A columnar transposition, also known as a row-column transpose, is a very simple cipher to perform by hand. First, you write your message in columns. Then, you just rearrange the columns. For example.

We all have secrets to keep. Those secrets could be personal dirt we want to keep from others, or they could be something as mundane as our credit card numbers or medical histories. But all of us have ...

It's an old cipher used in the past. It's really simple. The plain text will be referred to as "string to hash" from now on. The string to hash will be "Hello world!" for now. First, we will create a ...

It’s been a couple of Math Mondays since we last looked at columnar transposition ciphers, so let’s jump back in. In the It’s been a couple of Math Mondays since we last looked at columnar ...

Abstract: Columnar transposition is a technique commonly used in text encryption to produce cipher text which is a permutation of its original text. In this study, the columnar transposition and ...