In part I of this series, we introduced the idea of a cipher for encrypting and decrypting text between two entities. We now continue with part II, where we will learn how two different parties can establish a shared secret.
PART II: A SHARED SECRET
Mathematical tools: The modulus and the power
The first mathematical tool we are going to use is called the modulus function. To understand the modulus function, let’s look at an example. We want to know the value for 29 modulus 8, or 29 mod 8 for…