BTW, the "salt" in salty licorice is Salmiak = ammonium chloride. It is what gives salty licorice its special taste.
Not like table salt (sodium chloride) at all.
Have you ever tried "Fisherman's Friend" strong lozenges? The regular variety contains licorice, but not salmiak, but it is strong like salty licorice is, so I think that could give you some idea. Actually, it is stronger than most salty licorice. The salmiak contents varies.
Most licorice over here contains a small amount of salmiak.