For the last several years, I have been playing around with simple cryptography. I have made some of results of this available as a free PDF download as a book I call Tiny Book of Simple Cryptography. (TinyCrypto.pdf) I recently put some additional work into it and the latest version is available at the link above.
There are currently a baker’s dozen cryptographic methods described in the book. (List at the bottom of this post) Each write up includes a section on:
- Introduction
- Encrypting
- Decrypting
- Cryptography Issues
- Project Suggestions
If a PDF is not to your liking and you would like an actual book, I have created a book you can order through Amazon.com. Maybe for a classroom or school library? Or maybe because you find books easier to browse through. It’s there. There is also a Kindle version available here.
Methods covered
- Caesar Cipher
- Vigenère cipher
- Wheel Cipher
- One Time Pad
- Polybius Square
- PigPen Cipher
- Columnar Transposition Cipher
- Keyword Columnar Transposition Cipher
- Random Block Transposition Cipher
- Steganography
- Bacon’s Cipher
- Book Ciphers
- Playfair cipher
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