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We begin this discussion by reviewing the concept of randomness and "Random use of Numbers, explaining key terms including Nonce and Key Generation. Then we introduce Symmetric Encryption with a basic summary of how it works, correlate what cyphers are, and examine the different types of Symmetric Cyphers. We also look at what happens with block cyphers, what the difference means to encryption and decryption as a process and the difference between confusion and diffusion. You'll observe how this correlates to how algorithms work and the importance of strong math in configuring algorithms. And you'll learn what happens as algorithms are used and how they determine results in Cryptography.