Done transposition slides

[cipher-training.git] / slides / transposition-encipher.html

diff --git a/slides/transposition-encipher.html b/slides/transposition-encipher.html
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--- a/slides/transposition-encipher.html
+++ b/slides/transposition-encipher.html
@@ -223,6 +223,20 @@ Put it all together
 
 ---
 
+# Back to the scytale
+
+Key is number of rows.
+
+No transposition of columns.
+
+* What does a null transposition look like?
+
+How to fill and empty?
+
+(Transposing the grid is easier)
+
+---
+
 # Masking the fill characters
 
 Padding characters can be distinctive.