Hybrid Encryption Scheme (HES): An Approach for Transmitting Secure Data over Internet

Internet and network application are growing at very fast rate, so the need to protect such application are increased. This paper solves this problem by proposing two different encryption techniques. The first proposed technique focus on compression of data by half and the second technique justify Shallon's idea of diffusion by generating different cipher text character for single plaintext character for its different occurrences in the plaintext. The combinatorial effect of using existing symmetric algorithms along with the two proposed algorithms produces a Hybrid Encryption scheme that makes it difficult for adversary to learn any information from the message transmitted over an unsecure transmission medium.