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| author | Niels Möller <nisse@lysator.liu.se> | 2020-10-13 21:49:34 +0200 |
|---|---|---|
| committer | Niels Möller <nisse@lysator.liu.se> | 2020-10-13 21:49:34 +0200 |
| commit | 04b25045c8aeed37b875861378302aa086f287a8 (patch) | |
| tree | 918c8b7e7fc316ef3d8629849576e58b26f896a2 /ecc-internal.h | |
| parent | 04117efd723675a4302d75c8bc1eb8cdad48c63b (diff) | |
| parent | 87099691e752f25e3c044ed59ae47224599291bf (diff) | |
| download | nettle-04b25045c8aeed37b875861378302aa086f287a8.tar.gz | |
Merge branch 'invert-with-redc' into master-updates
Diffstat (limited to 'ecc-internal.h')
| -rw-r--r-- | ecc-internal.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/ecc-internal.h b/ecc-internal.h index 9e24e0ce..8ef4276b 100644 --- a/ecc-internal.h +++ b/ecc-internal.h @@ -52,6 +52,7 @@ #define ecc_mod_random _nettle_ecc_mod_random #define ecc_mod _nettle_ecc_mod #define ecc_mod_inv _nettle_ecc_mod_inv +#define ecc_mod_inv_redc _nettle_ecc_mod_inv_redc #define ecc_hash _nettle_ecc_hash #define gost_hash _nettle_gost_hash #define ecc_a_to_j _nettle_ecc_a_to_j @@ -168,6 +169,8 @@ struct ecc_modulo ecc_mod_func *mod; ecc_mod_func *reduce; + /* For moduli where we use redc, the invert and sqrt functions work + with inputs and outputs in redc form. */ ecc_mod_inv_func *invert; ecc_mod_sqrt_func *sqrt; }; @@ -228,6 +231,7 @@ ecc_mod_func ecc_pp1_redc; ecc_mod_func ecc_pm1_redc; ecc_mod_inv_func ecc_mod_inv; +ecc_mod_inv_func ecc_mod_inv_redc; void ecc_mod_add (const struct ecc_modulo *m, mp_limb_t *rp, @@ -412,7 +416,8 @@ curve448_eh_to_x (mp_limb_t *xp, const mp_limb_t *p, /* Current scratch needs: */ #define ECC_MOD_INV_ITCH(size) (2*(size)) -#define ECC_J_TO_A_ITCH(size) (5*(size)) +/* Only valid when using the general ecc_mod_inv/ecc_mod_inv_redc ! */ +#define ECC_J_TO_A_ITCH(size) (4*(size)) #define ECC_EH_TO_A_ITCH(size, inv) (2*(size)+(inv)) #define ECC_DUP_JJ_ITCH(size) (5*(size)) #define ECC_DUP_EH_ITCH(size) (5*(size)) |