Added transposition cipher slides

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

diff --git a/slides/keyword-encipher.html b/slides/keyword-encipher.html
index bb9e679775b9163bd9b19f9e636d3ee6fc1d3262..168bb5fb78628f7b0161d56641613646d4b62136 100644 (file)
--- a/slides/keyword-encipher.html
+++ b/slides/keyword-encipher.html
@@ -161,10 +161,6 @@ Write out the rest of the alphabet...
 
 2. and 3. How to find the appropriate letter of the keyword.
 
 
 2. and 3. How to find the appropriate letter of the keyword.
 

-Indexing pulls out letters. `'keyword'[0]` = 'k' ; `'keyword'[3]` = 'w' ; `'keyword'[-1]` = 'd'
-
-Slices pulls out substrings. `'keyword'[1:4]` = 'eyw' ; `'keyword'[:3]` = 'key' ; `'keyword'[5:]` = 'rd'
-

 `deduplicate(keyword + string_ascii_lowercase[from:] + string.ascii_lowercase)`
 
 Question: why not take a slice of the second alphabet copy?
 `deduplicate(keyword + string_ascii_lowercase[from:] + string.ascii_lowercase)`
 
 Question: why not take a slice of the second alphabet copy?