After finishing this tutorial, you should have a good understanding of the principles that underlie symmetric and asymmetric encryption algorithms. Tutorial users have also seen one example of constructing an actual protocol based on the these covered algorithms. In the next installment, users will discover two main things: (1) the ways that fundamental algorithms can be combined to achieve a number of "exotic" and somewhat wondrous goals; (2) some limitations and pitfalls that broad cryptographic goals are subject to. Stay tuned.