Vigenère Cipher
- It uses the Matrix with rows and columns with the indices as alphabets in alphabetical order.
- There is a Key which points to a particular alphabet .This key is used to generate Cipher Text from the Plain Text
- From that key each word in the plain text is decoded such a way that the row alphabets corresponds to the plain text alphabets and matches to the Key word in the Column alphabets.
Drawbacks:
- Text Frequency analysis can be used to recover the plain text from cipher text.
Reference:
http://www.cs.mtu.edu/~shene/NSF-4/Tutorial/VIG/Vig-Base.html
Subscribe to:
Post Comments
(
Atom
)
No comments :
Post a Comment