public void ExponentiateX(long pow, byte[] output)
{
ulong[] y = GcmUtilities.OneAsUlongs();
int bit = 0;
while (pow > 0)
{
if ((pow & 1L) != 0)
{
EnsureAvailable(bit);
GcmUtilities.Multiply(y, (ulong[])lookupPowX2[bit]);
}
++bit;
pow >>= 1;
}
GcmUtilities.AsBytes(y, output);
}
public void ExponentiateX(long pow, byte[] output)
{
// Initial value is little-endian 1
ulong[] y = GcmUtilities.OneAsUlongs();
if (pow > 0)
{
ulong[] powX = Arrays.Clone(x);
do
{
if ((pow & 1L) != 0)
{
GcmUtilities.Multiply(y, powX);
}
GcmUtilities.Square(powX, powX);
pow >>= 1;
}while (pow > 0);
}
GcmUtilities.AsBytes(y, output);
}