All About Project En-Decrypt✓[on~editing]

CAC: Vigenere Cipher

The Vigenère cipher (French pronunciation: [viʒnɛːʁ]) is a method of encrypting alphabetic text by using a series of interwoven Caesar ciphers based on the letters of a keyword.

-Sa vigenere cipher,required ang keyword. And syempre ng plaintext.

-Ang vigenere cipher ay gumagamit ng tabula recta na kung saan,iyong nasa left side,doon matatagpuan ang plaintext. While sa taas naman yung keyword. And 'yong intersection nila ang magiging ciphertext.

-Para ma-balance rin yung length,ang keyword ang mag-a-adjust.

Example :

Keyword:      G O D D E S S G O
Plaintext :  A P H R O D I  T  E

-Sa pag-e-encrypt,kunin ang first letter ng keyword at plaintext.

So here it goes..

Plaintext A + Keyword G = Ciphertext G
Plaintext P + Keyword O = Ciphertext D

All in all,we have "GDKUSVAZS" as our ciphertext.

-To decrypt,reverse the process.