (affine coordinates). Currently used only by the test suite. */ const mp_limb_t *g; - /* If non-NULL, the constant needed for transformation to the - equivalent Edwards curve. */ - const mp_limb_t *edwards_root; /* For redc, same as B mod p, otherwise 1. */ const mp_limb_t *unit; @@ -281,18 +286,16 @@ ecc_a_to_j (const struct ecc_curve *ecc, /* Converts a point P in jacobian coordinates into a point R in affine coordinates. If op == 1, produce x coordinate only. If op == 2, - produce the x coordinate only, and also reduce it modulo q. FIXME: - For the public interface, have separate functions for the three - cases, and use this flag argument only for the internal ecc->h_to_a - function. */ + produce the x coordinate only, and also reduce it modulo q. */ void ecc_j_to_a (const struct ecc_curve *ecc, int op, mp_limb_t *r, const mp_limb_t *p, mp_limb_t *scratch); -/* Converts a point P on an Edwards curve to affine coordinates on - the corresponding Montgomery curve. */ +/* Converts a point P in homogeneous coordinates on an Edwards curve + to affine coordinates. Meaning of op is the same as for + ecc_j_to_a. */ void ecc_eh_to_a (const struct ecc_curve *ecc, int op, |