https://github.com/alexanderwe/playfair_cipher

Just a small simple playfair java program.
https://github.com/alexanderwe/playfair_cipher

Last synced: 23 days ago
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Just a small simple playfair java program.

• Host: GitHub
• URL: https://github.com/alexanderwe/playfair_cipher
• Owner: alexanderwe
• Created: 2015-06-19T12:26:02.000Z (over 9 years ago)
• Default Branch: master
• Last Pushed: 2015-07-11T13:28:52.000Z (over 9 years ago)
• Last Synced: 2023-02-27T12:37:25.139Z (over 1 year ago)
• Language: Java
• Size: 156 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

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README

        
# Playfair_Cipher

Just a small simple playfair java program.

# Run the jar-File

Run the jar-File in your command line. Navigate to the directory where the file is stored.

Type in command line to execute the program:  java -jar playfairchiffre.jar "yourkey" "your text to encode" then press "Enter"

Now your text will be encoded and decoded. Additionally you will see the playfair-matrix with your given key to analyse how the playfair-chifre work. 


#Sample output

    0 1 2 3 4  

0   S U R P I 


1   E A B C D 


2   F G H K L 


3   M N O Q T 


4   V W X Y Z 


________________


____________Enccode_____________


Original text: ILOVEYOU


Prepared text: ILOVEYOU


Bigrams: IL OV EY OU 


I+L


I found at: Row'0' and Column'4'


L found at: Row'2' and Column'4'


O+V


O found at: Row'3' and Column'2'


V found at: Row'4' and Column'0'


E+Y


E found at: Row'1' and Column'0'


Y found at: Row'4' and Column'3'


O+U


U found at: Row'0' and Column'1'


O found at: Row'3' and Column'2'


____________Decode_____________


Original text: DTMXCVNR


Prepared text: DTMXCVNR


Bigrams: DT MX CV NR 


D+T


D found at: Row'1' and Column'4'


T found at: Row'3' and Column'4'


M+X

M found at: Row'3' and Column'0'


X found at: Row'4' and Column'2'


C+V


C found at: Row'1' and Column'3'


V found at: Row'4' and Column'0'


N+R


R found at: Row'0' and Column'2'


N found at: Row'3' and Column'1'








____________Outputs_____________





Encoded text: DTMXCVNR


Decoded text: ILOVEYOU


Hope you enjoy the program.