diff options
| -rw-r--r-- | ChangeLog | 8 | ||||
| -rw-r--r-- | ecc-internal.h | 2 | ||||
| -rw-r--r-- | ecc-mul-a-eh.c | 6 |
3 files changed, 12 insertions, 4 deletions
@@ -1,3 +1,11 @@ +2019-12-19 Niels Möller <nisse@lysator.liu.se> + + * ecc-mul-a-eh.c (ecc_mul_a_eh) [ECC_MUL_A_EH_WBITS == 0]: Use + add_hh rather than add_hhh. + (table_init) [[ECC_MUL_A_EH_WBITS > 0]: Likewise. + * ecc-internal.h (ECC_MUL_A_EH_ITCH) [ECC_MUL_A_EH_WBITS == 0]: + Reduced from 13*n to 12*n. + 2019-12-18 Niels Möller <nisse@lysator.liu.se> Rename add and dup functions for Edwards curves. diff --git a/ecc-internal.h b/ecc-internal.h index 000b812e..99ae3d3d 100644 --- a/ecc-internal.h +++ b/ecc-internal.h @@ -445,7 +445,7 @@ curve448_eh_to_x (mp_limb_t *xp, const mp_limb_t *p, (((3 << ECC_MUL_A_WBITS) + 11) * (size)) #endif #if ECC_MUL_A_EH_WBITS == 0 -#define ECC_MUL_A_EH_ITCH(size) (13*(size)) +#define ECC_MUL_A_EH_ITCH(size) (12*(size)) #else #define ECC_MUL_A_EH_ITCH(size) \ (((3 << ECC_MUL_A_EH_WBITS) + 10) * (size)) diff --git a/ecc-mul-a-eh.c b/ecc-mul-a-eh.c index e9b22cd4..d7765ebf 100644 --- a/ecc-mul-a-eh.c +++ b/ecc-mul-a-eh.c @@ -39,7 +39,7 @@ #include "ecc-internal.h" /* Binary algorithm needs 6*ecc->p.size + scratch for ecc_add_ehh, - total 13 ecc->p.size + total 12 ecc->p.size Window algorithm needs (3<<w) * ecc->p.size for the table, 3*ecc->p.size for a temporary point, and scratch for @@ -76,7 +76,7 @@ ecc_mul_a_eh (const struct ecc_curve *ecc, int digit; ecc->dup (ecc, r, r, scratch_out); - ecc->add_hhh (ecc, tp, r, pe, scratch_out); + ecc->add_hh (ecc, tp, r, pe, scratch_out); digit = (w & bit) > 0; /* If we had a one-bit, use the sum. */ @@ -108,7 +108,7 @@ table_init (const struct ecc_curve *ecc, for (j = 2; j < size; j += 2) { ecc->dup (ecc, TABLE(j), TABLE(j/2), scratch); - ecc->add_hhh (ecc, TABLE(j+1), TABLE(j), TABLE(1), scratch); + ecc->add_hh (ecc, TABLE(j+1), TABLE(j), TABLE(1), scratch); } } |