A NEW COLOR ORIENTED CRYPTOGRAPHIC ALGORITHM BASED ON UNICODE AND RGB COLOR MODEL

Panchami V, Varghese Paul, Amithab Wahi

Abstract: RGB color oriented cryptography is a new research area in data security. In this paper a new approach to encrypt and decrypt information independent of the language using colors is proposed. The message of any language consists of set of Characters, Symbols, and Digits, and is encoded using UNICODE, so that any language can be encrypted. The UNICODE value of each character in the message is encrypted using the RGB color encryption method and is then compressed. Each cipher color has an equivalent hexadecimal value. This hexadecimal values is converted into its binary equivalent form. The binary values thus obtained are divided into two equal parts. The first part is treated as message and the second part is treated as key. XOR operation is applied between the two parts and thus achieving compression. In order to secure the key is encrypted using the RSA encryption algorithm. The last step of this proposed algorithm is optional, the cipher message is again encrypted to cipher color and then send through the insecure channel. If we want to hide the color information avoid this last step

Keywords: UNICODE Encoding, RGB color model, Data Compression

DOI: https://doi.org/10.15623/ijret.2014.0313016