Y(MATH)
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Y(MATH)

Who Wants To Be A Spy? Lesson Two.

In the previous article, lesson 1, I introduced the ideas of cryptology, gave some basic definitions, and discussed one of the most basic ciphers, the Caesar cipher. We finished off by deciding that the Caesar cipher was quite weak, meaning it was easy to break.

In this article, I want to discuss an improvement on the Caesar cipher, a cipher that gained the reputation of “the indecipherable cipher”.

As we discussed in the previous article, the problem with the Caesar cipher is that it is extremely easy to break. Since each letter is shifted the…

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