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Remove ftmp* comments from P-256 addition code.

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These are remnants of the old code which had a bunch of ftmp variables.

Change-Id: Id14cf414cb67ff08e240970767f7a5a58e883ce4
Reviewed-on: https://boringssl-review.googlesource.com/24689
Reviewed-by: Adam Langley <agl@google.com>
This commit is contained in:
David Benjamin 2017-12-26 18:16:10 -05:00 committed by Adam Langley
parent 3ab6ad6abd
commit 9112631c1f
1 changed files with 9 additions and 9 deletions
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18
third_party/fiat/p256.c vendored
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@ -1069,10 +1069,10 @@ static void point_add(fe x3, fe y3, fe z3, const fe x1,
fe u1, s1, two_z1z2;
if (!mixed) {
// ftmp2 = z2z2 = z2**2
// z2z2 = z2**2
fe z2z2; fe_sqr(z2z2, z2);
// u1 = ftmp3 = x1*z2z2
// u1 = x1*z2z2
fe_mul(u1, x1, z2z2);
// two_z1z2 = (z1 + z2)**2 - (z1z1 + z2z2) = 2z1z2
@ -1081,24 +1081,24 @@ static void point_add(fe x3, fe y3, fe z3, const fe x1,
fe_sub(two_z1z2, two_z1z2, z1z1);
fe_sub(two_z1z2, two_z1z2, z2z2);
// s1 = ftmp2 = y1 * z2**3
// s1 = y1 * z2**3
fe_mul(s1, z2, z2z2);
fe_mul(s1, s1, y1);
} else {
// We'll assume z2 = 1 (special case z2 = 0 is handled later).
// u1 = ftmp3 = x1*z2z2
// u1 = x1*z2z2
fe_copy(u1, x1);
// two_z1z2 = 2z1z2
fe_add(two_z1z2, z1, z1);
// s1 = ftmp2 = y1 * z2**3
// s1 = y1 * z2**3
fe_copy(s1, y1);
}
// u2 = x2*z1z1
fe u2; fe_mul(u2, x2, z1z1);
// h = ftmp4 = u2 - u1
// h = u2 - u1
fe h; fe_sub(h, u2, u1);
limb_t xneq = fe_nz(h);
@ -1109,7 +1109,7 @@ static void point_add(fe x3, fe y3, fe z3, const fe x1,
// z1z1z1 = z1 * z1z1
fe z1z1z1; fe_mul(z1z1z1, z1, z1z1);
// s2 = tmp = y2 * z1**3
// s2 = y2 * z1**3
fe s2; fe_mul(s2, y2, z1z1z1);
// r = (s2 - s1)*2
@ -1129,10 +1129,10 @@ static void point_add(fe x3, fe y3, fe z3, const fe x1,
fe_add(i, h, h);
fe_sqr(i, i);
// J = ftmp2 = h * I
// J = h * I
fe j; fe_mul(j, h, i);
// V = ftmp4 = U1 * I
// V = U1 * I
fe v; fe_mul(v, u1, i);
// x_out = r**2 - J - 2V