The pig pen cypher is a secret way of writing traced back to the 1500s. It has been used by religious groups, countries, armies, and spies! It is a simple substitution cypher that uses geometry, and exchanges letters for symbols which are fragments of a grid. It can be set up in different ways, but the most common example is this:
- Pig Pen Cypher
1. Look at this example of how to use the cypher.
You find the shape in the pig pen cypher then use the letter inside the shape.
2. Now, try figuring out the message is below:
3. Now that you know how the pig pen cypher works, try writing a secret message of your own! Can other people figure it out?