Ceaser Cipher Technique of Encryption

Implementation of ceaser cipher technique.

Concept: This technique of encryption is used to encrypt alphabets by shifting them by some number of letters.Such as,if our plaintext is ABC and cipher key is 2 then our plaintext will be shifted by 2 alphabets and cipher text will be CDE. Basically no body can read this text after encryption.

                    There are many tools are available to implement this technique.

Mathematical Description §

First we translate all of our characters to numbers, 'a'=0, 'b'=1, 'c'=2, ... , 'z'=25. We can now represent the caesar cipher encryption function, e(x), where x is the character we are encrypting, as:

Where k is the key (the shift) applied to each letter. After applying this function the result is a number which must then be translated back into a letter. The decryption function is :

Demo: Here  I am going to perform a live ceaser encryption.

Such as shown below:

·       I went to url= www.learncrytography.com/tools/ceaser-cipher

·       Put some text in plaintext field

·       Enter shift amount 6

·       Click on encrypt

·       My text has been encrypted with ceaser cipher

Tools: there are many online websites and encryption portals which allows us to perform ceaser cipher.

·       http://tools.zenverse.net/caesar-cipher/

·       https://www.dcode.fr/caesar-cipher

·       www.learncrytography.com/tools/ceaser-cipher

·       https://www.xarg.org/tools/caesar-cipher/

·       Ceaser cipher simulator

·       Ceaser shift cipher tool

·       Ceaser cipher 0.3

·       Ceaser cipher encryption

Resources:

·       http://tools.zenverse.net/caesar-cipher/  live perform

·       https://www.dcode.fr/caesar-cipher    live online perform

·       www.learncrytography.com/tools/ceaser-cipher online perform

·       https://www.xarg.org/tools/caesar-cipher/ online perform

·       https://sourceforge.net/projects/encryption-decryption/    download tool

·       http://www.softpedia.com/get/Security/Encrypting/Tran-Caesar-Cipher.shtml   tool download

·       http://caesar.softwaresea.com/Windows-software-download/caesar-cipher download tools

·       https://www.youtube.com/watch?v=o6TPx1Co_wg youtube tutorial

https://en.wikipedia.org/wiki/Caesar_cipher