An improved cryptographic algorithm using UNICODE and universal colors

With the growth of communication/transaction over internet and continuous efforts by cryptanalysts there is a continuous need for strong cryptographic algorithms. The primary goal, for designing such algorithms, is to provide security. However, performance and implementation ease and execution time are other factors that make an algorithm more usable. An improved encryption model, which is an extension of an existing encryption algorithm based on UNICODE and Colors map can be used. The cipher text that is generated by using improved encryption model is of the same size as the plain text and it will be suitable for practical use in the secure transmission of confidential information over the Internet.