out[2] = ((uint128_t) in[0]) * inx2[2] + ((uint128_t) in[1]) * in[1];
out[3] = ((uint128_t) in[0]) * inx2[3] + ((uint128_t) in[1]) * inx2[2];
out[4] = ((uint128_t) in[0]) * inx2[4] +
- ((uint128_t) in[1]) * inx2[3] + ((uint128_t) in[2]) * in[2];
+ ((uint128_t) in[1]) * inx2[3] + ((uint128_t) in[2]) * in[2];
out[5] = ((uint128_t) in[0]) * inx2[5] +
- ((uint128_t) in[1]) * inx2[4] + ((uint128_t) in[2]) * inx2[3];
+ ((uint128_t) in[1]) * inx2[4] + ((uint128_t) in[2]) * inx2[3];
out[6] = ((uint128_t) in[0]) * inx2[6] +
- ((uint128_t) in[1]) * inx2[5] +
- ((uint128_t) in[2]) * inx2[4] + ((uint128_t) in[3]) * in[3];
+ ((uint128_t) in[1]) * inx2[5] +
+ ((uint128_t) in[2]) * inx2[4] + ((uint128_t) in[3]) * in[3];
out[7] = ((uint128_t) in[0]) * inx2[7] +
- ((uint128_t) in[1]) * inx2[6] +
- ((uint128_t) in[2]) * inx2[5] + ((uint128_t) in[3]) * inx2[4];
+ ((uint128_t) in[1]) * inx2[6] +
+ ((uint128_t) in[2]) * inx2[5] + ((uint128_t) in[3]) * inx2[4];
out[8] = ((uint128_t) in[0]) * inx2[8] +
- ((uint128_t) in[1]) * inx2[7] +
- ((uint128_t) in[2]) * inx2[6] +
- ((uint128_t) in[3]) * inx2[5] + ((uint128_t) in[4]) * in[4];
+ ((uint128_t) in[1]) * inx2[7] +
+ ((uint128_t) in[2]) * inx2[6] +
+ ((uint128_t) in[3]) * inx2[5] + ((uint128_t) in[4]) * in[4];
/*
* The remaining limbs fall above 2^521, with the first falling at 2^522.
/* 9 */
out[0] += ((uint128_t) in[1]) * inx4[8] +
- ((uint128_t) in[2]) * inx4[7] +
- ((uint128_t) in[3]) * inx4[6] + ((uint128_t) in[4]) * inx4[5];
+ ((uint128_t) in[2]) * inx4[7] +
+ ((uint128_t) in[3]) * inx4[6] + ((uint128_t) in[4]) * inx4[5];
/* 10 */
out[1] += ((uint128_t) in[2]) * inx4[8] +
- ((uint128_t) in[3]) * inx4[7] +
- ((uint128_t) in[4]) * inx4[6] + ((uint128_t) in[5]) * inx2[5];
+ ((uint128_t) in[3]) * inx4[7] +
+ ((uint128_t) in[4]) * inx4[6] + ((uint128_t) in[5]) * inx2[5];
/* 11 */
out[2] += ((uint128_t) in[3]) * inx4[8] +
- ((uint128_t) in[4]) * inx4[7] + ((uint128_t) in[5]) * inx4[6];
+ ((uint128_t) in[4]) * inx4[7] + ((uint128_t) in[5]) * inx4[6];
/* 12 */
out[3] += ((uint128_t) in[4]) * inx4[8] +
- ((uint128_t) in[5]) * inx4[7] + ((uint128_t) in[6]) * inx2[6];
+ ((uint128_t) in[5]) * inx4[7] + ((uint128_t) in[6]) * inx2[6];
/* 13 */
out[4] += ((uint128_t) in[5]) * inx4[8] + ((uint128_t) in[6]) * inx4[7];
out[0] = ((uint128_t) in1[0]) * in2[0];
- out[1] = ((uint128_t) in1[0]) * in2[1] + ((uint128_t) in1[1]) * in2[0];
+ out[1] = ((uint128_t) in1[0]) * in2[1] +
+ ((uint128_t) in1[1]) * in2[0];
out[2] = ((uint128_t) in1[0]) * in2[2] +
- ((uint128_t) in1[1]) * in2[1] + ((uint128_t) in1[2]) * in2[0];
+ ((uint128_t) in1[1]) * in2[1] +
+ ((uint128_t) in1[2]) * in2[0];
out[3] = ((uint128_t) in1[0]) * in2[3] +
- ((uint128_t) in1[1]) * in2[2] +
- ((uint128_t) in1[2]) * in2[1] + ((uint128_t) in1[3]) * in2[0];
+ ((uint128_t) in1[1]) * in2[2] +
+ ((uint128_t) in1[2]) * in2[1] +
+ ((uint128_t) in1[3]) * in2[0];
out[4] = ((uint128_t) in1[0]) * in2[4] +
- ((uint128_t) in1[1]) * in2[3] +
- ((uint128_t) in1[2]) * in2[2] +
- ((uint128_t) in1[3]) * in2[1] + ((uint128_t) in1[4]) * in2[0];
+ ((uint128_t) in1[1]) * in2[3] +
+ ((uint128_t) in1[2]) * in2[2] +
+ ((uint128_t) in1[3]) * in2[1] +
+ ((uint128_t) in1[4]) * in2[0];
out[5] = ((uint128_t) in1[0]) * in2[5] +
- ((uint128_t) in1[1]) * in2[4] +
- ((uint128_t) in1[2]) * in2[3] +
- ((uint128_t) in1[3]) * in2[2] +
- ((uint128_t) in1[4]) * in2[1] + ((uint128_t) in1[5]) * in2[0];
+ ((uint128_t) in1[1]) * in2[4] +
+ ((uint128_t) in1[2]) * in2[3] +
+ ((uint128_t) in1[3]) * in2[2] +
+ ((uint128_t) in1[4]) * in2[1] +
+ ((uint128_t) in1[5]) * in2[0];
out[6] = ((uint128_t) in1[0]) * in2[6] +
- ((uint128_t) in1[1]) * in2[5] +
- ((uint128_t) in1[2]) * in2[4] +
- ((uint128_t) in1[3]) * in2[3] +
- ((uint128_t) in1[4]) * in2[2] +
- ((uint128_t) in1[5]) * in2[1] + ((uint128_t) in1[6]) * in2[0];
+ ((uint128_t) in1[1]) * in2[5] +
+ ((uint128_t) in1[2]) * in2[4] +
+ ((uint128_t) in1[3]) * in2[3] +
+ ((uint128_t) in1[4]) * in2[2] +
+ ((uint128_t) in1[5]) * in2[1] +
+ ((uint128_t) in1[6]) * in2[0];
out[7] = ((uint128_t) in1[0]) * in2[7] +
- ((uint128_t) in1[1]) * in2[6] +
- ((uint128_t) in1[2]) * in2[5] +
- ((uint128_t) in1[3]) * in2[4] +
- ((uint128_t) in1[4]) * in2[3] +
- ((uint128_t) in1[5]) * in2[2] +
- ((uint128_t) in1[6]) * in2[1] + ((uint128_t) in1[7]) * in2[0];
+ ((uint128_t) in1[1]) * in2[6] +
+ ((uint128_t) in1[2]) * in2[5] +
+ ((uint128_t) in1[3]) * in2[4] +
+ ((uint128_t) in1[4]) * in2[3] +
+ ((uint128_t) in1[5]) * in2[2] +
+ ((uint128_t) in1[6]) * in2[1] +
+ ((uint128_t) in1[7]) * in2[0];
out[8] = ((uint128_t) in1[0]) * in2[8] +
- ((uint128_t) in1[1]) * in2[7] +
- ((uint128_t) in1[2]) * in2[6] +
- ((uint128_t) in1[3]) * in2[5] +
- ((uint128_t) in1[4]) * in2[4] +
- ((uint128_t) in1[5]) * in2[3] +
- ((uint128_t) in1[6]) * in2[2] +
- ((uint128_t) in1[7]) * in2[1] + ((uint128_t) in1[8]) * in2[0];
+ ((uint128_t) in1[1]) * in2[7] +
+ ((uint128_t) in1[2]) * in2[6] +
+ ((uint128_t) in1[3]) * in2[5] +
+ ((uint128_t) in1[4]) * in2[4] +
+ ((uint128_t) in1[5]) * in2[3] +
+ ((uint128_t) in1[6]) * in2[2] +
+ ((uint128_t) in1[7]) * in2[1] +
+ ((uint128_t) in1[8]) * in2[0];
/* See comment in felem_square about the use of in2x2 here */
out[0] += ((uint128_t) in1[1]) * in2x2[8] +
- ((uint128_t) in1[2]) * in2x2[7] +
- ((uint128_t) in1[3]) * in2x2[6] +
- ((uint128_t) in1[4]) * in2x2[5] +
- ((uint128_t) in1[5]) * in2x2[4] +
- ((uint128_t) in1[6]) * in2x2[3] +
- ((uint128_t) in1[7]) * in2x2[2] + ((uint128_t) in1[8]) * in2x2[1];
+ ((uint128_t) in1[2]) * in2x2[7] +
+ ((uint128_t) in1[3]) * in2x2[6] +
+ ((uint128_t) in1[4]) * in2x2[5] +
+ ((uint128_t) in1[5]) * in2x2[4] +
+ ((uint128_t) in1[6]) * in2x2[3] +
+ ((uint128_t) in1[7]) * in2x2[2] +
+ ((uint128_t) in1[8]) * in2x2[1];
out[1] += ((uint128_t) in1[2]) * in2x2[8] +
- ((uint128_t) in1[3]) * in2x2[7] +
- ((uint128_t) in1[4]) * in2x2[6] +
- ((uint128_t) in1[5]) * in2x2[5] +
- ((uint128_t) in1[6]) * in2x2[4] +
- ((uint128_t) in1[7]) * in2x2[3] + ((uint128_t) in1[8]) * in2x2[2];
+ ((uint128_t) in1[3]) * in2x2[7] +
+ ((uint128_t) in1[4]) * in2x2[6] +
+ ((uint128_t) in1[5]) * in2x2[5] +
+ ((uint128_t) in1[6]) * in2x2[4] +
+ ((uint128_t) in1[7]) * in2x2[3] +
+ ((uint128_t) in1[8]) * in2x2[2];
out[2] += ((uint128_t) in1[3]) * in2x2[8] +
- ((uint128_t) in1[4]) * in2x2[7] +
- ((uint128_t) in1[5]) * in2x2[6] +
- ((uint128_t) in1[6]) * in2x2[5] +
- ((uint128_t) in1[7]) * in2x2[4] + ((uint128_t) in1[8]) * in2x2[3];
+ ((uint128_t) in1[4]) * in2x2[7] +
+ ((uint128_t) in1[5]) * in2x2[6] +
+ ((uint128_t) in1[6]) * in2x2[5] +
+ ((uint128_t) in1[7]) * in2x2[4] +
+ ((uint128_t) in1[8]) * in2x2[3];
out[3] += ((uint128_t) in1[4]) * in2x2[8] +
- ((uint128_t) in1[5]) * in2x2[7] +
- ((uint128_t) in1[6]) * in2x2[6] +
- ((uint128_t) in1[7]) * in2x2[5] + ((uint128_t) in1[8]) * in2x2[4];
+ ((uint128_t) in1[5]) * in2x2[7] +
+ ((uint128_t) in1[6]) * in2x2[6] +
+ ((uint128_t) in1[7]) * in2x2[5] +
+ ((uint128_t) in1[8]) * in2x2[4];
out[4] += ((uint128_t) in1[5]) * in2x2[8] +
- ((uint128_t) in1[6]) * in2x2[7] +
- ((uint128_t) in1[7]) * in2x2[6] + ((uint128_t) in1[8]) * in2x2[5];
+ ((uint128_t) in1[6]) * in2x2[7] +
+ ((uint128_t) in1[7]) * in2x2[6] +
+ ((uint128_t) in1[8]) * in2x2[5];
out[5] += ((uint128_t) in1[6]) * in2x2[8] +
- ((uint128_t) in1[7]) * in2x2[7] + ((uint128_t) in1[8]) * in2x2[6];
+ ((uint128_t) in1[7]) * in2x2[7] +
+ ((uint128_t) in1[8]) * in2x2[6];
out[6] += ((uint128_t) in1[7]) * in2x2[8] +
- ((uint128_t) in1[8]) * in2x2[7];
+ ((uint128_t) in1[8]) * in2x2[7];
out[7] += ((uint128_t) in1[8]) * in2x2[8];
}
* Tables for other points have table[i] = iG for i in 0 .. 16. */
/* gmul is the table of precomputed base points */
-static const felem gmul[16][3] = { {{0, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 0, 0, 0, 0, 0, 0, 0, 0},
- {0, 0, 0, 0, 0, 0, 0, 0, 0}},
+static const felem gmul[16][3] = {
+{{0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, 0, 0, 0, 0, 0, 0, 0, 0},
+ {0, 0, 0, 0, 0, 0, 0, 0, 0}},
{{0x017e7e31c2e5bd66, 0x022cf0615a90a6fe, 0x00127a2ffa8de334,
0x01dfbf9d64a3f877, 0x006b4d3dbaa14b5e, 0x014fed487e0a2bd8,
0x015b4429c6481390, 0x03a73678fb2d988e, 0x00c6858e06b70404},
EC_R_POINT_AT_INFINITY);
return 0;
}
- if ((!BN_to_felem(x_in, &point->X)) || (!BN_to_felem(y_in, &point->Y)) ||
- (!BN_to_felem(z1, &point->Z)))
+ if ((!BN_to_felem(x_in, point->X)) || (!BN_to_felem(y_in, point->Y)) ||
+ (!BN_to_felem(z1, point->Z)))
return 0;
felem_inv(z2, z1);
felem_square(tmp, z2);
* this is an unusual input, and we don't guarantee
* constant-timeness
*/
- if (!BN_nnmod(tmp_scalar, p_scalar, &group->order, ctx)) {
+ if (!BN_nnmod(tmp_scalar, p_scalar, group->order, ctx)) {
ECerr(EC_F_EC_GFP_NISTP521_POINTS_MUL, ERR_R_BN_LIB);
goto err;
}
num_bytes = BN_bn2bin(p_scalar, tmp);
flip_endian(secrets[i], tmp, num_bytes);
/* precompute multiples */
- if ((!BN_to_felem(x_out, &p->X)) ||
- (!BN_to_felem(y_out, &p->Y)) ||
- (!BN_to_felem(z_out, &p->Z)))
+ if ((!BN_to_felem(x_out, p->X)) ||
+ (!BN_to_felem(y_out, p->Y)) ||
+ (!BN_to_felem(z_out, p->Z)))
goto err;
memcpy(pre_comp[i][1][0], x_out, sizeof(felem));
memcpy(pre_comp[i][1][1], y_out, sizeof(felem));
* this is an unusual input, and we don't guarantee
* constant-timeness
*/
- if (!BN_nnmod(tmp_scalar, scalar, &group->order, ctx)) {
+ if (!BN_nnmod(tmp_scalar, scalar, group->order, ctx)) {
ECerr(EC_F_EC_GFP_NISTP521_POINTS_MUL, ERR_R_BN_LIB);
goto err;
}
err:
BN_CTX_end(ctx);
- if (generator != NULL)
- EC_POINT_free(generator);
+ EC_POINT_free(generator);
if (new_ctx != NULL)
BN_CTX_free(new_ctx);
if (secrets != NULL)
ret = 1;
goto err;
}
- if ((!BN_to_felem(pre->g_pre_comp[1][0], &group->generator->X)) ||
- (!BN_to_felem(pre->g_pre_comp[1][1], &group->generator->Y)) ||
- (!BN_to_felem(pre->g_pre_comp[1][2], &group->generator->Z)))
+ if ((!BN_to_felem(pre->g_pre_comp[1][0], group->generator->X)) ||
+ (!BN_to_felem(pre->g_pre_comp[1][1], group->generator->Y)) ||
+ (!BN_to_felem(pre->g_pre_comp[1][2], group->generator->Z)))
goto err;
/* compute 2^130*G, 2^260*G, 2^390*G */
for (i = 1; i <= 4; i <<= 1) {
pre = NULL;
err:
BN_CTX_end(ctx);
- if (generator != NULL)
- EC_POINT_free(generator);
+ EC_POINT_free(generator);
if (new_ctx != NULL)
BN_CTX_free(new_ctx);
- if (pre)
- nistp521_pre_comp_free(pre);
+ nistp521_pre_comp_free(pre);
return ret;
}