Placeholder for transposition ciphers.
It can be done, for example, like this:
After OTP is introduced as a "perfect" cipher write a story about mealleability attack against it.
That would give us a strong motivating example for transposition ciphers.
- Write words backwards (there can be a short chapter written backwards).
- Scytale
- Russian copulation -- the problem of standardised headers and footers can be explored here
- Shannon's confusion and diffusion
- P-boxes and S-boxes