COLOR CRYPTOGRAPHY USING SUBSTITUTION METHOD

Abstract

The dangers to data security are expanding at quickly. The best and general way to deal with counter such dangers is encryption. In Traditional encryption procedures replacement and rendering is utilized. In Substitution procedures plaintext is planned into figure text. In all conventional replacement methods plaintext characters, numbers and extraordinary images are subbed with another characters, numbers and uncommon images. In this new strategy an imaginative cryptographic replacement is proposed to produce a more grounded figure than the current replacement calculations. This technique centre around the replacement of characters, numbers and extraordinary images with shading blocks. This calculation of replacement depends on Play Color Cipher. This is an even framework which is executed by encryption of text by changing over it into colors. Each character of the plaintext is scrambled into a square of shading. Each character will be subbed by an alternate shading block. A tale strong content encryption strategy by utilizing Armstrong number, shading code, prime number and ASCII codes by utilizing replacement and stage procedure. In this encryption procedure 512-cycle size key is utilized for encryption. In replacement strategy message is changes into ASCII codes .In the proposed procedure irregular Armstrong number, prime number, shading code are created and key is scrambled by base-64 encoding for greater security. In the change cycle increase, expansion is performed on the information for encryption. The proposed approach deals with the symmetric encryption. The proposed method is then contrasted and the standard IDEA calculation. Result shows that the proposed method is hearty, quick and secure