Editing Vigenère cipher (section)

== References ==

=== Citations ===
{{Reflist|2}}

=== Sources ===
* {{cite book |first=Albrecht|last=Beutelspacher|year=1994|title=Cryptology|chapter=Chapter 2|others=translation from German by J. Chris Fisher|pages=27–41|publisher=Mathematical Association of America|isbn=0-883-85504-6|location=Washington, DC}}
* {{cite book|first=Simon|last=Singh| author-link=Simon Singh|year=1999|title=[[The Code Book]]|chapter=Chapter 2: Le Chiffre Indéchiffrable|publisher=Anchor Book, [[Random House]]|isbn=0-385-49532-3}}
* {{cite book|author=Helen F. Gaines|title=Cryptanalysis: A Study of Ciphers and Their Solution|url=https://books.google.com/books?id=Zb2RBQAAQBAJ&q=Gaines,+Helen+Fouche+%22Cryptanalysis+a+Study+of+Ciphers+and+Their+Solutions%22+1939+%22The+Gronsfeld,+Porta+and+Beaufort+Ciphers%22&pg=PA117|date=18 November 2014|publisher=Courier Corporation|isbn=978-0-486-80059-2|page=117}}
* {{cite journal |last=Mendelsohn |first=Charles J |year=1940 |title=Blaise De Vigenere and The 'Chiffre Carre' |journal=Proceedings of the American Philosophical Society |volume=82 |number=2}}