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| author | Niels Möller <nisse@lysator.liu.se> | 2020-10-28 21:48:10 +0100 |
|---|---|---|
| committer | Niels Möller <nisse@lysator.liu.se> | 2020-10-28 21:48:10 +0100 |
| commit | 2f3c633e94f09cd03a94ffd8f7ddac4020da81e7 (patch) | |
| tree | dedc83ac498c670e493e7df26f7b2fae90dc6c2b /ecc-secp256r1.c | |
| parent | 1cbc9e094eae458ff83b0a59c33a929520c51a63 (diff) | |
| download | nettle-2f3c633e94f09cd03a94ffd8f7ddac4020da81e7.tar.gz | |
Use GMP functions mpn_cnd_add_n, mpn_cnd_sub_n and mpn_cnd_swap.use-mpn_cnd-functions
Diffstat (limited to 'ecc-secp256r1.c')
| -rw-r--r-- | ecc-secp256r1.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/ecc-secp256r1.c b/ecc-secp256r1.c index adab8d90..4b153327 100644 --- a/ecc-secp256r1.c +++ b/ecc-secp256r1.c @@ -127,7 +127,7 @@ ecc_secp256r1_modp (const struct ecc_modulo *p, mp_limb_t *rp) shifts rather than mul. */ t = mpn_submul_1 (rp + n - 4, p->m, 2, q1); - t += cnd_sub_n (q2, rp + n - 3, p->m, 1); + t += mpn_cnd_sub_n (q2, rp + n - 3, rp + n - 3, p->m, 1); t += (-q2) & 0xffffffff; u0 = rp[n-2]; @@ -136,7 +136,7 @@ ecc_secp256r1_modp (const struct ecc_modulo *p, mp_limb_t *rp) t = (u1 < cy); u1 -= cy; - cy = cnd_add_n (t, rp + n - 4, p->m, 2); + cy = mpn_cnd_add_n (t, rp + n - 4, rp + n - 4, p->m, 2); u0 += cy; u1 += (u0 < cy); u1 -= (-t) & 0xffffffff; @@ -210,7 +210,7 @@ ecc_secp256r1_modq (const struct ecc_modulo *q, mp_limb_t *rp) assert (q2 < 2); - c0 = cnd_sub_n (q2, rp + n - 3, q->m, 1); + c0 = mpn_cnd_sub_n (q2, rp + n - 3, rp + n - 3, q->m, 1); c0 += (-q2) & q->m[1]; t = mpn_submul_1 (rp + n - 4, q->m, 2, q1); c0 += t; @@ -227,7 +227,7 @@ ecc_secp256r1_modq (const struct ecc_modulo *q, mp_limb_t *rp) u1 += t; u2 += (t<<32) + (u1 < t); - t = cnd_add_n (t, rp + n - 4, q->m, 2); + t = mpn_cnd_add_n (t, rp + n - 4, rp + n - 4, q->m, 2); u1 += t; u2 += (u1 < t); } |