Add assembly support for 32-bit iOS.

[oweals/openssl.git] / crypto / ec / ecp_nistp521.c

diff --git a/crypto/ec/ecp_nistp521.c b/crypto/ec/ecp_nistp521.c
index 7ceb1bcbfa40a2d1536fdb5aa5e516c91bfd53c9..2e4a651c72a0360a652f04d054195e54a8364aa3 100644 (file)
--- a/crypto/ec/ecp_nistp521.c
+++ b/crypto/ec/ecp_nistp521.c
@@ -430,19 +430,19 @@ static void felem_square(largefelem out, const felem in)
     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.
@@ -455,21 +455,21 @@ static void felem_square(largefelem out, const felem in)
 
     /* 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];
@@ -499,87 +499,101 @@ static void felem_mul(largefelem out, const felem in1, const felem in2)
 
     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];
 }
@@ -1335,9 +1349,10 @@ static void point_add(felem x3, felem y3, felem z3,
  * 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},
@@ -1743,8 +1758,8 @@ int ec_GFp_nistp521_point_get_affine_coordinates(const EC_GROUP *group,
               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);
@@ -1928,7 +1943,7 @@ int ec_GFp_nistp521_points_mul(const EC_GROUP *group, EC_POINT *r,
                      * 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;
                     }
@@ -1937,9 +1952,9 @@ int ec_GFp_nistp521_points_mul(const EC_GROUP *group, EC_POINT *r,
                     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));
@@ -1974,7 +1989,7 @@ int ec_GFp_nistp521_points_mul(const EC_GROUP *group, EC_POINT *r,
              * 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;
             }
@@ -2058,9 +2073,9 @@ int ec_GFp_nistp521_precompute_mult(EC_GROUP *group, BN_CTX *ctx)
         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) {