A simple method of encryption requires the use of a technique known as the Caesar cipher. The cipher works by giving a number value to a key. Each plaintext letter is replaced by a new letter ...

A simple method of encryption is a technique known as the Caesar cipher. The cipher works by using a numerical key. Each plaintext letter is replaced by a new letter, the one found at the original ...

74, Issue. , p. 444. Originally published in the New Mathematical Library almost half a century ago, this charming book explains how to solve cryptograms based on elementary mathematical principles, ...