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author | Niels Möller <nisse@lysator.liu.se> | 2019-12-28 10:53:15 +0100 |
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committer | Niels Möller <nisse@lysator.liu.se> | 2019-12-28 10:58:45 +0100 |
commit | d1d7d737457eaba5b51a98457cac06982638a8fd (patch) | |
tree | 009b47623f0b3ccfb744e3a79e5f6793be1fe1a6 | |
parent | 43be59b25a5134363d2040fdc7b31ffbe5a8d308 (diff) | |
download | nettle-d1d7d737457eaba5b51a98457cac06982638a8fd.tar.gz |
Whitespace fixes.
-rw-r--r-- | ecc-256.c | 34 |
1 files changed, 17 insertions, 17 deletions
@@ -55,7 +55,7 @@ void ecc_256_redc (const struct ecc_modulo *p, mp_limb_t *rp); #else /* !HAVE_NATIVE_ecc_256_redc */ -# if ECC_REDC_SIZE > 0 +# if ECC_REDC_SIZE > 0 # define ecc_256_redc ecc_pp1_redc # elif ECC_REDC_SIZE == 0 # define ecc_256_redc NULL @@ -115,13 +115,13 @@ ecc_256_modp (const struct ecc_modulo *p, mp_limb_t *rp) /* n-1 n-2 n-3 n-4 - +---+---+---+---+ - | u1| u0| u low | - +---+---+---+---+ - - | q1(2^96-1)| - +-------+---+ - |q2(2^.)| - +-------+ + +---+---+---+---+ + | u1| u0| u low | + +---+---+---+---+ + - | q1(2^96-1)| + +-------+---+ + |q2(2^.)| + +-------+ We multiply by two low limbs of p, 2^96 - 1, so we could use shifts rather than mul. @@ -161,7 +161,7 @@ ecc_256_modq (const struct ecc_modulo *q, mp_limb_t *rp) mp_limb_t q2, q1, q0, t, c1, c0; u0 = rp[n-2]; - + /* <q2, q1, q0> = v * u2 + <u2,u1>, same method as above. +---+---+ @@ -183,7 +183,7 @@ ecc_256_modq (const struct ecc_modulo *q, mp_limb_t *rp) q2 = q1 < t; /* Compute candidate remainder, <u1, u0> - <q2, q1> * (2^128 - 2^96 + 2^64 - 1) - <u1, u0> + 2^64 q2 + (2^96 - 2^64 + 1) q1 (mod 2^128) + <u1, u0> + 2^64 q2 + (2^96 - 2^64 + 1) q1 (mod 2^128) +---+---+ | u1| u0| @@ -194,9 +194,9 @@ ecc_256_modq (const struct ecc_modulo *q, mp_limb_t *rp) +-+-+-+ | q1| --+-+-+-+---+ - | u2| u1| + | u2| u1| +---+---+ - */ + */ u2 = u1 + q2 - q1; u1 = u0 + q1; u2 += (u1 < q1); @@ -215,7 +215,7 @@ ecc_256_modq (const struct ecc_modulo *q, mp_limb_t *rp) t = mpn_submul_1 (rp + n - 4, q->m, 2, q1); c0 += t; c1 = c0 < t; - + /* Construct underflow condition. */ c1 += (u1 < c0); t = - (mp_limb_t) (u2 < c1); @@ -234,7 +234,7 @@ ecc_256_modq (const struct ecc_modulo *q, mp_limb_t *rp) rp[2] = u1; rp[3] = u2; } - + #else #error Unsupported parameters #endif @@ -243,7 +243,7 @@ const struct ecc_curve _nettle_secp_256r1 = { { 256, - ECC_LIMB_SIZE, + ECC_LIMB_SIZE, ECC_BMODP_SIZE, ECC_REDC_SIZE, ECC_MOD_INV_ITCH (ECC_LIMB_SIZE), @@ -253,8 +253,8 @@ const struct ecc_curve _nettle_secp_256r1 = ecc_Bmodp, ecc_Bmodp_shifted, ecc_redc_ppm1, - ecc_pp1h, + ecc_256_modp, USE_REDC ? ecc_256_redc : ecc_256_modp, ecc_mod_inv, @@ -262,7 +262,7 @@ const struct ecc_curve _nettle_secp_256r1 = }, { 256, - ECC_LIMB_SIZE, + ECC_LIMB_SIZE, ECC_BMODQ_SIZE, 0, ECC_MOD_INV_ITCH (ECC_LIMB_SIZE), |