  In this reply I address the comment by W-Y. Hwang and O. Gittsovich on my
paper [Phys. Rev. A {\bf 82}, 032313 (2010)]. The authors of the comment point
out that I use implicit assumption that the alphabet of the eavesdropper is
binary. They claim that such assumption is unrealistic. Here I show that even
without this assumption the main result of my paper still holds.
