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Import libgcrypt 1.5.3.

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This commit is contained in:
Vladimir Serbinenko 2013-11-07 06:35:50 +01:00
parent c12936c5d1
commit d1307d873a
72 changed files with 11732 additions and 2916 deletions
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23
grub-core/lib/libgcrypt/mpi/ec.c
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@ -522,7 +522,7 @@ _gcry_mpi_ec_add_points (mpi_point_t *result,
ec_mulm (l1, l1, x1, ctx);
}
if (z1_is_one)
mpi_set (l2, x1);
mpi_set (l2, x2);
else
{
ec_powm (l2, z1, ctx->two, ctx);
@ -670,10 +670,23 @@ _gcry_mpi_ec_mul_point (mpi_point_t *result,
mpi_mul (h, k, ctx->three); /* h = 3k */
loops = mpi_get_nbits (h);
mpi_set (result->x, point->x);
mpi_set (result->y, yy); mpi_free (yy); yy = NULL;
mpi_set (result->z, point->z);
if (loops < 2)
{
/* If SCALAR is zero, the above mpi_mul sets H to zero and thus
LOOPs will be zero. To avoid an underflow of I in the main
loop we set LOOP to 2 and the result to (0,0,0). */
loops = 2;
mpi_clear (result->x);
mpi_clear (result->y);
mpi_clear (result->z);
}
else
{
mpi_set (result->x, point->x);
mpi_set (result->y, yy);
mpi_set (result->z, point->z);
}
mpi_free (yy); yy = NULL;
p1.x = x1; x1 = NULL;
p1.y = y1; y1 = NULL;