Data Security With Colors Using Rsa

Data Security with Colors using RSA technique that integrates the RGB Color model with the well-known\ud public key cryptographic algorithm RSA (Rivest, Shamir and Adleman). This model provides both\ud confidentiality and authentication to the data sent across the network. RSA algorithm uses public key and\ud private key to encrypt and decrypt the data and thus provides confidentiality. But the public key is known to\ud everyone and so anyone can encrypt the data and send the message. Hence authentication of users is needed. In\ud this technique we use RGB color model to provide authentication. Every user will have a unique color assigned\ud to him. A sender must know the receiver’s color to send a message. The color value is encrypted using a key\ud which is used as a password while decrypting the message. To decrypt the message, the receiver must provide\ud his color values. If the decrypted color values and his color values are equal then the sender and receiver are\ud send to be authentic. The data encryption and decryption follows RSA procedure. Thus both authentication and\ud confidentiality are provided for the data